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This file describes changes in recent versions of Slurm. It primarily
documents those changes that are of interest to users and administrators.
* Changes in Slurm 17.11.5
==========================
-- Fix cloud nodes getting stuck in DOWN+POWER_UP+NO_RESPOND state after not
responding by ResumeTimeout.
-- Add job's array_task_cnt and user_name along with partitions
[max|def]_mem_per_[cpu|node], max_cpus_per_node, and max_share with the
SHARED_FORCE definition to the job_submit/lua plugin.
-- srun - fix for SLURM_JOB_NUM_NODES env variable assignment.
-- sacctmgr - fix runaway jobs identification.
-- Fix for setting always the correct status on job update in mysql.
-- Fix issue if running with an association manager cache (slurmdbd was down
when slurmctld was started) you could loose QOS usage information.
-- CRAY - Fix spec file to work correctly.
-- Set scontrol exit code to 1 if attempting to update a node state to DRAIN
or DOWN without specifying a reason.
* Changes in Slurm 17.11.4
==========================
-- Add fatal_abort() function to be able to get core dumps if we hit an
"impossible" edge case.
-- Link slurmd against all libraries that slurmstepd links to.
Alejandro Sanchez
committed
-- Fix limits enforce order when they're set at partition and other levels.
-- Add slurm_load_single_node() function to the Perl API.
-- slurm.spec - change dependency for --with lua to use pkgconfig.
-- Fix small memory leaks in node_features plugins on reconfigure.
-- slurmdbd - only permit requests to update resources from operators or
administrators.
-- Fix handling of partial writes in io_init_msg_write_to_fd() which can
lead to job step launch failure under higher cluster loads.
-- MYSQL - Fix to handle quotes in a given work_dir of a job.
-- sbcast - fix a race condition that leads to "Unspecified error".
-- Log that support for the ChosLoc configuration parameter will end in Slurm
version 18.08.
-- Fix backfill performance issue where bf_min_prio_reserve was not respected.
-- Print MaxQueryTimeRange in "sacctmgr show config".
-- Correctly check return codes when creating a step to check if needing to
wait to retry or not.
-- Fix issue where a job could be denied by Reason=MaxMemPerLimit when not
requesting any tasks.
-- In perl tools, fix for regexp that caused extra incorrectly shown results.
-- Add some extra locks in fed_mgr to be extra safe.
-- Minor memory leak fixes in the fed_mgr on slurmctld shutdown.
-- Make sreport job reports also report duplicate jobs correctly.
-- Fix issues restoring certain Partition configuration elements, especially
when ReconfigFlags=KeepPartInfo is enabled.
-- Don't add TRES whose value is NO_VAL64 when building string line.
-- Fix removing array jobs from hash in slurmctld.
-- Print out missing user messages from jobsubmit plugin when srun/salloc are
waiting for an allocation.
-- Handle --clusters=all as case insensitive.
-- Only check requested clusters in federation when using --test-only
submission option.
-- In the federation, make it so you can cancel stranded sibling jobs.
-- Silence an error from PSS memory stat collection process.
-- Requeue jobs allocated to nodes requested to DRAIN or FAIL if nodes are
POWER_SAVE or POWER_UP, preventing jobs to start on NHC-failed nodes.
-- Make MAINT and OVERLAP resvervation flags order agnostic on overlap test.
-- Preserve node features when slurmctld daemons reconfigured including active
and available KNL features.
-- Prevent creation of multiple io_timeout threads within srun, which can
lead to fatal() messages when those unexpected and additional mutexes are
destroyed when srun shuts down.
-- burst_buffer/cray - Prevent use of "#DW create_persistent" and
"#DW destroy_persistent" directives available in Cray CLE6.0UP06. This
will be supported in Slurm version 18.08. Use "#BB" directives until then.
-- Fix task/cgroup affinity to behave correctly.
-- FreeBSD - fix build on systems built with WITHOUT_KERBEROS.
Alejandro Sanchez
committed
-- Fix to restore pn_min_memory calculated result to correctly enforce
MaxMemPerCPU setting on a partition when the job uses --mem.
Dominik Bartkiewicz
committed
-- slurmdbd - prevent infinite loop if a QOS is set to preempt itself.
-- Fix issue with log rotation for slurmstepd processes.
-- Revert node_features changes in 17.11.3 that lead to various segfaults on
slurmctld startup.
* Changes in Slurm 17.11.3
==========================
-- Sort sreport's reservation report by cluster, time_start, resv_name instead
of cluster, resv_name, time_start.
-- Avoid setting node in COMPLETING state indefinitely if the job initiating
the node reboot is cancelled while the reboot in in progress.
-- Scheduling fix for changing node features without any NodeFeatures plugins.
-- Improve logic when summarizing job arrays mail notifications.
-- Add scontrol -F/--future option to display nodes in FUTURE state.
-- Fix REASONABLE_BUF_SIZE to actually be 3/4 of MAX_BUF_SIZE.
-- When a job array is preempting make it so tasks in the array don't wait
to preempt other possible jobs.
-- Change free_buffer to FREE_NULL_BUFFER to prevent possible double free
in slurmstepd.
-- node_feature/knl_cray - Fix memory leaks that occur when slurmctld
reconfigured.
-- node_feature/knl_cray - Fix memory leak that can occur during normal
operation.
-- Fix srun environment variables for --prolog script.
-- Fix job array dependency with "aftercorr" option and some task arrays in
the first job fail. This fix lets all task array elements that can run
proceed rather than stopping all subsequent task array elements.
-- Fix potential deadlock in the slurmctld when using list_for_each.
-- Fix for possible memory corruption in srun when running heterogeneous job
steps.
-- Fix job array dependency with "aftercorr" option and some task arrays in
the first job fail. This fix lets all task array elements that can run
proceed rather than stopping all subsequent task array elements.
-- Fix output file containing "%t" (task ID) for heterogeneous job step to
be based upon global task ID rather than task ID for that component of the
heterogeneous job step.
-- MYSQL - Fix potential abort when attempting to make an account a parent of
itself.
-- Fix potentially uninitialized variable in slurmctld.
-- MYSQL - Fix issue for multi-dimensional machines when using sacct to
find jobs that ran on specific nodes.
-- Reject --acctg-freq at submit if invalid.
-- Added info string on sh5util when deleting an empty file.
-- Correct dragonfly topology support when job allocation specifies desired
switch count.
-- Fix minor memory leak on an sbcast error path.
-- Fix issues when starting the backup slurmdbd.
-- Revert uid check when requesting a jobid from a pid.
-- task/cgroup - add support to detect OOM_KILL cgroup events.
-- Fix whole node allocation cpu counts when --hint=nomultihtread.
-- Allow execution of task prolog/epilog when uid has access
rights by a secondary group id.
-- Validate command existence on the srun *[pro|epi]log options
if LaunchParameter test_exec is set.
-- Fix potential memory leak if clean starting and the TRES didn't change
from when last started.
Alejandro Sanchez
committed
-- Fix for association MaxWall enforcement when none is given at submission.
-- Add a job's allocated licenses to the [Pro|Epi]logSlurmctld.
-- burst_buffer/cray: Attempts by job to create persistent burst buffer when
one already exists owned by a different user will be logged and the job
held.
-- CRAY - Remove race in the core_spec where we add the slurmstepd to the
job container where if the step was canceled would also cancel the stepd
erroneously.
-- Make sure the slurmstepd blocks signals like SIGTERM correctly.
-- SPANK - When slurm_spank_init_post_opt() fails return error correctly.
-- When revoking a sibling job in the federation we want to send a start
message before purging the job record to get the uid of the revoked job.
-- Make JobAcctGatherParams options case-insensitive. Previously, UsePss
was the only correct capitialization; UsePSS or usepss were silently
ignored.
-- Prevent pthread_atfork handlers from being added unnecessarily after
'scontrol reconfigure', which can eventually lead to a crash if too
many handlers have been registered.
-- Better debug messages when MaxSubmitJobs is hit.
-- Docs - update squeue man page to describe all possible job states.
Danny Auble
committed
-- Prevent orphaned step_extern steps when a job is cancelled while the
prolog is still running.
* Changes in Slurm 17.11.2
==========================
-- jobcomp/elasticsearch - append Content-Type to the HTTP header.
-- MYSQL - Fix potential abort of slurmdbd when job has no TRES.
-- Add advanced reservation flag of "REPLACE_DOWN" to replace DOWN or DRAINED
nodes.
-- slurm.spec-legacy - add missing libslurmfull.so to slurm.files.
-- Fix squeue job ID filtering for pending job array records.
-- Fix potential deadlock in _run_prog() in power save code.
-- MYSQL - Add dynamic_offset in the database to force range for auto
increment ids for the tres_table.
-- MYSQL - Fix fallout from MySQL auto increment bug, see RELEASE_NOTES,
only affects current 17.11 users tracking licenses or GRES in the database.
-- Refactor logging logic to avoid possible memory corruption on non-x86
architectures.
-- Fix memory leak when getting jobs from the slurmdbd.
-- Fix incorrect logic behind MemorySwappiness, and only set the value when
specified in the configuration.
* Changes in Slurm 17.11.1-2
============================
-- MYSQL - Make index for pack_job_id
* Changes in Slurm 17.11.1
==========================
-- Fix --with-shared-libslurm option to work correctly.
-- Make it so only daemons log errors on configuration option duplicates.
-- Fix for ConstrainDevices=yes to work correctly.
-- Fix to purge old jobs using burst buffer if slurmctld daemon restarted
after the job's burst buffer work was already completed.
-- Make logging prefix for slurmstepd to happen as soon as possible.
-- mpi/pmix: Fix the job registration for the PMIx v2.1.
-- Fix uid check for signaling a step with anything but SIGKILL.
-- Return ESLURM_TRANSITION_STATE_NO_UPDATE instead of EAGAIN when trying to
signal a step that is still running a prolog.
David Gloe
committed
-- Update Cray slurm_playbook.yaml with latest recommended version.
-- Only say a prolog is done running after the extern step is launched.
-- Wait to start a batch step until the prolog and extern step are
fully ran/launched. Only matters if running with
PrologFlags=[contain|alloc].
-- Truncate a range for SlurmctldPort to FD_SETSIZE elements and throw an
error, otherwise network traffic may be lost due to poll() not detecting
traffic.
-- Fix for srun --pack-group option that can reuse/corrupt memory.
-- Fix handling ultra long hostlists in a hostfile.
-- X11: fix xauth regex to handle '-' in hostnames again.
-- Fix potential node reboot timeout problem for "scontrol reboot" command.
-- Add ability for squeue to sort jobs by submit time.
-- CRAY - Switch to standard pid files on Cray systems.
-- Update jobcomp records on duplicate inserts.
-- If unrecognized configuration file option found then print an appropriate
fatal error message rather than relying upon random errno value.
-- Initialize job_desc_msg_t's instead of just memset'ing them.
-- Fix divide by zero when job requests no tasks and more memory than
MaxMemPer{CPU|NODE}.
-- Avoid changing Slurm internal errno on syslog() failures.
-- BB - Only launch dependent jobs after the burst buffer is staged-out
completely instead of right after the parent job finishes.
-- node_features/knl_generic - If plugin can not fully load then do not spawn
a background pthread (which will fail with invalid memory reference).
-- Don't set the next jobid to give out to the highest jobid in the system on
controller startup. Just use the checkpointed next use jobid.
-- Docs - add Slurm/PMIx and OpenMPI build notes to the mpi_guide page.
-- Add lustre_no_flush option to LaunchParameters for Native Cray systems.
-- Fix rpmbuild issue with rpm 4.13+ / Fedora 25+.
-- sacct - fix the display for the NNodes field when using the --units option.
-- Prevent possible double-xfree on a buffer in stepd_completion.
Alejandro Sanchez
committed
-- Fix for record job state on successful allocation but failed reply message.
-- Fill in the user_name field for batch jobs if not sent by the slurmctld.
(Which is the default behavior if PrologFlags=send_gids is not enabled.)
This prevents job launch problems for sites using UsePAM=1.
-- Handle syncing federated jobs that ran on non-origin clusters and were
cancelled while the origin cluster was down.
-- Fix accessing variable outside of lock.
-- slurm.spec: move libpmi to a separate package to solve a conflict with the
version provided by PMIx. This will require a separate change to PMIx as
well.
-- X11 forwarding: change xauth handling to use hostname/unix:display format,
rather than localhost:display.
-- mpi/pmix - Fix warning if not compiling with debug.
* Changes in Slurm 17.11.0
==========================
-- Fix documentation for MaxQueryTimeRange option in slurmdbd.conf.
-- Avoid srun abort trying to run on heterogeneous job component that has
ended.
-- Add SLURM_PACK_JOB_ID,SLURM_PACK_JOB_OFFSET to PrologSlurmctld and
EpilogSlurmctld environment.
-- Treat ":" in #SBATCH arguments as fatal error. The "#SBATCH packjob" syntax
must be used instead.
-- job_submit/lua plugin: expose pack_job fields to get.
-- Prevent scheduling deadlock with multiple components of heterogeneous job
in different partitions (i.e. one heterogeneous job component is higher
priority in one partition and another component is lower priority in a
different partition).
-- Fix for heterogeneous job starvation bug.
-- Add SLURM_PACK_JOB_NODELIST to PrologSlurmctld and EpilogSlurmctld
environment.
-- If PrologSlurmctld fails for pack job leader then requeue or kill all
components of the job.
-- Fix for mulitple --pack-group srun arguments given out of order.
-- Update slurm.conf(5) man page with updated example logrotate script.
-- Add SchedulerParameters=whole_pack configuration parameter. If set, then
hold, release and cancel operations on any component of a heterogeneous job
will be applied to all components
-- Handle FQDNs in xauth cookies for x11 display forwarding properly.
-- For heterogeneous job steps, the srun --open-mode option default value will
be set to "append".
-- Pack job scheduling list not being cleared between runs of the backfill
scheduler resulted in various anomalies.
-- Fix that backward compat for pmix version < 1.1.5.
-- Fix use-after-free that can lead to slurmstepd segfaulting when setting
ulimit values.
-- Add heterogeneous job start data to sdiag output.
-- X11 forwarding - handle systems with X11UseLocalhost=no set in sshd_config.
-- Fix potential missing issue with missin symbols in gres plugins.
-- Ignore querying clusters in federation that are down from status commands.
-- Base federated jobs off of origin job and not the local cluster in API.
-- Remove erroneous double '-' on rpath for libslurmfull.
-- Remove version from libslurmfull and move it to $LIBDIR/slurm since the ABI
could change from one version to the other.
-- Fix unused wall time for reservations.
-- Convert old reservation records to insert unused wall into the rows.
-- slurm.spec: further restructing and improvements.
-- Allow nodes state to be updated between FAIL and DRAIN.
-- x11 forwarding: handle build with alternate location for libssh2.
* Changes in Slurm 17.11.0rc3
==============================
-- Fix extern step to wait until launched before allowing job to start.
-- Add missing locks around figuring out TRES when clean starting the
slurmctld.
-- Cray modulefile: avoid removing /usr/bin from path on module unload.
-- Make reoccurring reservations show up in the database.
-- Adjust related resources (cpus, tasks, gres, mem, etc.) when updating
NumNodes with scontrol.
-- Don't initialize MPI plugins for batch or extern steps.`
-- slurm.spec - do not install a slurm.conf file under /etc/ld.so.conf.d.
-- X11 forwarding - fix keepalive message generation code.
-- If heterogeneous job step is unable to acquire MPI reserved ports then
avoid referencing NULL pointer. Retry assigning ports ONLY for
non-heterogeneous job steps.
Dominik Bartkiewicz
committed
-- If any acct_gather_*_init fails fatal instead of error and keep going.
-- launch/slurm plugin - Avoid using global variable for heterogeneous job
steps, which could corrupt memory.
* Changes in Slurm 17.11.0rc2
==============================
-- Prevent slurmctld abort with NodeFeatures=knl_cray and non-KNL nodes lacking
any configured features.
-- The --cpu_bind and --mem_bind options have been renamed to --cpu-bind
and --mem-bind for consistency with the rest of Slurm's options. Both
old and new syntaxes are supported for now.
-- Add slurmdb_connection_commit to the slurmdb api to commit when needed.
-- Add the federation api's to the slurmdb.h file.
-- Fix sacct to always use the db_api instead of sometimes calling functions
directly.
-- Fix sacctmgr to always use the db_api instead of sometimes calling functions
directly.
-- Fix sreport to always use the db_api instead of sometimes calling functions
directly.
-- Make global uid to the db_api to minimize calls to getuid().
-- Added more validation logic for updates to node features.
-- Added node_features_p_node_update_valid() function to node_features plugin.
-- If a job is held due to bad constraints and a node's features change then
test the job again to see if can run with the new features.
-- Added node_features_p_changible_feature() function to node_features plugin.
-- Avoid rebooting a node if a job's requested feature is not under the control
of the node_features plugin and is not currently active.
-- node_features/knl_generic plugin: Do not clear a node's non-KNL features
specified in slurm.conf.
-- Added SchedulerParameters configuration option "disable_hetero_steps" to
disable job steps that span multiple components of a heterogeneous job.
Disabled by default except with mpi/none plugin. This limitation to be
removed in Slurm version 18.08.
* Changes in Slurm 17.11.0rc1
-- Added the following jobcomp/script environment variables: CLUSTER,
DEPENDENCY, DERIVED_EC, EXITCODE, GROUPNAME, QOS, RESERVATION, USERNAME.
The format of LIMIT (job time limit) has been modified to D-HH:MM:SS.
-- Fix QOS usage factor applying to individual TRES run minute usage.
-- Print numbers using exponential format if required to fit in allocated
field width. The sacctmgr and sshare commands are impacted.
-- Make it so a backup DBD doesn't attempt to create database tables and
relies on the primary to do so.
Danny Auble
committed
-- By default have Slurm dynamically link to libslurm.so instead of static
linking. If static linking is desired configure with
--without-shared-libslurm.
Danny Auble
committed
-- Change --workdir in sbatch to be --chdir as in all other commands (salloc,
srun).
-- Add WorkDir to the job record in the database.
-- Make the UsageFactor of a QOS work when a qos has the nodecay flag.
-- Add MaxQueryTimeRange option to slurmdbd.conf to limit accounting query
ranges when fetching job records.
-- Add LaunchParameters=batch_step_set_cpu_freq to allow the setting of the cpu
frequency on the batch step.
-- CRAY - Fix statically linked applications to CRAY's PMI.
-- Fix - Raise an error back to the user when trying to update currently
unsupported core-based reservations.
-- Do not print TmpDisk space as part of 'slurmd -C' line.
Alejandro Sanchez
committed
-- Fix to test MaxMemPerCPU/Node partition limits when scheduling, previously
only checked on submit.
-- Work for heterogeneous job support (complete solution in v17.11):
* Set SLURM_PROCID environment variable to reflect global task rank (needed
by MPI).
* Set SLURM_NTASKS environment variable to reflect global task count (needed
by MPI).
* In srun, if only some steps are allocated and one step allocation fails,
then delete all allocated steps.
* Get SPANK plungins working with heterogeneous jobs. The
spank_init_post_opt() function is executed once per job component.
* Modify sbcast command and srun's --bcast option to support heterogeneous
jobs.
* Set more environment variables for MPI: SLURM_GTIDS and SLURM_NODEID.
* Prevent a heterogeneous job allocation from including the same nodes in
multiple components (required by MPI jobs spanning components).
* Modify step create logic so that call components of a heterogeneous job
launched by a single srun command have the same step ID value.
-- Modify output of "--mpi=list" to avoid duplicates for version numbers in
mpi/pmix plugin names.
-- Allow nodes to be rebooted while in a maintenance reservation.
-- Show nodes as down even when nodes are in a maintenance reservation.
-- Harden the slurmctld HA stack to mitigate certain split-brain issues.
-- Work for heterogeneous job support (complete solution in v17.11):
* Add burst buffer support.
* Remove srun's --mpi-combine option (always combined).
* Add SchedulerParameters configuration option "enable_hetero_steps" to
enable job steps that span multiple components of a heterogeneous job.
Disabled by default as most MPI implementations and Slurm configurations
are not currently supported. Limitation to be removed in Slurm version
18.08.
* Synchronize application launch across multiple components with debugger.
* Modify slurm_kill_job_step() to cancel all components of a heterogeneous
job step (used by MPI).
* Set SLURM_JOB_NUM_NODES environment variable as needed by MVAPICH.
* Base time limit upon the time that the latest job component is available
(after all nodes in all components booted and ready for use).
-- Add cluster name to smail tool email header.
-- Speedup arbitrary distribution algorithm.
-- Modify "srun --mpi=list" output to match valid option input by removing the
"mpi/" prefix on each line of output.
-- Automatically set the reservation's partition for the job if not the
cluster default.
-- mpi/pmi2 plugin - vestigial pointer could be referenced at shutdown with
invalid memory reference resulting.
Dominik Bartkiewicz
committed
-- Fix to _is_gres_cnt_zero() return false for improper input string
-- Cleanup all pthread_create calls and replace with new slurm_thread_create
macro.
-- Removed obsolete MPI plugins. Remaining options are openmpi, pmi2, pmix.
-- Removed obsolete checkpoint/poe plugin.
-- Process spank environment variable options before processing spank command
line options. Spank plugins should be able to handle option callbacks being
called multiple times.
-- Add support for specialized cores with task/affinity plugin (previously
only supported with task/cgroup plugin).
-- Add "TaskPluginParam=SlurmdOffSpec" option that will prevent the Slurm
compute node daemons (slurmd and slurmstepd) from executing on specialized
cores.
-- CRAY - Make native mode default, use --disable-native-cray to use ALPS
instead of native Slurm.
-- Add ability to prevent suspension of some count of nodes in a specified
range using the SuspendExcNodes configuration parameter.
-- Add SLURM_WCKEY to PrologSlurmctld and EpilogSlurmctld environment.
-- Return user response string in response to successful job allocation request
not only on failure. Set in LUA using function 'slurm.user_msg("STRING")'.
-- Add 'scontrol write batch_script <jobid>' command to retrieve the batch
script for a given job.
-- Remove option to display the batch script as part of 'scontrol show job'.
-- On native Cray system the configured RebootProgram is executed on on the
head node by the slurmctld daemon rather than by the slurmd daemons on the
compute nodes. The "capmc_resume" program from "contribs/cray" can be used.
-- Modify "scontrol top" command to accept a comma separated list of job IDs
as an argument rather than a single job ID.
-- Add MemorySwappiness value to cgroup.conf.
-- Add new "billing" TRES which allows jobs to be limited based on the job's
billable TRES calculated by the job's partition's TRESBillingWeights.
-- sbatch - force line-buffered output so 'sbatch -W' returns the jobid
over a piped output immediately.
-- Regular user use of "scontrol top" command is now diabled. Use the
configuration parameter "SchedulerParameters=enable_user_top" to enable
that functionality. The configuration parameter
"SchedulerParameters=disable_user_top" will be silently ignored.
-- Add -TALL to sreport.
-- Removed unused SlurmdPlugstack option and associated framework.
-- Correct logic for line continuation in srun --multi-prog file.
-- Add DBD Agent queue size to sdiag output.
-- Add running job count to sdiag output.
-- Print unix timestamps next to ASCII timestamps in sdiag output.
-- In a job allocation spanning KNL and non-KNL nodes and requiring a reboot,
do not attempt to set default NUMA or MCDRAM modes on non-KNL nodes.
-- Change default to let pending jobs run outside of reservation after
reservation is gone to put jobs in held state. Added NO_HOLD_JOBS_AFTER_END
reservation flag to use old default.
-- When creating a reservation, validate the CoreCnt specification matches
-- When creating a reservation, correct logic to ignoring job allocations on
request.
-- Deprecate BLCR plugin, and do not build by default.
-- Change sreport report titles from "Use" to "Usage"
* Changes in Slurm 17.11.0pre2
==============================
-- Initial work for heterogeneous job support (complete solution in v17.11):
* Modified salloc, sbatch and srun commands to parse command line, job
script and environment variables to recognize requests for heterogeneous
jobs. Same commands also modified to set environment variables describing
each component of the heterogeneous job.
* Modified job allocate, batch job submit and job "will-run" requests to
pass a list of job specifications and get a list of responses.
* Modify slurmctld daemon to process a heterogeneous job request and create
multiple job records as needed.
* Added new fields to job record: pack_job_id, pack_job_offset and
pack_job_set (set of job IDs). Added to slurmctld state save/restore
logic and job information reported.
* Display new job fields in "scontrol show job" output.
* Modify squeue command to display heterogeneous job records using "#+#"
format. The squeue --job=# output lists all components of a heterogeneous
job.
* Modify scancel logic to cancel all components of a heterogeneous job with
a single request/RPC.
* Configuration parameter DebugFlags value of "HeteroJobs" added.
* Job requeue and suspend/resume modified to operate on all components of
a heterogeneous job with a single request/RPC.
* New web page added to describe heterogeneous jobs.
* Descriptions of new API added to man pages.
* Modified email notifications to only operate on the first job component.
* Purge heterogeneous job records at the same time and not by individual
* Modified logic for heterogeneous jobs submitted to multiple clusters
("--clusters=...") so the job will be routed to the cluster that is
expected to start all components earliest.
* Modified srun to create multiple job steps for heterogeneous job
allocations.
* Modified launch plugin to accept a pointer to job step options structure
rather than work from a single/common data structure.
-- Improve backfill scheduling algorithm with respect to starting jobs as soon
as possible while avoiding advanced reservations.
-- Add URG as an option to 'scancel --signal'.
Dominik Bartkiewicz
committed
-- Check if the buffer returned from slurm_persist_msg_pack() isn't NULL.
-- Modify all daemons to re-open log files on receipt of SIGUSR2 signal. This
is much than using SIGHUP to re-read the configuration file and rebuild
various tables.
-- Add PrivateData=events configuration parameter
-- Work for heterogeneous job support (complete solution in v17.11):
* Add pointer to job option structure to job_step_create_allocation()
* Parallelize task launch for heterogeneous job allocations (initial work).
* Make packjobid, packjoboffset, and packjobidset fields available in squeue
output.
* Modify smap command to display heterogeneous job records using "#+#"
format.
* Add srun --pack-group and --mpi-combine options to control job step
launch behaviour (not fully implemented).
* Add pack job component ID to srun --label output (e.g. "P0 1:" for
job component 0 and task 1).
* jobcomp/elasticsearch: Add pack_job_id and pack_job_offset fields.
* sview: Modified to display pack job information.
* Major re-write of task state container logic to support for list of
containers rather than one container per srun command.
* Add srun pack job environment variables when performing job allocation.
-- Set Reason=dependency over Reason=JobArrayTaskLimit for pending jobs.
-- Add slurm.conf configuration parameters SlurmctldSyslogDebug and
SlurmdSyslogDebug to control which messages from the slurmctld and slurmd
daemons get written to syslog.
-- Add slurmdbd.conf configuration parameter DebugLevelSyslog to control which
messages from the slurmdbd daemon get written to syslog.
-- Fix handling of GroupUpdateForce option.
-- Work for heterogeneous job support (complete solution in v17.11):
* Add support to sched/backfill for concurrent allocation of all pack job
components including support of --time-min option.
* Defer initiation of a heterogeneous job until a components can be started
at the same time, taking into consideration association and QOS limits
for the job as a whole.
* Perform limit check on heterogeneous job as a whole at submit time to
reject jobs that will never be able to run.
* Add pack_job_id and pack_job_offset to accounting database.
* Modified sacct to accept pack job ID specification using "#+#" notation.
* Modified sstat to accept pack job ID specification using "#+#" notation.
-- Clear a job's "wait reason" value of BeginTime" after that time has passed.
Previously a readon of "BeginTime" could be reported long after the job's
requested begin time had passed.
-- Split group_info in slurm_ctl_conf_t into group_force and group_time.
-- Work for heterogeneous job support (complete solution in v17.11):
* Fix I/O race condition on step termination for srun launching multiple
pack job groups.
* If prolog is running when attempting to signal a step, then return EAGAIN
and retry rather than simply returning SLURM_ERROR and aborting.
* Modify launch/slurm plugin to signal all components of a pack job rather
than just the one (modify to use a list of step context records).
* Add logic to support srun --mpi-combine option.
* Set up debugger data structures.
* Disable cancellation of individual component while the job is pending.
* Modify scontrol job hold/release and update to operate with heterogeneous
job id specification (e.g. "scontrol hold 123+4").
* If srun lacks application specification for some component, the next one
specified will be used for earlier components.
* Changes in Slurm 17.11.0pre1
==============================
-- Interpet all format options in output/error file to log prolog errors. Prior
logic only supported "%j" (job ID) option.
Danny Auble
committed
-- Add the configure option --with-shared-libslurm which will link to
libslurm.so instead of libslurm.o thus reducing the footprint of all the
binaries.
-- In switch plugin, added plugin_id symbol to plugins and wrapped
switch_jobinfo_t with dynamic_plugin_data_t in interface calls in
order to pass switch information between clusters with different switch
types.
-- Switch naming of acct_gather_infiniband to acct_gather_interconnect
-- Add a last_sched_eval timestamp to record when a job was last evaluated
by the main scheduler or backfill.
-- Add scancel "--hurry" option to avoid staging out any burst buffer data.
-- Simplify the sched plugin interface.
-- Add new advanced reservation flags of "weekday" (repeat on each weekday;
Monday through Friday) and "weekend" (repeat on each weekend day; Saturday
and Sunday).
-- Add new advanced reservation flag of "flex", which permits jobs requesting
the reservation to begin prior to the reservation's start time and use
resources inside or outside of the reservation. A typical use case is to
prevent jobs not explicitly requesting the reservation from using those
reserved resources rather than forcing jobs requesting the reservation to
use those resources in the time frame reserved.
-- Node "OS" field expanded from "sysname" to "sysname release version" (e.g.
change from "Linux" to
"Linux 4.8.0-28-generic #28-Ubuntu SMP Sat Feb 8 09:15:00 UTC 2017").
-- jobcomp/elasticsearch - Add "job_name" and "wc_key" fields to stored
information.
-- jobcomp/filetxt - Add ArrayJobId, ArrayTaskId, ReservationName, Gres,
Account, QOS, WcKey, Cluster, SubmitTime, EligibleTime, DerivedExitCode and
ExitCode.
-- scontrol modified to report core IDs for reservation containing individual
cores.
-- MYSQL - Get rid of table join during rollup which speeds up the process
dramatically on large job/step tables.
-- Add ability to define features on clusters for directing federated jobs to
different clusters.
-- Add new RPC to process multiple federation RPCs in a single communication.
-- Modify slurm_load_jobs() function to load job information from all clusters
in a federation.
-- Add squeue --local and --sibling options to modify filtering of jobs on
federated clusters.
-- Add SchedulerParameters option of bf_max_job_user_part to specifiy the
maximum number of jobs per user for any single partition. This differs from
bf_max_job_user in that a separate counter is applied to each partition
rather than having a single counter per user applied to all partitions.
-- Modify backfill logic so that bf_max_job_user, bf_max_job_part and
bf_max_job_user_part options can all be used independently of each other.
-- Add sprio -p/--partition option to filter jobs by partition name.
-- Add partition name to job priority factor response message.
-- Add sprio --local and --sibling options for use in federation of clusters.
-- Add sprio "%c" format to print cluster name in federation mode.
-- Modify sinfo logic to provided unified view of all nodes and partitions
in a federation, add --local option to only report local state information
even in a cluster, print cluster name with "%V" format option, and
optionally sort by cluster name.
-- If a task in a parallel job fails and it was launched with the
--kill-on-bad-exit option then terminate the remaining tasks using the
SIGCONT, SIGTERM and SIGKILL signals rather than just sending SIGKILL.
-- Include submit_time when doing the sort for job scheduling.
-- Modify sacct to report all jobs in federation by default. Also add --local
option.
-- Modify sacct to accept "--cluster all" option (in addition to the old
"--cluster -1", which is still accepted).
-- Modify sreport to report all jobs in federation by default. Also add --local
option.
-- sched/backfill: Improve assoc_limit_stop configuration parameter support.
-- KNL features: Always keep active and available features in the same order:
first site-specific features, next MCDRAM modes, last NUMA modes.
-- Changed default ProctrackType to cgroup.
-- Add "cluster_name" field to node_info_t and partition_info_t data structure.
It is filled in only when the cluster is part of a federation and
-- Functions slurm_load_node() slurm_load_partitions() modified to show all
nodes/partitions in a federation when the SHOW_FEDERATION flag is used.
-- Add --federation option to sacct, scontrol, sinfo, sprio, squeue, sreport to
show a federated view. Will show local view by default.
-- Add FederationParameters=fed_display slurm.conf option to configure status
commands to display a federated view by default if the cluster is a member
of a federation.
-- Log the down nodes whenever slurmctld restarts.
-- Report that "CPUs" plus "Boards" in node configuration invalid only if the
CPUs value is not equal to the total thread count.
-- Extend the output of the seff utility to also include the job's wall-clock
time.
-- Add bf_max_time to SchedulerParameters.
-- Add bf_max_job_assoc to SchedulerParameters.
-- Add new SchedulerParameters option bf_window_linear to control the rate at
which the backfill test window expands. This can be used on a system with
a modest number of running jobs (hundreds of jobs) to help prevent expected
start times of pending jobs to get pushed forward in time. On systems with
large numbers of running jobs, performance of the backfill scheduler will
suffer and fewer jobs will be evaluated.
-- Improve scheduling logic with respect to license use and node reboots.
-- CRAY - Alter algorithm to come up with the SLURM_ID_HASH.
-- Implement federated scheduling and federated status outputs.
-- The '-q' option to srun has changed from being the short form of
'--quit-on-interrupt' to '--qos'.
-- Change sched_min_interval default from 0 to 2 microseconds.
* Changes in Slurm 17.02.10
==========================
-- Fix updating of requested TRES memory.
-- Cray modulefile: avoid removing /usr/bin from path on module unload.
-- Fix issue when resetting the partition pointers on nodes.
-- Show reason field in 'sinfo -R' when nodes is marked as failed.
-- Fix potential of slurmstepd segfaulting when the extern step fails to start.
-- Allow nodes state to be updated between FAIL and DRAIN.
-- Avoid registering a job'd credential multiple times.
-- Fix sbatch --wait to stop waiting after job is gone from memory.
-- Fix memory leak of MailDomain configuration string when slurmctld daemon is
reconfigured.
-- Fix to properly remove extern steps from the starting_steps list.
-- Fix Slurm to work correctly with HDF5 1.10+.
-- Add support in salloc/srun --bb option for "access_mode" in addition to
"access" for consistency with DW options.
-- Fix potential deadlock in _run_prog() in power save code.
-- MYSQL - Add dynamic_offset in the database to force range for auto
increment ids for the tres_table.
-- Avoid setting node in COMPLETING state indefinitely if the job initiating
the node reboot is cancelled while the reboot in in progress.
-- node_feature/knl_cray - Fix memory leaks that occur when slurmctld
reconfigured.
-- node_feature/knl_cray - Fix memory leak that can occur during normal
operation.
-- Fix job array dependency with "aftercorr" option and some task arrays in
the first job fail. This fix lets all task array elements that can run
proceed rather than stopping all subsequent task array elements.
-- Fix whole node allocation cpu counts when --hint=nomultihtread.
* Changes in Slurm 17.02.9
==========================
-- When resuming powered down nodes, mark DOWN nodes right after ResumeTimeout
has been reached (previous logic would wait about one minute longer).
-- Fix sreport not showing full column name for TRES Count.
-- Fix slurmdb_reservations_get() giving wrong usage data when job's spanned
reservation that was modified.
-- Fix sreport reservation utilization report showing bad data.
-- Show all TRES' on a reservation in sreport reservation utilization report by
default.
-- Fix sacctmgr show reservation handling "end" parameter.
-- Work around issue with sysmacros.h and gcc7 / glibc 2.25.
-- Fix layouts code to only allow setting a boolean.
-- Fix sbatch --wait to keep waiting even if a message timeout occurs.
-- CRAY - If configured with NodeFeatures=knl_cray and there are non-KNL
nodes which include no features the slurmctld will abort without
this patch when attemping strtok_r(NULL).
-- Fix regression in 17.02.7 which would run the spank_task_privileged as
part of the slurmstepd instead of it's child process.
-- Fix security issue in Prolog and Epilog by always prepending SPANK_ to
all user-set environment variables. CVE-2017-15566.
* Changes in Slurm 17.02.8
==========================
-- Add 'slurmdbd:' to the accounting plugin to notify message is from dbd
instead of local.
-- mpi/mvapich - Buffer being only partially cleared. No failures observed.
-- Fix for job --switch option on dragonfly network.
-- In salloc with --uid option, drop supplementary groups before changing UID.
-- jobcomp/elasticsearch - strip any trailing slashes from JobCompLoc.
-- jobcomp/elasticsearch - fix memory leak when transferring generated buffer.
-- Prevent slurmstepd ABRT when parsing gres.conf CPUs.
-- Fix sbatch --signal to signal all MPI ranks in a step instead of just those
on node 0.
Danny Auble
committed
-- Check multiple partition limits when scheduling a job that were previously
only checked on submit.
-- Cray: Avoid running application/step Node Health Check on the external
job step.
-- Optimization enhancements for partition based job preemption.
-- Address some build warnings from GCC 7.1, and one possible memory leak if
/proc is inaccessible.
-- If creating/altering a core based reservation with scontrol/sview on a
remote cluster correctly determine the select type.
-- Fix autoconf test for libcurl when clang is used.
-- Fix default location for cgroup_allowed_devices_file.conf to use correct
default path.
-- Document NewName option to sacctmgr.
-- Reject a second PMI2_Init call within a single step to prevent slurmstepd
from hanging.
-- Handle old 32bit values stored in the database for requested memory
correctly in sacct.
-- Fix memory leaks in the task/cgroup plugin when constraining devices.
-- Make extremely verbose info messages debug2 messages in the task/cgroup
plugin when constraining devices.
-- Fix issue that would deny the stepd access to /dev/null where GRES has a
'type' but no file defined.
-- Fix issue where the slurmstepd would fatal on job launch if you have no
gres listed in your slurm.conf but some in gres.conf.
-- Fix validating time spec to correctly validate various time formats.
-- Make scontrol work correctly with job update timelimit [+|-]=.
-- Reduce the visibily of a number of warnings in _part_access_check.
-- Prevent segfault in sacctmgr if no association name is specified for
an update command.
-- burst_buffer/cray plugin modified to work with changes in Cray UP05
-- Fix job reasons for jobs that are violating assoc MaxTRESPerNode limits.
-- Fix segfault when unpacking a 16.05 slurm_cred in a 17.02 daemon.
-- Fix setting TRES limits with case insensitive TRES names.
-- Add alias for xstrncmp() -- slurm_xstrncmp().
-- Fix sorting of case insensitive strings when using xstrcasecmp().
-- Gracefully handle race condition when reading /proc as process exits.
-- Avoid error on Cray duplicate setup of core specialization.
-- Skip over undefined (hidden in Slurm) nodes in pbsnodes.
-- Add empty hashes in perl api's slurm_load_node() for hidden nodes.
-- CRAY - Add rpath logic to work for the alpscomm libs.
-- Fixes for administrator extended TimeLimit (job reason & time limit reset).
-- Fix gres selection on systems running select/linear.
-- sview: Added window decorator for maximize,minimize,close buttons for all
systems.
Dominik Bartkiewicz
committed
-- squeue: interpret negative length format specifiers as a request to
delimit values with spaces.
-- Fix the torque pbsnodes wrapper script to parse a gres field with a type
set correctly.
* Changes in Slurm 17.02.7
==========================
-- Fix deadlock if requesting to create more than 10000 reservations.
-- Fix potential memory leak when creating partition name.
-- Execute the HealthCheckProgram once when the slurmd daemon starts rather
than executing repeatedly until an exit code of 0 is returned.
Alejandro Sanchez
committed
-- Set job/step start and end times to 0 when using --truncate and start > end.
-- Make srun --pty option ignore EINTR allowing windows to resize.
-- When resuming node only send one message to the slurmdbd.
-- Modify srun --pty option to use configured SrunPortRange range.
-- Fix issue with whole gres not being printed out with Slurm tools.
-- Fix issue with multiple jobs from an array are prevented from starting.
-- Fix for possible slurmctld abort with use of salloc/sbatch/srun
--gres-flags=enforce-binding option.
-- Fix race condition when using jobacct_gather/cgroup where the memory of the
step wasn't always gathered correctly.
-- Better debug when slurmdbd queue is filling up in the slurmctld.
-- Fixed truncation on scontrol show config output.
-- Serialize updates from from the dbd to the slurmctld.
-- Fix memory leak in slurmctld when agent queue to the DBD has filled up.
-- CRAY - Throttle step creation if trying to create too many steps at once.
Danny Auble
committed
-- If failing after switch_g_job_init happened make sure switch_g_job_fini is
called.
-- Fix minor memory leak if launch fails in the slurmstepd.
-- Fix issue where UnkillableStepProgram if step was in an ending state.
-- Fix bug when tracking multiple simultaneous spawned ping cycles.
-- jobcomp/elasticsearch plugin now saves state of pending requests on
slurmctld daemon shutdown so then can be recovered on restart.
-- Fix issue when an alternate munge key when communicating on a persistent
connection.
-- Document inconsistent behavior of GroupUpdateForce option.
-- Fix bug in selection of GRES bound to specific CPUs where the GRES count
is 2 or more. Previous logic could allocate CPUs not available to the job.
-- Increase buffer to handle long /proc/<pid>/stat output so that Slurm can
read correct RSS value and take action on jobs using more memory than
requested.
-- Fix srun job jobs that can run immediately to run in the highest priority
partion when multiple partitions are listed. scontrol show jobs can
potentially show the partition list in priority order.
-- Fix starting controller if StateSaveLocation path didn't exist.
-- Fix inherited association 'max' TRES limits combining multiple limits in
the tree.
-- Sort TRES id's on limits when getting them from the database.
-- Fix issue with pmi[2|x] when TreeWidth=1.
-- Correct buffer size used in determining specialized cores to avoid possible
truncation of core specification and not reserving the specified cores.
-- Close race condition on Slurm structures when setting DebugFlags.
-- Make it so the cray/switch plugin grabs new DebugFlags on a reconfigure.
-- Fix incorrect lock levels when creating or updating a reservation.
-- Add logic to help support Dell KNL systems where syscfg is different than
the normal Intel syscfg.
-- CRAY - Fix BB to handle type= correctly, regression in 17.02.6.
* Changes in Slurm 17.02.6
==========================
-- Fix configurator.easy.html to output the SelectTypeParameters line.
-- If a job requests a specific memory requirement then gets something else
from the slurmctld make sure the step allocation is made aware of it.
-- Fix missing initialization in slurmd.
-- Fix potential degradation when running HTC (> 100 jobs a sec) like
workflows through the slurmd.
-- Fix race condition which could leave a stepd hung on shutdown.
-- CRAY - Add configuration for ATP to the ansible play script.
-- Fix potential to corrupt DBD message.
-- burst_buffer logic modified to support sizes in both SI and EIC size units
(e.g. M/MiB for powers of 1024, MB for powers of 1000).
* Changes in Slurm 17.02.5
==========================
-- Prevent segfault if a job was blocked from running by a QOS that is then
deleted.
-- Improve selection of jobs to preempt when there are multiple partitions
with jobs subject to preemption.
-- Only set kmem limit when ConstrainKmemSpace=yes is set in cgroup.conf.
-- Fix bug in task/affinity that could result in slurmd fatal error.
-- Increase number of jobs that are tracked in the slurmd as finishing at one
time.
-- Note when a job finishes in the slurmd to avoid a race when launching a
batch job takes longer than it takes to finish.
-- Improve slurmd startup on large systems (> 10000 nodes)
-- Add LaunchParameters option of cray_net_exclusive to control whether all
jobs on the cluster have exclusive access to their assigned nodes.
-- Make sure srun inside an allocation gets --ntasks-per-[core|socket]
set correctly.
-- Only make the extern step at job creation.
-- Fix for job step task layout with --cpus-per-task option.
-- Fix --ntasks-per-core option/environment variable parsing to set
the requested value, instead of always setting one (srun).
-- Correct error message when ClusterName in configuration files does not match
the name in the slurmctld daemon's state save file.
-- Better checking when a job is finishing to avoid underflow on job's
submitted to a QOS/association.
-- Handle partition QOS submit limits correctly when a job is submitted to
more than 1 partition or when the partition is changed with scontrol.
-- Performance boost for when Slurm is dealing with credentials.
-- Fix race condition which could leave a stepd hung on shutdown.
-- Add lua support for opensuse.
* Changes in Slurm 17.02.4
==========================
-- Do not attempt to schedule jobs after changing the power cap if there are
already many active threads.
-- Job expansion example in FAQ enhanced to demonstrate operation in
heterogeneous environments.
Alejandro Sanchez
committed
-- Prevent scontrol crash when operating on array and no-array jobs at once.
-- knl_cray plugin: Log incomplete capmc output for a node.
-- knl_cray plugin: Change capmc parsing of mcdram_pct from string to number.
-- When rebooting a node and using the PrologFlags=alloc make sure the
prolog is ran after the reboot.
-- node_features/knl_generic - If a node is rebooted for a pending job, but
fails to enter the desired NUMA and/or MCDRAM mode then drain the node and
requeue the job.
-- node_features/knl_generic disable mode change unless RebootProgram
configured.
-- Add new burst_buffer function bb_g_job_revoke_alloc() to be executed
if there was a failure after the initial resource allocation. Does not
release previously allocated resources.
-- Test if the node_bitmap on a job is NULL when testing if the job's nodes
are ready. This will be NULL is a job was revoked while beginning.
-- Fix incorrect lock levels when testing when job will run or updating a job.
-- Add missing locks to job_submit/pbs plugin when updating a jobs
dependencies.
-- Add min_memory_per_node|cpu to the job_submit/lua plugin to deal with lua
not being able to deal with pn_min_memory being a uint64_t. Scripts are
urged to change to these new variables avoid issue. If not set the
variables will be 'nil'.
-- Calculate priority correctly when 'nice' is given.
-- Fix minor typos in the documentation.
-- node_features/knl_cray: Preserve non-KNL active features if slurmctld
reconfigured while node boot in progress.
-- node_features/knl_generic: Do not repeatedly log errors when trying to read
KNL modes if not KNL system.
-- Add missing QOS read lock to backfill scheduler.
-- When doing a dlopen on liblua only attempt the version compiled against.
-- Fix null-dereference in sreport cluster ulitization when configured with
memory-leak-debug.
-- Fix Partition info in 'scontrol show node'. Previously duplicate partition
names, or Partitions the node did not belong to could be displayed.
-- Fix it so the backup slurmdbd will take control correctly.
Alejandro Sanchez
committed
-- Fix unsafe use of MAX() macro, which could result in problems cleaning up
Alejandro Sanchez
committed
accounting plugins in slurmd, or repeat job cancellation attempts in
scancel.
-- Fix 'scontrol update reservation duration=unlimited' to set the duration
to 365-days (as is done elsewhere), rather than 49710 days.
-- Check if variable given to scontrol show job is a valid jobid.
-- Fix WithSubAccounts option to not include WithDeleted unless requested.
Dominik Bartkiewicz
committed
-- Prevent a job tested on multiple partitions from being marked
WHOLE_NODE_USER.
Dominik Bartkiewicz
committed
-- Prevent a race between completing jobs on a user-exclusive node from
leaving the node owned.
-- When scheduling take the nodes in completing jobs out of the mix to reduce
fragmentation. SchedulerParameters=reduce_completing_frag
-- For jobs submited to multiple partitions, report the job's earliest start
time for any partition.
-- Backfill partitions that use QOS Grp limits to "float" better.
-- node_features/knl_cray: don't clear configured GRES from non-KNL node.
-- sacctmgr - prevent segfault in command when a request is denied due
to a insufficient priviledges.
-- Add warning about libcurl-devel not being installed during configure.
-- Streamline job purge by handling file deletion on a separate thread.
-- Always set RLIMIT_CORE to the maximum permitted for slurmd, to ensure
core files are created even on non-developer builds.
-- Fix --ntasks-per-core option/environment variable parsing to set
the requested value, instead of always setting one.
-- If trying to cancel a step that hasn't started yet for some reason return
a good return code.
-- Fix issue with sacctmgr show where user=''
* Changes in Slurm 17.02.3
==========================
-- Increase --cpu_bind and --mem_bind field length limits.
-- Fix segfault when using AdminComment field with job arrays.
-- Clear Dependency field when all dependencies are satisfied.
-- Add --array-unique to squeue which will display one unique pending job
array element per line.
-- Reset backfill timers correctly without skipping over them in certain
circumstances.
-- When running the "scontrol top" command, make sure that all of the user's
jobs have a priority that is lower than the selected job. Previous logic
would permit other jobs with equal priority (no jobs with higher priority).
-- Fix perl api so we always get an allocation when calling Slurm::new().
-- Fix issue with cleaning up cpuset and devices cgroups when multiple steps
end at the same time.
-- Document that PriorityFlags option of DEPTH_OBLIVIOUS precludes the use of
FAIR_TREE.
-- Fix issue if an invalid message came in a Slurm daemon/command may abort.
-- Make it impossible to use CR_CPU* along with CR_ONE_TASK_PER_CORE. The
options are mutually exclusive.
-- ALPS - Fix scheduling when ALPS doesn't agree with Slurm on what nodes
are free.
-- When removing a partition make sure it isn't part of a reservation.
-- Fix seg fault if loading attempting to load non-existent burstbuffer plugin.
-- Fix to backfill scheduling with respect to QOS and association limits. Jobs
submitted to multiple partitions are most likley to be effected.
-- sched/backfill: Improve assoc_limit_stop configuration parameter support.
-- sched/backfill: Fix bug related to advanced reservations and the need to
reboot nodes to change KNL mode.
-- Preempt plugins - fix check for 'preempt_youngest_first' option.
-- Preempt plugins - fix incorrect casts in preempt_youngest_first mode.
-- Preempt/job_prio - fix incorrect casts in sort function.
-- Fix to make task/affinity work with ldoms where there are more than 64
cpus on the node.
-- When using node_features/knl_generic make it so the slurmd doesn't segfault
when shutting down.
Tim Wickberg
committed
-- Fix potential double-xfree() when using job arrays that can lead to
slurmctld crashing.
-- Fix priority/multifactor priorities on a slurmctld restart if not using
accounting_storage/[mysql|slurmdbd].
-- Fix NULL dereference reported by CLANG.
-- Update proctrack documentation to strongly encourage use of
proctrack/cgroup.
-- Fix potential memory leak if job fails to begin after nodes have been
selected for a job.
-- Handle a job that made it out of the select plugin without a job_resrcs
pointer.
-- Fix potential race condition when persistent connections are being closed at
shutdown.
-- Fix incorrect locks levels when submitting a batch job or updating a job
in general.
-- CRAY - Move delay waiting for job cleanup to after we check once.
-- MYSQL - Fix memory leak when loading archived jobs into the database.
-- Fix potential race condition when starting the priority/multifactor plugin's
decay thread.
-- Sanity check to make sure we have started a job in acct_policy.c before we
clear it as started.
-- Allow reboot program to use arguments.
-- Message Aggr - Remove race condition on slurmd shutdown with respects to
destroying a mutex.
-- Fix updating job priority on multiple partitions to be correct.
-- Don't remove admin comment when updating a job.
Dominik Bartkiewicz
committed
-- Return error when bad separator is given for scontrol update job licenses.
* Changes in Slurm 17.02.2
==========================
-- Update hyperlink to LBNL Node Health Check program.
-- burst_buffer/cray - Add support for line continuation.
-- If a job is cancelled by the user while it's allocated nodes are being
reconfigured (i.e. the capmc_resume program is rebooting nodes for the job)
and the node reconfiguration fails (i.e. the reboot fails), then don't
requeue the job but leave it in a cancelled state.
-- capmc_resume (Cray resume node script) - Do not disable changing a node's
active features if SyscfgPath is configured in the knl.conf file.
-- Improve the srun documentation for the --resv-ports option.
-- burst_buffer/cray - Fix parsing for discontinuous allocated nodes. A job
allocation of "20,22" must be expressed as "20\n22".
-- Fix rare segfault when shutting down slurmctld and still sending data to
the database.
-- Fix gres output of a job if it is updated while pending to be displayed
correctly with Slurm tools.
-- Fix missing unlock when job_list doesn't exist when starting priority/
multifactor.
-- Fix segfault if slurmctld is shutting down and the slurmdbd plugin was
in the middle of setting db_indexes.
-- Add ESLURM_JOB_SETTING_DB_INX to errno to note when a job can't be updated
because the dbd is setting a db_index.
-- Fix possible double insertion into database when a job is updated at the
moment the dbd is assigning a db_index.
-- Fix memory error when updating a job's licenses.
Danny Auble
committed
-- Fix seff to work correctly with non-standard perl installs.
-- Export missing slurmdbd_defs_[init|fini] needed for libslurmdb.so to work.
-- Fix sacct from returning way more than requested when querying against a job
array task id.
-- Fix double read lock of tres when updating gres or licenses on a job.
-- Make sure locks are always in place when calling
assoc_mgr_make_tres_str_from_array.
-- Prevent slurmctld SEGV when creating reservation with duplicated name.
-- Consider QOS flags Partition[Min|Max]Nodes when doing backfill.
-- Fix slurmdbd_defs.c to not have half symbols go to libslurm.so and the
other half go to libslurmdb.so.
-- Fix 'scontrol show jobs' to remove an errant newline when 'Switches' is
printed.
-- Better code for handling memory required by a task on a heterogeneous
system.
-- Fix regression in 17.02.0 with respects to GrpTresMins on a QOS or
Association.
-- Schedule interactive jobs quicker.
-- Perl API - correct value of MEM_PER_CPU constant to correctly handle
memory values.
-- Fix 'flags' variable to be 32 bit from the old 16 bit value in the perl api.
-- Export sched_nodes for a job in the perl api.
-- Improve error output when updating a reservation that has already started.
-- Fix --ntasks-per-node issue with srun so DenyOnLimit would work correctly.
-- node_features/knl_cray plugin - Fix memory leak.
Dominik Bartkiewicz
committed
-- Fix wrong cpu_per_task count issue on heterogeneous system when dealing with
steps.
-- Fix double free issue when removing usage from an association with sacctmgr.
-- Fix issue with SPANK plugins attempting to set null values as environment
variables, which leads to the command segfaulting on newer glibc versions.
-- Fix race condition on slurmctld startup when plugins have not gone through
init() ahead of the rpc_manager processing incoming messages.
-- job_submit/lua - expose admin_comment field.
-- Allow AdminComment field to be set by the job_submit plugin.
-- Allow AdminComment field to be changed by any Administrator.
Alejandro Sanchez
committed
-- MYSQL - Streamline job flush sql when doing a clean start on the slurmctld.
-- Fix potential infinite loop when talking to the DBD when shutting down
the slurmctld.
-- Fix MCS filter.
-- Make it so pmix can be included in the plugin rpm without having to
specify --with-pmix.
-- MYSQL - Fix initial load when not using he DBD.
-- Fix scontrol top to not make jobs priority 0 (held).
-- Downgrade info message about exceeding partition time limit to a debug2.
* Changes in Slurm 17.02.1-2
============================
-- Replace clock_gettime with time(NULL) for very old systems without the call.
* Changes in Slurm 17.02.1
==========================
-- Modify pam module to work when configured NodeName and NodeHostname differ.
-- Update to sbatch/srun man pages to explain the "filename pattern" clearer
-- Add %x to sbatch/srun filename pattern to represent the job name.
-- job_submit/lua - Add job "bitflags" field.
-- Update slurm.spec file to note obsolete RPMs.
-- Fix deadlock scenario when dumping configuration in the slurmctld.
-- Remove unneeded job lock when running assoc_mgr cache. This lock could
cause potential deadlock when/if TRES changed in the database and the
slurmctld wasn't made aware of the change. This would be very rare.
-- Fix missing locks in gres logic to avoid potential memory race.
Dominik Bartkiewicz
committed
-- If gres is NULL on a job don't try to process it when returning detailed
information about a job to scontrol.
-- Fix print of consumed energy in sstat when no energy is being collected.
-- Print formatted tres string when creating/updating a reservation.
-- Fix issues with QOS flags Partition[Min|Max]Nodes to work correctly.
-- Prevent manipulation of the cpu frequency and governor for batch or
extern steps. This addresses an issue where the batch step would
inadvertently set the cpu frequency maximum to the minimum value
supported on the node.
-- Convert a slurmctd power management data structure from array to list in
order to eliminate the possibility of zombie child suspend/resume
processes.
-- Burst_buffer/cray - Prevent slurmctld daemon abort if "paths" operation
fails. Now job will be held. Update job update time when held.
-- Fix issues with QOS flags Partition[Min|Max]Nodes to work correctly.
-- Refactor slurmctld agent logic to eliminate some pthreads.
-- Added "SyscfgTimeout" parameter to knl.conf configuration file.
-- Fix for CPU binding for job steps run under a batch job.
* Changes in Slurm 17.02.0
==========================
-- job_submit/lua - Make "immediate" parameter available.
-- Fix srun I/O race condtion to eliminate a error message that might be
generated if the application exits with outstanding stdin.
-- Fix regression when purging/archiving jobs/events.
-- Add new job state JOB_OOM indicating Out Of Memory condition as detected
by task/cgroup plugin.
-- If QOS has been added to the system go refigure out Deny/AllowQOS on
partitions.
-- Deny job with duplicate GRES requested.
-- Fix loading super old assoc_mgr usage without segfaulting.
-- CRAY systems: Restore TaskPlugins order of task/cray before task/cgroup.
-- Task/cray: Treat missing "mems" cgroup with "debug" messages rather than
"error" messages. The file may be missing at step termination due to a
change in how cgroups are released at job/step end.
-- Fix for job constraint specification with counts, --ntasks-per-node value,
and no node count.
-- Fix ordering of step task allocation to fill in a socket before going into
another one.
-- Fix configure to not require C++
Tim Wickberg
committed
-- job_submit/lua - Remove access to slurmctld internal reservation fields of
job_pend_cnt and job_run_cnt.
-- Prevent job_time_limit enforcement from blocking other internal operations
if a large number of jobs need to be cancelled.
-- Add 'preempt_youngest_order' option to preempt/partition_prio plugin.
-- Fix controller being able to talk to a pre-released DBD.
-- Added ability to override the invoking uid for "scontrol update job"
by specifying "--uid=<uid>|-u <uid>".
-- Changed file broadcast "offset" from 32 to 64 bits in order to support files
over 2 GB.
-- slurm.spec - do not install init scripts alongside systemd service files.
Alejandro Sanchez
committed
-- Add port info to 'sinfo' and 'scontrol show node'.
-- Fix errant definition of USE_64BIT_BITSTR which can lead to core dumps.
-- Move BatchScript to end of each job's information when using
"scontrol -dd show job" to make it more readable.
-- Add SchedulerParameters configuration parameter of "default_gbytes", which
treats numeric only (no suffix) value for memory and tmp disk space as being
in units of Gigabytes. Mostly for compatability with LSF.
-- Fix race condtion in srun/sattach logic which would prevent srun from
terminating.
-- Bitstring operations are now 64bit instead of 32bit.
-- Replace hweight() function in bitstring with faster version.
-- scancel would treat a non-numeric argument as the name of jobs to be
cancelled (a non-documented feature). Cancelling jobs by name now require
the "--jobname=" command line argument.
-- scancel modified to note that no jobs satisfy the filter options when the
--verbose option is used along with one or more job filters (e.g. "--qos=").
-- Change _pack_cred to use pack_bit_str_hex instead of pack_bit_fmt for
better scalability and performance.
-- Add BootTime configuration parameter to knl.conf file to optimize resource
allocations with respect to required node reboots.
-- Add node_features_p_boot_time() to node_features plugin to optimize
scheduling with respect to node reboots.
-- Avoid allocating resources to a job in the event that its run time plus boot
time (if needed) extent into an advanced reservation.
-- Burst_buffer/cray - Avoid stage-out operation if job never started.
-- node_features/knl_cray - Add capability to detected Uncorrectable Memory
Errors (UME) and if detected then log the event in all job and step stderr
with a message of the form:
error: *** STEP 1.2 ON tux1 UNCORRECTABLE MEMORY ERROR AT 2016-12-14T09:09:37 ***
Similar logic added to node_features/knl_generic in version 17.02.0pre4.
-- If job is allocated nodes which are powered down, then reset job start time
when the nodes are ready and do not charge the job for power up time.
-- Add the ability to purge transactions from the database.
-- Add support for requeue'ing of federated jobs (BETA).
-- Add support for interactive federated jobs (BETA).
-- Add the ability to purge rolled up usage from the database.
-- Properly set SLURM_JOB_GPUS environment variable for Prolog.
* Changes in Slurm 17.02.0pre4
==============================
-- Add support for per-partitiion OverTimeLimit configuration.
-- Add --mem_bind option of "sort" to run zonesort on KNL nodes at step start.
-- Add LaunchParameters=mem_sort option to configure running of zonesort
-- Add "FreeSpace" information for each pool to the "scontrol show burstbuffer"
output. Required changes to the burst_buffer_info_t data structure.
-- Add new node state flag of NODE_STATE_REBOOT for node reboots triggered by
"scontrol reboot" commands. Previous logic re-used NODE_STATE_MAINT flag,
which could lead to inconsistencies. Add "ASAP" option to "scontrol reboot"
command that will drain a node in order to reboot it as soon as possible,
then return it to service.
-- Allow unit conversion routine to convert 1024M to 1G.
-- switch/cray plugin - change legacy spool directory location.
-- Add new PriorityFlags option of INCR_ONLY, which prevents a job's priority
from being decremented.
-- Make it so we don't purge job start messages until after we purge step
messages. Hopefully this will reduce the number of messages lost when
filling up memory when the database/DBD is down.
-- Added SchedulingParameters option of "bf_job_part_count_reserve". Jobs below
the specified threshold will not have resources reserved for them.
-- If GRES are configured with file IDs, then "scontrol -d show node" will
not only identify the count of currently allocated GRES, but their specific
index numbers (e.g. "GresUsed=gpu:alpha:2(IDX:0,2),gpu:beta:0(IDX:N/A)").
Ditto for job information with "scontrol -d show job".
-- Add "GresEnforceBind=Yes" to "scontrol show job" output if so configured.
-- Add support for SALLOC_CONSTRAINT, SBATCH_CONSTRAINT and SLURM_CONSTRAINT
environment variables to set default constraints for salloc, sbatch and
srun commands respectively.
-- Provide limited support for the MemSpecLimit configuration parameter without
the task/cgroup plugin.
-- node_features/knl_generic - Add capability to detected Uncorrectable Memory
Errors (UME) and if detected then log the event in all job and step stderr
with a message of the form:
error: *** STEP 1.2 ON tux1 UNCORRECTABLE MEMORY ERROR AT 2016-12-14T09:09:37 ***
-- Add SLURM_JOB_GID to TaskProlog environment.
-- burst_buffer/cray - Remove leading zeros from node ID lists passed to
dw_wlm_cli program.
-- Add "Partitions" field to "scontrol show node" output.
-- Remove sched/wiki and sched/wiki2 plugins and associated code.
-- Remove SchedulerRootFilter option and slurm_get_root_filter() API call.
-- Add SchedulerParameters option of spec_cores_first to select specialized
cores from the lowest rather than highest number cores and sockets.
-- Add PrologFlags option of Serial to disable concurrent launch of
Prolog and Epilog scripts.
-- Fix security issue caused by insecure file path handling triggered by the
failure of a Prolog script. To exploit this a user needs to anticipate or
cause the Prolog to fail for their job. CVE-2016-10030.
* Changes in Slurm 17.02.0pre3
==============================
-- Add srun host & PID to job step data structures.
-- Avoid creating duplicate pending step records for the same srun command.
-- Rewrite srun's logic for pending steps for better efficiency (fewer RPCs).
-- Added new SchedulerParameters options step_retry_count and step_retry_time
to control scheduling behaviour of job steps waiting for resources.
-- Optimize resource allocation logic for --spread-job job option.
-- Modify cpu_bind and mem_bind map and mask options to accept a repetition
count to better support large task count. For example:
"mask_mem:0x0f*2,0xf0*2" is equivalent to "mask_mem:0x0f,0x0f,0xf0,0xf0".
-- Add support for --mem_bind=prefer option to prefer, but not restrict memory
-- Add mechanism to constrain kernel memory allocation using cgroups. New
cgroup.conf parameters added: ConstrainKmemSpace, MaxKmemPercent, and
MinKmemSpace.
-- Correct invokation of man2html, which previously could cause FreeBSD builds
to hang.
-- MYSQL - Unconditionally remove 'ignore' clause from 'alter ignore'.
-- Modify service files to not start Slurm daemons until after Munge has been
started.
NOTE: If you are not using Munge, but are using the "service" scripts to
start Slurm daemons, then you will need to remove this check from the
etc/slurm*service scripts.
-- Do not process SALLOC_HINT, SBATCH_HINT or SLURM_HINT environment variables
if any of the following salloc, sbatch or srun command line options are
specified: -B, --cpu_bind, --hint, --ntasks-per-core, or --threads-per-core.
-- burst_buffer/cray: Accept new jobs on backup slurmctld daemon without access
to dw_wlm_cli command. No burst buffer actions will take place.
-- Do not include SLURM_JOB_DERIVED_EC, SLURM_JOB_EXIT_CODE, or
SLURM_JOB_EXIT_CODE in PrologSlurmctld environment (not available yet).
-- Cray - set task plugin to fatal() if task/cgroup is not loaded after
task/cray in the TaskPlugin settings.
-- Remove separate slurm_blcr package. If Slurm is built with BLCR support,
the files will now be part of the main Slurm packages.
-- Replace sjstat, seff and sjobexit RPM packages with a single "contribs"
package.
-- Remove long since defunct slurmdb-direct scripts.
-- Add SbcastParameters configuration option to control default file
destination directory and compression algorithm.
-- Add new SchedulerParameter (max_array_tasks) to limit the maximum number of
tasks in a job array independently from the maximum task ID (MaxArraySize).
Alejandro Sanchez
committed
-- Fix issue where number of nodes is not properly allocated when sbatch and
salloc are requested with -n tasks < hosts from -w hostlist or from -N.
* Changes in Slurm 17.02.0pre2
==============================
-- Add new RPC (REQUEST_EVENT_LOG) so that slurmd and slurmstepd can log events
through the slurmctld daemon.
-- Remove sbatch --bb option. That option was never supported.
-- Automatically clean up task/cgroup cpuset and devices cgroups after steps
are completed.
-- Add federation read/write locks.
-- Limit job purge run time to 1 second at a time.
-- The database index for jobs is now 64 bits. If you happen to be close to
4 billion jobs in your database you will want to update your slurmctld at
the same time as your slurmdbd to prevent roll over of this variable as
it is 32 bit previous versions of Slurm.
-- Optionally lock slurmstepd in memory for performance reasons and to avoid
possible SIGBUS if the daemon is paged out at the time of a Slurm upgrade
(changing plugins). Controlled via new LaunchParameters options of
slurmstepd_memlock and slurmstepd_memlock_all.
-- Add event trigger on burst buffer errors (see strigger man page,
--burst_buffer option).
-- Add job AdminComment field which can only be set by a Slurm administrator.
-- Add salloc, sbatch and srun option of --delay-boot=<time>, which will
temporarily delay booting nodes into the desired state for a job in the
hope of using nodes already in the proper state which will be available at
a later time.
-- Add job burst_buffer_state and delay_boot fields to scontrol and squeue
output. Also add ability to modify delay_boot from scontrol.
-- Fix for node's available TRES array getting filled in with configured GRES
-- Log if job --bb option contains any unrecognized content.
-- Display configured and allocated TRES for nodes in scontrol show nodes.
-- Change all memory values (in MB) to uint64_t to accommodate > 2TB per node.
-- Add MailDomain configuration parameter to qualify email addresses.
-- Refactor the persistent connections within the federation code to use
the same logic that was found in the slurmdbd. Now both functionalities
share the same code.
-- Remove BlueGene/L and BlueGene/P support.
-- Add "flag" field to launch_tasks_request_msg. Remove the following fields
(moved into flags): multi_prog, task_flags, user_managed_io, pty,
buffered_stdio, and labelio.
-- Add protocol version to slurmd startup communications for slurmstepd to
permit changes in the protocol.
* Changes in Slurm 17.02.0pre1
==============================
-- burst_buffer/cray - Add support for rounding up the size of a buffer reqeust
if the DataWarp configuration "equalize_fragments" is used.
-- Rename "in" to "input" in slurm_step_io_fds data structure defined in
slurm.h. This is needed to avoid breaking Python with by using one of its
keywords in a Slurm data structure.
-- Remove eligible_time from jobcomp/elasticsearch.
-- Enable the deletion of a QOS, even if no clusters have been added to the
database.
-- SlurmDBD - change all timestamps to bigint from int to solve Y2038 problem.
-- Add salloc/sbatch/srun --spread-job option to distribute tasks over as many
nodes as possible. This also treats the --ntasks-per-node option as a
maximum value.
-- Add ConstrainKmemSpace to cgroup.conf, defaulting to yes, to allow
cgroup Kmem enforcement to be disabled while still using ConstrainRAMSpace.
-- Add support for sbatch --bbf option to specify a burst buffer input file.
-- Added burst buffer support for job arrays. Add new SchedulerParameters
configuration parameter of bb_array_stage_cnt=# to indicate how many pending
tasks of a job array should be made available for burst buffer resource
allocation.
-- Fix small memory leak when a job fails to load from state save.
-- Fix invalid read when attempting to delete clusters from database with
running jobs.
-- Fix small memory leak when deleting clusters from database.
-- Add SLURM_ARRAY_TASK_COUNT environment variable. Total number of tasks in a
job array (e.g. "--array=2,4,8" will set SLURM_ARRAY_TASK_COUNT=3).
-- Add new sacctmgr commands: "shutdown" (shutdown the server), "list stats"
(get server statistics) "clear stats" (clear server statistics).
Tim Wickberg
committed
-- Restructure job accounting query to use 'id_job in (1, 2, .. )' format
instead of logically equivalent 'id_job = 1 || id_job = 2 || ..' .
-- Added start_delay field to jobcomp/elasticsearch.
-- In order to support federated jobs, the MaxJobID configuration parameter
default value has been reduced from 2,147,418,112 to 67,043,328 and its
maximum value is now 67,108,863. Upon upgrading, any pre-existing jobs that
have a job ID above the new range will continue to run and new jobs will get
job IDs in the new range.
-- Added infrastructure for setting up federations in database and establishing
connections between federation clusters.
* Changes in Slurm 16.05.12
===========================
* Changes in Slurm 16.05.11
===========================
-- burst_buffer/cray - Add support for line continuation.
-- If a job is cancelled by the user while it's allocated nodes are being
reconfigured (i.e. the capmc_resume program is rebooting nodes for the job)
and the node reconfiguration fails (i.e. the reboot fails), then don't
requeue the job but leave it in a cancelled state.
-- capmc_resume (Cray resume node script) - Do not disable changing a node's
active features if SyscfgPath is configured in the knl.conf file.
-- Fix memory error when updating a job's licenses.
-- Fix double read lock of tres when updating gres or licenses on a job.
-- Fix regression in 16.05.10 with respects to GrpTresMins on a QOS or
Association.
-- ALPS - Fix scheduling when ALPS doesn't agree with Slurm on what nodes
are free.
-- Fix seg fault if loading attempting to load non-existent burstbuffer plugin.
-- Fix to backfill scheduling with respect to QOS and association limits. Jobs
submitted to multiple partitions are most likley to be effected.
-- Avoid erroneous errno set by the mariadb 10.2 api.
-- Fix security issue in Prolog and Epilog by always prepending SPANK_ to
all user-set environment variables. CVE-2017-15566.
* Changes in Slurm 16.05.10-2
=============================
-- Replace clock_gettime with time(NULL) for very old systems without the call.
* Changes in Slurm 16.05.10
===========================
Alejandro Sanchez
committed
-- Record job state as PREEMPTED instead of TIMEOUT when GraceTime is reached.
Dominik Bartkiewicz
committed
-- task/cgroup - print warnings to stderr when --cpu_bind=verbose is enabled
and the requested processor affinity cannot be set.
-- power/cray - Disable power cap get and set operations on DOWN nodes.
-- Jobs preempted with PreemptMode=REQUEUE were incorrectly recorded as
REQUEUED in the accounting.
-- PMIX - Use volatile specifier to avoid flag caching and lock the flag to
make sure it is protected.
-- PMIX/PMI2 - Make it possible to use %n or %h in a spool dir.
-- burst_buffer/cray - Support default pool which is not the first pool
reported by DataWarp and log in Slurm when pools that are added or removed
from DataWarp.
-- Insure job does not start running before PrologSlurmctld is complete and
node is booted (all nodes for interactive job, at least first node for batch
job without burst buffers).
-- Fix minor memory leak in the slurmctld when removing a QOS.
-- burst_buffer/cray - Do not execute "pre_run" operation until after all nodes
are booted and ready for use.
Dominik Bartkiewicz
committed
-- scontrol - return an error when attempting to use the +=/-+ syntax to
update a field where this is not appropriate.
-- Fix task/affinity to work correctly with --ntasks-per-socket.
-- Honor --ntasks-per-node and --ntasks option when used with job constraints
that contain node counts.
-- Prevent deadlocked slurmstepd processes due to unsafe use of regcomp with
older glibc versions.
-- Fix squeue when SLURM_BITSTR_LEN=0 is set in the user environment.
-- Fix comments in acct_policy.c to reflect actual variables instead of
old ones.
-- Fix correct variables when validating GrpTresMins on a QOS.
-- Better debug output when a job is being held because of a GrpTRES[Run]Min
limits.
-- Fix correct state reason when job can't run 'safely' because of an
association GrpWall limit.
-- Squeue always loads new data if user_id option specified
-- Fix for possible job ID parsing failure and abort.
-- If node boot in progress when slurmctld daemon is restarted, then allow
sufficient time for reboot to complete and not prematurely DOWN the node as
"Not responding".
-- For job resize, correct logic to build "resize" script with new values.
Previously the scripts were based upon the original job size.
-- Fix squeue to not limit the size of partition, burst_buffer, exec_host, or
reason to 32 chars.
-- Fix potential packing error when packing a NULL slurmdb_clus_res_rec_t.
-- Fix potential packing errors when packing a NULL slurmdb_reservation_cond_t.
-- Burst_buffer/cray - Prevent slurmctld daemon abort if "paths" operation
fails. Now job will be held. Update job update time when held.
-- Fix issues with QOS flags Partition[Min|Max]Nodes to work correctly.
-- Increase number of ResumePrograms that can be managed without leaving
zombie/orphan processes from 10 to 100.
-- Refactor slurmctld agent logic to eliminate some pthreads.
* Changes in Slurm 16.05.9
==========================
-- Fix parsing of SBCAST_COMPRESS environment variable in sbcast.
-- Change some debug messages to errors in task/cgroup plugin.
-- backfill scheduler: Stop trying to determine expected start time for a job
after 2 seconds of wall time. This can happen if there are many running jobs
and a pending job can not be started soon.
-- Improve performance of cr_sort_part_rows() in cons_res plugin.
-- CRAY - Fix dealock issue when updating accounting in the slurmctld and
scheduling a Datawarp job.
-- Correct the job state accounting information for jobs requeued due to burst
buffer errors.
-- burst_buffer/cray - Avoid "pre_run" operation if not using buffer (i.e.
just creating or deleting a persistent burst buffer).
-- Fix slurm.spec file support for BlueGene builds.
-- Fix missing TRES read lock in acct_policy_job_runnable_pre_select() code.
Josh Samuelson
committed
-- Fix debug2 message printing value using wrong array index in
_qos_job_runnable_post_select().
-- Prevent job timeout on node power up.
-- MYSQL - Fix minor memory leak when querying steps and the sql fails.
-- Make it so sacctmgr accepts column headers like MaxTRESPU and not MaxTRESP.
-- Only look at SLURM_STEP_KILLED_MSG_NODE_ID on startup, to avoid race
condition later when looking at a steps env.
-- Make backfill scheduler behave like regular scheduler in respect to
'assoc_limit_stop'.
-- Allow a lower version client command to talk to a higher version contoller
using the multi-cluster options (e.g. squeue -M<clsuter>).
-- slurmctld/agent race condition fix: Prevent job launch while PrologSlurmctld
daemon is running or node boot in progress.
-- MYSQL - Fix a few other minor memory leaks when uncommon failures occur.
-- burst_buffer/cray - Fix race condition that could cause multiple batch job
launch requests resulting in drained nodes.
-- Correct logic to purge old reservations.
-- Fix DBD cache restore from previous versions.
-- Fix to logic for getting expected start time of existing job ID with
explicit begin time that is in the past.
-- Clear job's reason of "BeginTime" in a more timely fashion and/or prevents
them from being stuck in a PENDING state.
Alejandro Sanchez
committed
-- Make sure acct policy limits imposed on a job are correct after requeue.
* Changes in Slurm 16.05.8
==========================
-- Remove StoragePass from being printed out in the slurmdbd log at debug2
level.
-- Defer PATH search for task program until launch in slurmstepd.
-- Modify regression test1.89 to avoid leaving vestigial job. Also reduce
logging to reduce likelyhood of Expect buffer overflow.
-- Do not PATH search for mult-prog launches if LaunchParamters=test_exec is
enabled.
-- Fix for possible infinite loop in select/cons_res plugin when trying to
satisfy a job's ntasks_per_core or socket specification.
-- If job is held for bad constraints make it so once updated the job doesn't
go into JobAdminHeld.
-- sched/backfill - Fix logic to reserve resources for jobs that require a
node reboot (i.e. to change KNL mode) in order to start.
-- When unpacking a node or front_end record from state and the protocol
version is lower than the min version, set it to the min.
-- Remove redundant lookup for part_ptr when updating a reservation's nodes.
-- Fix memory and file descriptor leaks in slurmd daemon's sbcast logic.
-- Do not allocate specialized cores to jobs using the --exclusive option.
-- Cancel interactive job if Prolog failure with "PrologFlags=contain" or
"PrologFlags=alloc" configured. Send new error prolog failure message to
the salloc or srun command as needed.
-- Prevent possible out-of-bounds read in slurmstepd on an invalid #! line.
Dominik Bartkiewicz
committed
-- Fix check for PluginDir within slurmctld to work with multiple directories.
-- Cancel interactive jobs automatically on communication error to launching
srun/salloc process.
-- Fix security issue caused by insecure file path handling triggered by the
failure of a Prolog script. To exploit this a user needs to anticipate or
cause the Prolog to fail for their job. CVE-2016-10030.
* Changes in Slurm 16.05.7
==========================
-- Fix issue in the priority/multifactor plugin where on a slurmctld restart,
where more time is accounted for than should be allowed.
-- cray/busrt_buffer - If total_space in a pool decreases, reset used_space
rather than trying to account for buffer allocations in progress.
-- cray/busrt_buffer - Fix for double counting of used_space at slurmctld
startup.
-- Fix regression in 16.05.6 where if you request multiple cpus per task (-c2)
and request --ntasks-per-core=1 and only 1 task on the node
the slurmd would abort on an infinite loop fatal.
-- cray/busrt_buffer - Internally track both allocated and unusable space.
The reported UsedSpace in a pool is now the allocated space (previously was
unusable space). Base available space on whichever value leaves least free
space.
-- cray/burst_buffer - Preserve job ID and don't translate to job array ID.
-- cray/burst_buffer - Update "instance" parsing to match updated dw_wlm_cli
output.
-- sched/backfill - Insure we don't try to start a job that was already started
and requeued by the main scheduling logic.
-- job_submit/lua - add access to the job features field in job_record.
-- select/linear plugin modified to better support heterogeneous clusters when
topology/none is also configured.
-- Permit cancellation of jobs in configuring state.
-- acct_gather_energy/rapl - prevent segfault in slurmd from race to gather
data at slurmd startup.
-- Integrate node_feature/knl_generic with "hbm" GRES information.
-- Fix output routines to prevent rounding the TRES values for memory or BB.
-- switch/cray plugin - fix use after free error.
-- docs - elaborate on how way to clear TRES limits in sacctmgr.
-- knl_cray plugin - Avoid abort from backup slurmctld at start time.
-- cgroup plugins - fix two minor memory leaks.
-- If a node is booting for some job, don't allocate additional jobs to the
node until the boot completes.
-- testsuite - fix job id output in test17.39.
-- Modify backfill algorithm to improve performance with large numbers of
running jobs. Group running jobs that end in a "similar" time frame using a
time window that grows exponentially rather than linearly. After one second
of wall time, simulate the termination of all remaining running jobs in
order to respond in a reasonable time frame.
-- Fix slurm_job_cpus_allocated_str_on_node_id() API call.
-- sched/backfill plugin: Make malloc match data type (defined as uint32_t and
allocated as int).
Dominik Bartkiewicz
committed
-- srun - prevent segfault when terminating job step before step has launched.
Dominik Bartkiewicz
committed
-- sacctmgr - prevent segfault when trying to reset usage for an invalid
account name.
-- Make the openssl crypto plugin compile with openssl >= 1.1.
-- Fix SuspendExcNodes and SuspendExcParts on slurmctld reconfiguration.
-- sbcast - prevent segfault in slurmd due to race condition between file
transfers from separate jobs using zlib compression
-- cray/burst_buffer - Increase time to synchronize operations between threads
from 5 to 60 seconds ("setup" operation time observed over 17 seconds).
-- node_features/knl_cray - Fix possible race condition when changing node
state that could result in old KNL mode as an active features.
Dominik Bartkiewicz
committed
-- Make sure if a job can't run because of resources we also check accounting
limits after the node selection to make sure it doesn't violate those limits
and if it does change the reason for waiting so we don't reserve resources
on jobs violating accounting limits.
-- NRT - Make it so a system running against IBM's PE will work with PE
version 1.3.
-- NRT - Make it so protocols pgas and test are allowed to be used.
-- NRT - Make it so you can have more than 1 protocol listed in MP_MSG_API.
-- cray/burst_buffer - If slurmctld daemon restarts with pending job and burst
buffer having unknown file stage-in status, teardown the buffer, defer the
job, and start stage-in over again.
-- On state restore in the slurmctld don't overwrite the mem_spec_limit given
from the slurm.conf when using FastSchedule=0.
-- Recognize a KNL's proper NUMA count (rather than setting it to the value
in slurm.conf) when using FastSchedule=0.
-- Fix parsing in regression test1.92 for some prompts.
-- sbcast - use slurmd's gid cache rather than a separate lookup.
-- slurmd - return error if setgroups() call fails in _drop_privileges().
-- Remove error messages about gres counts changing when a job is resized on
a slurmctld restart or reconfig, as they aren't really error messages.
-- Fix possible memory corruption if a job is using GRES and changing size.
-- jobcomp/elasticsearch - fix printf format for a value on 32-bit builds.
-- task/cgroup - Change error message if CPU binding can not take place to
better identify the root cause of the problem.
-- Fix issue where task/cgroup would not always honor --cpu_bind=threads.
-- Fix race condition in with getgrouplist() in slurmd that can lead to
user accounts being granted access to incorrect group memberships during
job launch.
* Changes in Slurm 16.05.6
==========================
-- Docs - the correct default value for GroupUpdateForce is 0.
-- mpi/pmix - improve point to point communication performance.
-- SlurmDB - include pending jobs in search during 'sacctmgr show runawayjobs'.
-- Add client side out-of-range checks to --nice flag.
-- Fix support for sbatch "-W" option, previously eeded to use "--wait".
-- node_features/knl_cray plugin and capmc_suspend/resume programs modified to
sleep and retry capmc operations if the Cray State Manager is down. Added
CapmcRetries configuration parameter to knl_cray.conf.
-- node_features/knl_cray plugin: Remove any KNL MCDRAM or NUMA features from
node's configuration if capmc does NOT report the node as being KNL.
-- node_features/knl_cray plugin: drain any node not reported by
"capmc node_status" on startup or reconfig.
-- node_features/knl_cray plugin: Substantially streamline and speed up logic
to load current node state on reconfigure failure or unexpected node boot.
-- node_features/knl_cray plugin: Add separate thread to interact with capmc
in response to unexpected node reboots.
-- node_features plugin - Add "mode" argument to node_features_p_node_xlate()
function to fix some bugs updating a node's features using the node update
RPC.
-- node_features/knl_cray plugin: If the reconfiguration of nodes for an
interactive job fails, kill the job (it can't be requeued like a batch job).
-- Testsuite - Added srun/salloc/sbatch tests with --use-min-nodes option.
-- Fix typo when an error occurs when discovering pmix version on
configure.
-- Fix configuring pmix support when you have your lib dir symlinked to lib64.
-- Fix waiting reason if a job is waiting for a specific limit instead of
always just AccountingPolicy.
-- Correct SchedulerParameters=bf_busy_nodes logic with respect to the job's
minimum node count. Previous logic would not decremement counter in some
locations and reject valid job request for not reaching minimum node count.
-- Fix FreeBSD-11 build by using llabs() function in place of abs().
-- Cray: The slurmd can manipulate the socket/core/thread values reported based
upon the configuration. The logic failed to consider select/cray with
SelectTypeParameters=other_cons_res as equivalent to select/cons_res.
-- If a node's socket or core count are changed at registration time (e.g. a
KNL node's NUMA mode is changed), change it's board count to match.
-- Prevent possible divide by zero in select/cons_res if a node's board count
is higher than it's socket count.
-- Allow an advanced reservation to contain a license count of zero.
-- Preserve non-KNL node features when updating the KNL node features for a
multi-node job in which the non-KNL node features vary by node.
-- task/affinity plugin: Honor a job's --ntasks-per-socket and
--ntasks-per-core options in task binding.
-- slurmd - do not print ClusterName when using 'slurmd -C'.
-- Correct a bitmap test function (used only by the select/bluegene plugin).
-- Do not propagate SLURM_UMASK environment variable to batch script.
-- Added node_features/knl_generic plugin for KNL support on non-Cray systems.
-- Cray: Prevent abort in backfill scheduling logic for requeued job that has
been cancelled while NHC is running.
-- Improve reported estimates of start and end times for pending jobs.
-- pbsnodes: Show OS value as "unknown" for down nodes.
-- BlueGene - correctly scale node counts when enforcing MaxNodes limit take 2.
-- Fix "sbatch --hold" to set JobHeldUser correctly instead of JobHeldAdmin.
-- Cray - print warning that task/cgroup is required, and must be after
task/cray in the TaskPlugin settings.
-- Document that node Weight takes precedence over load with LLN scheduling.
Dominik Bartkiewicz
committed
-- Fix issue where gang scheduling could happen even with OverSubscribe=NO.
-- Expose JOB_SHARED_* values to job_submit/lua plugin.
-- Fix issue where number of nodes is not properly allocated when srun is
requested with -n tasks < hosts from -w hostlist.
-- Update srun documentation for -N, -w and -m arbitrary.
-- Fix bug that was clearing MAINT mode on nodes scheduled for reboot (bug
introduced in version 16.05.5 to address bug in overlapping reservations).
-- Add logging of node reboot requests.
-- Docs - remove recommendation for ReleaseAgent setting in cgroup.conf.
-- Make sure a job cleans up completely if it has a node fail. Mostly an
issue with gang scheduling.
* Changes in Slurm 16.05.5
==========================
-- Fix accounting for jobs requeued after the previous job was finished.
-- slurmstepd modified to pre-load all relevant plugins at startup to avoid
the possibility of modified plugins later resulting in inconsistent API
or data structures and a failure of slurmstepd.
-- Export functions from parse_time.c in libslurm.so.
-- Export unit convert functions from slurm_protocol_api.c in libslurm.so.
-- Fix scancel to allow multiple steps from a job to be cancelled at once.
-- Update and expand upgrade guide (in Quick Start Administrator web page).
-- burst_buffer/cray: Requeue, but do not hold a job which fails the pre_run
operation.
-- Insure reported expected job start time is not in the past for pending jobs.
-- Add support for PMIx v2.
-- mpi/pmix: support for passing TMPDIR path through info key
-- Cray: update slurmconfgen_smw.py script to correctly identify service nodes
versus compute nodes.
-- FreeBSD - fix build issue in knl_cray plugin.
-- Corrections to gres.conf parsing logic.
-- Make partition State independent of EnforcePartLimits value.
-- Fix multipart srun submission with EnforcePartLimits=NO and job violating
the partition limits.
-- Fix problem updating job state_reason.
-- pmix - Provide HWLOC topology in the job-data if Slurm was configured
with hwloc.
-- Cray - Fix issue restoring jobs when blade count increases due to hardware
reconfiguration.
-- burst_buffer/cray - Hold job after 3 failed pre-run operations.
-- sched/backfill - Check that a user's QOS is allowed to use a partition
before trying to schedule resources on that partition for the job.
-- sacctmgr - Fix displaying nodenames when printing out events or
reservations.
-- Fix mpiexec wrapper to accept task count with more than one digit.
-- Add mpiexec man page to the script.
-- Add salloc_wait_nodes option to the SchedulerParameters parameter in the
slurm.conf file controlling when the salloc command returns in relation to
when nodes are ready for use (i.e. booted).
-- Handle case when slurmctld daemon restart while compute node reboot in
progress. Return node to service rather than setting DOWN.
-- Preserve node "RESERVATION" state when one of multiple overlapping
reservations ends.
-- Restructure srun command locking for task_exit processing logic for improved
parallelism.
-- Modify srun task completion handling to only build the task/node string for
logging purposes if it is needed. Modified for performance purposes.
Alejandro Sanchez
committed
-- Docs - update salloc/sbatch/srun man pages to mention corresponding
environment variables for --mem/--mem-per-cpu and allowed suffixes.
Alejandro Sanchez
committed
-- Silence srun warning when overriding the job ntasks-per-node count
with a lower task count for the step.
-- Docs - assorted spelling fixes.
-- node_features/knl_cray: Fix bug where MCDRAM state could be taken from
capmc rather than cnselect.
-- node_features/knl_cray: If a node is rebooted outside of Slurm's direction,
update it's active features with current MCDRAM and NUMA mode information.
-- Restore ability to manually power down nodes, broken in 15.08.12.
-- Don't log error for job end_time being zero if node health check is still
running.
-- When powering up a node to change it's state (e.g. KNL NUMA or MCDRAM mode)
then pass to the ResumeProgram the job ID assigned to the nodes in the
SLURM_JOB_ID environment variable.
-- Allow a node's PowerUp state flag to be cleared using update_node RPC.
-- capmc_suspend/resume - If a request modify NUMA or MCDRAM state on a set of
nodes or reboot a set of nodes fails then just requeue the job and abort the
entire operation rather than trying to operate on individual nodes.
-- node_features/knl_cray plugin: Increase default CapmcTimeout parameter from
10 to 60 seconds.
-- Fix squeue filter by job license when a job has requested more than 1
license of a certain type.
-- Fix bug in PMIX_Ring in the pmi2 plugin so that it supports singleton mode.
It also updates the testpmixring.c test program so it can be used to check
singleton runs.
-- Automically clean up task/cgroup cpuset and devices cgroups after steps are
completed.
-- Testsuite - Fix test1.83 to handle gaps in node names properly.
Dominik Bartkiewicz
committed
-- BlueGene - correctly scale node counts when enforcing MaxNodes limit.
-- Make sure no attempt is made to schedule a requeued job until all steps are
cleaned (Node Health Check completes for all steps on a Cray).
-- KNL: Correct task affinity logic for some NUMA modes.
-- Add salloc/sbatch/srun --priority option of "TOP" to set job priority to
the highest possible value. This option is only available to Slurm operators
and administrators.
-- Add salloc/sbatch/srun option --use-min-nodes to prefer smaller node counts
when a range of node counts is specified (e.g. "-N 2-4").
-- Validate salloc/sbatch --wait-all-nodes argument.
-- Add "sbatch_wait_nodes" to SchedulerParameters to control default sbatch
behaviour with respect to waiting for all allocated nodes to be ready for
use. Job can override the configuration option using the --wait-all-nodes=#
option.
Tim Wickberg
committed
-- Prevent partition group access updates from resetting last_part_update when
no changes have been made. Prevents backfill scheduler from restarting
mid-cycle unnecessarily.
-- Cray - add NHC_ABSOLUTELY_NO to never run NHC, even on certain edge cases
that it would otherwise be run on with NHC_NO.
-- Ignore GRES/QOS updates that maintain the same value as before.
-- mpi/pmix - prepare temp directory for application.
-- Fix display for the nice and priority values in sprio/scontrol/squeue.
* Changes in Slurm 16.05.4
==========================
-- Fix potential deadlock if running with message aggregation.
-- Streamline when schedule() is called when running with message aggregation
on batch script completes.
-- Fix incorrect casting when [un]packing derived_ec on slurmdb_job_rec_t.
-- Document that persistent burst buffers can not be created or destroyed using
the salloc or srun --bb options.
-- Add support for setting the SLURM_JOB_ACCOUNT, SLURM_JOB_QOS and
SLURM_JOB_RESERVAION environment variables are set for the salloc command.
Document the same environment variables for the salloc, sbatch and srun
commands in their man pages.
-- Fix issue where sacctmgr load cluster.cfg wouldn't load associations
that had a partition in them.
-- Don't return the extern step from sstat by default.
-- In sstat print 'extern' instead of 4294967295 for the extern step.
-- Make advanced reservations work properly with core specialization.
-- Fix race condition in the account_gather plugin that could result in job
stuck in COMPLETING state.
-- Regression test fixes if SelectTypePlugin not managing memory and no node
memory size set (defaults to 1 MB per node).
Dominik Bartkiewicz
committed
-- Add missing partition write locks to _slurm_rpc_dump_nodes/node_single to
prevent a race condition leading to inconsistent sinfo results.
-- Fix task:CPU binding logic for some processors. This bug was introduced
in version 16.05.1 to address KNL bunding problem.
-- Fix two minor memory leaks in slurmctld.
-- Improve partition-specific limit logging from slurmctld daemon.
-- Fix incorrect access check when using MaxNodes setting on the partition.
Dominik Bartkiewicz
committed
-- Fix issue with sacctmgr when specifying a list of clusters to query.
-- Fix issue when calculating future StartTime for a job.
-- Make EnforcePartLimit support logic work with any ordering of partitions
in job submit request.
Tim Wickberg
committed
-- Prevent restoration of wrong CPU governor and frequency when using
multiple task plugins.
-- Prevent slurmd abort if hwloc library fails to populate the "children"
arrays (observed with hwloc version "dev-333-g85ea6e4").
-- burst_buffer/cray: Add "--groupid" to DataWarp "setup" command.
Iakovos Panourgias
committed
-- Fix lustre profiling putting it in the Filesystem dataset instead of the
Network dataset.
-- Fix profiling documentation and code to match be consistent with
Filesystem instead of Lustre.
-- Correct the way watts is calculated in the rapl plugin when using a poll
frequency other than AcctGatherNodeFreq.
-- Don't about step launch if job reaches expected end time while node is
configuring/booting (NOTE: The job end time will be adjusted after node
becomes ready for use).
Tim Wickberg
committed
-- Fix several print routines to respect a custom output delimiter when
printing NO_VAL or INFINITE.
-- Correct documented configurations where --ntasks-per-core and
--ntasks-per-socket are supported.
-- task/affinity plugin buffer allocated too small, can corrupt memory.
* Changes in Slurm 16.05.3
==========================
-- Make it so the extern step uses a reverse tree when cleaning up.
-- If extern step doesn't get added into the proctrack plugin make sure the
sleep is killed.
-- Fix areas the slurmctld can segfault if an extern step is in the system
cleaning up on a restart.
-- Prevent possible incorrect counting of GRES of a given type if a node has
the multiple "types" of a given GRES "name", which could over-subscribe
GRES of a given type.
-- Add web links to Slurm Diamond Collectors (from Harvard University) and
collectd (from EDF).
-- Add job_submit plugin for the "reboot" field.
-- Make some more Slurm constants (INFINITE, NO_VAL64, etc.) available to
job_submit/lua plugins.
-- Send in a -1 for a taskid into spank_task_post_fork for the extern_step.
-- MYSQL - Sightly better logic if a job completion comes in with an end time
of 0.
-- task/cgroup plugin is configured with ConstrainRAMSpace=yes, then set soft
memory limit to allocated memory limit (previously no soft limit was set).
-- Document limitations in burst buffer use by the salloc command (possible
access problems from a login node).
-- Fix proctrack plugin to only add the pid of a process once
(regression in 16.05.2).
-- Fix for sstat to print correct info when requesting jobid.batch as part of
a comma-separated list.
-- CRAY - Fix issue if pid has already been added to another job container.
-- CRAY - Fix add of extern step to AELD.
-- burstbufer/cray: avoid batch submit error condition if waiting for stagein.
-- CRAY - Fix for reporting steps lingering after they are already finished.
-- Testsuite - fix test1.29 / 17.15 for limits with values above 32-bits.
-- CRAY - Simplify when a NHC is called on a step that has unkillable
processes.
-- CRAY - If trying to kill a step and you have NHC_NO_STEPS set run NHC
anyway to attempt to log the backtraces of the potential
unkillable processes.
-- Fix gang scheduling and license release logic if single node job killed on
bad node.
-- Make scontrol show steps show the extern step correctly.
-- Do not scheduled powered down nodes in FAILED state.
-- Do not start slurmctld power_save thread until partition information is read
in order to prevent race condition that can result invalid pointer when
trying to resolve configured SuspendExcParts.
-- Add SLURM_PENDING_STEP id so it won't be confused with SLURM_EXTERN_CONT.
-- Fix for core selection with job --gres-flags=enforce-binding option.
Previous logic would in some cases allocate a job zero cores, resulting in
slurmctld abort.
-- Minimize preempted jobs for configurations with multiple jobs per node.
-- Improve partition AllowGroups caching. Update the table of UIDs permitted to
use a partition based upon it's AllowGroups configuration parameter as new
valid UIDs are found rather than looking up that user's group information
for every job they submit. If the user is now allowed to use the partition,
then do not check that user's group access again for 5 seconds.
-- Add routing queue information to Slurm FAQ web page.
-- Do not select_g_step_finish() a SLURM_PENDING_STEP step, as nothing has
been allocated for the step yet.
-- Fixed race condition in PMIx Fence logic.
-- Prevent slurmctld abort if job is killed or requeued while waiting for
reboot of its allocated compute nodes.
-- Treat invalid user ID in AllowUserBoot option of knl.conf file as error
rather than fatal (log and do not exit).
-- qsub - When doing the default output files for an array in qsub style
make them using the master job ID instead of the normal job ID.
-- Create the extern step while creating the job instead of waiting until the
end of the job to do it.
-- Always report a 0 exit code for the extern step instead of being canceled
or failed based on the signal that would always be killing it.
-- Fix to allow users to update QOS of pending jobs.
-- CRAY - Fix minor memory leak in switch plugin.
-- CRAY - Change slurmconfgen_smw.py to skip over disabled nodes.
-- Fix eligible_time for elasticsearch as well as add queue_wait
(difference between start of job and when it was eligible).
* Changes in Slurm 16.05.2
==========================
-- CRAY - Fix issue where the proctrack plugin could hang if the container
id wasn't able to be made.
-- Move test for job wait reason value of BurstBufferResources and
BurstBufferStageIn later in the scheduling logic.
-- Document which srun options apply to only job, only step, or job and step
allocations.
-- Use more compatible function to get thread name (>= 2.6.11).
-- Fix order of job then step id when noting cleaning flag being set.
-- Make it so the extern step sends a message with accounting information
back to the slurmctld.
-- Make it so the extern step calls the select_g_step_start|finish functions.
-- Don't print error when extern step is canceled because job is ending.
-- Handle a few error codes when dealing with the extern step to make sure
we have the pids added to the system correctly.
-- Add support for job dependencies with job array expressions. Previous logic
required listing each task of job array individually.
-- Make sure tres_cnt is set before creating a slurmdb_assoc_usage_t.
-- Prevent backfill scheduler from starting a second "singleton" job if another
one started during a backfill sleep.
-- Fix for invalid array pointer when creating advanced reservation when job
allocations span heterogeneous nodes (differing core or socket counts).
-- Fix hostlist_ranged_string_xmalloc_dims to correctly not put brackets on
hostlists when brackets == 0.
-- Make sure we don't get brackets when making a range of reserved ports
for a step.
-- Change fatal to an error if port ranges aren't correct when reading state
for steps.
* Changes in Slurm 16.05.1
==========================
-- Fix __cplusplus macro in spank.h to allow compilation with C++.
-- Fix compile issue with older glibc < 2.12
-- Fix for starting batch step with mpi/pmix plugin.
-- Fix for "scontrol -dd show job" with respect to displaying the specific
CPUs allocated to a job on each node. Prior logic would only display
the CPU information for the first node in the job allocation.
-- Print correct return code on failure to update active node features
through sview.
Tim Wickberg
committed
-- Allow QOS timelimit to override partition timelimit when EnforcePartLimits
is set to all/any.
-- Make it so qsub will do a "basename" on a wrapped command for the output
and error files.
-- Fix issue where slurmd could core when running the ipmi energy plugin.
-- Add logic so that slurmstepd can be launched under valgrind.
-- Increase buffer size to read /proc/*/stat files.
-- Fix for tracking job resource allocation when slurmctld is reconfigured
while Cray Node Health Check (NHC) is running. Previous logic would fail to
record the job's allocation then perform release operation upon NHC
completion, resulting in underflow error messages.
-- Make "scontrol show daemons" work with long node names.
-- CRAY - Collect energy using a uint64_t instead of uint32_t.
-- Fix incorrect if statements when determining if the user has a default
account or wckey.
-- Prevent job stuck in configuring state if slurmctld daemon restarted while
PrologSlurmctld is running. Also re-issue burst_buffer/pre-load operation
as needed.
-- Correct task affinity support for FreeBSD.
-- Fix for task affinity on KNL in SNC2/Flat mode.
-- Recalculate a job's memory allocation after node reboot if job requests all
of a node's memory and FastSchedule=0 is configured. Intel KNL memory size
can change on reboot with various MCDRAM modes.
-- Fix small memory leak when printing HealthCheckNodeState.
-- Eliminate memory leaks when AuthInfo is configured.
-- Cray/capmc_resume script modify a node's features (as needed) when the
reinit (reboot) command is issued rather than wait for the nodes to change
to the "on" state.
-- Correctly print ranges when using step values in job arrays.
-- Allow from file names / paths over 256 characters when launching steps,
as well as spaces in the executable name.
-- job_submit.license.lua example modified to send message back to user.
-- Document job --mem=0 option means all memory on a node.
-- Set SLURM_JOB_QOS environment variable to QOS name instead of description.
-- knl_cray.conf file option of CnselectPath added.
-- node_features/knl_cray plugin modified to get current node NUMA and MCDRAM
modes using cnselect command rather than capmc command.
-- liblua - add SLES12 paths to runtime search list.
-- Fix qsub default output and error files for task arrays.
-- Fix qsub to set job_name correctly when wrapping a script (-b y)
-- Cray - set EnforcePartLimits=any in slurm.conf template.
* Changes in Slurm 16.05.0
==========================
-- Update seff to fix warnings with ncpus, and list slurm-perlapi dependency
in spec file.
-- Fix testsuite to consistent use /usr/bin/env {bash,expect} construct.
-- Cray - Ensure that step completion messages get to the database.
-- Fix step cpus_per_task calculation for heterogeneous job allocation.
-- Fix --with-json= configure option to use specified path.
-- Add back thread_id to "thread_id" LogTimeFormat to distinguish between
mutliple threads with the same name. Now displays thread name and id.
-- Change how Slurm determines the NUMA count of a node. Ignore KNL NUMA
that only include memory.
-- Cray - Fix node list parsing in capmc_suspend/resume programs.
-- Fix sbatch #BSUB parsing for -W and -M options.
-- Fix GRES task layout bug that could cause slurmctld to abort.
-- Fix to --gres-flags=enforce-binding logic when multiple sockets needed.
-- Cray node shutdown/reboot scripts, perform operations on all nodes in one
capmc command. Only if that fails, issue the operations in parallel on
individual nodes. Required for scalability.
-- Cleanup two minor Coverity warnings.
-- Make it so the tres units in a job's formatted string are converted like
they are in a step.
-- Correct partition's MaxCPUsPerNode enforcement when nodes are shared by
multiple partitions.
-- node_feature/knl_cray - Prevent slurmctld GRES errors for "hbm" references.
-- Display thread name instead of thread id and remove process name in stderr
logging for "thread_id" LogTimeFormat.
-- Log IP address of bad incomming message to slurmctld.
-- If a user requests tasks, nodes and ntasks-per-node and
tasks-per-node/nodes != tasks print warning and ignore ntasks-per-node.
-- Release CPU "owner" file locks.
-- Fix for job step memory allocation: Reject invalid step at submit time
rather than leaving it queued.
-- Whenever possible, avoid allocating nodes that require a reboot.
-- Remove the SchedulerParameters option of "assoc_limit_continue", making it
the default value. Add option of "assoc_limit_stop". If "assoc_limit_stop"
is set and a job cannot start due to association limits, then do not attempt
to initiate any lower priority jobs in that partition. Setting this can
decrease system throughput and utlization, but avoid potentially starving
larger jobs by preventing them from launching indefinitely.
-- Update a node's socket and cores per socket counts as needed after a node
boot to reflect configuration changes which can occur on KNL processors.
Note that the node's total core count must not change, only the distribution
of cores across varying socket counts (KNL NUMA nodes treated as sockets by
Slurm).
-- Rename partition configuration from "Shared" to "OverSubscribe". Rename
salloc, sbatch, srun option from "--shared" to "--oversubscribe". The old
options will continue to function. Output field names also changed in
scontrol, sinfo, squeue and sview.
-- Add SLURM_UMASK environment variable to user job.
-- knl_conf: Added new configuration parameter of CapmcPollFreq.
-- squeue: remove errant spaces in column formats for "squeue -o %all".
-- Add ARRAY_TASKS mail option to send emails to each task in a job array.
-- Change default compression library for sbcast to lz4.
-- select/cray - Initiate step node health check at start of step termination
rather than after application completely ends so that NHC can capture
information about hung (non-killable) processes.
-- Add --units=[KMGTP] option to sacct to display values in specific unit type.
-- Modify sacct and sacctmgr to display TRES values in converted units.
-- Modify sacctmgr to accept TRES values with [KMGTP] suffixes.
-- Replace hash function with more modern SipHash functions.
-- Add "--with-cray_dir" build/configure option.
-- BB- Only send stage_out email when stage_out is set in script.
-- Add r/w locking to file_bcast receive functions in slurmd.
-- Add TopologyParam option of "TopoOptional" to optimize network topology
only for jobs requesting it.
-- Fix build on FreeBSD.
-- Configuration parameter "CpuFreqDef" used to set default governor for job
step not specifying --cpu-freq (previously the parameter was unused).
-- Fix sshare -o<format> to correctly display new lengths.
-- Update documentation to rename Shared option to OverSubscribe.
-- Update documentation to rename partition Priority option to PriorityTier.
-- Prevent changing of QOS on running jobs.
-- Update accounting when changing QOS on pending jobs.
-- Add support to ntasks_per_socket in task/affinity.
-- Generate init.d and systemd service scripts in etc/ through Make rather
than at configure time to ensure all variable substitutions happen.
-- Use TaskPluginParam for default task binding if no user specified CPU
binding. User --cpu_bind option takes precident over default. No longer
any error if user --cpu_bind option does not match TaskPluginParam.
-- Make sacct and sattach work with older slurmd versions.
-- Fix protocol handling between 15.08 and 16.05 for 'scontrol show config'.
-- Enable prefixes (e.g. info, debug, etc.) in slurmstepd debugging.
* Changes in Slurm 16.05.0pre2
==============================
-- Split partition's "Priority" field into "PriorityTier" (used to order
partitions for scheduling and preemption) plus "PriorityJobFactor" (used by
priority/multifactor plugin in calculating job priority, which is used to
order jobs within a partition for scheduling).
-- Revert call to getaddrinfo, restoring gethostbyaddr (introduced in Slurm
16.05.0pre1) which was failing on some systems.
-- knl_cray.conf - Added AllowMCDRAM, AllowNUMA and ALlowUserBoot
configuration options.
-- Add node_features_p_user_update() function to node_features plugin.
-- Don't print Weight=1 lines in 'scontrol write config' (its the default).
-- Remove PARAMS macro from slurm.h.
-- Remove BEGIN_C_DECLS and END_C_DECLS macros.
-- Check that PowerSave mode configured for node_features/knl_cray plugin.
It is required to reconfigure and reboot nodes.
-- Update documentation to reflect new cgroup default location change from
/cgroup to /sys/fs/cgroup.
-- If NodeHealthCheckProgram configured HealthCheckInterval is non-zero, then
modify slurmd to run it before registering with slurmctld.
-- Fix for tasks being packed onto cores when the requested --cpus-per-task is
greater than the number of threads on a core and --ntasks-per-core is 1.
-- Make it so jobs/steps track ':' named gres/tres, before hand gres/gpu:tesla
would only track gres/gpu, now it will track both gres/gpu and
gres/gpu:tesla as separate gres if configured like
AccountingStorageTRES=gres/gpu,gres/gpu:tesla
-- Added new job dependency type of "aftercorr" which will start a task of a
job array after the corresponding task of another job array completes.
-- Increase default MaxTasksPerNode configuration parameter from 128 to 512.
-- Enable sbcast data compression logic (compress option previously ignored).
-- Add --compress option to srun command for use with --bcast option.
-- Add TCPTimeout option to slurm[dbd].conf. Decouples MessageTimeout from TCP
connections.
-- Don't call primary controller for every RPC when backup is in control.
-- Add --gres-flags=enforce-binding option to salloc, sbatch and srun commands.
If set, the only CPUs available to the job will be those bound to the
selected GRES (i.e. the CPUs identifed in the gres.conf file will be
strictly enforced rather than advisory).
-- Change how a node's allocated CPU count is calculated to avoid double
counting CPUs allocated to multiple jobs at the same time.
-- Added SchedulingParameters option of "bf_min_prio_reserve". Jobs below
the specified threshold will not have resources reserved for them.
-- Added "sacctmgr show lostjobs" to report any orphaned jobs in the database.
-- When a stepd is about to shutdown and send it's response to srun
make the wait to return data only hit after 500 nodes and configurable
based on the TcpTimeout value.
-- Add functionality to reset the lft and rgt values of the association table
with the slurmdbd.
-- Add SchedulerParameter no_env_cache, if set no env cache will be use when
launching a job, instead the job will fail and drain the node if the env
isn't loaded normally.
-- burst_buffer/cray - Plug small memory leak on DataWarp create_persistent
buffer error.
-- burst_buffer/cray - Do not purge a job record if it's stage-out operation
fails. The description of the failure will be in the job's "Reason" field.
-- burst_buffer/cray - Append information about errors to job's AdminComments
field.
-- DBD - When using LogTimeFormat=thread_id fill in the cluster name before
printing anything for a connection.
-- Have srun read in modern env var's instead of obsolete ones
-- mpi/pmix: add the thresholds for the parameters of micro-benchmarks.
* Changes in Slurm 16.05.0pre1
-- Add sbatch "--wait" option that waits for job completion before exiting.
Exit code will match that of spawned job.
-- Modify advanced reservation save/restore logic for core reservations to
support configuration changes (changes in configured nodes or cores counts).
Brian Christiansen
committed
-- Allow ControlMachine, BackupController, DbdHost and DbdBackupHost to be
either short or long hostname.
-- Job output and error files can now contain "%" character by specifying
a file name with two consecutive "%" characters. For example,
"sbatch -o "slurm.%%.%j" for job ID 123 will generate an output file named
"slurm.%.123".
-- Pass user name in Prolog RPC from controller to slurmd when using
PrologFlags=Alloc. Allows SLURM_JOB_USER env variable to be set when using
Native Slurm on a Cray.
-- Add "NumTasks" to job information visible to Slurm commands.
-- Add mail wrapper script "smail" that will include job statistics in email
notification messages.
-- Remove vestigial "SICP" job option (inter-cluster job option). Completely
different logic will be forthcoming.
Brian Christiansen
committed
-- Fix case where the primary and backup dbds would both be performing rollup.
-- Add an ack reply from slurmd to slurmstepd when job setup is done and the
job is ready to be executed.
-- Removed support for authd. authd has not been developed and supported since
-- Introduce a new parameter requeue_setup_env_fail in SchedulerParameters.
A job that fails to setup the environment will be requeued and the node
drained.
-- Add ValidateTimeout and OtherTimeout to "scontrol show burst" output.
-- Increase default sbcast buffer size from 512KB to 8MB.
-- Enable the hdf5 profiling of the batch step.
-- Eliminate redundant environment and script files for job arrays.
-- Stop searching sbatch scripts for #PBS directives after 100 lines of
non-comments. Stop parsing #PBS or #SLURM directives after 1024 characters
into a line. Required for decent perforamnce with huge scripts.
-- Add debug flag for timing Cray portions of the code.
-- Add Multi-Category Security (MCS) infrastructure to permit nodes to be bound
to specific users or groups.
-- Install the pmi2 unix sockets in slurmd spool directory instead of /tmp.
-- Implement the getaddrinfo and getnameinfo instead of gethostbyaddr and
gethostbyname.
-- Finished PMIx implementation.
-- Implemented the --without=package option for configure.
-- Fix sshare to show each individual cluster with -M,--clusters option.
-- Added --deadline option to salloc, sbatch and srun. Jobs which can not be
completed by the user specified deadline will be terminated with a state of
"Deadline" or "DL".
-- Implemented and documented PMIX protocol which is used to bootstrap an
MPI job. PMIX is an alternative to PMI and PMI2.
-- Change default CgroupMountpoint (in cgroup.conf) from "/cgroup" to
"/sys/fs/cgroup" to match current standard.
-- Add #BSUB options to sbatch to read in from the batch script.
-- HDF: Change group name of node from nodename to nodeid.
-- The partition-specific SelectTypeParameters parameter can now be used to
change the memory allocation tracking specification in the global
SelectTypeParameters configuration parameter. Supported partition-specific
values are CR_Core, CR_Core_Memory, CR_Socket and CR_Socket_Memory. If the
global SelectTypeParameters value includes memory allocation management and
the partition-specific value does not, then memory allocation management for
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