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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.
===========================
-- Do not attempt to power down a node which has never responded if the
slurmctld daemon restarts without state.
-- Fix for possible slurmstepd segfault on invalid user ID.
-- MySQL - Fix for possible race condition when archiving multiple clusters
at the same time.
-- Fix compile for when you don't have hwloc.
-- Fix issue where daemons would only listen on specific address given in
slurm.conf instead of all. If looking for specific addresses use
TopologyParam options No*InAddrAny.
-- Cray - Better robustness when dealing with the aeld interface.
-- job_submit.lua - add array_inx value for job arrays.
-- Perlapi - Remove unneeded/undefined mutex.
-- Fix issue when TopologyParam=NoInAddrAny is set the responses wouldn't
make it to the slurmctld when using message aggregation.
-- MySQL - Fix potential memory leak when rolling up data.
-- Fix issue with clustername file when running on NFS with root_squash.
-- Fix race condition with respects to cleaning up the profiling threads
when in use.
-- Fix issues when building on NetBSD.
Tim Wickberg
committed
-- Fix jobcomp/elasticsearch build when libcurl is installed in a
non-standard location.
Alejandro Sanchez
committed
-- Fix MemSpecLimit to explicitly require TaskPlugin=task/cgroup and
ConstrainRAMSpace set in cgroup.conf.
-- MYSQL - Fix order of operations issue where if the database is locked up
and the slurmctld doesn't wait long enough for the response it would give
up leaving the connection open and create a situation where the next message
sent could receive the response of the first one.
-- Fix CFULL_BLOCK distribution type.
Tim Wickberg
committed
-- Prevent sbatch from trying to enable debug messages when using job arrays.
-- Prevent sbcast from enabling "--preserve" when specifying a jobid.
-- Prevent wrong error message from spank plugin stack on GLOB_NOSPACE error.
-- Fix proctrack/lua plugin to prevent possible deadlock.
Tim Wickberg
committed
-- Prevent infinite loop in slurmstepd if execve fails.
-- Prevent multiple responses to REQUEST_UPDATE_JOB_STEP message.
-- Prevent possible deadlock in acct_gather_filesystem/lustre on error.
-- Make it so --mail-type=NONE didn't throw an invalid error.
-- If no default account is given for a user when creating (only a list of
accounts) no default account is printed, previously NULL was printed.
-- Fix for tracking a node's allocated CPUs with gang scheduling.
-- Fix Hidden error during _rpc_forward_data call.
-- Fix bug resulting from wrong order-of-operations in _connect_srun_cr(),
and two others that cause incorrect debug messages.
* Changes in Slurm 15.08.11
===========================
-- Fix for job "--contiguous" option that could cause job allocation/launch
failure or slurmctld crash.
-- Fix to setup logs for single-character program names correctly.
-- Backfill scheduling performance enhancement with large number of running
jobs.
-- Reset job's prolog_running counter on slurmctld restart or reconfigure.
-- burst_buffer/cray - Update job's prolog_running counter if pre_run fails.
-- MYSQL - Make the error message more specific when removing a reservation
and it doesn't meet basic requirements.
-- burst_buffer/cray - Fix for script creating or deleting persistent buffer
would fail "paths" operation and hold the job.
-- power/cray - Prevent possible divide by zero.
-- power/cray - Fix bug introduced in 15.08.10 preventing operation in many
-- Prevent deadlock for flow of data to the slurmdbd when sending reservation
that wasn't set up correctly.
-- burst_buffer/cray - Don't call Datawarp "paths" function if script includes
only create or destroy of persistent burst buffer. Some versions of Datawarp
software return an error for such scripts, causing the job to be held.
-- Fix potential issue when adding and removing TRES which could result
in the slurmdbd segfaulting.
-- Add cast to memory limit calculation to prevent integer overflow for
very large memory values.
-- Bluegene - Fix issue with reservations resizing under the covers on a
restart of the slurmctld.
-- Avoid error message of "Requested cpu_bind option requires entire node to
be allocated; disabling affinity" being generated in some cases where
task/affinity and task/cgroup plugins used together.
-- Fix version issue when packing GRES information between 2 different versions
of Slurm.
-- Fix for srun hanging with OpenMPI and PMIx
-- Better initialization of node_ptr when dealing with protocol_version.
-- Fix incorrect type when initializing header of a message.
-- MYSQL - Fix incorrect usage of limit and union.
-- MYSQL - Remove 'ignore' from alter ignore when updating a table.
-- Documentation - update prolog_epilog page to reflect current behavior
if the Prolog fails.
-- Documentation - clarify behavior of 'srun --export=NONE' in man page.
-- Fix potential gres underflow on restart of slurmctld.
-- Fix sacctmgr to remove a user who has no associations.
* Changes in Slurm 15.08.10
===========================
-- Fix issue where if a slurmdbd rollup lasted longer than 1 hour the
rollup would effectively never run again.
Matthieu Hautreux
committed
-- Make error message in the pmi2 code to debug as the issue can be expected
and retries are done making the error message a little misleading.
-- Power/cray: Don't specify NID list to Cray APIs. If any of those nodes are
not in a ready state, the API returned an error for ALL nodes rather than
valid data for nodes in ready state.
-- Fix potential divide by zero when tree_width=1.
-- checkpoint/blcr plugin: Fix memory leak.
-- If using PrologFlags=contain: Don't launch the extern step if a job is
cancelled while launching.
-- Remove duplicates from AccountingStorageTRES
-- Fix backfill scheduler race condition that could cause invalid pointer in
select/cons_res plugin. Bug introduced in 15.08.9.
-- Avoid double calculation on partition QOS if the job is using the same QOS.
-- Do not change a job's time limit when updating unrelated field in a job.
* Changes in Slurm 15.08.9
==========================
-- BurstBuffer/cray - Defer job cancellation or time limit while "pre-run"
operation in progress to avoid inconsistent state due to multiple calls
to job termination functions.
-- Fix issue with resizing jobs and limits not be kept track of correctly.
-- BGQ - Remove redeclaration of job_read_lock.
-- BGQ - Tighter locks around structures when nodes/cables change state.
-- Make it possible to change CPUsPerTask with scontrol.
-- Make it so scontrol update part qos= will take away a partition QOS from
a partition.
-- Fix issue where SocketsPerBoard didn't translate to Sockets when CPUS=
was also given.
-- Add note to slurm.conf man page about setting "--cpu_bind=no" as part
of SallocDefaultCommand if a TaskPlugin is in use.
-- Set correct reason when a QOS' MaxTresMins is violated.
-- Insure that a job is completely launched before trying to suspend it.
-- Remove historical presentations and design notes. Only distribute
maintained doc/html and doc/man directories.
-- Remove duplicate xmalloc() in task/cgroup plugin.
-- Backfill scheduler to validate correct job partition for job submitted to
multiple partitions.
-- Force close on exec on first 256 file descriptors when launching a
slurmstepd to close potential open ones.
-- Step GRES value changed from type "int" to "int64_t" to support larger
values.
-- Fix getting reservations to database when database is down.
-- Fix issue with sbcast not doing a correct fanout.
-- Fix issue where steps weren't always getting the gres/tres involved.
-- Fixed double read lock on getting job's gres/tres.
-- Fix display for RoutePlugin parameter to display the correct value.
-- Fix route/topology plugin to prevent segfault in sbcast when in use.
-- Fix Cray slurmconfgen_smw.py script to use nid as nid, not nic.
-- Fix Cray NHC spawning on job requeue. Previous logic would leave nodes
allocated to a requeued job as non-usable on job termination.
-- burst_buffer/cray plugin: Prevent a requeued job from being restarted while
file stage-out is still in progress. Previous logic could restart the job
and not perform a new stage-in.
-- Fix job array formatting to allow return [0-100:2] display for arrays with
step functions rather than [0,2,4,6,8,...] .
-- FreeBSD - replace Linux-specific set_oom_adj to avoid errors in slurmd log.
-- Add option for TopologyParam=NoInAddrAnyCtld to make the slurmctld listen
on only one port like TopologyParam=NoInAddrAny does for everything else.
-- Fix burst buffer plugin to prevent corruption of the CPU TRES data when bb
is not set as an AccountingStorageTRES type.
-- Surpress error messages in acct_gather_energy/ipmi plugin after repeated
failures.
-- Change burst buffer use completion email message from
"SLURM Job_id=1360353 Name=tmp Staged Out, StageOut time 00:01:47" to
"SLURM Job_id=1360353 Name=tmp StageOut/Teardown time 00:01:47"
-- Generate burst buffer use completion email immediately afer teardown
completes rather than at job purge time (likely minutes later).
-- Fix issue when adding a new TRES to AccountingStorageTRES for the first
time.
-- Update gang scheduling tables when job manually suspended or resumed. Prior
logic could mess up job suspend/resume sequencing.
-- Update gang scheduling data structures when job changes in size.
-- Associations - prevent hash table corruption if uid initially unset for
a user, which can cause slurmctld to crash if that user is deleted.
-- Avoid possibly aborting srun on SIGSTOP while creating the job step due to
threading bug.
-- Fix deadlock issue with burst_buffer/cray when a newly created burst
buffer is found.
-- burst_buffer/cray: Set environment variables just before starting job rather
than at job submission time to reflect persistent buffers created or
modified while the job is pending.
-- Fix check of per-user qos limits on the initial run by a user.
-- Fix gang scheduling resource selection bug which could prevent multiple jobs
from being allocated the same resources. Bug was introduced in 15.08.6.
-- Don't print the Rgt value of an association from the cache as it isn't
kept up to date.
-- burst_buffer/cray - If the pre-run operation fails then don't issue
duplicate job cancel/requeue unless the job is still in run state. Prevents
jobs hung in COMPLETING state.
-- task/cgroup - Fix bug in task binding to CPUs.
* Changes in Slurm 15.08.8
==========================
-- Backfill scheduling properly synchronized with Cray Node Health Check.
Prior logic could result in highest priority job getting improperly
postponed.
-- Make it so daemons also support TopologyParam=NoInAddrAny.
-- If scancel is operating on large number of jobs and RPC responses from
slurmctld daemon are slow then introduce a delay in sending the cancel job
requests from scancel in order to reduce load on slurmctld.
-- Remove redundant logic when updating a job's task count.
-- MySQL - Fix querying jobs with reservations when the id's have rolled.
-- Perl - Fix use of uninitialized variable in slurm_job_step_get_pids.
-- Launch batch job requsting --reboot after the boot completes.
-- Move debug messages like "not the right user" from association manager
to debug3 when trying to find the correct association.
-- Fix incorrect logic when querying assoc_mgr information.
-- Move debug messages to debug3 notifying a gres_bit_alloc was NULL for
gres types without a file.
-- Sanity Check Patch to setup variables for RAPL if in a race for it.
-- burst_buffer/cray - Increase size of intermediate variable used to store
buffer byte size read from DW instance from 32 to 64-bits to avoid overflow
and reporting invalid buffer sizes.
-- Allow an existing reservation with running jobs to be modified without
Flags=IGNORE_JOBS.
-- srun - don't attempt to execve() a directory with a name matching the
requested command
-- Do not automatically relocate an advanced reservation for individual cores
that spans multiple nodes when nodes in that reservation go down (e.g.
a 1 core reservation on node "tux1" will be moved if node "tux1" goes
down, but a reservation containing 2 cores on node "tux1" and 3 cores on
"tux2" will not be moved node "tux1" goes down). Advanced reservations for
whole nodes will be moved by default for down nodes.
-- Avoid possible double free of memory (and likely abort) for slurmctld in
background mode.
-- contribs/cray/csm/slurmconfgen_smw.py - avoid including repurposed compute
nodes in configs.
-- Support AuthInfo in slurmdbd.conf that is different from the value in
slurm.conf.
-- Fix hdf5 build on ppc64 by using correct fprintf formatting for types.
-- Fix cosmetic printing of NO_VALs in scontrol show assoc_mgr.
-- Fix perl api for newer perl versions.
Brian Christiansen
committed
-- Fix for jobs requesting cpus-per-task (eg. -c3) that exceed the number of
cpus on a core.
-- Remove unneeded perl files from the .spec file.
-- Flesh out filters for scontrol show assoc_mgr.
-- Add function to remove assoc_mgr_info_request_t members without freeing
structure.
-- Fix build on some non-glibc systems by updating includes.
-- Add new PowerParameters options of get_timeout and set_timeout. The default
set_timeout was increased from 5 seconds to 30 seconds. Also re-read current
power caps periodically or after any failed "set" operation.
-- Fix slurmdbd segfault when listing users with blank user condition.
-- Save the ClusterName to a file in SaveStateLocation, and use that to
verify the state directory belongs to the given cluster at startup to avoid
corruption from multiple clusters attempting to share a state directory.
-- MYSQL - Fix issue when rerolling monthly data to work off correct time
period. This would only hit you if you rerolled a 15.08 prior to this
commit.
-- If FastSchedule=0 is used make sure TRES are set up correctly in accounting.
-- Fix sreport's truncation of columns with large TRES and not using
a parsing option.
-- Make sure count of boards are restored when slurmctld has option -R.
-- When determine if a job can fit into a TRES time limit after resources
have been selected set the time limit appropriately if the job didn't
request one.
-- Fix inadequate locks when updating a partition's TRES.
-- Add new assoc_limit_continue flag to SchedulerParameters.
Alejandro Sanchez
committed
-- Avoid race in acct_gather_energy_cray if energy requested before available.
-- MYSQL - Avoid having multiple default accounts when a user is added to
a new account and making it a default all at once.
* Changes in Slurm 15.08.7
==========================
-- sched/backfill: If a job can not be started within the configured
backfill_window, set it's start time to 0 (unknown) rather than the end
of the backfill_window.
-- Remove the 1024-character limit on lines in batch scripts.
-- burst_buffer/cray: Round up swap size by configured granularity.
-- select/cray: Log repeated aeld reconnects.
-- task/affinity: Disable core-level task binding if more CPUs required than
available cores.
-- Preemption/gang scheduling: If a job is suspended at slurmctld restart or
reconfiguration time, then leave it suspended rather than resume+suspend.
-- Don't use lower weight nodes for job allocation when topology/tree used.
-- BGQ - If a cable goes into error state remove the under lying block on
a dynamic system and mark the block in error on a static/overlap system.
-- BGQ - Fix regression in 9cc4ae8add7f where blocks would be deleted on
static/overlap systems when some hardware issue happens when restarting
the slurmctld.
Alejandro Sanchez
committed
-- Log if CLOUD node configured without a resume/suspend program or suspend
time.
-- MYSQL - Better locking around g_qos_count which was previously unprotected.
-- Correct size of buffer used for jobid2str to avoid truncation.
Brian Christiansen
committed
-- Fix allocation/distribution of tasks across multiple nodes when
--hint=nomultithread is requested.
-- If a reservation's nodes value is "all" then track the current nodes in the
system, even if those nodes change.
-- Fix formatting if using "tree" option with sreport.
-- Make it so sreport prints out a line for non-existent TRES instead of
error message.
-- Set job's reason to "Priority" when higher priority job in that partition
(or reservation) can not start rather than leaving the reason set to
"Resources".
-- Fix memory corruption when a new non-generic TRES is added to the
DBD for the first time. The corruption is only noticed at shutdown.
-- burst_buffer/cray - Improve tracking of allocated resources to handle race
condition when reading state while buffer allocation is in progress.
-- If a job is submitted only with -c option and numcpus is updated before
the job starts update the cpus_per_task appropriately.
-- Update salloc/sbatch/srun documentation to mention time granularity.
-- Fixed memory leak when freeing assoc_mgr_info_msg_t.
-- Prevent possible use of empty reservation core bitmap, causing abort.
-- Remove unneeded pack32's from qos_rec when qos_rec is NULL.
-- Make sacctmgr print MaxJobsPerUser when adding/altering a QOS.
-- Correct dependency formatting to print array task ids if set.
-- Update sacctmgr help with current QOS options.
-- Update slurmstepd to initialize authentication before task launch.
-- burst_cray/cray: Eliminate need for dedicated nodes.
-- If no MsgAggregationParams is set don't set the internal string to
anything. The slurmd will process things correctly after the fact.
-- Fix output from api when printing job step not found.
-- Don't allow user specified reservation names to disrupt the normal
reservation sequeuece numbering scheme.
-- Fix scontrol to be able to accept TRES as an option when creating
a reservation.
-- contrib/torque/qstat.pl - return exit code of zero even with no records
printed for 'qstat -u'.
-- When a reservation is created or updated, compress user provided node names
using hostlist functions (e.g. translate user input of "Nodes=tux1,tux2"
into "Nodes=tux[1-2]").
-- Change output routines for scontrol show partition/reservation to handle
unexpectedly large strings.
-- Add more partition fields to "scontrol write config" output file.
-- Backfill scheduling fix: If a job can't be started due to a "group" resource
limit, rather than reserve resources for it when the next job ends, don't
reserve any resources for it.
-- Avoid slurmstepd abort if malloc fails during accounting gather operation.
Brian Christiansen
committed
-- Fix nodes from being overallocated when allocation straddles multiple nodes.
-- Fix memory leak in slurmctld job array logic.
Brian Christiansen
committed
-- Prevent decrementing of TRESRunMins when AccountingStorageEnforce=limits is
not set.
-- Fix backfill scheduling bug which could postpone the scheduling of jobs due
to avoidance of nodes in COMPLETING state.
-- Properly account for memory, CPUs and GRES when slurmctld is reconfigured
while there is a suspended job. Previous logic would add the CPUs, but not
memory or GPUs. This would result in underflow/overflow errors in select
cons_res plugin.
-- Strip flags from a job state in qstat wrapper before evaluating.
-- Add missing job states from the qstat wrapper.
* Changes in Slurm 15.08.6
==========================
-- In slurmctld log file, log duplicate job ID found by slurmd. Previously was
being logged as prolog/epilog failure.
-- If a job is requeued while in the process of being launch, remove it's
job ID from slurmd's record of active jobs in order to avoid generating a
duplicate job ID error when launched for the second time (which would
drain the node).
Tim Wickberg
committed
-- Cleanup messages when handling job script and environment variables in
older directory structure formats.
-- Prevent triggering gang scheduling within a partition if configured with
PreemptType=partition_prio and PreemptMode=suspend,gang.
-- Decrease parallelism in job cancel request to prevent denial of service
when cancelling huge numbers of jobs.
-- If all ephemeral ports are in use, try using other port numbers.
-- Revert way lib lua is handled when doing a dlopen, fixing a regression in
15.08.5.
Brian Christiansen
committed
-- Set the debug level of the rmdir message in xcgroup_delete() to debug2.
-- Fix the qstat wrapper when user is removed from the system but still
has running jobs.
-- Log the request to terminate a job at info level if DebugFlags includes
the Steps keyword.
-- Fix potential memory corruption in _slurm_rpc_epilog_complete as well as
_slurm_rpc_complete_job_allocation.
-- Fix cosmetic display of AccountingStorageEnforce option "nosteps" when
in use.
-- If a job can never be started due to unsatisfied job dependencies, report
the full original job dependency specification rather than the dependencies
remaining to be satisfied (typically NULL).
-- Refactor logic to synchronize active batch jobs and their script/environment
files, reducing overhead dramatically for large numbers of active jobs.
-- Avoid hard-link/copy of script/environment files for job arrays. Use the
master job record file for all tasks of the job array.
NOTE: Job arrays submitted to Slurm version 15.08.6 or later will fail if
the slurmctld daemon is downgraded to an earlier version of Slurm.
-- Move slurmctld mail handler to separate thread for improved performance.
-- Fix containment of adopted processes from pam_slurm_adopt.
-- If a pending job array has multiple reasons for being in a pending state,
then print all reasons in a comma separated list.
* Changes in Slurm 15.08.5
==========================
Brian Christiansen
committed
-- Prevent "scontrol update job" from updating jobs that have already finished.
-- Show requested TRES in "squeue -O tres" when job is pending.
-- Backfill scheduler: Test association and QOS node limits before reserving
resources for pending job.
-- burst_buffer/cray: If teardown operations fails, sleep and retry.
-- Clean up the external pids when using the PrologFlags=Contain feature
and the job finishes.
-- burst_buffer/cray: Support file staging when job lacks job-specific buffer
(i.e. only persistent burst buffers).
-- Added srun option of --bcast to copy executable file to compute nodes.
-- Fix for advanced reservation of burst buffer space.
-- BurstBuffer/cray: Add logic to terminate dw_wlm_cli child processes at
shutdown.
-- If job can't be launch or requeued, then terminate it.
-- BurstBuffer/cray: Enable clearing of burst buffer string on completed job
as a means of recovering from a failure mode.
-- Fix wrong memory free when parsing SrunPortRange=0-0 configuration.
-- BurstBuffer/cray: Fix job record purging if cancelled from pending state.
-- BGQ - Handle database throw correctly when syncing users on blocks.
-- MySQL - Make sure we don't have a NULL string returned when not
requesting any specific association.
-- sched/backfill: If max_rpc_cnt is configured and the backlog of RPCs has
not cleared after yielding locks, then continue to sleep.
-- Preserve the job dependency description displayed in 'scontrol show job'
even if the dependee jobs was terminated and cleaned causing the
dependent to never run because of DependencyNeverSatisfied.
-- Correct job task count calculation if only node count and ntasks-per-node
-- Make sure the association manager converts any string to be lower case
as all the associations from the database will be lower case.
-- Sanity check for xcgroup_delete() to verify incoming parameter is valid.
-- Fix formatting for sacct with variables that switched from uint32_t to
uint64_t.
-- Set up extern step to track any children of an ssh if it leaves anything
else behind.
-- Prevent slurmdbd divide by zero if no associations defined at rollup time.
-- Multifactor - Add sanity check to make sure pending jobs are handled
correctly when PriorityFlags=CALCULATE_RUNNING is set.
-- Add slurmdb_find_tres_count_in_string() to slurm db perl api.
-- Make lua dlopen() conditional on version found at build.
-- sched/backfill - Delay backfill scheduler for completing jobs only if
CompleteWait configuration parameter is set (make code match documentation).
-- Release a job's allocated licenses only after epilog runs on all nodes
rather than at start of termination process.
-- Cray job NHC delayed until after burst buffer released and epilog completes
on all allocated nodes.
-- Fix abort of srun if using PrologFlags=NoHold
-- Let devices step_extern cgroup inherit attributes of job cgroup.
Brian Christiansen
committed
-- Add new hook to Task plugin to be able to put adopted processes in the
step_extern cgroups.
-- Fix AllowUsers documentation in burst_buffer.conf man page. Usernames are
comma separated, not colon delimited.
-- Fix issue with time limit not being set correctly from a QOS when a job
requests no time limit.
-- In both sched/basic and backfill: If a job can not be started due to some
account/qos limit, then don't start other jobs which could delay jobs. The
old logic would skip the job and start other jobs, which could delay the
higher priority job.
-- select/cray: Prevent NHC from running more than once per job or step.
-- Fix fields not properly printed when adding an account through sacctmgr.
-- Update LBNL Node Health Check (NHC) link on FAQ.
-- Fix multifactor plugin to prevent slurmctld from getting segmentation fault
should the tres_alloc_cnt be NULL.
-- sbatch/salloc - Move nodelist logic before the time min_nodes is used
so we can set it correctly before tasks are set.
* Changes in Slurm 15.08.4
==========================
-- Fix typo for the "devices" cgroup subsystem in pam_slurm_adopt.c
-- Fix TRES_MAX flag to work correctly.
-- Added burst_buffer.conf flag parameter of "TeardownFailure" which will
teardown and remove a burst buffer after failed stage-in or stage-out.
By default, the buffer will be preserved for analysis and manual teardown.
-- Prevent a core dump in srun if the signal handler runs during the job
allocation causing the step context to be NULL.
-- Don't fail job if multiple prolog operations in progress at slurmctld
restart time.
-- Burst_buffer/cray: Fix to purge terminated jobs with burst buffer errors.
-- Burst_buffer/cray: Don't stall scheduling of other jobs while a stage-in
is in progress.
-- Make it possible to query 'extern' step with sstat.
-- Make 'extern' step show up in the database.
-- MYSQL - Quote assoc table name in mysql query.
-- Make SLURM_ARRAY_TASK_MIN, SLURM_ARRAY_TASK_MAX, and SLURM_ARRAY_TASK_STEP
environment variables available to PrologSlurmctld and EpilogSlurmctld.
-- Fix slurmctld bug in which a pending job array could be canceled
by a user different from the owner or the administrator.
-- Support taking node out of FUTURE state with "scontrol reconfig" command.
-- Sched/backfill: Fix to properly enforce SchedulerParameters of
bf_max_job_array_resv.
-- Enable operator to reset sdiag data.
-- jobcomp/elasticsearch plugin: Add array_job_id and array_task_id fields.
-- Remove duplicate #define IS_NODE_POWER_UP.
-- Added SchedulerParameters option of max_script_size.
-- Add REQUEST_ADD_EXTERN_PID option to add pid to the slurmstepd's extern
step.
Brian Christiansen
committed
-- Add unique identifiers to anchor tags in HTML generated from the man pages.
-- Add with_freeipmi option to spec file.
-- Minor elasticsearch code improvements
* Changes in Slurm 15.08.3
==========================
-- Correct Slurm's RPM build if Munge is not installed.
-- Job array termination status email ExitCode based upon highest exit code
from any task in the job array rather than the last task. Also change the
state from "Ended" or "Failed" to "Mixed" where appropriate.
-- Squeue recombines pending job array records only if their name and partition
are identical.
-- Fix some minor leaks in the job info and step info API.
-- Export missing QOS id when filling in association with the association
manager.
-- Fix invalid reference if a lua job_submit plugin references a default qos
when a user doesn't exist in the database.
-- Use association enforcement in the lua plugin.
-- Fix a few spots missing defines of accounting_enforce or acct_db_conn
in the plugins.
-- Show requested TRES in scontrol show jobs when job is pending.
-- Improve sched/backfill support for job features, especially XOR construct.
-- Correct scheduling logic for job features option with XOR construct that
could delay a job's initiation.
-- Remove unneeded frees when creating a tres string.
-- Send a tres_alloc_str for the batch step
-- Fix incorrect check for slurmdb_find_tres_count_in_string in various places,
it needed to check for INFINITE64 instead of zero.
-- Don't allow scontrol to create partitions with the name "DEFAULT".
-- burst_buffer/cray: Change error from "invalid request" to "permssion denied"
if a non-authorized user tries to create/destroy a persistent buffer.
-- PrologFlags work: Setting a flag of "Contain" implicitly sets the "Alloc"
flag. Fix code path which could prevent execution of the Prolog when the
"Alloc" or "Contain" flag were set.
-- Fix for acct_gather_energy/cray|ibmaem to work with missed enum.
-- MYSQL - When inserting a job and begin_time is 0 do not set it to
submit_time. 0 means the job isn't eligible yet so we need to treat it so.
-- MYSQL - Don't display ineligible jobs when querying for a window of time.
-- Fix creation of advanced reservation of cores on nodes which are DOWN.
-- Return permission denied if regular user tries to release job held by an
administrator.
-- MYSQL - Fix rollups for multiple jobs running by the same association
in an hour counting multiple times.
-- Burstbuffer/Cray plugin - Fix for persistent burst buffer use.
-- Modifications to pam_slurm_adopt to work correctly for the "extern" step.
-- Alphabetize debugflags when printing them out.
-- Fix systemd's slurmd service from killing slurmstepds on shutdown.
-- Fixed counter of not indexed jobs, error_cnt post-increment changed to
pre-increment.
* Changes in Slurm 15.08.2
==========================
-- Fix for tracking node state when jobs that have been allocated exclusive
access to nodes (i.e. entire nodes) and later relinquish some nodes. Nodes
would previously appear partly allocated and prevent use by other jobs.
-- Correct some cgroup paths ("step_batch" vs. "step_4294967294", "step_exter"
vs. "step_extern", and "step_extern" vs. "step_4294967295").
-- Fix advanced reservation core selection logic with network topology.
-- MYSQL - Remove restriction to have to be at least an operator to query TRES
values.
-- For pending jobs have sacct print 0 for nnodes instead of the bogus 2.
-- Fix for tracking node state when jobs that have been allocated exclusive
access to nodes (i.e. entire nodes) and later relinquish some nodes. Nodes
would previously appear partly allocated and prevent use by other jobs.
-- Fix updating job in db after extending job's timelimit past partition's
timelimit.
-- Fix srun -I<timeout> from flooding the controller with step create requests.
-- Requeue/hold batch job launch request if job already running (possible if
node went to DOWN state, but jobs remained active).
-- If a job's CPUs/task ratio is increased due to configured MaxMemPerCPU,
then increase it's allocated CPU count in order to enforce CPU limits.
-- Don't mark powered down node as not responding. This could be triggered by
race condition of the node suspend and ping logic, preventing use of the
node.
-- Don't requeue RPC going out from slurmctld to DOWN nodes (can generate
repeating communication errors).
-- Propagate sbatch "--dist=plane=#" option to srun.
-- Add acct_gather_energy/ibmaem plugin for systems with IBM Systems Director
Active Energy Manager.
-- Fix spec file to look for mariadb or mysql devel packages for build
requirements.
-- MySQL - Improve the code with asking for jobs in a suspended state.
-- Fix slurcmtld allowing root to see job steps using squeues -s.
-- Do not send burst buffer stage out email unless the job uses burst buffers.
-- Fix sacct to not return all jobs if the -j option is given with a trailing
','.
-- Permit job_submit plugin to set a job's priority.
-- Fix occasional srun segfault.
-- Fix issue with sacct, printing 0_0 for array's that had finished in the
database but the start record hadn't made it yet.
-- sacctmgr - Don't allow default account associations to be removed
from a user.
-- Fix sacct -j, (nothing but a comma) to not return all jobs.
-- Fixed slurmctld not sending cold-start messages correctly to the database
when a cold-start (-c) happens to the slurmctld.
Brian Christiansen
committed
-- Fix case where if the backup slurmdbd has existing connections when it gives
up control that the it would be killed.
-- Fix task/cgroup affinity to work correctly with multi-socket
single-threaded cores. A regression caused only 1 socket to be used on
this kind of node instead of all that were available.
-- MYSQL - Fix minor issue after an index was added to the database it would
previously take 2 restarts of the slurmdbd to make it stick correctly.
-- Add hv_to_qos_cond() and qos_rec_to_hv() functions to the Perl interface.
-- Add new burst_buffer.conf parameters: ValidateTimeout and OtherTimeout.
See man page for details.
-- Fix burst_buffer/cray support for interactive allocations >4GB.
-- Correct backfill scheduling logic for job with INFINITE time limit.
-- Fix issue on a scontrol reconfig all available GRES/TRES would be zeroed
out.
Brian Christiansen
committed
-- Set SLURM_HINT environment variable when --hint is used with sbatch or
salloc.
-- Add scancel -f/--full option to signal all steps including batch script and
all of its child processes.
-- Fix salloc -I to accept an argument.
-- Avoid reporting more allocated CPUs than exist on a node. This can be
triggered by resuming a previosly suspended job, resulting in
oversubscription of CPUs.
-- Fix the pty window manager in slurmstepd not to retry IO operation with
srun if it read EOF from the connection with it.
-- sbatch --ntasks option to take precedence over --ntasks-per-node plus node
count, as documented. Set SLURM_NTASKS/SLURM_NPROCS environment variables
accordingly.
-- MYSQL - Make sure suspended time is only subtracted from the CPU TRES
as it is the only TRES that can be given to another job while suspended.
-- Clarify how TRESBillingWeights operates on memory and burst buffers.
* Changes in Slurm 15.08.1
==========================
-- Fix test21.30 and 21.34 to check grpwall better.
-- Add time to the partition QOS the job is running on instead of just the
job QOS.
-- Print usage for GrpJobs, GrpSubmitJobs and GrpWall even if there is no
limit.
-- If AccountingEnforce=safe is set make sure a job can finish before going
over the limit with grpwall on a QOS or association.
-- burst_buffer/cray - Major updates based upon recent Cray changes.
-- Improve job state reason string when required nodes not available.
-- Fix missing else when packing an update partition message
Brian Christiansen
committed
-- Fix srun from inheriting the SLURM_CPU_BIND and SLURM_MEM_BIND environment
variables when running in an existing srun (e.g. an srun within an salloc).
-- Fix missing else when packing an update partition message.
-- Use more flexible mechnanism to find json installation.
-- Make sure safe_limits was initialized before processing limits in the
slurmctld.
-- Fix for burst_buffer/cray to parse type option correctly.
-- Fix memory error and version number in the nonstop plugin and reservation
code.
-- When requesting GRES in a step check for correct variable for the count.
-- Fix issue with GRES in steps so that if you have multiple exclusive steps
and you use all the GRES up instead of reporting the configuration isn't
available you hold the requesting step until the GRES is available.
-- MYSQL - Change debug to print out with DebugFlags=DB_Step instead of debug4
-- Simplify code when user is selecting a job/step/array id and removed
anomaly when only asking for 1 (task_id was never set to INFINITE).
-- MYSQL - If user is requesting various task_ids only return requested steps.
-- Fix issue when tres cnt for energy is 0 for total reported.
-- Resolved scalability issues of power adaptive scheduling with layouts.
-- Burst_buffer/cray bug - Fix teardown race condition that can result in
infinite loop.
-- Job "--reboot" option automatically, set's exclusive node mode.
-- Fix memory leak when using PrologFlags=Alloc.
-- Fix truncation of job reason in squeue.
-- If a node is in DOWN or DRAIN state, leave it unavailable for allocation
when powered down.
-- Update the slurm.conf man page documenting better nohold_on_prolog_fail
variable.
-- Don't trucate task ID information in "squeue --array/-r" or "sview".
-- Fix a bug which caused scontrol to core dump when releasing or
holding a job by name.
-- Fix unit conversion bug in slurmd which caused wrong memory calculation
for cgroups.
-- Fix issue with GRES in steps so that if you have multiple exclusive steps
and you use all the GRES up instead of reporting the configuration isn't
available you hold the requesting step until the GRES is available.
-- Fix slurmdbd backup to use DbdAddr when contacting the primary.
-- Fix error in MPI documentation.
-- Fix to handle arrays with respect to number of jobs submitted. Previously
only 1 job was accounted (against MaxSubmitJob) for when an array was
submitted.
-- Correct counting for job array limits, job count limit underflow possible
when master cancellation of master job record.
-- Combine 2 _valid_uid_gid functions into a single function to avoid
diversion.
-- Pending job array records will be combined into single line by default,
even if started and requeued or modified.
-- Fix sacct --format=nnodes to print out correct information for pending
jobs.
-- Make is so 'scontrol update job 1234 qos='' will set the qos back to
the default qos for the association.
-- Add [Alloc|Req]Nodes to sacct to be more like cpus.
-- Fix sacct documentation about [Alloc|Req]TRES
-- Put node count in TRES string for steps.
-- Fix issue with wrong protocol version when using the srun --no-allocate
option.
-- Fix TRES counts on GRES on a clean start of the slurmctld.
-- Add ability to change a job array's maximum running task count:
"scontrol update jobid=# arraytaskthrottle=#"
* Changes in Slurm 15.08.0
==========================
-- Fix issue with frontend systems (outside ALPs or BlueGene) where srun
wouldn't get the correct protocol version to launch a step.
-- Fix for message aggregation return rpcs where none of the messages are
intended for the head of the tree.
-- Fix segfault in sreport when there was no response from the dbd.
-- ALPS - Fix compile to not link against -ljob and -lexpat with every lib
or binary.
-- Fix testing for CR_Memory when CR_Memory and CR_ONE_TASK_PER_CORE are used
with select/linear.
-- When restarting or reconfiging the slurmctld, if job is completing handle
accounting correctly to avoid meaningless errors about overflow.
-- Add AccountingStorageTRES to scontrol show config
-- MySQL - Fix minor memory leak if a connection ever goes away whist using it.
-- ALPS - Make it so srun --hint=nomultithread works correctly.
-- Make MaxTRESPerUser work in sacctmgr.
-- Fix handling of requeued jobs with steps that are still finishing.
-- Cleaner copy for PriorityWeightTRES, it also fixes a core dump when trying
to free it otherwise.
-- Add environment variables SLURM_ARRAY_TASK_MAX, SLURM_ARRAY_TASK_MIN,
SLURM_ARRAY_TASK_STEP for job arrays.
-- Fix srun to use the NoInAddrAny TopologyParam option.
-- Change QOS flag name from PartitionQOS to OverPartQOS to be a better
description.
-- Make complete_batch_script RPC work with message aggregation.
-- Do not count slurmctld threads waiting in a "throttle" lock against the
daemon's thread limit as they are not contending for resources.
-- Modify slurmctld outgoing RPC logic to support more parallel tasks (up to
85 RPCs and 256 pthreads; the old logic supported up to 21 RPCs and 256
threads). This change can dramatically improve performance for RPCs
operating on small node counts.
-- Increase total backfill scheduler run time in stats_info_response_msg data
structure from 32 to 64 bits in order to prevent overflow.
-- Add NoInAddrAny option to TopologyParam in the slurm.conf which allows to
bind to the interface of return of gethostname instead of any address on
the node which avoid RSIP issues in Cray systems. This is most likely
useful in other systems as well.
-- Fix memory leak in Slurm::load_jobs perl api call.
-- Added --noconvert option to sacct, sstat, squeue and sinfo which allows
values to be displayed in their original unit types (e.g. 2048M won't be
converted to 2G).
-- Fix spelling of node_rescrs to node_resrcs in Perl API.
-- Fix node state race condition, UNKNOWN->IDLE without configuration info.
-- Cray: Disable LDAP references from slurmstepd on job launch due for
improved scalability.
-- Remove srun "read header error" due to application termination race
condition.
-- Optimize sacct queries with additional db indexes.
-- Add SLURM_TOPO_LEN env variable for scontrol show topology.
-- Add free_mem to node information.
-- Fix abort of batch launch if prolog is running, wait for prolog instead.
Brian Christiansen
committed
-- Fix case where job would get the wrong cpu count when using
--ntasks-per-core and --cpus-per-task together.
-- Add TRESBillingWeights to partitions in slurm.conf which allows taking into
consideration any TRES Type when calculating the usage of a job.
-- Add PriorityWeightTRES slurm.conf option to be able to configure priority
factors for TRES types.
* Changes in Slurm 15.08.0pre6
==============================
-- Add scontrol options to view and modify layouts tables.
-- Add MsgAggregationParams which controls a reverse tree to the slurmctld
which can be used to aggregate messages to the slurmctld into a single
message to reduce communication to the slurmctld. Currently only epilog
complete messages and node registration messages use this logic.
-- Add sacct and squeue options to print trackable resources.
-- Add sacctmgr option to display trackable resources.
-- If an salloc or srun command is executed on a "front-end" configuration,
that job will be assigned a slurmd shepherd daemon on the same host as used
to execute the command when possible rather than an slurmd daemon on an
arbitrary front-end node.
-- Add srun --accel-bind option to control how tasks are bound to GPUs and NIC
Generic RESources (GRES).
-- gres/nic plugin modified to set OMPI_MCA_btl_openib_if_include environment
variable based upon allocated devices (usable with OpenMPI and Melanox).
-- Make it so info options for srun/salloc/sbatch print with just 1 -v instead
of 4.
-- Add "no_backup_scheduling" SchedulerParameter to prevent jobs from being
scheduled when the backup takes over. Jobs can be submitted, modified and
cancelled while the backup is in control.
-- Enable native Slurm backup controller to reside on an external Cray node
when the "no_backup_scheduling" SchedulerParameter is used.
-- Removed TICKET_BASED fairshare. Consider using the FAIR_TREE algorithm.
-- Disable advanced reservation "REPLACE" option on IBM Bluegene systems.
-- Add support for control distribution of tasks across cores (in addition
to existing support for nodes and sockets, (e.g. "block", "cyclic" or
"fcyclic" task distribution at 3 levels in the hardware rather than 2).
-- Create db index on <cluster>_assoc_table.acct. Deleting accounts that didn't
have jobs in the job table could take a long time.
-- The performance of Profiling with HDF5 is improved. In addition, internal
structures are changed to make it easier to add new profile types,
particularly energy sensors. sh5util will continue to work with either
format.
-- Add partition information to sshare output if the --partition option
is specified on the sshare command line.
-- Add sreport -T/--tres option to identify Trackable RESources (TRES) to
report.
-- Display job in sacct when single step's cpus are different from the job
allocation.
-- Add association usage information to "scontrol show cache" command output.
-- MPI/MVAPICH plugin now requires Munge for authentication.
-- job_submit/lua: Add default_qos fields. Add job record qos. Add partition
record allow_qos and qos_char fields.
* Changes in Slurm 15.08.0pre5
==============================
-- Add jobcomp/elasticsearch plugin. Libcurl is required for build. Configure
the server as follows: "JobCompLoc=http://YOUR_ELASTICSEARCH_SERVER:9200".
-- Scancel logic large re-written to better support job arrays.
-- Added a slurm.conf parameter PrologEpilogTimeout to control how long
-- Added TRES (Trackable resources) to track Mem, GRES, license, etc
utilization.
-- Add re-entrant versions of glibc time functions (e.g. localtime) to Slurm
in order to eliminate rare deadlock of slurmstepd fork and exec calls.
-- Constrain kernel memory (if available) in cgroups.
-- Add PrologFlags option of "Contain" to create a proctrack container at
job resource allocation time.
-- Disable the OOM Killer in slurmd and slurmstepd's memory cgroup when using
MemSpecLimit.
* Changes in Slurm 15.08.0pre4
==============================
-- Burst_buffer/cray - Convert logic to use new commands/API names (e.g.
"dws_setup" rather than "bbs_setup").
-- Remove the MinJobAge size limitation. It can now exceed 65533 as it
is represented using an unsigned integer.
-- Verify that all plugin version numbers are identical to the component
attempting to load them. Without this verification, the plugin can reference
Slurm functions in the caller which differ (e.g. the underlying function's
arguments could have changed between Slurm versions).
NOTE: All plugins (except SPANK) must be built against the identical
version of Slurm in order to be used by any Slurm command or daemon. This
should eliminate some very difficult to diagnose problems due to use of old
plugins.
-- Increase the MAX_PACK_MEM_LEN define to avoid PMI2 failure when fencing
with large amount of ranks (to 1GB).
-- Requests by normal user to reset a job priority (even to lower it) will
result in an error saying to change the job's nice value instead.
-- SPANK naming changes: For environment variables set using the
spank_job_control_setenv() function, the values were available in the
slurm_spank_job_prolog() and slurm_spank_job_epilog() functions using
getenv where the name was given a prefix of "SPANK_". That prefix has
been removed for consistency with the environment variables available in
the Prolog and Epilog scripts.
-- Add "TopologyParam" configuration parameter. Optional value of "dragonfly"
is supported.
-- Optimize resource allocation for systems with dragonfly networks.
-- Add "--thread-spec" option to salloc, sbatch and srun commands. This is
the count of threads reserved for system use per node.
-- job_submit/lua: Enable reading and writing job environment variables.
For example: if (job_desc.environment.LANGUAGE == "en_US") then ...
-- Added two new APIs slurm_job_cpus_allocated_str_on_node_id()
and slurm_job_cpus_allocated_str_on_node() to print the CPUs id
allocated to a job.
-- Specialized memory (a node's MemSpecLimit configuration parameter) is not
available for allocation to jobs.
-- Modify scontrol update job to allow jobid specification without
the = sign. 'scontrol update job=123 ...' and 'scontrol update job 123 ...'
are both valid syntax.
-- Archive a month at a time when there are lots of records to archive.
-- Introduce new sbatch option '--kill-on-invalid-dep=yes|no' which allows
users to specify which behavior they want if a job dependency is not
satisfied.
-- Add Slurmdb::qos_get() interface to perl api.
-- If a job fails to start set the requeue reason to be:
job requeued in held state.
-- Implemented a new MPI key,value PMIX_RING() exchange algorithm as
an alternative to PMI2.
Brian Christiansen
committed
-- Remove possible deadlocks in the slurmctld when the slurmdbd is busy
archiving/purging.
-- Add DB_ARCHIVE debug flag for filtering out debug messages in the slurmdbd
when the slurmdbd is archiving/purging.
-- Fix some power_save mode issues: Parsing of SuspendTime in slurm.conf was
bad, powered down nodes would get set non-responding if there was an
in-flight message, and permit nodes to be powered down from any state.
-- Initialize variables in consumable resource plugin to prevent core dump.
* Changes in Slurm 15.08.0pre3
==============================
-- CRAY - addition of acct_gather_energy/cray plugin.
-- Add job credential to "Run Prolog" RPC used with a configuration of
PrologFlags=alloc. This allows the Prolog to be passed identification of
GPUs allocated to the job.
-- Add SLURM_JOB_CONSTAINTS to environment variables available to the Prolog.
-- Added "--mail=stage_out" option to job submission commands to notify user
when burst buffer state out is complete.
-- Require a "Reason" when using scontrol to set a node state to DOWN.
-- Mail notifications on job BEGIN, END and FAIL now apply to a job array as a
whole rather than generating individual email messages for each task in the
job array.
-- task/affinity - Fix memory binding to NUMA with cpusets.
Brian Christiansen
committed
-- Display job's estimated NodeCount based off of partition's configured
resources rather than the whole system's.
-- Add AuthInfo option of "cred_expire=#" to specify the lifetime of a job
step credential. The default value was changed from 1200 to 120 seconds.
-- Set the delay time for job requeue to the job credential lifetime (120
seconds by default). This insures that prolog runs on every node when a
job is requeued. (This change will slow down launch of re-queued jobs).
-- Add AuthInfo option of "cred_expire=#" to specify the lifetime of a job
step credential.
-- Remove srun --max-launch-time option. The option has not been functional
since Slurm version 2.0.
-- Add sockets and cores to TaskPluginParams' autobind option.
-- Added LaunchParameters configuration parameter. Have srun command test
locally for the executable file if LaunchParameters=test_exec or the
environment variable SLURM_TEST_EXEC is set. Without this an invalid
command will generate one error message per task launched.
-- Fix the slurm /etc/init.d script to return 0 upon stopping the
daemons and return 1 in case of failure.
-- Add the ability for a compute node to be allocated to multiple jobs, but
restricted to a single user. Added "--exclusive=user" option to salloc,
sbatch and srun commands. Added "owner" field to node record, visible using
the scontrol and sview commands. Added new partition configuration parameter
"ExclusiveUser=yes|no".
* Changes in Slurm 15.08.0pre2
==============================
-- Add the environment variables SLURM_JOB_ACCOUNT, SLURM_JOB_QOS
and SLURM_JOB_RESERVATION in the batch/srun jobs.
-- Properly enforce partition Shared=YES option. Previously oversubscribing
resources required gang scheduling to be configured.
-- Enable per-partition gang scheduling resource resolution (e.g. the partition
can have SelectTypeParameters=CR_CORE, while the global value is CR_SOCKET).
-- Make it so a newer version of a slurmstepd can talk to an older srun.
Brian Christiansen
committed
allocation. Nodes could have been added while waiting for an allocation.
-- Expanded --cpu-freq parameters to include min-max:governor specifications.
--cpu-freq now supported on salloc and sbatch.
-- Add support for optimized job allocations with respect to SGI Hypercube
topology.
NOTE: Only supported with select/linear plugin.
NOTE: The program contribs/sgi/netloc_to_topology can be used to build
Slurm's topology.conf file.
-- Remove 64k validation of incoming RPC nodelist size. Validated at 64MB
when unpacking.
-- In slurmstepd() add the user primary group if it is not part of the
groups sent from the client.
-- Added BurstBuffer field to advanced reservations.
-- For advanced reservation, replace flag "License_only" with flag "Any_Nodes".
It can be used to indicate the an advanced reservation resources (licenses
and/or burst buffers) can be used with any compute nodes.
-- Allow users to specify the srun --resv-ports as 0 in which case no ports
will be reserved. The default behaviour is to allocate one port per task.
-- Interpret a partition configuration of "Nodes=ALL" in slurm.conf as
including all nodes defined in the cluster.
-- Added new configuration parameters PowerParameters and PowerPlugin.
-- Added power management plugin infrastructure.
-- If job already exceeded one of its QOS/Accounting limits do not
return error if user modifies QOS unrelated job settings.
-- When caching user ids of AllowGroups use both getgrnam_r() and getgrent_r()
then remove eventual duplicate entries.
-- Remove rpm dependency between slurm-pam and slurm-devel.
-- Remove support for the XCPU (cluster management) package.
-- Add Slurmdb::jobs_get() interface to perl api.
-- Performance improvement when sending data from srun to stepds when
processing fencing.
-- Add the feature to specify arbitrary field separator when running
sacct -p or sacct -P. The command line option is --separator.
-- Introduce slurm.conf parameter to use Proportional Set Size (PSS) instead
of RSS to determinate the memory footprint of a job.
Add an slurm.conf option not to kill jobs that is over memory limit.
-- Add job submission command options: --sicp (available for inter-cluster
dependencies) and --power (specify power management options) to salloc,
sbatch, and srun commands.
-- Add DebugFlags option of SICP (inter-cluster option logging).
-- In order to support inter-cluster job dependencies, the MaxJobID
configuration parameter default value has been reduced from 4,294,901,760
to 2,147,418,112 and it's maximum value is now 2,147,463,647.
ANY JOBS WITH A JOB ID ABOVE 2,147,463,647 WILL BE PURGED WHEN SLURM IS
UPGRADED FROM AN OLDER VERSION!
-- Add QOS name to the output of a partition in squeue/scontrol/sview/smap.
* Changes in Slurm 15.08.0pre1
==============================
-- Add sbcast support for file transfer to resources allocated to a job step
rather than a job allocation.
-- Change structures with association in them to assoc to save space.
-- Add support for job dependencies jointed with OR operator (e.g.
"--depend=afterok:123?afternotok:124").
-- Add "--bb" (burst buffer specification) option to salloc, sbatch, and srun.
-- Added configuration parameters BurstBufferParameters and BurstBufferType.
-- Added burst_buffer plugin infrastructure (needs many more functions).
-- Make it so when the fanout logic comes across a node that is down we abandon
the tree to avoid worst case scenarios when the entire branch is down and
we have to try each serially.
-- Add better error reporting of invalid partitions at submission time.
-- Move will-run test for multiple clusters from the sbatch code into the API
so that it can be used with DRMAA.
-- If a non-exclusive allocation requests --hint=nomultithread on a
CR_CORE/SOCKET system lay out tasks correctly.
-- Avoid including unused CPUs in a job's allocation when cores or sockets are
allocated.
-- Added new job state of STOPPED indicating processes have been stopped with a
SIGSTOP (using scancel or sview), but retain its allocated CPUs. Job state
returns to RUNNING when SIGCONT is sent (also using scancel or sview).
-- Added EioTimeout parameter to slurm.conf. It is the number of seconds srun
waits for slurmstepd to close the TCP/IP connection used to relay data
between the user application and srun when the user application terminates.
-- Remove slurmctld/dynalloc plugin as the work was never completed, so it is
not worth the effort of continued support at this time.
-- Remove DynAllocPort configuration parameter.
-- Add advance reservation flag of "replace" that causes allocated resources
to be replaced with idle resources. This maintains a pool of available
resources that maintains a constant size (to the extent possible).
-- Added SchedulerParameters option of "bf_busy_nodes". When selecting
resources for pending jobs to reserve for future execution (i.e. the job
can not be started immediately), then preferentially select nodes that are
in use. This will tend to leave currently idle resources available for
backfilling longer running jobs, but may result in allocations having less
than optimal network topology. This option is currently only supported by
the select/cons_res plugin.
-- Permit "SuspendTime=NONE" as slurm.conf value rather than only a numeric
value to match "scontrol show config" output.
-- Add the 'scontrol show cache' command which displays the associations
in slurmctld.
-- Test more frequently for node boot completion before starting a job.
Provides better responsiveness.
-- Permit PreemptType=qos and PreemptMode=suspend,gang to be used together.
A high-priority QOS job will now oversubscribe resources and gang schedule,
but only if there are insufficient resources for the job to be started
without preemption. NOTE: That with PreemptType=qos, the partition's
Shared=FORCE:# configuration option will permit one job more per resource
to be run than than specified, but only if started by preemption.
-- Remove the CR_ALLOCATE_FULL_SOCKET configuration option. It is now the
default.
-- Fix a race condition in PMI2 when fencing counters can be out of sync.
-- Increase the MAX_PACK_MEM_LEN define to avoid PMI2 failure when fencing
with large amount of ranks.
-- Add QOS option to a partition. This will allow a partition to have
all the limits a QOS has. If a limit is set in both QOS the partition
QOS will override the job's QOS unless the job's QOS has the
OverPartQOS flag set.
-- The task_dist_states variable has been split into "flags" and "base"
components. Added SLURM_DIST_PACK_NODES and SLURM_DIST_NO_PACK_NODES values
to give user greater control over task distribution. The srun --dist options
has been modified to accept a "Pack" and "NoPack" option. These options can
be used to override the CR_PACK_NODE configuration option.
* Changes in Slurm 14.11.12
===========================
-- Correct dependency formatting to print array task ids if set.
-- Fix for configuration of "AuthType=munge" and "AuthInfo=socket=..." with
alternate munge socket path.
-- BGQ - Remove redeclaration of job_read_lock.
-- BGQ - Tighter locks around structures when nodes/cables change state.
-- Fix job array formatting to allow return [0-100:2] display for arrays with
step functions rather than [0,2,4,6,8,...] .
-- Associations - prevent hash table corruption if uid initially unset for
a user, which can cause slurmctld to crash if that user is deleted.
-- Add cast to memory limit calculation to prevent integer overflow for
very large memory values.
-- Fix test cases to have proper int return signature.
* Changes in Slurm 14.11.11
===========================
-- Fix systemd's slurmd service from killing slurmstepds on shutdown.
-- Fix the qstat wrapper when user is removed from the system but still
has running jobs.
-- Log the request to terminate a job at info level if DebugFlags includes
the Steps keyword.
-- Fix potential memory corruption in _slurm_rpc_epilog_complete as well as
_slurm_rpc_complete_job_allocation.
-- Fix incorrectly sized buffer used by jobid2str which will cause buffer
overflow in slurmctld. (Bug 2295.)
* Changes in Slurm 14.11.10
===========================
-- Fix truncation of job reason in squeue.
-- If a node is in DOWN or DRAIN state, leave it unavailable for allocation
when powered down.
-- Update the slurm.conf man page documenting better nohold_on_prolog_fail
variable.
-- Don't trucate task ID information in "squeue --array/-r" or "sview".
-- Fix a bug which caused scontrol to core dump when releasing or
holding a job by name.
-- Fix unit conversion bug in slurmd which caused wrong memory calculation
for cgroups.
-- Fix issue with GRES in steps so that if you have multiple exclusive steps
and you use all the GRES up instead of reporting the configuration isn't
available you hold the requesting step until the GRES is available.
-- Fix slurmdbd backup to use DbdAddr when contacting the primary.
-- Fix to handle arrays with respect to number of jobs submitted. Previously
only 1 job was accounted (against MaxSubmitJob) for when an array was
submitted.
-- Correct counting for job array limits, job count limit underflow possible
when master cancellation of master job record.
-- For pending jobs have sacct print 0 for nnodes instead of the bogus 2.
-- Fix for tracking node state when jobs that have been allocated exclusive
access to nodes (i.e. entire nodes) and later relinquish some nodes. Nodes
would previously appear partly allocated and prevent use by other jobs.
Brian Christiansen
committed
-- Fix updating job in db after extending job's timelimit past partition's
timelimit.
Brian Christiansen
committed
-- Fix srun -I<timeout> from flooding the controller with step create requests.
-- Requeue/hold batch job launch request if job already running (possible if
node went to DOWN state, but jobs remained active).
-- If a job's CPUs/task ratio is increased due to configured MaxMemPerCPU,
then increase it's allocated CPU count in order to enforce CPU limits.
-- Don't mark powered down node as not responding. This could be triggered by
race condition of the node suspend and ping logic.
-- Don't requeue RPC going out from slurmctld to DOWN nodes (can generate
repeating communication errors).
-- Propagate sbatch "--dist=plane=#" option to srun.
-- Fix sacct to not return all jobs if the -j option is given with a trailing
','.
-- Permit job_submit plugin to set a job's priority.
-- Fix issue with sacct, printing 0_0 for array's that had finished in the
database but the start record hadn't made it yet.
-- Fix sacct -j, (nothing but a comma) to not return all jobs.
-- Prevent slurmstepd from core dumping if /proc/<pid>/stat has
unexpected format.
* Changes in Slurm 14.11.9
==========================
-- Correct "sdiag" backfill cycle time calculation if it yields locks. A
microsecond value was being treated as a second value resulting in an
overflow in the calcuation.
-- Fix segfault when updating timelimit on jobarray task.
-- Fix to job array update logic that can result in a task ID of 4294967294.
-- Fix of job array update, previous logic could fail to update some tasks
of a job array for some fields.
-- CRAY - Fix seg fault if a blade is replaced and slurmctld is restarted.
-- Fix plane distribution to allocate in blocks rather than cyclically.
-- squeue - Remove newline from job array ID value printed.
-- squeue - Enable filtering for job state SPECIAL_EXIT.
-- Prevent job array task ID being inappropriately set to NO_VAL.
-- MYSQL - Make it so you don't have to restart the slurmctld
to gain the correct limit when a parent account is root and you
remove a subaccount's limit which exists on the parent account.
-- MYSQL - Close chance of setting the wrong limit on an association
when removing a limit from an association on multiple clusters
at the same time.
-- MYSQL - Fix minor memory leak when modifying an association but no
change was made.
-- srun command line of either --mem or --mem-per-cpu will override both the
SLURM_MEM_PER_CPU and SLURM_MEM_PER_NODE environment variables.
-- Prevent slurmctld abort on update of advanced reservation that contains no
nodes.
Danny Auble
committed
-- ALPS - Revert commit 2c95e2d22 which also removes commit 2e2de6a4 allowing
cray with the SubAllocate option to work as it did with 2.5.
-- Properly parse CPU frequency data on POWER systems.
-- Correct sacct.a man pages describing -i option.
-- Capture salloc/srun information in sdiag statistics.
-- Fix bug in node selection with topology optimization.
-- Don't set distribution when srun requests 0 memory.
Nathan Yee
committed
-- Read in correct number of nodes from SLURM_HOSTFILE when specifying nodes
and --distribution=arbitrary.
-- Fix segfault in Bluegene setups where RebootQOSList is defined in
bluegene.conf and accounting is not setup.
-- MYSQL - Update mod_time when updating a start job record or adding one.
-- MYSQL - Fix issue where if an association id ever changes on at least a
portion of a job array is pending after it's initial start in the
database it could create another row for the remain array instead
of using the already existing row.
-- Fix scheduling anomaly with job arrays submitted to multiple partitions,
jobs could be started out of priority order.
-- If a host has suspened jobs do not reboot it. Reboot only hosts
with no jobs in any state.
-- ALPS - Fix issue when using --exclusive flag on srun to do the correct
thing (-F exclusive) instead of -F share.
-- Fix a bug in the controller which display jobs in CF state as RUNNING.
-- Preserve advanced _core_ reservation when nodes added/removed/resized on
slurmctld restart. Rebuild core_bitmap as needed.
-- Fix for non-standard Munge port location for srun/pmi use.
-- Fix gang scheduling/preemption issue that could cancel job at startup.
-- Fix a bug in squeue which prevented squeue -tPD to print array jobs.
Brian Christiansen
committed
-- Sort job arrays in job queue according to array_task_id when priorities are
equal.
-- Fix segfault in sreport when there was no response from the dbd.
-- ALPS - Fix compile to not link against -ljob and -lexpat with every lib
or binary.
Brian Christiansen
committed
-- Fix testing for CR_Memory when CR_Memory and CR_ONE_TASK_PER_CORE are used
with select/linear.
-- MySQL - Fix minor memory leak if a connection ever goes away whist using it.
-- ALPS - Make it so srun --hint=nomultithread works correctly.
-- Prevent job array task ID from being reported as NO_VAL if last task in the
array gets requeued.
-- Fix some potential deadlock issues when state files don't exist in the
association manager.
-- Correct RebootProgram logic when executed outside of a maintenance
reservation.
-- Requeue job if possible when slurmstepd aborts.
* Changes in Slurm 14.11.8
==========================
-- Eliminate need for user to set user_id on job_update calls.
-- Correct list of unavailable nodes reported in a job's "reason" field when
that job can not start.
-- Map job --mem-per-cpu=0 to --mem=0.
-- Fix squeue -o %m and %d unit conversion to Megabytes.
-- Fix issue with incorrect time calculation in the priority plugin when
a job runs past it's time limit.
-- Prevent users from setting job's partition to an invalid partition.
-- Fix sreport core dump when requesting
'job SizesByAccount grouping=individual'.
-- select/linear: Correct count of CPUs allocated to job on system with
hyperthreads.
Brian Christiansen
committed
-- Fix race condition where last array task might not get updated in the db.
-- CRAY - Remove libpmi from rpm install
-- Fix squeue -o %X output to correctly handle NO_VAL and suffix.
-- When deleting a job from the system set the job_id to 0 to avoid memory
corruption if thread uses the pointer basing validity off the id.
-- Fix issue where sbatch would set ntasks-per-node to 0 making any srun
afterward cause a divide by zero error.
-- switch/cray: Refine logic to set PMI_CRAY_NO_SMP_ENV environment variable.
-- When sacctmgr loads archives with version less than 14.11 set the array
task id to NO_VAL, so sacct can display the job ids correctly.
-- When using memory cgroup if a task uses more memory than requested
the failures are logged into memory.failcnt count file by cgroup
and the user is notified by slurmstepd about it.
-- Fix scheduling inconsistency with GRES bound to specific CPUs.
-- If user belongs to a group which has split entries in /etc/group
search for its username in all groups.
-- Do not consider nodes explicitly powered up as DOWN with reason of "Node
unexpected rebooted".
-- Use correct slurmd spooldir when creating cpu-frequency locks.
-- Note that TICKET_BASED fairshare will be deprecated in the future. Consider
using the FAIR_TREE algorithm instead.
-- Set job's reason to BadConstaints when job can't run on any node.
-- Prevent abort on update of reservation with no nodes (licenses only).
-- Prevent slurmctld from dumping core if job_resrcs is missing in the
job data structure.
-- Fix squeue to print array task ids according to man page when
SLURM_BITSTR_LEN is defined in the environment.
-- In squeue, sort jobs based on array job ID if available.
-- Fix the calculation of job energy by not including the NO_VAL values.
-- Advanced reservation fixes: enable update of bluegene reservation, avoid
abort on multi-core reservations.
-- Set the totalview_stepid to the value of the job step instead of NO_VAL.
-- Fix slurmdbd core dump if the daemon does not have connection with
the database.
-- Display error message when attempting to modify priority of a held job.
-- Backfill scheduler: The configured backfill_interval value (default 30
seconds) is now interpretted as a maximum run time for the backfill
scheduler. Once reached, the scheduler will build a new job queue and
start over, even if not all jobs have been tested.
-- Backfill scheduler now considers OverTimeLimit and KillWait configuration
parameters to estimate when running jobs will exit.
-- Correct task layout with CR_Pack_Node option and more than 1 CPU per task.
-- Fix the scontrol man page describing the release argument.
-- When job QOS is modified, do so before attempting to change partition in
order to validate the partition's Allow/DenyQOS parameter.
* Changes in Slurm 14.11.7
==========================
-- Initialize some variables used with the srun --no-alloc option that may
cause random failures.
-- Add SchedulerParameters option of sched_min_interval that controls the
minimum time interval between any job scheduling action. The default value
is zero (disabled).
-- Change default SchedulerParameters=max_sched_time from 4 seconds to 2.
-- Refactor scancel so that all pending jobs are cancelled before starting
cancellation of running jobs. Otherwise they happen in parallel and the
pending jobs can be scheduled on resources as the running jobs are being
cancelled.
-- ALPS - Add new cray.conf variable NoAPIDSignalOnKill. When set to yes this
will make it so the slurmctld will not signal the apid's in a batch job.
Instead it relies on the rpc coming from the slurmctld to kill the job to
end things correctly.
-- ALPS - Have the slurmstepd running a batch job wait for an ALPS release
before ending the job.
-- Initialize variables in consumable resource plugin to prevent core dump.
-- Fix scancel bug which could return an error on attempt to signal a job step.
-- In slurmctld communication agent, make the thread timeout be the configured
value of MessageTimeout rather than 30 seconds.
-- sshare -U/--Users only flag was used uninitialized.
-- Cray systems, add "plugstack.conf.template" sample SPANK configuration file.
-- BLUEGENE - Set DB2NOEXITLIST when starting the slurmctld daemon to avoid
random crashing in db2 when the slurmctld is exiting.
-- Make full node reservations display correctly the core count instead of
cpu count.
-- Preserve original errno on execve() failure in task plugin.
-- Add SLURM_JOB_NAME env variable to an salloc's environment.
-- Overwrite SLURM_JOB_NAME in an srun when it gets an allocation.
-- Make sure each job has a wckey if that is something that is tracked.
-- Make sure old step data is cleared when job is requeued.
-- Load libtinfo as needed when building ncurses tools.
-- Fix small memory leak in backup controller.
-- Fix segfault when backup controller takes control for second time.
-- Cray - Fix backup controller running native Slurm.
-- Provide prototypes for init_setproctitle()/fini_setproctitle on NetBSD.
-- Add configuration test to find out the full path to su command.
-- preempt/job_prio plugin: Fix for possible infinite loop when identifying
preemptable jobs.
-- preempt/job_prio plugin: Implement the concept of Warm-up Time here. Use
the QoS GraceTime as the amount of time to wait before preempting.
Basically, skip preemption if your time is not up.
-- Make srun wait KillWait time when a task is cancelled.
-- switch/cray: Revert logic added to 14.11.6 that set "PMI_CRAY_NO_SMP_ENV=1"
if CR_PACK_NODES is configured.
* Changes in Slurm 14.11.6
==========================
-- If SchedulerParameters value of bf_min_age_reserve is configured, then
a newly submitted job can start immediately even if there is a higher
priority non-runnable job which has been waiting for less time than
bf_min_age_reserve.
-- qsub wrapper modified to export "all" with -V option
-- RequeueExit and RequeueExitHold configuration parameters modified to accept
numeric ranges. For example "RequeueExit=1,2,3,4" and "RequeueExit=1-4" are
equivalent.
-- Correct the job array specification parser to accept brackets in job array
expression (e.g. "123_[4,7-9]").
-- Fix for misleading job submit failure errors sent to users. Previous error
could indicate why specific nodes could not be used (e.g. too small memory)
when other nodes could be used, but were not for another reason.
-- Fix squeue --array to display correctly the array elements when the
% separator is specified at the array submission time.
-- Fix priority from not being calculated correctly due to memory issues.
-- Fix a transient pending reason 'JobId=job_id has invalid QOS'.
-- A non-administrator change to job priority will not be persistent except
for holding the job. User's wanting to change a job priority on a persistent
basis should reset it's "nice" value.
-- Print buffer sizes as unsigned values when failed to pack messages.
Brian Christiansen
committed
-- Fix race condition where sprio would print factors without weights applied.
-- Document the sacct option JobIDRaw which for arrays prints the jobid instead
of the arrayTaskId.
-- Allow users to modify MinCPUsNode, MinMemoryNode and MinTmpDiskNode of
their own jobs.
-- Increase the jobid print field in SQUEUE_FORMAT in
opt_modulefiles_slurm.in.
-- Enable compiling without optimizations and with debugging symbols by
default. Disable this by configuring with --disable-debug.
-- job_submit/lua plugin: Add mail_type and mail_user fields.
-- Use standard statvfs(2) syscall if available, in preference to
non-standard statfs.
-- Add a new option -U/--Users to sshare to display only users
information, parent and ancestors are not printed.
-- Purge 50000 records at a time so that locks can released periodically.
-- Fix potentially uninitialized variables
-- ALPS - Fix issue where a frontend node could become unresponsive and never
added back into the system.
-- Gate epilog complete messages as done with other messages
-- If we have more than a certain number of agents (50) wait longer when gating
rpcs.
-- FrontEnd - ping non-responding or down nodes.
-- switch/cray: If CR_PACK_NODES is configured, then set the environment
variable "PMI_CRAY_NO_SMP_ENV=1"
-- Fix invalid memory reference in SlurmDBD when putting a node up.
-- Allow opening of plugstack.conf even when a symlink.
-- Fix scontrol reboot so that rebooted nodes will not be set down with reason
'Node xyz unexpectedly rebooted' but will be correctly put back to service.
-- CRAY - Throttle the post NHC operations as to not hog the job write lock
if many steps/jobs finish at once.
-- Disable changes to GRES count while jobs are running on the node.
-- CRAY - Fix issue with scontrol reconfig.
-- slurmd: Remove wrong reporting of "Error reading step ... memory limit".
The logic was treating success as an error.
-- Eliminate "Node ping apparently hung" error messages.
-- Fix average CPU frequency calculation.
-- When allocating resources with resolution of sockets, charge the job for all
CPUs on allocated sockets rather than just the CPUs on used cores.
-- Prevent slurmdbd error if cluster added or removed while rollup in progress.
Removing a cluster can cause slurmdbd to abort. Adding a cluster can cause
the slurmdbd rollup to hang.
-- sview - When right clicking on a tab make sure we don't display the page
list, but only the column list.
-- FRONTEND - If doing a clean start make sure the nodes are brought up in the
database.
-- MySQL - Fix issue when using the TrackSlurmctldDown and nodes are down at
the same time, don't double bill the down time.
-- MySQL - Various memory leak fixes.
-- Fix node manager logic to keep unexpectedly rebooted node in state
NODE_STATE_DOWN even if already down when rebooted.
-- Fix for array jobs submitted to multiple partitions not starting.
-- CRAY - Enable ALPs mpp compatibility code in sbatch for native Slurm.
-- ALPS - Move basil_inventory to less confusing function.
-- Add SchedulerParameters option of "sched_max_job_start=" to limit the
number of jobs that can be started in any single execution of the main
scheduling logic.
-- Fixed compiler warnings generated by gcc version >= 4.6.
-- sbatch to stop parsing script for "#SBATCH" directives after first command,
which matches the documentation.
-- Overwrite the SLURM_JOB_NAME in sbatch if already exist in the environment
and use the one specified on the command line --job-name.
-- Remove xmalloc_nz from unpack functions. If the unpack ever failed the
free afterwards would not have zeroed out memory on the variables that
didn't get unpacked.
-- Improve database interaction from controller.
-- Fix for data shift when loading job archives.
-- ALPS - Added new SchedulerParameters=inventory_interval to specify how
often an inventory request is handled.
-- ALPS - Don't run a release on a reservation on the slurmctld for a batch
job. This is already handled on the stepd when the script finishes.
* Changes in Slurm 14.11.5
==========================
-- Correct the squeue command taking into account that a node can
have NULL name if it is not in DNS but still in slurm.conf.
-- Fix slurmdbd regression which would cause a segfault when a node is set
down with no reason.
-- BGQ - Fix issue with job arrays not being handled correctly
in the runjob_mux plugin.
-- Print FAIR_TREE, if configured, in "scontrol show config" output for
PriorityFlags.
-- Add SLURM_JOB_GPUS environment variable to those available in the Prolog.
-- Load lua-5.2 library if using lua5.2 for lua job submit plugin.
-- GRES logic: Prevent bad node_offset due to not preserving no_consume flag.
-- Fix wrong variables used in the wrapper functions needed for systems that
don't support strong_alias
-- Fix code for apple computers SOL_TCP is not defined
-- Cray/BASIL - Check for mysql credentials in /root/.my.cnf.
Brian Christiansen
committed
-- Fix sprio showing wrong priority for job arrays until priority is
recalculated.
-- Account to batch step all CPUs that are allocated to a job not
just one since the batch step has access to all CPUs like other steps.
Brian Christiansen
committed
-- Fix job getting EligibleTime set before meeting dependency requirements.
-- Correct the initialization of QOS MinCPUs per job limit.
-- Set the debug level of information messages in cgroup plugin to debug2.
-- For job running under a debugger, if the exec of the task fails, then
cancel its I/O and abort immediately rather than waiting 60 seconds for
I/O timeout.
-- Fix associations not getting default qos set until after a restart.
-- Set the value of total_cpus not to be zero before invoking
acct_policy_job_runnable_post_select.
-- MySQL - When requesting cluster resources, only return resources for the
cluster(s) requested.
-- Add TaskPluginParam=autobind=threads option to set a default binding in the
case that "auto binding" doesn't find a match.
-- Introduce a new SchedulerParameters variable nohold_on_prolog_fail.
If configured don't requeue jobs on hold is a Prolog fails.
-- Make it so sched_params isn't read over and over when an epilog complete
message comes in
-- Fix squeue -L <licenses> not filtering out jobs with licenses.
-- Changed the implementation of xcpuinfo_abs_to_mac() be identical
_abs_to_mac() to fix CPUs allocation using cpuset cgroup.
-- Improve the explanation of the unbuffered feature in the
srun man page.
-- Make taskplugin=cgroup work for core spec. needed to have task/cgroup
before.
-- Fix reports not using the month usage table.
-- BGQ - Sanity check given for translating small blocks into slurm bg_records.
-- Fix bug preventing the requeue/hold or requeue/special_exit of job from the
completing state.
-- Cray - Fix for launching batch step within an existing job allocation.
-- Cray - Add ALPS_APP_ID_ENV environment variable.
-- Increase maximum MaxArraySize configuration parameter value from 1,000,001
to 4,000,001.
-- Added new SchedulerParameters value of bf_min_age_reserve. The backfill
scheduler will not reserve resources for pending jobs until they have
been pending for at least the specified number of seconds. This can be
valuable if jobs lack time limits or all time limits have the same value.
-- Fix support for --mem=0 (all memory of a node) with select/cons_res plugin.
-- Fix bug that can permit someone to kill job array belonging to another user.
-- Don't set the default partition on a license only reservation.
-- Show a NodeCnt=0, instead of NO_VAL, in "scontrol show res" for a license
only reservation.
-- BGQ - When using static small blocks make sure when clearing the job the
block is set up to it's original state.
-- Start job allocation using lowest numbered sockets for block task
distribution for consistency with cyclic distribution.
* Changes in Slurm 14.11.4
==========================
-- Make sure assoc_mgr locks are initialized correctly.
-- Correct check of enforcement when filling in an association.
-- Make sacctmgr print out classification correctly for clusters.
-- Add array_task_str to the perlapi job info.
-- Fix for slurmctld abort with GRES types configured and no CPU binding.
-- Fix for GRES scheduling where count > 1 per topology type (or GRES types).
-- Make CR_ONE_TASK_PER_CORE work correctly with task/affinity.
-- job_submit/pbs - Fix possible deadlock.
-- job_submit/lua - Add "alloc_node" to job information available.
-- Fix memory leak in mysql accounting when usage rollup happens.
-- If users specify ALL together with other variables using the
--export sbatch/srun command line option, propagate the users'
environ to the execution side.
-- Fix job array scheduling anomaly that can stop scheduling of valid tasks.
-- Fix perl api tests for libslurmdb to work correctly.
-- Remove some misleading logs related to non-consumable GRES.
-- Allow --ignore-pbs to take effect when read as an #SBATCH argument.
Brian Christiansen
committed
-- Fix Slurmdb::clusters_get() in perl api from not returning information.
-- Fix TaskPluginParam=Cpusets from logging error message about not being able
to remove cpuset dir which was already removed by the release_agent.
-- Fix the file name substitution for job stderr when %A, %a %j and %u
are specified.
-- Remove minor warning when compiling slurmstepd.
-- Fix database resources so they can add new clusters to them after they have
initially been added.
-- Use the slurm_getpwuid_r wrapper of getpwuid_r to handle possible
interrupts.
-- Correct the scontrol man page and command listing which node states can
be set by the command.
-- Stop sacct from printing non-existent stat information for
Front End systems.
-- Correct srun and acct_gather.conf man pages, mention Filesystem instead
of Lustre.
-- When a job using multiple partition starts send to slurmdbd only
the partition in which the job runs.
-- ALPS - Fix depth for MemoryAllocation in BASIL with CLE 5.2.3.
-- Fix assoc_mgr hash to deal with users that don't have a uid yet when making
reservations.
-- When a job uses multiple partition set the environment variable
SLURM_JOB_PARTITION to be the one in which the job started.
-- Print spurious message about the absence of cgroup.conf at log level debug2
instead of info.
-- Enable CUDA v7.0+ use with a Slurm configuration of TaskPlugin=task/cgroup
ConstrainDevices=yes (in cgroup.conf). With that configuration
CUDA_VISIBLE_DEVICES will start at 0 rather than the device number.
-- Fix job array logic that can cause slurmctld to abort.
-- Report job "shared" field properly in scontrol, squeue, and sview.
-- If a job is requeued because of RequeueExit or RequeueExitHold sent event
REQUEUED to slurmdbd.
-- Fix build if hwloc is in non-standard location.
-- Fix slurmctld job recovery logic which could cause the last task in a job
array to be lost.
-- Fix slurmctld initialization problem which could cause requeue of the last
task in a job array to fail if executed prior to the slurmctld loading
the maximum size of a job array into a variable in the job_mgr.c module.
-- Fix fatal in controller when deleting a user association of a user which
Brian Christiansen
committed
had been previously removed from the system.
-- MySQL - If a node state and reason are the same on a node state change
don't insert a new row in the event table.
Brian Christiansen
committed
-- Fix issue with "sreport cluster AccountUtilizationByUser" when using
PrivateData=users.
-- Fix perlapi tests for libslurm perl module.
-- MySQL - Fix potential issue when PrivateData=Usage and a normal user
runs certain sreport reports.
* Changes in Slurm 14.11.3
==========================
-- Prevent vestigial job record when canceling a pending job array record.
-- Fix job array hash table bug, could result in slurmctld infinite loop or
invalid memory reference.
-- In srun honor ntasks_per_node before looking at cpu count when the user
doesn't request a number of tasks.
-- Fix ghost job when submitting job after all jobids are exhausted.
-- MySQL - Enhanced coordinator security checks.
-- Fix for task/affinity if an admin configures a node for having threads
but then sets CPUs to only represent the number of cores on the node.
-- Make it so previous versions of salloc/srun work with newer versions
of Slurm daemons.
-- Avoid delay on commit for PMI rank 0 to improve performance with some
MPI implementations.
-- auth/munge - Correct logic to read old format AccountingStoragePass.
-- Reset node "RESERVED" state as appropriate when deleting a maintenance
reservation.
-- Prevent a job manually suspended from being resumed by gang scheduler once
free resources are available.
-- Prevent invalid job array task ID value if a task is started using gang
scheduling.
-- Fix documentation bugs in slurm.conf.5. DenyAccount should be DenyAccounts.
-- For backward compatibility with older versions of OMPI not compiled
with --with-pmi restore the SLURM_STEP_RESV_PORTS in the job environment.
-- Update the html documentation describing the integration with openmpi.
-- Fix sacct when searching by nodelist.
-- Fix cosmetic info statements when dealing with a job array task instead of
a normal job.
-- Correct the sbatch pbs parser to process -j.
-- BGQ - Put print statement under a DebugFlag. This was just an oversight.
-- BLUEGENE - Remove check that would erroneously remove the CONFIGURING
flag from a job while the job is waiting for a block to boot.
-- Fix segfault in slurmstepd when job exceeded memory limit.
-- Fix race condition that could start a job that is dependent upon a job array
before all tasks of that job array complete.
* Changes in Slurm 14.11.2
==========================
-- Fix issue with association hash not getting the correct index which
could result in seg fault.
-- Avoid huge malloc if GRES configured with "Type" and huge "Count".
-- Fix jobs from starting in overlapping reservations that won't finish before
a "maint" reservation begins.
-- When node gets drained while in state mixed display its status as draining
in sinfo output.
-- Allow priority/multifactor to work with sched/wiki(2) if all priorities
have no weight. This allows for association and QOS decay limits to work.
-- Fix "squeue --start" to override SQUEUE_FORMAT env variable.
Brian Christiansen
committed
-- Fix scancel to be able to cancel multiple jobs that are space delimited.
-- Log Cray MPI job calling exit() without mpi_fini(), but do not treat it as
a fatal error. This partially reverts logic added in version 14.03.9.
-- sview - Fix displaying of suspended steps elapsed times.
-- Increase number of messages that get cached before throwing them away
when the DBD is down.
-- Fix jobs from starting in overlapping reservations that won't finish before
a "maint" reservation begins.
-- Restore GRES functionality with select/linear plugin. It was broken in
version 14.03.10.
-- Fix bug with GRES having multiple types that can cause slurmctld abort.
Brian Christiansen
committed
-- Fix squeue issue with not recognizing "localhost" in --nodelist option.
-- Make sure the bitstrings for a partitions Allow/DenyQOS are up to date
when running from cache.
-- Add smap support for job arrays and larger job ID values.
-- Fix possible race condition when attempting to use QOS on a system running
accounting_storage/filetxt.
-- Fix issue with accounting_storage/filetxt and job arrays not being printed
correctly.
-- In proctrack/linuxproc and proctrack/pgid, check the result of strtol()
for error condition rather than errno, which might have a vestigial error
code.
-- Improve information recording for jobs deferred due to advanced
reservation.
-- Exports eio_new_initial_obj to the plugins and initialize kvs_seq on
mpi/pmi2 setup to support launching.
* Changes in Slurm 14.11.1
==========================
-- Get libs correct when doing the xtree/xhash make check.
-- Update xhash/tree make check to work correctly with current code.
-- Remove the reference 'experimental' for the jobacct_gather/cgroup
plugin.
-- Add QOS manipulation examples to the qos.html documentation page.
-- If 'squeue -w node_name' specifies an unknown host name print
an error message and return 1.
-- Fix race condition in job_submit plugin logic that could cause slurmctld to
deadlock.
-- Job wait reason of "ReqNodeNotAvail" expanded to identify unavailable nodes
(e.g. "ReqNodeNotAvail(Unavailable:tux[3-6])").
* Changes in Slurm 14.11.0
==========================
-- ALPS - Fix issue with core_spec warning.
-- Allow multiple partitions to be specified in sinfo -p.
-- Install the service files in /usr/lib/systemd/system.
-- MYSQL - Add id_array_job and id_resv keys to $CLUSTER_job_table. THIS
COULD TAKE A WHILE TO CREATE THE KEYS SO BE PATIENT.
-- CRAY - Resize bitmaps on a restart and find we have more blades
than before.
-- Add new eio API function for removing unused connections.
-- ALPS - Fix issue where batch allocations weren't correctly confirmed or
released.
-- Define DEFAULT_MAX_TASKS_PER_NODE based on MAX_TASKS_PER_NODE from
slurm.h as per documentation.
-- Update the FAQ about relocating slurmctld.
-- In the memory cgroup enable memory.use_hierarchy in the cgroup root.
-- Add SLURM_CLUSTER_NAME to job environment.
* Changes in Slurm 14.11.0rc3
=============================
-- Allow envs to override autotools binaries in autogen.sh
-- Added system services files.
-- If the jobs pends with DependencyNeverSatisfied keep it pending even after
the job which it was depending upon was cleaned.
-- Let operators (in addition to user root and SlurmUser) see job script for
other user's jobs.
-- Perl API modified to return node state of MIXED rather than ALLOCATED if
only some CPUs allocated.
-- Double Munge connect retry timeout from 1 to 2 seconds.
-- sview - Remove unneeded code that was resolved globally in commit
98e24b0dedc.
-- Collect and report the accounting of the batch step and its children.
-- Add configure checks for faccessat and eaccess, and make use of one of
them if available.
-- Make configure --enable-developer also set --enable-debug
-- Introduce a SchedulerParameters variable kill_invalid_depend, if set
then jobs pending with invalid dependency are going to be terminated.
-- Move spank_user_task() call in slurmstepd after the task_g_pre_launch()
so that the task affinity information is available to spank.
-- Make /etc/init.d/slurm script return value 3 when the daemon is
not running. This is required by Linux Standard Base Core
Specification 3.1
* Changes in Slurm 14.11.0rc2
=============================
-- Logs for jobs which are explicitly requeued will say so rather than saying
that a node in their allocation failed.
-- Updated the documentation about the remote licenses served by
the Slurm database.
-- Insure that slurm_spank_exit() is only called once from srun.
-- Change the signature of net_set_low_water() to use 4 bytes instead of 8.
-- Export working_cluster_rec in libslurmdb.so as well as move some function
definitions needed for drmaa.
-- If using cons_res or serial cause a fatal in the plugin instead of causing
the SelectTypeParameters to magically set to CR_CPU.
-- Enhance task/affinity auto binding to consider tasks * cpus-per-task.
-- Fix regression the priority/multifactor which would cause memory corruption.
Issue is only in rc1.
-- Add PrivateData value of "cloud". If set, powered down nodes in the cloud
will be visible.
-- Sched/backfill - Eliminate clearing start_time of running jobs.
-- Fix various backwards compatibility issues.
-- If failed to launch a batch job, requeue it in hold.
* Changes in Slurm 14.11.0rc1
=============================
-- When using cgroup name the batch step as step_batch instead of
batch_4294967294
-- Changed LEVEL_BASED priority to be "Fair_Tree"
-- BGQ - Add cnode based reservations.
-- Alongside totalview_jobid implement totalview_stepid available
to sattach.
-- Add ability to include other files in slurm.conf based upon the ClusterName.
-- Add reservation information in the sacct and sreport output.
-- Add job priority calculation check for overflow and fix memory leak.
-- Add SchedulerParameters option of pack_serial_at_end to put serial jobs at
the end of the available nodes rather than using a best fit algorithm.
-- Allow regular users to view default sinfo output when
privatedata=reservations is set.
-- PrivateData=reservation modified to permit users to view the reservations
which they have access to (rather then preventing them from seeing ANY
reservation).
-- job_submit/lua: Fix job_desc set field logic
* Changes in Slurm 14.11.0pre5
==============================
-- Fix sbatch --export=ALL, it was treated by srun as a request to explicitly
export only the environment variable named "ALL".
-- Improve scheduling of jobs in reservations that overlap other reservations.
-- Modify sgather to make global file systems easier to configure.
-- Added sacctmgr reconfig to reread the slurmdbd.conf in the slurmdbd.
-- Modify scontrol job operations to accept comma delimited list of job IDs.
Applies to job update, hold, release, suspend, resume, requeue, and
requeuehold operations.
-- Refactor job_submit/lua interface. LUA FUNCTIONS NEED TO CHANGE! The
lua script no longer needs to explicitly load meta-tables, but information
is available directly using names slurm.reservations, slurm.jobs,
slurm.log_info, etc. Also, the job_submit.lua script is reloaded when
updated without restarting the slurmctld daemon.
-- Allow users to specify --resv_ports to have value 0.
-- Cray MPMD (Multiple-Program Multiple-Data) support completed.
-- Added ability for "scontrol update" to references jobs by JobName (and
filtered optionally by UserID).
-- Add support for an advanced reservation start time that remains constant
relative to the current time. This can be used to prevent the starting of
longer running jobs on select nodes for maintenance purpose. See the
reservation flag "TIME_FLOAT" for more information.
-- Enlarge the jobid field to 18 characters in squeue output.
-- Added "scontrol write config" option to save a copy of the current
configuration in a file containing a time stamp.
-- Eliminate native Cray specific port management. Native Cray systems must
now use the MpiParams configuration parameter to specify ports to be used
for commmunications. When upgrading Native Cray systems from version 14.03,
all running jobs should be killed and the switch_cray_state file (in
SaveStateLocation of the nodes where the slurmctld daemon runs) must be
explicitly deleted.
* Changes in Slurm 14.11.0pre4
==============================
-- Added job array data structure and removed 64k array size restriction.
-- Added SchedulerParameters options of bf_max_job_array_resv to control how
many tasks of a job array should have resources reserved for them.
-- Added more validity checking of incoming job submit requests.
-- Added srun --export option to set/export specific environment variables.
-- Scontrol modified to print separate error messages for job arrays with
different exit codes on the different tasks of the job array. Applies to
job suspend and resume operations.
-- Fix race condition in CPU frequency set with job preemption.
-- Always call select plugin on step termination, even if the job is also
complete.
-- Srun executable names beginning with "." will be resolved based upon the
working directory and path on the compute node rather than the submit node.
-- Add node state string suffix of "$" to identify nodes in maintenance
reservation or scheduled for reboot. This applies to scontrol, sinfo,
and sview commands.
-- Enable scontrol to clear a nodes's scheduled reboot by setting its state
to "RESUME".
-- As per sbatch and srun documentation when the --signal option is used
signal only the steps and unless, in the case, of a batch job B is
specified in which case signal only the batch script.
-- Modify AuthInfo configuration parameter to accept credential lifetime
option.
-- Modify crypto/munge plugin to use socket and timeout specified in AuthInfo.
-- If we have a state for a step on completion put that in the database
instead of guessing off the exit_code.
-- Added squeue -P/--priority option that can be used to display pending jobs
in the same order as used by the Slurm scheduler even if jobs are submitted
to multiple partitions (job is reported once per usable partition).
-- Improve the pending reason description for various QOS limits. For each
QOS limit that causes a job to be pending print its specific reason.
For example if job pends because of GrpCpus the squeue command will
print QOSGrpCpuLimit as pending reason.
-- sched/backfill - Set expected start time of job submitted to multiple
partitions to the earliest start time on any of the partitions.
-- Introduce a MAX_BATCH_REQUEUE define that indicates how many times a job
can be requeued upon prolog failure. When the number is reached the job
is put on hold with reason JobHoldMaxRequeue.
-- Add sbatch job array option to limit the number of simultaneously running
tasks from a job array (e.g. "--array=0-15%4").
-- Implemented a new QOS limit MinCPUs. Users running under a QOS must
request a minimum number of CPUs which is at least MinCPUs otherwise
their job will pend.
-- Introduced a new pending reason WAIT_QOS_MIN_CPUS to reflect the new QOS
limit.
-- Job array dependency based upon state is now dependent upon the state of
the array as a whole (e.g. afterok requires ALL tasks to complete
sucessfully, afternotok is true if ANY tasks does not complete successfully,
and after requires all tasks to at least be started).
-- The srun -u/--unbuffered options set the stdout of the task launched
by srun to be line buffered.
-- The srun options -/--label and -u/--unbuffered can be specified together.
This limitation has been removed.
-- Provide sacct display of gres accounting information per job.
-- Change the node status size from uin16_t to uint32_t.
* Changes in Slurm 14.11.0pre3
==============================
-- Move xcpuinfo.[c|h] to the slurmd since it isn't needed anywhere else
and will avoid the need for all the daemons to link to libhwloc.
-- Add memory test to job_submit/partition plugin.
-- Added new internal Slurm functions xmalloc_nz() and xrealloc_nz(), which do
not initialize the allocated memory to zero for improved performance.
-- Modify hostlist function to dynamically allocate buffer space for improved
performance.
-- In the job_submit plugin: Remove all slurmctld locks prior to job_submit()
being called for improved performance. If any slurmctld data structures are
read or modified, add locks directly in the plugin.
-- Added PriorityFlag LEVEL_BASED described in doc/html/level_based.shtml
-- If Fairshare=parent is set on an account, that account's children will be
effectively reparented for fairshare calculations to the first parent of
their parent that is not Fairshare=parent. Limits remain the same,
only it's fairshare value is affected.
* Changes in Slurm 14.11.0pre2
==============================
-- Added AllowSpecResourcesUsage configuration parameter in slurm.conf. This
allows jobs to use specialized resources on nodes allocated to them if the
job designates --core-spec=0.
-- Add new SchedulerParameters option of build_queue_timeout to throttle how
much time can be consumed building the job queue for scheduling.
-- Added HealthCheckNodeState option of "cycle" to cycle through the compute
nodes over the course of HealthCheckInterval rather than running all at
the same time.
-- Add job "reboot" option for Linux clusters. This invokes the configured
RebootProgram to reboot nodes allocated to a job before it begins execution.
-- Added squeue -O/--Format option that makes all job and step fields available
for printing.
-- Improve database slurmctld entry speed dramatically.
-- Add "CPUs" count to output of "scontrol show step".
-- scancel -b signals only the batch step neither any other step nor any
children of the shell script.
-- MySQL - enforce NO_ENGINE_SUBSTITUTION
-- Added CpuFreqDef configuration parameter in slurm.conf to specify the
default CPU frequency and governor to be set at job end.
-- Added support for job email triggers: TIME_LIMIT, TIME_LIMIT_90 (reached
90% of time limit), TIME_LIMIT_80 (reached 80% of time limit), and
TIME_LIMIT_50 (reached 50% of time limit). Applies to salloc, sbatch and
srun commands.
-- In slurm.conf add the parameter SrunPortRange=min-max. If this is configured
then srun will use its dynamic ports only from the configured range.
-- Make debug_flags 64 bit to handle more flags.
* Changes in Slurm 14.11.0pre1
==============================
-- Modify etc/cgroup.release_common.example to set specify full path to the
scontrol command. Also find cgroup mount point by reading cgroup.conf file.
-- Improve qsub wrapper support for passing environment variables.
-- Modify sdiag to report Slurm RPC traffic by user, type, count and time
consumed.
-- In select plugins, stop triggering extra logging based upon the debug flag
-- Added SchedulerParameters options of bf_yield_interval and bf_yield_sleep
to control how frequently and for how long the backfill scheduler will
relinquish its locks.
-- To support larger numbers of jobs when the StateSaveDirectory is on a
file system that supports a limited number of files in a directory, add a
subdirectory called "hash.#" based upon the last digit of the job ID.
-- More gracefully handle missing batch script file. Just kill the job and do
not drain the compute node.
-- Add support for allocation of GRES by model type for heterogenous systems
(e.g. request a Kepler GPU, a Tesla GPU, or a GPU of any type).
-- Record and enable display of nodes anticipated to be used for pending jobs.
-- Modify squeue --start option to print the nodes expected to be used for
pending job (in addition to expected start time, etc.).
-- Add association hash to the assoc_mgr.
-- Better logic to handle resized jobs when the DBD is down.
-- Introduce MemLimitEnforce yes|no in slurm.conf. If set no Slurm will
not terminate jobs if they exceed requested memory.
-- Add support for non-consumable generic resources for resources that are
limited, but can be shared between jobs.
-- Introduce 5 new Slurm errors in slurm_errno.h related to job to better
-- Modify scontrol to print error message for each array task when updating
the entire array.
-- Added gres_drain and gres_used fields to node_info_t.
-- Added PriorityParameters configuration parameter in slurm.conf.
-- Introduce automatic job requeue policy based on exit value. See RequeueExit
and RequeueExitHold descriptions in slurm.conf man page.
-- Modify slurmd to cache launched job IDs for more responsive job suspend and
gang scheduling.
-- Permit jobs steps full control over cpu_bind options if specialized cores
are included in the job allocation.
-- Added ChosLoc configuration parameter to specifiy the pathname of the
Chroot OS tool.
-- Sent SIGCONT/SIGTERM when a job is selected for preemption with GraceTime
configured rather than waiting for GraceTime to be reached before notifying
the job.
-- Do not resume a job with specialized cores on a node running another job
with specialized cores (only one can run at a time).
-- Add specialized core count to job suspend/resume calls.
-- task/affinity and task/cgroup - Correct specialized core task binding with
user supplied invalid CPU mask or map.
-- Add srun --cpu-freq options to set the CPU governor (OnDemand, Performance,
PowerSave or UserSpace).
-- Add support for a job step's CPU governor and/or frequency to be reset on
suspend/resume (or gang scheduling). The default for an idle CPU will now
be "ondemand" rather than "userspace" with the lowest frequency (to recover
from hard slurmd failures and support gang scheduling).
-- Added PriorityFlags option of Calulate_Running to continue recalculating
the priority of running jobs.
-- Replace round-robin front-end node selection with least-loaded algorithm.
-- CRAY - Improve support of XC30 systems when running natively.
-- Add new node configuration parameters CoreSpecCount, CPUSpecList and
MemSpecLimit which support the reservation of resources for system use
with Linux cgroup.
-- Add child_forked() function to the slurm_acct_gather_profile plugin to
close open files, leaving application with no extra open file descriptors.
-- Cray/ALPS system - Enable backup controller to run outside of the Cray to
accept new job submissions and most other operations on the pending jobs.
-- Have sacct print job and task array id's for job arrays.
-- If <sys/prctl.h> is present name major threads in slurmctld, for
example backfill
thread: slurmctld_bckfl, the rpc manager: slurmctld_rpcmg etc.
The name can be seen for example using top -H.
-- Provide more precise error message when job allocation can not be satisfied
(e.g. memory, disk, cpu count, etc. rather than just "node configuration
not available").
-- Create a new DebugFlags named TraceJobs in slurm.conf to print detailed
information about jobs in slurmctld. The information include job ids, state
and node count.
-- When a job dependency can never be satisfied do not cancel the job but keep
pending with reason WAIT_DEP_INVALID (DependencyNeverSatisfied).
* Changes in Slurm 14.03.12
===========================
-- Make it so previous versions of salloc/srun work with newer versions
of Slurm daemons.
-- Avoid delay on commit for PMI rank 0 to improve performance with some
MPI implementations.
-- Correct the sbatch pbs parser to process -j.
-- Squeue modified to not merge tasks of a job array if their wait reasons
differ.
-- Use the slurm_getpwuid_r wrapper of getpwuid_r to handle possible
interrupts.
-- Allow --ignore-pbs to take effect when read as an #SBATCH argument.
-- Do not launch step if job killed while the prolog was running.
* Changes in Slurm 14.03.11
===========================
-- ALPS - Fix depth for Memory items in BASIL with CLE 5.2
(changed starting in 5.2.3).
-- ALPS - Fix issue when tracking memory on a PerNode basis instead of
PerCPU.
-- Modify assoc_mgr_fill_in_qos() to allow for a flag to know if the QOS read
lock was locked outside of the function or not.
-- Give even better estimates on pending node count if no node count
is requested.
-- Fix jobcomp/mysql plugin for MariaDB 10+/Mysql 5.6+ to work with reserved
work "partition".
-- If requested (scontrol reboot node_name) reboot a node even if it has
an maintenance reservation that is not active yet.
-- Fix issue where exclusive allocations wouldn't lay tasks out correctly
with CR_PACK_NODES.
-- Do not requeue a batch job from slurmd daemon if it is killed while in
the process of being launched (a race condition introduced in v14.03.9).
-- Do not let srun overwrite SLURM_JOB_NUM_NODES if already in an allocation.
Brian Christiansen
committed
-- Prevent a job's end_time from being too small after a basil reservation
error.
Brian Christiansen
committed
-- Fix sbatch --ntasks-per-core option from setting invalid
SLURM_NTASKS_PER_CORE environment value.
-- Prevent scancel abort when no job satisfies filter options.
-- ALPS - Fix --ntasks-per-core option on multiple nodes.
-- Double max string that Slurm can pack from 16MB to 32MB to support
larger MPI2 configurations.
-- Log Cray MPI job calling exit() without mpi_fini(), but do not treat it as
a fatal error. This partially reverts logic added in version 14.03.9.
-- sview - Fix displaying of suspended steps elapsed times.
-- Increase number of messages that get cached before throwing them away
when the DBD is down.
Brian Christiansen
committed
-- Fix jobs from starting in overlapping reservations that won't finish before
a "maint" reservation begins.
-- Fix "squeue --start" to override SQUEUE_FORMAT env variable.
-- Restore GRES functionality with select/linear plugin. It was broken in
version 14.03.10.
-- Fix possible race condition when attempting to use QOS on a system running
accounting_storage/filetxt.
-- Sanity check for Correct QOS on startup.
* Changes in Slurm 14.03.10
===========================
-- Fix a few sacctmgr error messages.
-- Treat non-zero SlurmSchedLogLevel without SlurmSchedLogFile as a fatal
error.
-- Correct sched_config.html documentation SchedulingParameters
should be SchedulerParameters.
-- When using gres and cgroup ConstrainDevices set correct access
permission for the batch step.
-- Fix minor memory leak in jobcomp/mysql on slurmctld reconfig.
-- Fix bug that prevented preservation of a job's GRES bitmap on slurmctld
restart or reconfigure (bug was introduced in 14.03.5 "Clear record of a
job's gres when requeued" and only applies when GRES mapped to specific
files).
-- BGQ: Fix race condition when job fails due to hardware failure and is
requeued. Previous code could result in slurmctld abort with NULL pointer.
-- Prevent negative job array index, which could cause slurmctld to crash.
-- Fix issue with squeue/scontrol showing correct node_cnt when only tasks
are specified.
-- Check the status of the database connection before using it.
-- ALPS - If an allocation requests -n set the BASIL -N option to the
amount of tasks / number of node.
-- ALPS - Don't set the env var APRUN_DEFAULT_MEMORY, it is not needed anymore.
-- Give better estimates on pending node count if no node count is requested.
-- BLUEGENE - Fix issue where requeuing jobs could cause an assert.
* Changes in Slurm 14.03.9
==========================
-- If slurmd fails to stat(2) the configuration print the string describing
the error code.
-- Fix for mixing core base reservations with whole node based reservations
to avoid overlapping erroneously.
-- BLUEGENE - Remove references to Base Partition.
-- sview - If compiled on a non-bluegene system then used to view a BGQ fix
to allow sview to display blocks correctly.
-- Fix bug in update reservation. When modifying the reservation the end time
was set incorrectly.
-- The start time of a reservation that is in ACTIVE state cannot be modified.
-- Update the cgroup documentation about release agent for devices.
-- MYSQL - fix for setting up preempt list on a QOS for multiple QOS.
-- Correct a minor error in the scancel.1 man page related to the
--signal option.
-- Enhance the scancel.1 man page to document the sequence of signals sent
-- Fix slurmstepd core dump if the cgroup hierarchy is not completed
when terminating the job.
-- Fix hostlist_shift to be able to give correct node names on names with a
different number of dimensions than the cluster.
-- BLUEGENE - Fix invalid pointer in corner case in the plugin.
-- Make sure on a reconfigure the select information for a node is preserved.
-- Correct logic to support job GRES specification over 31 bits (problem
in logic converting int to uint32_t).
-- Remove logic that was creating GRES bitmap for node when not needed (only
needed when GRES mapped to specific files).
-- BLUEGENE - Fix sinfo -tr before it would only print idle nodes correctly.
-- BLUEGENE - Fix for licenses_only reservation on bluegene systems.
-- sview - Verify pointer before using strchr.
-- -M option on tools talking to a Cray from a non-Cray fixed.
-- CRAY - Fix rpmbuild issue for missing file slurm.conf.template.
-- Fix race condition when dealing with removing many associations at
different times when reservations are using the associations that are
being deleted.
-- When a node's state is set to power_down/power_up, then execute
SuspendProgram/ResumeProgram even if previously executed for that node.
-- Fix logic determining when job configuration (i.e. running node power up
logic) is complete.
-- Setting the state of a node in powered down state node to "resume" will
no longer cause it to reboot, but only clear the "drain" state flag.
Brian Christiansen
committed
-- Fix srun documentation to remove SLURM_NODELIST being equivalent as the -w
option (since it isn't).
-- Fix issue with --hint=nomultithread and allocations with steps running
arbitrary layouts (test1.59).
-- PrivateData=reservation modified to permit users to view the reservations
which they have access to (rather then preventing them from seeing ANY
reservation). Backport from 14.11 commit 77c2bd25c.
-- Fix PrivateData=reservation when using associations to give privileges to
a reservation.
-- Better checking to see if select plugin is linear or not.
-- Add support for time specification of "fika" (3 PM).
-- Provide better estimate of minimum node count for pending jobs using more
job parameters.
-- ALPS - Add SubAllocate to cray.conf file for those who like the way <=2.5
did the ALPS reservation.
-- Safer check to avoid invalid reads when shutting down the slurmctld with
lots of jobs.
-- Fix minor memory leak in the backfill scheduler when shutting down.
-- Add ArchiveResvs to the output of sacctmgr show config and init the variable
on slurmdbd startup.
-- SLURMDBD - Only set the archive flag if purging the object
(i.e ArchiveJobs PurgeJobs). This is only a cosmetic change.
-- Fix for job step memory allocation logic if step requests GRES and memory
is not allocations are not managed.
-- Fix sinfo to display mixed nodes as allocated in '%F' output.
-- Sview - Fix cpu and node counts for partitions.
-- Ignore NO_VAL in SLURMDB_PURGE_* macros.
-- ALPS - Don't drain nodes if epilog fails. It leaves them in drain state
with no way to get them out.
-- Fix issue with task/affinity oversubscribing cpus erroneously when
using --ntasks-per-node.
-- MYSQL - Fix load of archive files.
-- Treat Cray MPI job calling exit() without mpi_fini() as fatal error for
that specific task and let srun handle all timeout logic.
-- Fix small memory leak in jobcomp/mysql.
-- Correct tracking of licenses for suspended jobs on slurmctld reconfigure or
restart.
-- If failed to launch a batch job requeue it in hold.
* Changes in Slurm 14.03.8
==========================
-- Fix minor memory leak when Job doesn't have nodes on it (Meaning the job
has finished)
-- Fix sinfo/sview to be able to query against nodes in reserved and other
states.
-- Make sbatch/salloc read in (SLURM|(SBATCH|SALLOC))_HINT in order to
handle sruns in the script that will use it.
-- srun properly interprets a leading "." in the executable name based upon
the working directory of the compute node rather than the submit host.
-- Fix Lustre misspellings in hdf5 guide
Kilian Cavalotti
committed
-- Fix wrong reference in slurm.conf man page to what --profile option should
be used for AcctGatherFilesystemType.
-- Update HDF5 document to point out the SlurmdUser is who creates the
ProfileHDF5Dir directory as well as all it's sub-directories and files.
-- CRAY NATIVE - Remove error message for srun's ran inside an salloc that
had --network= specified.
-- Defer job step initiation of required GRES are in use by other steps rather
than immediately returning an error.
-- Deprecate --cpu_bind from sbatch and salloc. These never worked correctly
and only caused confusion since the cpu_bind options mostly refer to a
step we opted to only allow srun to set them in future versions.
-- Modify sgather to work if Nodename and NodeHostname differ.
-- Changed use of JobContainerPlugin where it should be JobContainerType.
-- Fix for possible error if job has GRES, but the step explicitly requests a
GRES count of zero.
-- Make "srun --gres=none ..." work when executed without a job allocation.
-- Change the global eio_shutdown_time to a field in eio handle.
-- Advanced reservation fixes for heterogeneous systems, especially when
reserving cores.
-- If --hint=nomultithread is used in a job allocation make sure any srun's
ran inside the allocation can read the environment correctly.
-- If batchdir can't be made set errno correctly so the slurmctld is notified
correctly.
-- Remove repeated batch complete if batch directory isn't able to be made
since the slurmd will send the same message.
-- sacctmgr fix default format for list transactions.
-- BLUEGENE - Fix backfill issue with backfilling jobs on blocks already
reserved for higher priority jobs.
-- When creating job arrays the job specification files for each elements
are hard links to the first element specification files. If the controller
fails to make the links the files are copied instead.
-- Fix error handling for job array create failure due to inability to copy
job files (script and environment).
-- Added patch in the contribs directory for integrating make version 4.0 with
Slurm and renamed the previous patch "make-3.81.slurm.patch".
-- Don't wait for an update message from the DBD to finish before sending rc
message back. In slow systems with many associations this could speed
responsiveness in sacctmgr after adding associations.
-- Eliminate race condition in enforcement of MaxJobCount limit for job arrays.
-- Fix anomaly allocating cores for GRES with specific device/CPU mapping.
-- cons_res - When requesting exclusive access make sure we set the number
of cpus in the job_resources_t structure so as nodes finish the correct
cpu count is displayed in the user tools.
-- If the job_submit plugin calls take longer than 1 second to run, print a
warning.
-- Make sure transfer_s_p_options transfers all the portions of the
s_p_options_t struct.
-- Correct the srun man page, the SLURM_CPU_BIND_VERBOSE, SLURM_CPU_BIND_TYPE
SLURM_CPU_BIND_LIST environment variable are set only when task/affinity
plugin is configured.
-- sacct - Initialize variables correctly to avoid incorrect structure
reference.
-- Performance adjustment to avoid calling a function multiple times when it
only needs to be called once.
-- Give more correct waiting reason if job is waiting on association/QOS
MaxNode limit.
-- DB - When sending lft updates to the slurmctld only send non-deleted lfts.
-- BLUEGENE - Fix documentation on how to build a reservation less than
a midplane.
-- If Slurmctld fails to read the job environment consider it an error
and abort the job.
-- Add the name of the node a job is running on to the message printed by
slurmstepd when terminating a job.
-- Remove unsupported options from sacctmgr help and the dump function.
-- Update sacctmgr man page removing reference to obsolete parameter
MaxProcSecondsPerJob.
-- Added more validity checking of incoming job submit requests.
* Changes in Slurm 14.03.7
==========================
-- Add note to MaxNodesPerUser and multiple jobs running on the same node
counting as multiple nodes.
-- PerlAPI - fix renamed call from slurm_api_set_conf_file to
slurm_conf_reinit.
-- Fix gres race condition that could result in job deallocation error message.
-- Correct NumCPUs count for jobs with --exclusive option.
-- When creating reservation with CoreCnt, check that Slurm uses
SelectType=select/cons_res, otherwise don't send the request to slurmctld
and return an error.
-- Save the state of scheduled node reboots so they will not be lost should the
slurmctld restart.
-- In select/cons_res plugin - Insure the node count does not exceed the task
count.
-- switch/nrt - Do not explicitly unload windows for a job on termination,
only unload its table (which automatically unloads its windows).
-- When HealthCheckNodeState is configured as IDLE don't run the
HealthCheckProgram for nodes in any other states than IDLE.
-- Remove all slurmctld locks prior to job_submit() being called in plugins.
If any slurmctld data structures are read or modified, add locks directly
in the plugin.
-- Minor sanity check to verify the string sent in isn't NULL when using
bit_unfmt.
-- CRAY NATIVE - Fix issue on heavy systems to only run the NHC once per
job/step completion.
-- Remove unneeded step cleanup for pending steps.
-- Fix issue where if a batch job was manually requeued the batch step
information wasn't stored in accounting.
-- When job is release from a requeue hold state clean up its previous
exit code.
-- Correct the srun man page about how the output from the user application
is sent to srun.
-- Increase the timeout of the main thread while waiting for the i/o thread.
Allow up to 180 seconds for the i/o thread to complete.
-- When using sacct -c to read the job completion data compute the correct
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