NEWS

This file describes changes in recent versions of SLURM. It primarily
documents those changes that are of interest to users and admins. 

* Changes in SLURM 0.6.0-pre3
=============================
 -- Add code so job request for shared nodes gets explicitly requested 
    nodes, but lightly loaded nodes otherwise.
 -- Add job step name field.
 -- Add job step network specification field.
 -- Add proctrack/rms plugin
 -- Change the proctrack API to send a slurmd_job_t pointer to both
    slurm_container_create() and slurm_container_add().  One of those
    functions MUST set job->cont_id.
 -- Remove vestigial node_use (virtual or coprocessor) field from job
    request RPC.
 -- Fix mpich-gm bugs, thanks to Takao Hatazaki (HP).

* Changes in SLURM 0.6.0-pre2
=============================
 -- Removed "make rpm" target.

* Changes in SLURM 0.6.0-pre1
=============================
 -- Added bgl/partition_allocator/smap changes from 0.5.7.
 -- Added configurable resource limit propagation  (Daniel Christians, HP).
 -- Added mpi plugin specify at start of srun.
 -- Changed SlurmUser ID from 16-bit to 32-bit.
 -- Added MpiDefault slurm.conf parameter.
 -- Remove KillTree configuration parameter (replace with
    "ProctrackType=proctrack/linuxproc")
 -- Remove MpichGmDirectSupport configuration parameter (replace with
    "MpiDefault=mpich-gm")
 -- Make default plugin be "none" for mpi.
 -- Added mpi/none plugin and made it the default.
 -- Replace extern program_invocation_short_name with program_invocation_name
    due to short name being truncated to 16 bytes on some systems.
 -- Added support for Elan clusters with different CPU counts on nodes
    (Chris Holmes, HP).
 -- Added Consumable Resources web page (Susanne Balle, HP).
 -- "Session manager" slurmd process has been eliminated.
 -- switch/federation fixes migrated from 0.5.*
 -- srun pthreads really set detached, fixes scaling problem

* Changes in SLURM 0.5.7
========================
 -- added infrastructure for (eventual) support of AIX checkpointing
    of slurm batch and interactive poe jobs
 -- added wiring for BGL to do wiring for physical location first and then
    logical.
 -- only one thread used to query database before polling thread is there.
 -- slurmd can now handle 130 jobs at one time instead of 64.

* Changes in SLURM 0.5.6
========================
 -- fix for BGL hostnames and full system partition finding

* Changes in SLURM 0.5.5
========================
 -- Increase SLURM_MESSAGE_TIMEOUT_MSEC_STATIC to 15000
 -- Fix for premature timeout in _slurm_send_timeout
 -- Fix for federation overlapping calls to non-thread-safe _get_adapters

* Changes in SLURM 0.5.4
========================
 -- Added support for no reboot for VN to CO on BGL
 -- Fix for if a job starts after it finishes on BGL

* Changes in SLURM 0.5.3
========================
 -- federation patch so the slurm controller has sane window status at
    start-up regardless of the window status reported in the slurmd
    registration.
 -- federation driver exits with fatal() if the federation driver can not
    find all of the adapters listed in the federation.conf

* Changes in SLURM 0.5.2
========================
 -- Extra federation driver sanity checks

* Changes in SLURM 0.5.1
========================
 -- Fix federation driver bad free(), other minor fed fixes
 -- Allow slurm to parse very long lines in the slurm.conf

* Changes in SLURM 0.5.0
========================
 -- Fix race condition in job accouting plugin, could hang slurmd
 -- Report SlurmUser id over 16 bits as an error (fix on v0.6)

* Changes in SLURM 0.5.0-pre19
==============================
 -- Fix memory management bug in federation driver

* Changes in SLURM 0.5.0-pre18
==============================
 -- elan switch plugin memory leak plugged
 -- added g_slurmctld_jobacct_fini() to release all memory (useful 
    to confirm no memory leaks)
 -- Fix slurmd bug introduced in pre17

* Changes in SLURM 0.5.0-pre17
==============================
 -- slurmd calls the proctrack destroy function at job step completion
 -- federation driver tries harder to clean up switch windows
 -- BGL wiring changes

* Changes in SLURM 0.5.0-pre16
==============================
 -- Check slurm.conf values for under/overflows (some are 16 bit values).
 -- Federation driver clears windows at job step completion
 -- Modify code for clean build with gcc v4.0
 -- New SLURM_NETWORK environmant variable used by slurm_ll_api

* Changes in SLURM 0.5.0-pre15
==============================
 -- Added "network" field to "scontrol show job" output. 
 -- Federation fix for unfreed windows when multiple adapters on
    one node use the same LID

* Changes in SLURM 0.5.0-pre14
==============================
 -- RDMA works on fed plugin.

* Changes in SLURM 0.5.0-pre13
==============================
 -- Major mods to support checkpoint on AIX.
 -- Job accounting documenation expanded, added tuning options, minor bug fixes
 -- BGL wiring will now work on <= 4 node X-dim partitions and also 8 node 
    X-dim partitions.
 -- ENV variables set for spawning jobs. 
 -- jobacct patch from HP to not erroneously lock a mutex in the 
    jobacct_log plugin.
 -- switch/federation supports multiple adapters per task.  sn_all behaviour
    is now correct, and it also supports sn_single.

* Changes in SLURM 0.5.0-pre12
==============================
 -- Minor build changes to support RPM creation on AIX

* Changes in SLURM 0.5.0-pre11
==============================
 -- Slurmd tests for initialized session manager (user's) slurmd pid before 
    killing it to avoid killing system daemon (race condition).
 -- srun --output or --error file names of "none" mapped to /dev/null for 
    batch jobs rather than a file actually named "none".
 -- BGL: don't try to read bglblock state until they are all created to 
    avoid having BGL Bridge API seg fault.

* Changes in SLURM 0.5.0-pre10
==============================
 -- Fix bug that was resetting BGL job geometry on unrelated field update.
 -- squeue and sinfo print timestamp in interate mode by default.
 -- added scrolling windows in smap
 -- introduced new variable to start polling thread in the bluegene plugin.
 -- Latest accounting patches from Riebs/HP, retry communications.
 -- Added srun option --kill-on-bad-exit from Holmes/HP.
 -- Support large (64-bit address) log files where possible.
 -- Fix problem of signals being delivered twice to tasks.  Note that as
    part of the fix the slurmd session manger no longer calls setsid to
    create a new session.

* Changes in SLURM 0.5.0-pre9
=============================
 -- If a job and node are in COMPLETING state and slurmd stops responding for
    SlurmdTimeout, then set the node DOWN and the job COMPLETED.
 -- Add logic to switch/elan to track contexts allocated to active job steps 
    rather than just using a cyclic counter and hoping to avoid collisions. 
 -- Plug memory leak in freeing job info retrieved using API.
 -- Bluegene Plugin handles long deallocating states from driver 202.
 -- Fix bug in bitfmt2int() which can go off allocated memory.

* Changes in SLURM 0.5.0-pre8
=============================
 -- BlueGene srun --geometry was not getting propogated properly.
 -- Fix race condition with multiple simultaneous epilogs.
 -- Modify slurmd to resend job completion RPC to slurmctld in the 
    case where slurmctld is not responding.
 -- Updated sacct: handle cancelled jobs correctly, add user/group
    output, add ntasks ans synonym for nprocs, display error field 
    by default, display ncpus instead of nprocs
 -- Parallelization of queing jobs up to 32 at once.  Variable 
    MAX_AGENT_COUNT used in bgl_job_run.c to specify.
 -- bgl_job_run.c fixed threading issue with uid_to_string use.

* Changes in SLURM 0.5.0-pre7
=============================
 -- Preserve next_job_id across restarts.
 -- Add support for really long job names (256 bytes).
 -- Add configuration parameter SchedulerRootFilter to control what 
    entity manages prioritization of jobs in RootOnly partition 
    (internal scheduler plugin or external entity).
 -- Added support for job accounting.
 -- Added support for consumable resource based node scheduling.
 -- Permit batch job to be launched to re-existing allocation.

* Changes in SLURM 0.5.0-pre6
=============================
 -- Load bluegene.conf and federation.conf based upon SLURM_CONF env 
    var (if set).
 -- Fix slurmd shutdown signal synchronization bug (not consistently