We are pleased to announce the immediate availability of Slurm 16.05.7.
It contains about 40 relatively minor bug fixes.
Slurm downloads are available from
https://www.schedmd.com/downloads.php. You may notice this is a change
in location, https://www.schedmd.com/#repos will still work for the time
being, but it is a good idea to update your links sooner than later.
Changes are listed below or available as always in the NEWS file.
* Changes in Slurm 16.05.7
==========================
-- Fix issue in the priority/multifactor plugin where on a slurmctld
restart,
where more time is accounted for than should be allowed.
-- cray/busrt_buffer - If total_space in a pool decreases, reset
used_space
rather than trying to account for buffer allocations in progress.
-- cray/busrt_buffer - Fix for double counting of used_space at slurmctld
startup.
-- Fix regression in 16.05.6 where if you request multiple cpus per
task (-c2)
and request --ntasks-per-core=1 and only 1 task on the node
the slurmd would abort on an infinite loop fatal.
-- cray/busrt_buffer - Internally track both allocated and unusable space.
The reported UsedSpace in a pool is now the allocated space
(previously was
unusable space). Base available space on whichever value leaves
least free
space.
-- cray/burst_buffer - Preserve job ID and don't translate to job
array ID.
-- cray/burst_buffer - Update "instance" parsing to match updated
dw_wlm_cli
output.
-- sched/backfill - Insure we don't try to start a job that was
already started
and requeued by the main scheduling logic.
-- job_submit/lua - add access to the job features field in job_record.
-- select/linear plugin modified to better support heterogeneous
clusters when
topology/none is also configured.
-- Permit cancellation of jobs in configuring state.
-- acct_gather_energy/rapl - prevent segfault in slurmd from race to
gather
data at slurmd startup.
-- Integrate node_feature/knl_generic with "hbm" GRES information.
-- Fix output routines to prevent rounding the TRES values for memory
or BB.
-- switch/cray plugin - fix use after free error.
-- docs - elaborate on how way to clear TRES limits in sacctmgr.
-- knl_cray plugin - Avoid abort from backup slurmctld at start time.
-- cgroup plugins - fix two minor memory leaks.
-- If a node is booting for some job, don't allocate additional jobs
to the
node until the boot completes.
-- testsuite - fix job id output in test17.39.
-- Modify backfill algorithm to improve performance with large numbers of
running jobs. Group running jobs that end in a "similar" time frame
using a
time window that grows exponentially rather than linearly. After
one second
of wall time, simulate the termination of all remaining running jobs in
order to respond in a reasonable time frame.
-- Fix slurm_job_cpus_allocated_str_on_node_id() API call.
-- sched/backfill plugin: Make malloc match data type (defined as
uint32_t and
allocated as int).
-- srun - prevent segfault when terminating job step before step has
launched.
-- sacctmgr - prevent segfault when trying to reset usage for an invalid
account name.
-- Make the openssl crypto plugin compile with openssl >= 1.1.
-- Fix SuspendExcNodes and SuspendExcParts on slurmctld reconfiguration.
-- sbcast - prevent segfault in slurmd due to race condition between file
transfers from separate jobs using zlib compression
-- cray/burst_buffer - Increase time to synchronize operations between
threads
from 5 to 60 seconds ("setup" operation time observed over 17 seconds).
-- node_features/knl_cray - Fix possible race condition when changing node
state that could result in old KNL mode as an active features.
-- Make sure if a job can't run because of resources we also check
accounting
limits after the node selection to make sure it doesn't violate
those limits
and if it does change the reason for waiting so we don't reserve
resources
on jobs violating accounting limits.
-- NRT - Make it so a system running against IBM's PE will work with PE
version 1.3.
-- NRT - Make it so protocols pgas and test are allowed to be used.
-- NRT - Make it so you can have more than 1 protocol listed in
MP_MSG_API.
-- cray/burst_buffer - If slurmctld daemon restarts with pending job
and burst
buffer having unknown file stage-in status, teardown the buffer,
defer the
job, and start stage-in over again.
-- On state restore in the slurmctld don't overwrite the
mem_spec_limit given
from the slurm.conf when using FastSchedule=0.
-- Recognize a KNL's proper NUMA count (rather than setting it to the
value
in slurm.conf) when using FastSchedule=0.
-- Fix parsing in regression test1.92 for some prompts.
-- sbcast - use slurmd's gid cache rather than a separate lookup.
-- slurmd - return error if setgroups() call fails in _drop_privileges().
-- Remove error messages about gres counts changing when a job is
resized on
a slurmctld restart or reconfig, as they aren't really error messages.
-- Fix possible memory corruption if a job is using GRES and changing
size.
-- jobcomp/elasticsearch - fix printf format for a value on 32-bit builds.
-- task/cgroup - Change error message if CPU binding can not take place to
better identify the root cause of the problem.
-- Fix issue where task/cgroup would not always honor --cpu_bind=threads.
-- Fix race condition in with getgrouplist() in slurmd that can lead to
user accounts being granted access to incorrect group memberships
during
job launch.
