- slurm-announce - lists.schedmd.com

Slurm releases move to a six-month cycle
by Tim Wickberg 26 Mar '24

26 Mar '24

Slurm major releases are moving to a six month release cycle. This change starts with the upcoming Slurm 24.05 release this May. Slurm 24.11 will follow in November 2024. Major releases then continue every May and November in 2025 and beyond. There are two main goals of this change: - Faster delivery of newer features and functionality for customers. - "Predictable" release timing, especially for those sites that would prefer to upgrade during an annual system maintenance window. SchedMD will be adjusting our handling of backwards-compatibility within Slurm itself, and how SchedMD's support services will handle older releases. For the 24.05 release, Slurm will still only support upgrading from (and mixed-version operations with) the prior two releases (23.11, 23.02). Starting with 24.11, Slurm will start supporting upgrades from the prior three releases (24.05, 23.11, 23.02). SchedMD's Slurm Support has been built around an 18-month cycle. This 18-month cycle has traditionally covered the current stable release, plus one prior major releases. With the increase in release frequency this support window will now cover to the current stable release, plus two prior major releases. The blog post version of this announcement includes a table that outlines the updated support lifecycle: https://www.schedmd.com/slurm-releases-move-to-a-six-month-cycle/ - Tim -- Tim Wickberg Chief Technology Officer, SchedMD LLC Commercial Slurm Development and Support

1 0

Slurm version 23.11.5 is now available
by Tim McMullan 21 Mar '24

21 Mar '24

We are pleased to announce the availability of Slurm version 23.11.5. The 23.11.5 release includes some important fixes related to newer features as well as some database fixes. The most noteworthy fixes include fixing the sattach command (which only worked for root and SlurmUser after 23.11.0) and fixing an issue while constructing the new lineage database entries. This last change will also perform a query during the upgrade from any prior 23.11 version to fix existing databases. Slurm can be downloaded from https://www.schedmd.com/downloads.php . -Tim > * Changes in Slurm 23.11.5 > ========================== > -- Fix Debian package build on systems that are not able to query the systemd > package. > -- data_parser/v0.0.40 - Emit a warning instead of an error if a disabled > parser is invoked. > -- slurmrestd - Improve handling when content plugins rely on parsers > that haven't been loaded. > -- Fix old pending jobs dying (Slurm version 21.08.x and older) when upgrading > Slurm due to "Invalid message version" errors. > -- Have client commands sleep for progressively longer periods when backed off > by the RPC rate limiting system. > -- slurmctld - Ensure agent queue is flushed correctly at shutdown time. > -- slurmdbd - correct lineage construction during assoc table conversion for > partition based associations. > -- Add new RPCs and API call for faster querying of job states from slurmctld. > -- slurmrestd - Add endpoint '/slurm/{data_parser}/jobs/state'. > -- squeue - Add `--only-job-state` argument to use faster query of job states. > -- Make a job requesting --no-requeue, or JobRequeue=0 in the slurm.conf, > supersede RequeueExit[Hold]. > -- Add sackd man page to the Debian package. > -- Fix issues with tasks when a job was shrinked more than once. > -- Fix reservation update validation that resulted in reject of correct > updates of reservation when the reservation was running jobs. > -- Fix possible segfault when the backup slurmctld is asserting control. > -- Fix regression introduced in 23.02.4 where slurmctld was not properly > tracking the total GRES selected for exclusive multi-node jobs, potentially > and incorrectly bypassing limits. > -- Fix tracking of jobs typeless GRES count when multiple typed GRES with the > same name are also present in the job allocation. Otherwise, the job could > bypass limits configured for the typeless GRES. > -- Fix tracking of jobs typeless GRES count when request specification has a > typeless GRES name first and then typed GRES of different names (i.e. > --gres=gpu:1,tmpfs:foo:2,tmpfs:bar:7). Otherwise, the job could bypass > limits configured for the generic of the typed one (tmpfs in the example). > -- Fix batch step not having SLURM_CLUSTER_NAME filled in. > -- slurmstepd - Avoid error during `--container` job cleanup about > RunTimeQuery never being configured. Results in cleanup where job steps not > fully started. > -- Fix nodes not being rebooted when using salloc/sbatch/srun "--reboot" flag. > -- Send scrun.lua in configless mode. > -- Fix rejecting an interactive job whose extra constraint request cannot > immediately be satisfied. > -- Fix regression in 23.11.0 when parsing LogTimeFormat=iso8601_ms that > prevented milliseconds from being printed. > -- Fix issue where you could have a gpu allocated as well as a shard on that > gpu allocated at the same time. > -- Fix slurmctld crashes when using extra constraints with job arrays. > -- sackd/slurmrestd/scrun - Avoid memory leak on new unix socket connection. > -- The failed node field is filled when a node fails but does not time out. > -- slurmrestd - Remove requiring job script field and job component script > fields to both be populated in the `POST /slurm/v0.0.40/job/submit` > endpoint as there can only be one batch step script for a job. > -- slurmrestd - When job script is provided in '.jobs[].script' and '.script' > fields, the '.script' field's value will be used in the > `POST /slurm/v0.0.40/job/submit` endpoint. > -- slurmrestd - Reject HetJob submission missing or empty batch script for > first Het component in the `POST /slurm/v0.0.40/job/submit` endpoint. > -- slurmrestd - Reject job when empty batch script submitted to the > POST /slurm/v0.0.40/job/submit` endpoint. > -- Fix pam_slurm and pam_slurm_adopt when using auth/slurm. > -- slurmrestd - Add 'cores_per_socket' field to > `POST /slurm/v0.0.40/job/submit` endpoint. > -- Fix srun and other Slurm commands running within a "configless" salloc when > salloc itself fetched the config. > -- Enforce binding with shared gres selection if requested. > -- Fix job allocation failures when the requested tres type or name ends in > "gres" or "license". > -- accounting_storage/mysql - Fix lineage string construction when adding a > user association with a partition. > -- Fix sattach command. > -- Fix ReconfigFlags. Due how reconfig was changed in 23.11, they will also > be used to influence the slurmctld startup as well. > -- Fix starting slurmd in configless mode if MUNGE support was disabled. -- Tim McMullan Release Management, Support, and Development SchedMD LLC - Commercial Slurm Development and Support

1 0

Slurm version 23.11.4 is now available
by Tim Wickberg 22 Feb '24

22 Feb '24

We are pleased to announce the availability of Slurm version 23.11.4. The 23.11.4 release includes a number of fixes to stability and various bug fixes. Some notable changes include that VSZ is no longer being reported when using cgroup/v2 (this is not provided by the kernel), a warning has been added if using select/linear and tolology/tree together as this will not be supported in the next major release, and a backwards compatibility issue that caused jobs using --gpus to be rejected when submitted from 23.02 or 22.05. Slurm can be downloaded from https://www.schedmd.com/downloads.php . In addition, welcome to the updated slurm-announce list! We've made some mailing list adjustments in order to ensure compliance with newer anti-spam measures, and upgraded to Mailman3 as part of this process. - Tim -- Tim Wickberg Chief Technology Officer, SchedMD LLC Commercial Slurm Development and Support > * Changes in Slurm 23.11.4 > ========================== > -- Fix a memory leak when updating partition nodes. > -- Don't leave a partition around if it fails to create with scontrol. > -- Fix segfault when creating partition with bad node list from scontrol. > -- Fix preserving partition nodes on bad node list update from scontrol. > -- Fix assertion in developer mode on a failed message unpack. > -- Fix repeat POWER_DOWN requests making the nodes available for ping. > -- Fix rebuilding job alias_list on restart when nodes are still powering up. > -- Fix INVALID nodes running health check. > -- Fix cloud/future nodes not setting addresses on invalid registration. > -- scrun - Remove the requirement to set the SCRUN_WORKING_DIR environment > variable. This was a regression in 23.11. > -- Add warning for using select/linear with topology/tree. > This combination will not be supported in the next major version. > -- Fix health check program not being run after first pass of all nodes when > using MaxNodeCount. > -- sacct - Set process exit code to one for all errors. > -- Add SlurmctldParameters=disable_triggers option. > -- Fix issue running steps when the allocation requested an exclusive > allocation shards along with shards. > -- Fix cleaning up the sleep process and the cgroup of the extern step if > slurm_spank_task_post_fork returns an error. > -- slurm_completion - Add missing --gres-flags= options > multiple-tasks-per-sharing and one-task-per-sharing. > -- scrun - Avoid race condition that could cause outbound network > communications to incorrectly rejected with an incomplete packet error. > -- scrun - Gracefully handle kernel giving invalid expected number of incoming > bytes for a connection causing incoming packet corruption resulting in > connection getting closed. > -- srun - return 1 when a step lauch fails > -- scrun - Avoid race condition that could cause deadlock during shutdown. > -- Fix scontrol listpids to work under dynamic node scenarios. > -- Add --tres-bind to --help and --usage output. > -- Add --gres-flags=allow-task-sharing to allow GPUs to still be accessible > among all tasks when binding GPUs to specific tasks. > -- Fix issue with CUDA_VISIBLE_DEVICES showing the same MIG device for all > tasks when using MIGs with --tres-per-task or --gpus-per-task. > -- slurmctld - Prevent a potential hang during shutdown/reconfigure if the > association cache thread was previously shut down. > -- scrun - Avoid race condition that could cause scrun to hang during > shutdown when connections have pending events. > -- scrun - Avoid excessive polling of connections during shutdown that could > needlessly cause 100% CPU usage on a thread. > -- sbcast - Use user identity from broadcast credential instead of looking it > up locally on the node. > -- scontrol - Remove "abort" option handling. > -- Fix an error message referring to the wrong RPC. > -- Fix memory leak on error when creating dynamic nodes. > -- Fix a slurmctld segfault when a cloud/dynamic node changes hostname on > registration. > -- Prevent a slurmctld deadlock if the gpu plugin fails to load when > creating a node. > -- Change a slurmctld fatal() to an error() when attempting to create a > dynamic node with a global autodetect set in gres.conf. > -- Fix leaving node records on error when creating nodes with scontrol. > -- scrun/sackd - Avoid race condition where shutdown could deadlock. > -- Fix a regression in 23.02.5 that caused pam_slurm_adopt to fail when > the user has multiple jobs on a node. > -- Add GLOB_SILENCE flag that silences the error message which will display if > an include directive attempts to use the "*" wildcard. > -- Fix jobs getting rejected when submitting with --gpus option from older > versions of job submission commands (23.02 and older). > -- cgroup/v2 - Return 0 for VSZ. Kernel cgroups do not provide this metric. > -- scrun - Avoid race condition where outbound RPCs could be corrupted. > -- scrun - Avoid race condition that could cause a crash while compiled in > debug mode. > -- gpu/rsmi - Disable gpu usage statistics when not using ROCM 6.0.0+ > -- Fix stuck processes and incorrect environment when using --get-user-env. > -- Avoid segfault in the slurmdbd when TrackWCKey=no but you are still using > use WCKeys. > -- Fix ctld segfault with TopologyParam=RoutePart and no partition defined. > -- slurmctld - Fix missing --deadline handling for jobs not evaluated by the > schedulers (i.e. non-runnable, skipped for other reasons, etc.). > -- Demote some eio related logs from error to verbose in user commands. These > are not generally actionable by the user and are easilly generated by port > scanning a machine running srun. > -- Make sprio correctly print array tasks that have not yet been split out. > -- topology/block - Restrict the number of last-level blocks in any allocation.

1 0

2025

2024

slurm-announce ----- 2025 ----- June 2025 May 2025 April 2025 March 2025 February 2025 January 2025 ----- 2024 ----- December 2024 November 2024 October 2024 September 2024 August 2024 July 2024 June 2024 May 2024 April 2024 March 2024 February 2024

slurm-announce