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Discrepancy in TmpDisk values between scontrol and sinfo in Slurm24.05.3
by Gizo Nanava 11 Jan '25

11 Jan '25

There seems to be an issue with the TmpDisk value reporting in Slurm 24.05.3. While the correct value is displayed using the scontrol show nodes command, sinfo appears to report an incorrect value under certain conditions. For example, the TmpDisk parameter for my compute nodes is configured as 21800000 (21.8 TB) in slurm.conf, and this value is shown correctly with > scontrol show nodes ai-n007 ...... State=MIXED ThreadsPerCore=1 TmpDisk=21800000 Weight=1 Owner=N/A MCS_label=N/A .... However, when using the sinfo command with the -O Disk:20 option, the displayed value is 2180000, which is an order of magnitude lower: > sinfo -hO Disk:20 -n ai-n007 2180000 It appears that sinfo might be truncating or misinterpreting values with 8 or more digits. Has anyone encountered a similar issue? Is this a known bug in Slurm 24.05.3? Any suggestions or insights would be greatly appreciated. Best regards, Gizo

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Power saving is getting disabled in Slurm
by Suman Deb 10 Jan '25

10 Jan '25

Hello, We are enabling global power saving for slurm. This is our config. But we are experiencing an issue where Slurm is talking nodes out of power saving mode. We are using config less and dynamic nodes. Slurmctrld logs 2025-01-08T09:54:18.096] Cleared POWER_SAVE flag from nodes dev3-cbf-debug-e2std4-s0-[0-1],dev3-cbf-infra-e2std4-s0-[0-1],dev3-cbf-slurmd-e2std4-[0-4] [2025-01-08T09:54:18.097] debug: power_save module disabled, SuspendTime < 0 [2025-01-08T10:05:09.683] debug: power_save module disabled, SuspendTime < 0 [2025-01-08T10:12:00.447] debug: power_save module disabled, SuspendTime < 0 [2025-01-08T10:17:27.077] debug: power_save module disabled, SuspendTime < 0 [2025-01-08T10:20:06.735] debug: power_save module disabled, SuspendTime < 0 [2025-01-08T10:26:16.663] debug: power_save module disabled, SuspendTime < 0 [2025-01-08T10:26:19.017] debug: power_save module disabled, SuspendTime < 0 [2025-01-08T10:46:25.078] debug: power_save module disabled, SuspendTime < 0 [2025-01-08T15:58:54.080] debug: power_save module disabled, SuspendTime < 0 [2025-01-08T15:58:56.452] debug: power_save module disabled, SuspendTime < 0 [2025-01-09T00:08:01.993] debug: power_save module disabled, SuspendTime < 0 [2025-01-09T00:08:02.157] debug: power_save module disabled, SuspendTime < 0 [2025-01-09T00:14:26.817] debug: power_save module disabled, SuspendTime < 0 [2025-01-09T00:14:26.971] debug: power_save module disabled, SuspendTime < 0 We manage the infra through Puppet and I can confirm is SuspendTime=3600. Slurm version:- slurm 24.05.2 # SLURM POWER SAVING FEATURS SuspendProgram=/etc/slurm/suspend_nodes_slurm.par ResumeProgram=/etc/slurm/resume_nodes_slurm.par SuspendTimeout=600 ResumeTimeout=900 ResumeRate=100 SuspendRate=100 SuspendTime=3600 SlurmctldParameters=enable_configless,cloud_dns,idle_on_node_suspend DebugFlags=Power

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Unexpected node got allocation
by Dan Healy 09 Jan '25

09 Jan '25

Hello there and good morning from Baltimore. I have a small cluster with 100 nodes. When the cluster is completely empty of all jobs, the first job gets allocated to node 41. In other clusters, the first job gets allocated to mode 01. If I specify node 01, the allocation works perfectly. I have my partition NodeName set as node[01-99], so having node41 used first is a surprise to me. We also have many other partitions which start with node41, but the partition being used for the allocation starts with node01. Does anyone know what would cause this? Thanks, Daniel Healy

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need help with seff script on ubuntu (slurm 21.08)
by Gérard Henry (AMU) 09 Jan '25

09 Jan '25

Hello all and happy new year, i have installed slurm 21.08 on ubuntu 22 LTS, and database for accounting on a remote machine running same release. I got seff from: https://support.schedmd.com/show_bug.cgi?id=1611 but, there are errors: Use of uninitialized value $ncpus in numeric eq (==) at /usr/bin/seff line 72, <DATA> line 602. Use of uninitialized value $lmem in numeric lt (<) at /usr/bin/seff line 109, <DATA> line 602. Job ID: 14 Cluster: cathena2 Use of uninitialized value $user in concatenation (.) or string at /usr/bin/seff line 126, <DATA> line 602. does anyone have a more recent version? i try to enable debug uncommenting the line: 60c60 < #print Dumper($job); --- > print Dumper($job); but it's strange, because if you run the seff command several times in a row, the dump result is very different, even though the job has been completed. It doesn't change the most important values, but how is it possible not to have the same output? Thanks in advance for help, -- Gérard HENRY Institut Fresnel - UMR 7249 +33 413945457 Aix-Marseille Université - Campus Etoile, BATIMENT FRESNEL, Avenue Escadrille Normandie Niemen, 13013 Marseille Site : https://fresnel.fr/ Afin de respecter l'environnement, merci de n'imprimer cet email que si nécessaire.

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launch failed requeued held
by sportlecon sportlecon 08 Jan '25

08 Jan '25

slurm 24.11 - squeue displays reason "launch failed requeued held"

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formatting node names
by Davide DelVento 07 Jan '25

07 Jan '25

Hi all, I remember seeing on this list a slurm command to change a slurm-friendly list such as gpu[01-02],node[03-04,12-22,27-32,36] into a bash friendly list such as gpu01 gpu02 node03 node04 node12 etc I made a note about it but I can't find my note anymore, nor the relevant message. Can someone please refresh my memory? I'll be more careful with such a note this time, I promise! Thanks and happy new year!

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Change config file location of slurmdbd temporarily
by Sven Schulze 07 Jan '25

07 Jan '25

Hey all, Is there a way to change the location of the slurmdbd.conf temporarily when starting slurmdbd? For all other daemons I can specify "-f", but this doesn't seem to work for slurmdbd, is there a way to edit the build files to achieve this? Kind Regards, Sven

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Permission denied for slurmdbd.conf
by sportlecon＠gmail.com 07 Jan '25

07 Jan '25

ls -ls /usr/local/slurm/etc/slurmdbd.conf 4 -rw------- 1 slurm slurm 497 Dec 28 16:34 /usr/local/slurm/etc/slurmdbd.conf sudo -u slurm /usr/local/slurm/sbin/slurmdbd -Dvvv slurmdbd: error: s_p_parse_file: unable to read "/usr/local/slurm/etc/slurmdbd.conf": Permission denied slurmdbd: fatal: Could not open/read/parse slurmdbd.conf file /usr/local/slurm/etc/slurmdbd.conf

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Nodes required for job are DOWN, DRAINED or reserved for jobs in higher priority partitions
by sportlecon sportlecon 07 Jan '25

07 Jan '25

JOBID PARTITION NAME USER ST TIME NODES NODELIST(REASON) 26 cpu myscript user1 PD 0:00 4 (Nodes required for job are DOWN, DRAINED or reserved for jobs in higher priority partitions) Anyone can help to fix this?

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All GPUs are Usable if no Gres is Defined
by Jacob Gordon 04 Jan '25

04 Jan '25

Hello, We have a two node GPU cluster with 8 NVidia GPUs. GRES is currently configured and works if a user defines it within their sbtach/interactive job submission (--gres=gpu:3). Users only have access to the GPUs they request. However, when they omit “--gres=gpu:n”, they can use every GPU, which interferes with running jobs that used the gres option. I’m at a loss as to why this is happening. Can someone please look at our configuration to see if anything stands out? SLURM Version = 21.08.5 *Slurm.conf* ClusterName=ommit SlurmctldHost=headnode ProctrackType=proctrack/cgroup ReturnToService=2 SlurmdPidFile=/run/slurmd.pid SlurmdSpoolDir=/var/lib/slurm/slurmd StateSaveLocation=/var/lib/slurm/slurmctld SlurmUser=slurm TaskPlugin=task/cgroup SchedulerType=sched/backfill SelectType=select/cons_tres SelectTypeParameters=CR_Core_Memory AccountingStorageType=accounting_storage/slurmdbd # AccountingStorageType for other resources # AccountingStorageTRES=gres/gpu #DebugFlags=CPU_Bind,gres JobCompType=jobcomp/none JobAcctGatherType=jobacct_gather/cgroup SlurmctldDebug=info SlurmctldLogFile=/var/log/slurm/slurmctld.log SlurmdDebug=info SlurmdLogFile=/var/log/slurm/slurmd.log DefMemPerCPU=4000 #NodeName=n01 CPUs=256 Boards=1 SocketsPerBoard=2 CoresPerSocket=64 ThreadsPerCore=2 RealMemory=1000000 NodeName=n01 Gres=gpu:nvidia-l40:8 CPUs=256 Boards=1 SocketsPerBoard=2 CoresPerSocket=64 ThreadsPerCore=2 RealMemory=1000000 NodeName=n02 Gres=gpu:nvidia-l40:8 CPUs=256 Boards=1 SocketsPerBoard=2 CoresPerSocket=64 ThreadsPerCore=2 RealMemory=1000000 #Gres config for GPUs GresTypes=gpu PreemptType=preempt/qos PreemptMode=REQUEUE # reset usage after 1 week PriorityUsageResetPeriod=WEEKLY # The job's age factor reaches 1.0 after waiting in the # queue for 2 weeks. PriorityMaxAge=14-0 # This next group determines the weighting of each of the # components of the Multifactor Job Priority Plugin. # The default value for each of the following is 1. PriorityWeightAge=1000 PriorityWeightFairshare=10000 PriorityWeightJobSize=1000 PriorityWeightPartition=1000 PriorityWeightQOS=1500 # Primary partitions PartitionName=debug Nodes=ALL Default=YES MaxTime=INFINITE State=UP PartitionName=all Nodes=n01,n02 Default=YES MaxTime=01:00:00 DefaultTime=00:30:00 State=UP PartitionName=statds Nodes=n01 Default=NO MaxTime=48:00:00 State=UP Priority=100 State=UP OverSubscribe=FORCE AllowAccounts=statds PartitionName=phil Nodes=n02 Default=NO MaxTime=48:00:00 State=UP Priority=100 State=UP OverSubscribe=FORCE AllowAccounts=phil #Set up condo mode # Condo partitions PartitionName=phil_condo Nodes=n02 Default=NO MaxTime=48:00:00 DefaultTime=00:01:00 State=UP Priority=50 OverSubscribe=FORCE AllowQos=normal PartitionName=statds_condo Nodes=n01 Default=NO MaxTime=48:00:00 DefaultTime=00:01:00 State=UP Priority=50 OverSubscribe=FORCE AllowQos=normal JobSubmitPlugins=lua *Gres.conf* NodeName=n01 Name=gpu Type=nvidia-l40 File=/dev/nvidia0 NodeName=n01 Name=gpu Type=nvidia-l40 File=/dev/nvidia1 NodeName=n01 Name=gpu Type=nvidia-l40 File=/dev/nvidia2 NodeName=n01 Name=gpu Type=nvidia-l40 File=/dev/nvidia3 NodeName=n01 Name=gpu Type=nvidia-l40 File=/dev/nvidia4 NodeName=n01 Name=gpu Type=nvidia-l40 File=/dev/nvidia5 NodeName=n01 Name=gpu Type=nvidia-l40 File=/dev/nvidia6 NodeName=n01 Name=gpu Type=nvidia-l40 File=/dev/nvidia7 NodeName=n02 Name=gpu Type=nvidia-l40 File=/dev/nvidia0 NodeName=n02 Name=gpu Type=nvidia-l40 File=/dev/nvidia1 NodeName=n02 Name=gpu Type=nvidia-l40 File=/dev/nvidia2 NodeName=n02 Name=gpu Type=nvidia-l40 File=/dev/nvidia3 NodeName=n02 Name=gpu Type=nvidia-l40 File=/dev/nvidia4 NodeName=n02 Name=gpu Type=nvidia-l40 File=/dev/nvidia5 NodeName=n02 Name=gpu Type=nvidia-l40 File=/dev/nvidia6 NodeName=n02 Name=gpu Type=nvidia-l40 File=/dev/nvidia7 *Cgroup.conf* CgroupMountpoint="/sys/fs/cgroup" CgroupAutomount=yes CgroupReleaseAgentDir="/etc/slurm/cgroup" AllowedDevicesFile="/etc/slurm/cgroup_allowed_devices_file.conf" ConstrainCores=yes ConstrainDevices=yes ConstrainRAMSpace=yes *cgroup_allowed_devices_file.conf* /dev/null /dev/urandom /dev/zero /dev/sda* /dev/cpu/*/* /dev/pts/* /dev/nvidia*

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Resource guarantees
by christopher.furbee＠jhuapl.edu 23 Dec '24

23 Dec '24

Hello, Long time SGE admin, new SLURM admin here. I recently started the transition of all my clusters from SGE to SLURM and everything was great until I hit the "Taco Bell" cluster (fake name). Taco Bell supports 4 projects and under SGE we had a priority system setup using projects to balance the queue. For the life of me I have been unable to replicate this in SLURM. We are looking to configure guaranteed resources based on the project. I had thought we could accomplish this with QOS and accounts but so far we have failed. What we would like to end up with is; When project Gordita is running uncontested 100% of the cluster is available. While Gordita is running, if Crunchwrap submits their jobs we want the scheduler to prioritize those jobs until a 75% Gordita, 25% Crunchwrap balance of jobs is reached. No preempting or priority overriding, just as a Gordita job finishes, if Crunchwrap is less than 25%, start a Crunchwrap job. And then maintain that balance until one of the projects jobs are 100% completed. Any assistance or guidance is greatly appreciated.

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Slurm plugin for custom hardware allocation
by Laura Zharmukhametova 23 Dec '24

23 Dec '24

Hello, Is there an existing Slurm plugin for FPGA allocation? If not, can someone please point me in the right direction for how to approach it. Many thanks

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sending mails wit smail on rocky9
by Marcus Wagner 19 Dec '24

19 Dec '24

Hi all, I have a problem with sending mails on rocky 9 via Slurm. One needs to install s-nail to have "/bin/mail" being available. There are some caveats in smail. In the second part (for the message, when the job began) one need to pipe ( eg echo "") into $MAIL, even in a script with no input, s-nail wants to be interactive. but it suffices to echo an empty text to snail. Nonetheless, I don't get any mail through. it seems the, mailprog for some reason gets killed or errors out for some other reason. While it is perfectionally working if run from the console :/ I all the time get in the slurmctld.log the following: 27212:[2024-12-19T15:54:54.935] slurmscriptd: error: run_command: killing MailProg operation on shutdown 27213:[2024-12-19T15:54:54.945] slurmscriptd: _run_script: JobId=0 MailProg killed by signal 9 27214:[2024-12-19T15:54:54.945] error: MailProg returned error, it's output was '' 27395:[2024-12-19T15:55:55.540] slurmscriptd: error: run_command: killing MailProg operation on shutdown 27396:[2024-12-19T15:55:55.551] slurmscriptd: _run_script: JobId=0 MailProg killed by signal 9 27397:[2024-12-19T15:55:55.551] error: MailProg returned error, it's output was '' 27438:[2024-12-19T15:56:55.981] slurmscriptd: error: run_command: killing MailProg operation on shutdown 27439:[2024-12-19T15:56:55.981] slurmscriptd: error: run_command: killing MailProg operation on shutdown 27440:[2024-12-19T15:56:55.992] slurmscriptd: _run_script: JobId=0 MailProg killed by signal 9 27441:[2024-12-19T15:56:55.992] slurmscriptd: _run_script: JobId=0 MailProg killed by signal 9 27442:[2024-12-19T15:56:55.992] error: MailProg returned error, it's output was '' 27443:[2024-12-19T15:56:55.992] error: MailProg returned error, it's output was '' 27450:[2024-12-19T15:56:58.849] slurmscriptd: error: run_command: killing MailProg operation on shutdown 27451:[2024-12-19T15:56:58.859] slurmscriptd: _run_script: JobId=0 MailProg killed by signal 0 any hints? Best Marcus -- Dipl.-Inf. Marcus Wagner stellv. Gruppenleitung IT Center Gruppe: Server, Storage, HPC Abteilung: Systeme und Betrieb RWTH Aachen University Seffenter Weg 23 52074 Aachen Tel: +49 241 80 24383 wagner(a)itc.rwth-aachen.de www.itc.rwth-aachen.de Social-Media-Kanäle des IT Centers: https://blog.rwth-aachen.de/itc/ https://www.facebook.com/itcenterrwth https://www.linkedin.com/company/itcenterrwth https://twitter.com/ITCenterRWTH https://www.youtube.com/c/ITCenterRWTHAachen

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lua, glib, gtk, kafka not found for slurm 24.11 and Alma 8
by Bernd Melchers 17 Dec '24

17 Dec '24

Dear all, i tried to rpmbuild slurm-24.11.0 for Alma Linux 8. Build failed because some installed Packages are not found by slurms configure script: rdkafka, glib, gtp and lua But all these packages are installed and they are found by slurm-24.05.x: librdkafka-1.6.1-1.el8.x86_64 librdkafka-devel-1.6.1-1.el8.x86_64 lua-5.3.4-12.el8.x86_64 lua-devel-5.3.4-12.el8.x86_64 glib2-2.56.4-165.el8_10.x86_64 glib2-devel-2.56.4-165.el8_10.x86_64 gtk2-2.24.32-5.el8.x86_64 gtk2-devel-2.24.32-5.el8.x86_64 gtk3-3.22.30-12.el8_10.x86_64 gtk3-devel-3.22.30-12.el8_10.x86_64 Mit freundlichen Grüßen Bernd Melchers -- Archiv- und Backup-Service | fab-service(a)zedat.fu-berlin.de Freie Universität Berlin | Tel. +49-30-838-55905

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AllocNode:Sid in scontrol but not sacct?
by Chris Taylor 16 Dec '24

16 Dec '24

Does the accounting database keep this? Maybe I'm missing something but I don't see a way to query for it in sacct. Chris

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job_container/tmpfs, TmpFS and TmpDisk usage
by Paul Musset 16 Dec '24

16 Dec '24

Hello, I have multiple questions about the usage of job_container/tmpfs, and the TmpFS and TmpDisk variables 1) If my job_container.conf files contains: ``` BasePath=/mnt/slurm_tmp Shared=true ``` is it important what I set TmpFS to in slurm.conf ? Should I set it to '/mnt/slurm_tmp' or '/tmp' ? 2) What size should I put in TmpDisk ? the size advertised by df ? 3) Finally, is there any recommended file system for the partition used as the job_container/tmpfs BasePath ? Best regards, Paul Musset Max Planck Institute for Brain Research

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Difference between sreport's cpu time usage and sacct -j usage
by KK 14 Dec '24

14 Dec '24

Hi all, I have observed a significant discrepancy in CPU usage time calculations between sreport and sacct, and I would like to understand the underlying cause. Let me share the specific case I encountered when calculating CPU usage time for user zt23132881r from November 1, 2024, to November 30, 2024. 1. sreport Results (995,171 minutes): -------------------------------------------------------------------------------- *[root@master ~]# sreport Cluster UserUtilizationByAccount user=zt23132881r start=2024-11-01 end=2024-11-30--------------------------------------------------------------------------------Cluster/User/Account Utilization 2024-11-01T00:00:00 - 2024-11-29T23:59:59 (2505600 secs)Usage reported in CPU Minutes-------------------------------------------------------------------------------- Cluster Login Proper Name Account Used Energy--------- --------- --------------- --------------- -------- ---------djhpc-po+ zt231328+ zt23132881r zt+ zt23132881r_ba+ 995171 6294875* 2. sacct Results: # Without truncate (1,019,927 minutes / 61,195,668 seconds) *[root@master ~]# sacct -u zt23132881r -S 2024-11-01 -E 2024-11-30 -o "jobid,partition,account,user,alloccpus,cputimeraw,state" -X |awk 'BEGIN{total=0}{total+=$6}END{print total}'61195668* # With truncate (967,165 minutes / 58,029,908 seconds) *[root@master ~]# sacct -u zt23132881r -S 2024-11-01 -E 2024-11-30 -o "jobid,partition,account,user,alloccpus,cputimeraw,state" -X --truncate |awk 'BEGIN{total=0}{total+=$6}END{print total}'58029908* # No -X *[root@master ~]# sacct -u zt23132881r -S 2024-11-01 -E 2024-11-30 -o "jobid,partition,account,user,alloccpus,cputimeraw,state" |awk 'BEGIN{total=0}{total+=$6}END{print total}'61195668* The results show three different values: - *sreport: 995,171 minutes* - *sacct (without truncate): 1,019,927 minutes* - *sacct (with truncate): 967,165 minutes* I would appreciate if someone could explain: - Which of these results is more accurate? - How does sreport calculate CPU usage time? - Why does the --truncate option in sacct lead to different results? Thank you for your assistance in clarifying these discrepancies. Best regards

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Node configuration unavailable when using --mem-per-gpu , for specific GPU type
by Matthew R. Baney 13 Dec '24

13 Dec '24

Hi all, I'm seeing some odd behavior when using the --mem-per-gpu flag instead of the --mem flag to request memory when also requesting all available CPUs on a node (in this example, all available nodes have 32 CPUs): $ srun --ntasks-per-node=8 --cpus-per-task=4 --gpus-per-node=gtx1080ti:1 --mem-per-gpu=1g --pty bash srun: error: Unable to allocate resources: Requested node configuration is not available $ srun --ntasks-per-node=8 --cpus-per-task=4 --gpus-per-node=gtx1080ti:1 --mem=1g --pty bash srun: job 3479971 queued and waiting for resources srun: job 3479971 has been allocated resources $ The nodes in this partition have a mix of gtx1080ti and rtx2080ti GPUs, but only one type of GPU is in any one node. The same behavior does not occur when requesting a (node with a) rtx2080ti instead. Is there something I'm missing that would cause the --mem-per-gpu flag to not be working in this example? Thanks, Matthew

1 0

Adding gres usage to the accounting database
by Mark Dixon 13 Dec '24

13 Dec '24

Hello! Our jobs can ask for dedicated per-node disk space, e.g. "--gres=tmp:1G", where an ephemeral directory is managed by the site prolog/epilog and usage is capped using an xfs project quota. This works well, although we really need to look at job_container/tmpfs. I note that slurm already periodically polls jobs for their memory usage, which finds its way into the accounting database tres_usage fields. What would be really nice is if we could extend this polling so that we feed our xfs project quota utilisation into the accounting database, too: users get feedback on what their jobs need, and we notice people who ask for a fraction of a node and all of the disk space, but not use it. Slurm is famous for being extendible. Is there some sort of plugin hook someone can point me at to have a go with, or am I missing a simpler method, please? Thanks! Mark

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Slurm version 24.05.5 is now available
by Marshall Garey 12 Dec '24

12 Dec '24

We are pleased to announce the availability of Slurm version 24.05.5. This release fixes a few potential crashes, several stepmgr bugs, compatibility for sstat and sattach with newer version steps, and some other minor bugs. Downloads are available at https://www.schedmd.com/downloads.php . -- Marshall Garey Release Management, Support, and Development SchedMD LLC - Commercial Slurm Development and Support > * Changes in Slurm 24.05.5 > ========================== > -- Fix issue signaling cron jobs resulting in unintended requeues. > -- Fix slurmctld memory leak in implementation of HealthCheckNodeState=CYCLE. > -- job_container/tmpfs - Fix SLURM_CONF env variable not being properly set. > -- sched/backfill - Fix job's time_limit being overwritten by time_min for job > arrays in some situations. > -- RoutePart - fix segfault from incorrect memory allocation when node doesn't > exist in any partition. > -- slurmctld - Fix crash when a job is evaluated for a reservation after > removal of a dynamic node. > -- gpu/nvml - Attempt loading libnvidia-ml.so.1 as a fallback for failure in > loading libnvidia-ml.so. > -- slurmrestd - Fix populating non-required object fields of objects as '{}' in > JSON/YAML instead of 'null' causing compiled OpenAPI clients to reject > the response to 'GET /slurm/v0.0.40/jobs' due to validation failure of > '.jobs[].job_resources'. > -- Fix sstat/sattach protocol errors for steps on higher version slurmd's > (regressions since 20.11.0rc1 and 16.05.1rc1 respectively). > -- slurmd - Avoid a crash when starting slurmd version 24.05 with > SlurmdSpoolDir files that have been upgraded to a newer major version of > Slurm. Log warnings instead. > -- Fix race condition in stepmgr step completion handling. > -- Fix slurmctld segfault with stepmgr and MpiParams when running a job array. > -- Fix requeued jobs keeping their priority until the decay thread happens. > -- slurmctld - Fix crash and possible split brain issue if the > backup controller handles an scontrol reconfigure while in control > before the primary resumes operation. > -- Fix stepmgr not getting dynamic node addrs from the controller > -- stepmgr - avoid "Unexpected missing socket" errors. > -- Fix `scontrol show steps` with dynamic stepmgr > -- Support IPv6 in configless mode

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node3 not working - down
by Steven Jones 10 Dec '24

10 Dec '24

Hi, As suggested, 8><--- Stop their services, start them manually one by one (ctld first), then watch whether they talk to each other, and if they don't, learn what stops them from doing so - then iterate editing the config, "scontrol reconfig", lather, rinse, repeat. 8><--- Error logs, On node3, ======== [2024-12-09T21:43:10.694] slurmd started on Mon, 09 Dec 2024 21:43:10 +0000 [2024-12-09T21:43:10.694] CPUs=20 Boards=1 Sockets=20 Cores=1 Threads=1 Memory=48269 TmpDisk=23308 Uptime=3703 CPUSpecList=(null) FeaturesAvail=(null) FeaturesActive=(null) [2024-12-09T23:38:56.645] error: Munge decode failed: Rewound credential [2024-12-09T23:38:56.645] auth/munge: _print_cred: ENCODED: Tue Dec 10 23:38:30 2024 [2024-12-09T23:38:56.645] auth/munge: _print_cred: DECODED: Mon Dec 09 23:38:56 2024 [2024-12-09T23:38:56.645] error: Check for out of sync clocks [2024-12-09T23:38:56.645] error: slurm_receive_msg_and_forward: g_slurm_auth_verify: REQUEST_PING has authentication error: Invalid authentication credential [2024-12-09T23:38:56.645] error: slurm_receive_msg_and_forward: Protocol authentication error [2024-12-09T23:38:56.655] error: service_connection: slurm_receive_msg: Protocol authentication error [2024-12-10T01:13:18.454] Slurmd shutdown completing ====== I have checked the time, this is fine munge.key I ran md5sum over it and get the same output. When I reboot the warewulf nodes its a common Container file so 1~2 working but not 3 is just wierd. On the controller, ========= [2024-12-10T01:30:35.108] Node node2 appears to have a different version of Slurm than ours. Please update at your earliest convenience. [2024-12-10T01:30:35.109] Node node1 appears to have a different version of Slurm than ours. Please update at your earliest convenience. [2024-12-10T01:30:35.109] Node node6 appears to have a different version of Slurm than ours. Please update at your earliest convenience. [2024-12-10T01:30:35.109] Node node7 appears to have a different version of Slurm than ours. Please update at your earliest convenience. [2024-12-10T01:30:35.110] Node node3 appears to have a different version of Slurm than ours. Please update at your earliest convenience. [2024-12-10T01:30:35.110] Node node5 appears to have a different version of Slurm than ours. Please update at your earliest convenience. [2024-12-10T01:30:35.110] Node node4 appears to have a different version of Slurm than ours. Please update at your earliest convenience. [2024-12-10T01:30:36.104] SchedulerParameters=default_queue_depth=100,max_rpc_cnt=0,max_sched_time=2,partition_job_depth=0,sched_max_job_start=0,sched_min_interval=2 ========== So the controller is RHEL9 and the nodes Rocky8 However 1~2 and 4~7 work OK. When I run, [root@vuwunicoslurmd1 log]# scontrol show node node3 NodeName=node3 Arch=x86_64 CoresPerSocket=1 CPUAlloc=0 CPUEfctv=20 CPUTot=20 CPULoad=0.00 AvailableFeatures=(null) ActiveFeatures=(null) Gres=(null) NodeAddr=node3 NodeHostName=node3 Version=20.11.9 OS=Linux 4.18.0-553.30.1.el8_10.x86_64 #1 SMP Tue Nov 26 18:56:25 UTC 2024 RealMemory=48000 AllocMem=0 FreeMem=43378 Sockets=20 Boards=1 State=DOWN ThreadsPerCore=1 TmpDisk=0 Weight=1 Owner=N/A MCS_label=N/A Partitions=debug BootTime=2024-12-09T20:41:27 SlurmdStartTime=2024-12-10T01:13:25 LastBusyTime=2024-12-10T01:30:31 CfgTRES=cpu=20,mem=48000M,billing=20 AllocTRES= CapWatts=n/a CurrentWatts=0 AveWatts=0 ExtSensorsJoules=n/s ExtSensorsWatts=0 ExtSensorsTemp=n/s Reason=Node unexpectedly rebooted [slurm@2024-12-09T20:40:27] [root@vuwunicoslurmd1 log]# I get a reason, its like the node is held down / off, does this need to be / can this be cleared? regards Steven

2 2

Job not starting
by Diego Zuccato 10 Dec '24

10 Dec '24

Hello all. An user reported that a job wasn't starting, so I tried to replicate the request and I get: -8<-- [root@ophfe1 root.old]# scontrol show job 113936 JobId=113936 JobName=test.sh UserId=root(0) GroupId=root(0) MCS_label=N/A Priority=1 Nice=0 Account=root QOS=long JobState=PENDING Reason=Priority Dependency=(null) Requeue=1 Restarts=0 BatchFlag=1 Reboot=0 ExitCode=0:0 RunTime=00:00:00 TimeLimit=2-00:00:00 TimeMin=N/A SubmitTime=2024-12-06T13:19:36 EligibleTime=2024-12-06T13:19:36 AccrueTime=2024-12-06T13:19:36 StartTime=Unknown EndTime=Unknown Deadline=N/A SuspendTime=None SecsPreSuspend=0 LastSchedEval=2024-12-06T13:21:32 Scheduler=Backfill:* Partition=m3 AllocNode:Sid=ophfe1:855189 ReqNodeList=(null) ExcNodeList=(null) NodeList= NumNodes=1-1 NumCPUs=96 NumTasks=96 CPUs/Task=1 ReqB:S:C:T=0:0:*:* TRES=cpu=96,mem=95000M,node=1,billing=1296 Socks/Node=* NtasksPerN:B:S:C=0:0:*:* CoreSpec=* MinCPUsNode=1 MinMemoryNode=95000M MinTmpDiskNode=0 Features=(null) DelayBoot=00:00:00 OverSubscribe=OK Contiguous=0 Licenses=(null) Network=(null) Command=/home/root.old/test.sh WorkDir=/home/root.old StdErr=/home/root.old/%N-%J.err StdIn=/dev/null StdOut=/home/root.old/%N-%J.out Power= [root@ophfe1 root.old]# scontrol sho partition m3 PartitionName=m3 AllowGroups=ALL DenyAccounts=formazione AllowQos=ALL AllocNodes=ALL Default=NO QoS=N/A DefaultTime=NONE DisableRootJobs=NO ExclusiveUser=NO GraceTime=0 Hidden=NO MaxNodes=UNLIMITED MaxTime=UNLIMITED MinNodes=0 LLN=NO MaxCPUsPerNode=UNLIMITED Nodes=mtx20 PriorityJobFactor=1 PriorityTier=1 RootOnly=NO ReqResv=NO OverSubscribe=NO OverTimeLimit=NONE PreemptMode=CANCEL State=UP TotalCPUs=192 TotalNodes=1 SelectTypeParameters=CR_SOCKET_MEMORY JobDefaults=(null) DefMemPerNode=UNLIMITED MaxMemPerNode=UNLIMITED TRES=cpu=192,mem=1150000M,node=1,billing=2592 TRESBillingWeights=CPU=13.500,Mem=2.2378G [root@ophfe1 root.old]# scontrol show node mtx20 NodeName=mtx20 Arch=x86_64 CoresPerSocket=24 CPUAlloc=0 CPUEfctv=192 CPUTot=192 CPULoad=0.00 AvailableFeatures=ib,matrix,intel,avx ActiveFeatures=ib,matrix,intel,avx Gres=(null) NodeAddr=mtx20 NodeHostName=mtx20 Version=22.05.6 OS=Linux 4.18.0-372.9.1.el8.x86_64 #1 SMP Tue May 10 14:48:47 UTC 2022 RealMemory=1150000 AllocMem=0 FreeMem=1156606 Sockets=4 Boards=1 MemSpecLimit=2048 State=IDLE ThreadsPerCore=2 TmpDisk=0 Weight=8 Owner=N/A MCS_label=N/A Partitions=m3 BootTime=2024-12-06T10:01:42 SlurmdStartTime=2024-12-06T10:02:54 LastBusyTime=2024-12-06T10:51:58 CfgTRES=cpu=192,mem=1150000M,billing=2592 AllocTRES= CapWatts=n/a CurrentWatts=0 AveWatts=0 ExtSensorsJoules=n/s ExtSensorsWatts=0 ExtSensorsTemp=n/s -8<-- So the node is free, the partition does not impose extra limits (used only for accounting factors) but the job does not start. Any hints? Tks -- Diego Zuccato DIFA - Dip. di Fisica e Astronomia Servizi Informatici Alma Mater Studiorum - Università di Bologna V.le Berti-Pichat 6/2 - 40127 Bologna - Italy tel.: +39 051 20 95786

3 5

TRES cpu vs tasks
by Miriam Olmi 10 Dec '24

10 Dec '24

Hi all, I cannot understand the true difference and definition of "core", "task" and "cpu" within the limits associated to a partition via the TRES variable of a QOS. More precisely I have 2 partitions defined as follows: PartitionName=lprod AllowGroups=ALL AllowAccounts=ALL AllowQos=ALL AllocNodes=ALL Default=NO QoS=lprod_part DefaultTime=NONE DisableRootJobs=NO ExclusiveUser=NO GraceTime=0 Hidden=NO MaxNodes=UNLIMITED MaxTime=1-00:00:00 MinNodes=0 LLN=NO MaxCPUsPerNode=UNLIMITED MaxCPUsPerSocket=UNLIMITED Nodes=r037c01s[01-12] PriorityJobFactor=1 PriorityTier=1 RootOnly=NO ReqResv=NO OverSubscribe=NO OverTimeLimit=NONE PreemptMode=OFF State=UP TotalCPUs=432 TotalNodes=12 SelectTypeParameters=NONE JobDefaults=(null) DefMemPerNode=UNLIMITED MaxMemPerNode=UNLIMITED TRES=cpu=432,mem=12M,node=12,billing=432 PartitionName=bprod AllowGroups=ALL AllowAccounts=ALL AllowQos=ALL AllocNodes=ALL Default=NO QoS=bprod_part DefaultTime=NONE DisableRootJobs=NO ExclusiveUser=NO GraceTime=0 Hidden=NO MaxNodes=UNLIMITED MaxTime=1-00:00:00 MinNodes=0 LLN=NO MaxCPUsPerNode=UNLIMITED MaxCPUsPerSocket=UNLIMITED Nodes=r037c01s[01-12] PriorityJobFactor=1 PriorityTier=1 RootOnly=NO ReqResv=NO OverSubscribe=NO OverTimeLimit=NONE PreemptMode=OFF State=UP TotalCPUs=432 TotalNodes=12 SelectTypeParameters=NONE JobDefaults=(null) DefMemPerNode=UNLIMITED MaxMemPerNode=UNLIMITED TRES=cpu=432,mem=12M,node=12,billing=432 with the two qos defined as: Name Priority GraceTime PreemptMode UsageFactor MaxJobsPU MaxSubmitPU MaxTRES MinTRES Flags -------------------- ---------- ---------- ----------- ----------- --------- ----------- -------------------- -------------------- -------------------------------------------------- lprod_part 0 00:00:00 cluster 1.000000 100 120 cpu=32,mem=366G cpu=1 DenyOnLimit,PartitionMaxNodes,PartitionMinNodes bprod_part 0 00:00:00 cluster 1.000000 100 120 cpu=64,mem=366G cpu=33 DenyOnLimit,OverPartQOS If I try to submit a job on the lprod partition with the directives: #SBATCH --nodes=12 #SBATCH --ntasks-per-node=1 the job is executed correctly while it is not executed if submitted on the bprod partition due to the error: sbatch: error: QOSMinCpuNotSatisfied sbatch: error: Batch job submission failed: Job violates accounting/QOS policy (job submit limit, user's size and/or time limits) I understand that this is related to the limit of cpu associated to the partition via the qos: lprod->[1-32]cpus, bprod->[33-64]cpus but I would like to have a more proper explanation since the options I am using are not referring to "cpu" but to "tasks" and I could not find a proper definition of "cpu" in the framework of the TRES. Many thanks in advance. Best, Miriam

2 2

slurm nodes showing down*
by Steven Jones 09 Dec '24

09 Dec '24

I have just rebuilt all my nodes and I see Only 1 & 2 seem available? While 3~6 are not 3's log, [root@node3 log]# tail slurmd.log [2024-12-08T21:45:51.250] CPU frequency setting not configured for this node [2024-12-08T21:45:51.251] slurmd version 20.11.9 started [2024-12-08T21:45:51.252] slurmd started on Sun, 08 Dec 2024 21:45:51 +0000 [2024-12-08T21:45:51.252] CPUs=20 Boards=1 Sockets=20 Cores=1 Threads=1 Memory=48269 TmpDisk=23324 Uptime=30 CPUSpecList=(null) FeaturesAvail=(null) FeaturesActive=(null) [root@node3 log]# And 7 doesnt want to talk to the controller. [root@node7 slurm]# sinfo slurm_load_partitions: Zero Bytes were transmitted or received [root@node7 slurm]# These are all rebuilt and 1~3 are identical and 4~7 are identical. 7's log keep saying, [2024-12-08T21:49:17.246] error: Unable to register: Zero Bytes were transmitted or received [2024-12-08T21:49:18.263] error: Unable to register: Zero Bytes were transmitted or received [2024-12-08T21:49:19.278] error: Unable to register: Zero Bytes were transmitted or received [2024-12-08T21:49:20.294] error: Unable to register: Zero Bytes were transmitted or received [2024-12-08T21:49:21.310] error: Unable to register: Zero Bytes were transmitted or received [root@vuwunicoslurmd1 slurm]# sinfo PARTITION AVAIL TIMELIMIT NODES STATE NODELIST debug* up infinite 2 idle* node[1-2] debug* up infinite 4 down* node[3-6] [root@vuwunicoslurmd1 slurm]# regards Steven

2 4

error and output files
by michaelmorgan937＠gmail.com 09 Dec '24

09 Dec '24

Hi all, I have a program (for example x.x). When I run it as "x.x -I input -o output", I will get an "output" file, as well as output and error files from slurm. However, all the content of slurm output file is in the "output" file (and there are some extra content), so it is a waste to print the slurm output. Is it possible to set directives so that slurm only print error file? Thank you very much. Michael Morgan

2 1