Scheduling

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Affinity support for windows compute servers

We have a mixed Linux/Windows cluster. Unfortunately the affinity string in the resource requirement is not supported on Windows. This leads to several problems: 1. jobs with affinity settings will not be dispatched to windows nodes 2. less perfor...

5 days ago in Spectrum LSF / Scheduling 0 Submitted

3 VOTE

Add possibility to assign cores from the same CCX in AMD CPUs to make use of the same L3 cache.

With a specific 2-core workload we noticed significant performance improvements of about 50% in shorter runtime when both cores reside on the same L3 cache group (CCX) of an AMD EPYC CPU.Therefore it would be very beneficial to be able to have LSF...

13 days ago in Spectrum LSF / Scheduling 0 Submitted

1 VOTE

Use all applicable NUMA Memory information on a machine to determine available Memory resources before dispatching a job to a machine

We were noticing that jobs were being terminated by LSF with the message: TERM_MEMLIMIT: job killed after reaching LSF memory usage limit.Exited with exit code 137. Yet, this was happening before the job had even consumed the amount of memory rese...

about 2 months ago in Spectrum LSF / Scheduling 0 Under review

4 VOTE

allow to limit cpu usage to the number of slots requested

Hello,, currently, when a user submit a job, there's no way in LSF to limit the cpu consumption. recently, we discover that it's possible to limit cpu usage OS side using cgroup, by putting a value in the 'cpu.cfs_quota_us' file of the '/sys/fs/...

7 months ago in Spectrum LSF / Scheduling 0 Future consideration

2 VOTE

Enable option for hardcoding GPU memory request like its available for CPU memory request

At this moment IBM offers features of hardcoding CPU memory. We have implemented this feature in our cluster with esub scripting. Similarly we want to have same feature available for GPU memmory (gmem) to be hardcoded. I have raised ticket to our ...

4 months ago in Spectrum LSF / Scheduling 2 Not under consideration

1 VOTE

LSF to control SSH sessions on hosts running LSF jobs

We have many users who need to open an SSH session from their IDE ( VSCode, PyCharm) to a cluster machine running their LSF job so they can debug/troubleshoot/test in realtime in an interactive session. While battach works to connect to a cluster ...

about 2 months ago in Spectrum LSF / Scheduling 2 Under review

1 VOTE

LSF to track SSH and child processes on machines running LSF jobs

To prevent users from sshing into nodes that they do not have a running job on, to restrict the SSH session to the resources that the runing job has on the machine (e.g. cgroups ), to track the ssh connection and any other spawned processes for ac...

about 2 months ago in Spectrum LSF / Scheduling 0 Under review

6 VOTE

job select statement improvement

I have hosts with exclusive resources and some with a dynamic resource. A few hosts have two exclusive resources. The job submit: $ bsub -R 'select[ defined(res1) || (defined(res2) && dynamic_pool==loaner_host)]' I would expect this job to...

about 1 year ago in Spectrum LSF / Scheduling 2 Future consideration

3 VOTE

LSF connector error while configuring K8s

kubectl create -f $LSF_BINDIR/../../misc/kubernetes/parallelJob-v1alpha1.yaml > /tmp/IBM/parallelJob-v1alpha1.yaml.log error: resource mapping not found for name: "paralleljobs.ibm.com" namespace: "" from "/home/shared/lsfhome/10.1/linux3.10-...

8 months ago in Spectrum LSF / Scheduling 1 Future consideration

1 VOTE

Allow preemption of shared gpu jobs (j_exclusive=no) by higher priority job queues.

We need the LSF support for preemption of shared gpu jobs. Currently GPU preemption is supported only for jobs in mode j_exclusive=yes This is a very big problem as we have a significant waste of gpu memory resource. because if a lower priority jo...

3 months ago in Spectrum LSF / Scheduling 1 Not under consideration

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