Scheduling

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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...

almost 3 years ago in Spectrum LSF / Scheduling 2 Future consideration

4 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...

about 2 years ago in Spectrum LSF / Scheduling 0 Planned for future release

4 VOTE

Set a limit for service class

It would be useful to set a limit in lsb.resources for Serive Class "SLA" in order give some minimum guarantee with SLA and set a maximium number of resorucese usable in this SLA.It would be excellent to indicate the limit with the number of nodes...

almost 5 years ago in Spectrum LSF / Scheduling 1 Not under consideration

3 VOTE

Increase available number of global job ids for LSF

Current job id is limited to 32b. With ever growing number of jobs and scaling of multi-cluster use, the job id should be extended beyond 32b to avoid frequent rollover situations and/or cases of redundant ids. Recommend to increase to 64b or more.

4 months ago in Spectrum LSF / Scheduling 0 Planned for future release

3 VOTE

Affinity scheduling must take L3 cache hierarchy into account

Newer CPUs have multiple L3 caches, with dedicated cores per L3 cache. Running multi-threaded jobs on all cores within a shared L3 cache can reduce runtime in our cases up 70%, compared to running over multiple L3 caches. Think of the AMD EPYC 935...

8 months ago in Spectrum LSF / Scheduling 2 Planned for future release

3 VOTE

bjobs -o reserved_mem or bhosts -o reserved_mem

To see how much memory is reserved on a host, we need to parse the bhosts -l <hostname> command, and it doesn't give us info about which job is reserving how much memory. I'd either like to see one of the following: bhosts -o 'jobid reserved...

over 2 years ago in Spectrum LSF / Scheduling 1 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-...

over 2 years ago in Spectrum LSF / Scheduling 1 Future consideration

3 VOTE

Enhance GSLA to enable in-queue preemption

The Guaranteed SLA system allows sharing of Resources defined by ServiceClasses. We would like to use that to allow two or more groups to pool and share compute slots, wherein they typically unused slots would be available to all of the groups. Th...

over 4 years ago in Spectrum LSF / Scheduling 1 Not under consideration

2 VOTE

Map memory reservation to cgroup memory.low

Mapping the memory reservation of a job to the cgroup memory.low could protect jobs from running short on memory, while in parallel allowing more memory to be used if it's available. The soft limit instead of a hard limit should prevent users to b...

8 months ago in Spectrum LSF / Scheduling 2 Future consideration

2 VOTE

Enhance lsmake4 to support Grouped Target's in the latest version of make 4.4.1

Currently our tools are using Grouped Target's which don't properly work causing quite a bit of rework after the initial compile.

over 1 year ago in Spectrum LSF / Scheduling 0 Planned for future release

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