Scheduling

Showing 46 of 15598

for loadSched memory if the submitted job has memory reservation the job should not be run if the nodes mem used + job memory reservation > loadSched memory limit

because users want to keep a certain amount of memory free. And currently the limit can be bypassed.

24 days ago in Spectrum LSF / Scheduling 0 Under review

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...

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

1 VOTE

Effective r15s/r1m/r15m values for job reservations

When using run queue length indices in rusage strings, there should be an option to have the value divided by ncpus. Since in the "total load used for scheduling" the r15s/r1m/r15m are taken from lsload -E and divided by the specific ncpus for tha...

about 1 month ago in Spectrum LSF / Scheduling 2 Not under consideration

1 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...

2 months ago in Spectrum LSF / Scheduling 2 Future consideration

1 VOTE

Keep job in memory for a specified time period

Allow job to be kept in memory for an extended amount of time beyond global setting

3 months ago in Spectrum LSF / Scheduling 0 Future consideration

1 VOTE

command-level job starters should work with bsub

According to https://www.ibm.com/docs/en/spectrum-lsf/10.1.0?topic=starters-about-job command-level job starters (using LSF_JOB_STARTER env variable) do not work Are user-defined. They run interactive jobs submitted using lsrun, lsgrun, or ch. Com...

3 months ago in Spectrum LSF / Scheduling 5 Is a defect

1 VOTE

Improve bsub rejection messages for troubleshooting

Improve the error messages returned from bsub failiure. For example, provide the rusage string and potentially specified what is wrong with rusage. Here is current failure message: Error in rusage section. Job not submitted.

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

1 VOTE

Add job group filter to bhist

The ability to find job groups via bhist command after the jobs have been removed from memory.

3 months ago in Spectrum LSF / Scheduling 0 Future consideration

1 VOTE

LSF job query filter on pending jobs without providing pending reasons

For large LSF clusters, the bjobs command takes significant time to gather the pending reasons (-p, -pei, -pe, -pi) making the query much longer than requesting all jobs. Suggest a new bjobs option to filter on pending jobs without supplying the p...

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

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...

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

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