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Status Planned for future release
Workspace Spectrum LSF
Components Scheduling
Created by Guest
Created on Sep 27, 2023

Group jobs to same cluster when using bsub -cluster feature


Group together lsf jobs, "regression", in such a way that bsub -cluster feature directs all jobs in the group to the same cluster.


a) bsub submits all jobs in a job array to a single cluster

bsub -cluster all -J "ArrayName[1-10]" // LSF forwards ArrayName to initially best selected cluster for given resources

This is not sufficient by itself as a regression may contain a mix of arrays and single jobs.

b) bsub supports a cluster affinity tag

bsub -cluster all -clusterAffinityId=<UID> // LSF forwards all jobs with same id to same cluster

The first time LSF sees a new UID, it adds a mapping to a table

Every time a job is bsubbed, LSF increments the job_count associated with the UID

When a job is retired from LSF, LSF decrements the job_count

When job_count reaches zero, the mapping is removed.

Needed By Quarter
  • Admin
    Bill McMillan
    Nov 23, 2023

    There is no immediate solution to this requirement, although it does align with our longer term direction of modernizing multicluster. Michael Spriggs will continue to investigate this.