BlueBEAR Large Memory Service

Some BlueBEAR jobs require more memory, on a single node, than is available on the standard nodes. The bblargemem QOS provides nodes with up to 498GB RAM.

Access to the BlueBEAR Large Memory Service

To request access to the large memory nodes please contact us through the IT Service Portal. We may ask to see an example of a BlueBEAR job that has failed due to insufficient memory prior to granting access to this service.

Using the BlueBEAR Large Memory Service

To use one of the large memory nodes, add

#SBATCH --qos bblargemem
#SBATCH --account [projectname]
#SBATCH --mem [mem]

to your job submission script, where [projectname] is a project that has access to the large memory service; and [mem] is the amount of memory your job requires - usually specified as the amount (in GB), e.g. 200G. If, when you submit a large memory job, you receive an error message of

sbatch: error: Batch job submission failed: Invalid qos specification

then either you are not a member of a project that has access to the large memory service or the project you specified does not have access to the large memory service.

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