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30 Use of large memory nodes
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Large memory nodes
Stallo has 50 compute nodes with 32GB memory each (the 654 others have 16GB memory).
Access
To use the large memory nodes you should ask for access to the highmem queue, just send a mail to support-uit@notur.no. After being granted access to the highmem queue you can submit directly to the queue:
qsub -q highmem .........
Remark: You only need to apply for access to the large memory nodes if you want to run jobs that have more than 48 hours walltime limit on these nodes.
Short jobs requiring less than 48 hours runtime can get assigned to the highmem nodes without running in the highmem queue. This can happen if you submit requiring more than 2gb memory per process:
qsub -lnodes=2:ppn=8,pmem=4gb,walltime=12:00:00 .........
