Translations:Running jobs/106/en: Difference between revisions

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Memory may be requested with <code>--mem-per-cpu</code> (memory per core) or <code>--mem</code> (memory per node). We recommend that you specify memory in megabytes (e.g. 8000M) rather than gigabytes (e.g. 8G). In many circumstances specifying memory requests in thousands of megabytes will result in shorter queue wait times than specifying gigabytes. For example, requesting <code>--mem=128G</code> (equivalent to 131072M) is more memory than is available for jobs on nodes with a nominal 128G . A job requesting <code>--mem=128G</code> qualifies for fewer nodes than one requesting <code>--mem=128000M</code>, and is therefore likely to wait longer. Similar reasoning also applies to <code>--mem-per-cpu</code> requests.
Memory may be requested with <code>--mem-per-cpu</code> (memory per core) or <code>--mem</code> (memory per node). On general-purpose (GP) clusters a default memory amount of 256 MB per core will be allocated unless you make some other request. At [[Niagara]] only whole nodes are allocated along with all available memory, so a memory specification is not required there.

Revision as of 12:58, 9 April 2019

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Message definition (Running jobs)
Memory may be requested with <code>--mem-per-cpu</code> (memory per core) or <code>--mem</code> (memory per node).  On general-purpose (GP) clusters, a default memory amount of 256 MB per core will be allocated unless you make some other request.  On [[Niagara]], only whole nodes are allocated along with all available memory, so a memory specification is not required there.

Memory may be requested with --mem-per-cpu (memory per core) or --mem (memory per node). On general-purpose (GP) clusters a default memory amount of 256 MB per core will be allocated unless you make some other request. At Niagara only whole nodes are allocated along with all available memory, so a memory specification is not required there.

General Purpose cluster: Béluga, Cedar, or Graham

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