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Narval is a general purpose cluster designed for a variety of workloads and situated at the [http://www.etsmtl.ca/ École de technologie supérieure] in Montreal. The cluster is named in honour of the [https://en.wikipedia.org/wiki/Narwhal Narwhal], a whale which has sometimes been observed in the Gulf of St. Lawrence. | Narval is a general purpose cluster designed for a variety of workloads and situated at the [http://www.etsmtl.ca/ École de technologie supérieure] in Montreal. The cluster is named in honour of the [https://en.wikipedia.org/wiki/Narwhal Narwhal], a whale which has sometimes been observed in the Gulf of St. Lawrence. | ||
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=Site-specific policies= | =Site-specific policies= | ||
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Crontab is not offered on Narval. | Crontab is not offered on Narval. | ||
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Each job on Narval should have a duration of at least one hour (five minutes for test jobs) and a user cannot have more than 1000 jobs, running and queued, at any given moment. The maximum duration for a job on Narval is 7 days (168 hours). | Each job on Narval should have a duration of at least one hour (five minutes for test jobs) and a user cannot have more than 1000 jobs, running and queued, at any given moment. The maximum duration for a job on Narval is 7 days (168 hours). | ||
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=Storage= | =Storage= | ||
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| HOME <br> Lustre filesystem, ~100 TB of space || | | HOME <br> Lustre filesystem, ~100 TB of space || | ||
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*Location of home directories, each of which has a small fixed quota. | *Location of home directories, each of which has a small fixed quota. | ||
*You should use the <code>project</code> space for larger storage needs. | *You should use the <code>project</code> space for larger storage needs. | ||
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*There is a daily backup of the home directories. | *There is a daily backup of the home directories. | ||
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| SCRATCH <br> Lustre filesystem, ~5 PB of space || | | SCRATCH <br> Lustre filesystem, ~5 PB of space || | ||
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*Large space for storing temporary files during computations. | *Large space for storing temporary files during computations. | ||
*No backup system in place. | *No backup system in place. | ||
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*There is an [[Scratch_purging_policy | automated purge]] of older files in this space. | *There is an [[Scratch_purging_policy | automated purge]] of older files in this space. | ||
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| PROJECT <br> Lustre filesystem, ~15 PB of space || | | PROJECT <br> Lustre filesystem, ~15 PB of space || | ||
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*This space is designed for sharing data among the members of a research group and for storing large amounts of data. | *This space is designed for sharing data among the members of a research group and for storing large amounts of data. | ||
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*There is a daily backup of the project space. | *There is a daily backup of the project space. | ||
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For transferring data via Globus, you should use the endpoint <code>computecanada#beluga-dtn</code>, while for tools like rsync and scp you can use a login node. | For transferring data via Globus, you should use the endpoint <code>computecanada#beluga-dtn</code>, while for tools like rsync and scp you can use a login node. | ||
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=High-performance interconnect= | =High-performance interconnect= | ||