Translations:Cedar/5/en: Difference between revisions

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Revision as of 18:40, 22 November 2016

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Message definition (Cedar)
{| class="wikitable sortable"
|-
| <b>Home space</b><br /> 526TB total volume||
* Location of /home directories.
* Each /home directory has a small fixed [[Storage and file management#Filesystem_quotas_and_policies|quota]].
* Not allocated via [https://alliancecan.ca/en/services/advanced-research-computing/accessing-resources/rapid-access-service RAS] or [https://alliancecan.ca/en/services/advanced-research-computing/accessing-resources/resource-allocation-competition RAC]. Larger requests go to the /project space.
* Has daily backup
|-
| <b>Scratch space</b><br /> 5.4PB total volume<br />Parallel high-performance filesystem ||
* For active or temporary (scratch) storage.
* Not allocated.
* Large fixed [[Storage and file management#Filesystem_quotas_and_policies|quota]] per user.
* Inactive data will be [[Scratch purging policy|purged]].
|-
|<b>Project space</b><br />23PB total volume<br />External persistent storage
||
* Not designed for parallel I/O workloads. Use /scratch space instead.
* Large adjustable [[Storage and file management#Filesystem_quotas_and_policies|quota]] per project.
* Has daily backup.
|}
$HOME

Standard home directory
Not allocated
Small, standard quota
Larger requests should be on $PROJECT

$SCRATCH
Parallel High-performance filesystem

Approximately 4PB usable capacity for temporary (/scratch) storage.
Aggregate performance of approximately 40GB/s. Available to all nodes.
Not allocated
Purged - inactive data will be purged

$PROJECT
External persistent storage

Provided by the NDC.
Available to compute nodes, but not designed for parallel i/o workloads.

High performance interconnect

Low-latency high-performance fabric connecting all nodes and temporary storage.
The design of GP2 is to support multiple simultaneous parallel jobs of at least 1024 cores in a fully non-blocking manner. Jobs larger than 1024 cores would be less well-suited for the topology.

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