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Computing and storage resources which were installed between 2004 and 2015 and scheduled to be decommissioned in the next few years are referred to as ''legacy resources''. The legacy resources are administered by regional organizations, one of [http://www.ace-net.ca/ ACENET], [http://cac.queensu.ca/ the Centre for Advanced Computing], [http://www.calculquebec.ca/en/ Calcul Québec], [http://www.scinethpc.ca/ SciNet], [https://www.sharcnet.ca/my/front/ SHARCNET], and [https://www.westgrid.ca/ WestGrid]. To use a legacy resource you must have an account with one of these entities; you can apply for an account through [https://ccdb.computecanada.ca/me/facilities CCDB]. Resources deployed during and after 2016 will not require this step, nor will the two [[CC-Cloud|clouds]]. | Computing and storage resources which were installed between 2004 and 2015 and scheduled to be decommissioned in the next few years are referred to as ''legacy resources''. The legacy resources are administered by regional organizations, one of [http://www.ace-net.ca/ ACENET], [http://cac.queensu.ca/ the Centre for Advanced Computing], [http://www.calculquebec.ca/en/ Calcul Québec], [http://www.scinethpc.ca/ SciNet], [https://www.sharcnet.ca/my/front/ SHARCNET], and [https://www.westgrid.ca/ WestGrid]. To use a legacy resource you must have an account with one of these entities; you can apply for an account through [https://ccdb.computecanada.ca/me/facilities CCDB]. Resources deployed during and after 2016 will not require this step, nor will the two [[CC-Cloud|clouds]]. | ||
Most | Most legacy clusters are classified as either capacity clusters or capability clusters. ''Capacity clusters'' contain nodes connected to each other by a relatively slow Ethernet network, while the ''capability clusters'' have a fast network, usually InfiniBand. Large parallel jobs will run better on capability clusters than capacity clusters, while smaller jobs will run almost anywhere. | ||
There are some specialty clusters among the legacy resources. Applications which require more than 512 GB of memory per node require ''large shared memory systems''. Compute Canada has four such systems: | There are some specialty clusters among the legacy resources. Applications which require more than 512 GB of memory per node require ''large shared memory systems''. Compute Canada has four such systems: | ||