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Niagara/fr: Difference between revisions
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* 1500 nodes, each with 40 Intel Skylake cores at 2.4GHz, for a total of 60,000 cores. | * 1500 nodes, each with 40 Intel Skylake cores at 2.4GHz, for a total of 60,000 cores. | ||
* | * 202 GB (188 GiB) of RAM per node. | ||
* EDR Infiniband network in a so-called 'Dragonfly+' topology. | * EDR Infiniband network in a so-called 'Dragonfly+' topology. | ||
* 5PB of scratch, 5+2PB of project space (parallel file system: IBM Spectrum Scale, formerly known as GPFS). | * 5PB of scratch, 5+2PB of project space (parallel file system: IBM Spectrum Scale, formerly known as GPFS). | ||
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* Computational perfomance: 3 TFlops (theoretical maximum) | * Computational perfomance: 3 TFlops (theoretical maximum) | ||
* Network connection: 100Gb/s EDR | * Network connection: 100Gb/s EDR | ||
* Memory: | * Memory: 202 GB (188 GiB) GB of RAM, i.e., a bit over 4GiB per core. | ||
* Local disk: none. | * Local disk: none. | ||
* Operating system: Linux CentOS 7 | * Operating system: Linux CentOS 7 | ||
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* Scheduling will be by node only. This means jobs will always need to use multiples of 40 cores per job. | * Scheduling will be by node only. This means jobs will always need to use multiples of 40 cores per job. | ||
* Asking for specific amounts of memory will not be necessary and is discouraged; all nodes have the same amount of memory ( | * Asking for specific amounts of memory will not be necessary and is discouraged; all nodes have the same amount of memory (202GB/188GiB minus some operating system overhead). | ||
Details, such as how to request burst buffer usage in jobs, are still being worked out. | Details, such as how to request burst buffer usage in jobs, are still being worked out. | ||