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Durham University





COSMA 7 has 224 compute nodes, each with 512GB RAM and 28 cores (2x Intel Xeon Gold 5120 CPU @ 2.20GHz) giving it 6272 cores. The CPU is based on the skylake architecture.

COSMA7 has an additional 224 identical compute nodes connected using the Rockport switchless fabric.

The nodes are connected via Mellanox EDR Infiniband switches in a 2:1 blocking configuration. Access is enabled through three login/development servers each with 1.5TB of memory. Currently connected is a DELL storage system configured with 3.1 PB of data space (/cosma7), and a fast I/O storage with 440TB (/snap7) for temporary checkpointing. Both file systems are based on Lustre.

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