We use cookies to ensure that we give you the best experience on our website. You can change your cookie settings at any time. Otherwise, we'll assume you're OK to continue.

Durham University



COSMA5 has approximately 300 compute nodes, each with 128GB RAM and 16 cores (2x Intel Xeon CPU E5-2670 0 @ 2.60GHz). These have a Sandy Bridge architecture.

The nodes are connected via Mellanox FDR10 Infiniband switches in a 2:1 blocking configuration. Access is enabled through two login/development servers each with 512GB of memory. Previously, there was a 2.5PB GPFS file system (DDN ExaScalar). However in early 2020, this was replaced by a 650TB Lustre system (Dell), later updated to 1.6PB, replacing 2.5 racks of equipment drawing 26kW with 1/6th of a rack drawing 1.5kW.

COSMA logo