Swedish National Infrastructure for Computing

PDC, KTH Royal Institute of Technology

Beskow is a Cray XC40 system consisting of 2,060 compute nodes and has a theoretical peak performance of 2.44 PFlop/s. The interconnect is a Cray Aries high-speed network in a Dragonfly topology with six groups.  Nine out of the eleven cabinets that make up Beskow are equipped with nodes that have dual 16-core Intel Haswell CPUs (2.3 GHz) and 64 GB of memory; the nodes in the other two cabinets have dual 18-core Intel Broadwell CPUs (2.1 GHz) and 128 GB of memory. Overall the system has 67,456 cores and a total of 156 TB of memory. The Beskow system is dedicated for running massively parallel jobs, so typical job sizes should normally be in the order of thousands of cores.

Pre- and post-processing facilities for jobs on Beskow are available via PDC's Tegner system. Tegner is a heterogeneous cluster with a total of 69 nodes and 1992 cores. Fifty-six of the nodes have 512 GB of memory, five of the nodes each have either 1 TB or 2 TB of memory, and one node has 4.6 TB of memory. The last two nodes are dedicated to transferring input and output data to and from PDC. Most of the nodes are equipped with workstation-class GPUs (NVIDIA K420) that are primarily used for off-screen rendering and visualization. Nine of the nodes have considerably faster NVIDIA K80 GPUs which are also suitable for computational tasks. All SNIC projects that are awarded time allocations on Beskow are also given an allowance of time on Tegner for pre- and/or post-processing.

Mass storage

A number of storage options are available at PDC.

For more information regarding the systems and available software on the systems, visit the PDC web pages at http://www.pdc.kth.se/