About Hawk

Hawk is located at Cardiff University and is available for Cardiff and Bangor users of Supercomputing Wales. Aberystwyth and Swansea users should use the Swansea Sunbird system instead.

Guest users from other institutions will be allowed access on the basis of the project & institutions they are working with.


System Specification:

  • 201 nodes, totalling 8,040 cores, 46.080 TBytes total memory
    • CPU: 2x Intel(R) Xeon(R) Gold 6148 CPU @ 2.40GHz with 20 cores each
    • RAM: 192 GB, 384GB on high memory and GPU nodes
    • GPU: 26x nVidia P100 GPUs with 16GB of RAM on 13 nodes
    • Storage:
      • 692TB (usable) scratch space on a Lustre filesystem
      • 420TB of home directory space over NFS



The available compute hardware is managed by the Slurm job scheduler and organised into ‘partitions’ of similar type/purpose. Jobs – both batch and interactive – should be targeted at the appropriate one. Limits on the partition are just defaults, we can provide access to different limits, for example to enable array jobs a higher number of submitted jobs maybe required. Please contact support if required.

Partition NameNumber of NodesPurposeMaximum running jobs per userMaximum submitted jobs per user
Compute134Parallel and MPI jobs1030
highmem26Large memory (384GB) jobs1020
GPU13GPU (CUDA) jobs510
HTC26High Throughput Serial jobs1040
dev2Testing and development12