Using the Intel Xeon Phi 7250 (KNL) nodes

Intel Xeon Phi x200, codename Knights Landing (KNL), is second generation MIC architecture product from Intel. At HPC2N 36 nodes, as a part of Kebnekaise, are equipped with Intel Xeon Phi 7250 CPUs. See our description of Intel Knight Landing for more information about the nodes.

At a high level there are three key aspects to achieving code performance on KNL:

Slurm GPU Resources (Kebnekaise)

NOTE: your project need to have time on the GPU nodes to use them, as they are considered a separate resource now. To use them you use the SLURM command mentioned below. For V100s there is no specific partition you need to give, but there is for the A100s - see below.

We have two types of GPU cards available on Kebnekaise, NVIDIA Tesla V100 (Volta) and NVIDIA A100 (Ampere).

To request GPU resources one has to include a GRES in the submit file. The general format is: