Using the different parts of Kebnekaise

Since Kebnekaise consists of several different node types using them correctly takes a bit of getting used to.

Batch system examples

We have made a few examples of how to use the batch system, both from the command line and through a batch submit file.

Overview of the Batch system examples subpages:

Connecting from Linux/Unix

If you are connecting to HPC2N from a computer running Linux or Unix, you have a number of options. The most obvious and commonly used one is probably the built-in SSH client SSH. Several others exist, here are some of the more common ones:

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:

Example for running VASP on Kebnekaise

VASP has been built in both a normal CPU-only version and a GPU-enabled version.

Depending on which toolchain is loaded one or the other is available.

Use ml spider vasp to see which versions are available, and then look at the specific versions with ml spider VASP/<some-version>, to see which toolchains are available.