This repository contains small test cases (<5 min runtime) for the EuroHack'22 hackathon.

We will use the develop branch of Neko from the main repository: https://github.com/ExtremeFLOW/neko

Developer documentation for Neko is available at: https://extremeflow.github.io/neko

Each case provides its instructions but relies on a CUDA installation of Neko. To build Neko, please follow the general build instructions given in the Neko README to generate the configure scripts (regen.sh). Then follow the general CUDA instructions (ExtremeFLOW/neko#540), or the Piz Daint specific instructions (ExtremeFLOW/neko#601) depending on the target system.

Note: It's important to always configure Neko with a given installation prefix:

> ./configure --prefix=/path/to/neko/installation ...additional flags...

otherwise, tools like makeneko or the pkg-config files will not work.

• MPI I/O issues in MPI derived types if compiled with gfortran < 12.x.y and mpich
• Various issues with NVIDIA Fortran, due to its lack of certain Fortran 2008 features.