Exercise session 9: Cray MPICH

The files for the exercises can be found in Exercises/HPE/day3/PRogrammingModels. Test the Pi example with MPI or MPI/OpenMP on 4 nodes and 4 tasks. Show where the ranks/threads are running by using the appropriate MPICH environment variable. Use environment variables to change this order (rank-reordering).

Alternatively, continue with the previous exercises if these are more relevant for your work.

Materials

Archived materials on LUMI:

• Exercise assignments in /appl/local/training/4day-20231003/files/LUMI-4day-20231003-Exercises_HPE.pdf

• Exercises as bizp2-compressed tar file in /appl/local/training/4day-20231003/files/LUMI-4day-20231003-Exercises_HPE.tar.bz2

• Exercises as uncompressed tar file in /appl/local/training/4day-20231003/files/LUMI-4day-20231003-Exercises_HPE.tar

Q&A

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