Uppsala Multidisciplinary Center for Advanced Computational Science



Intelmpi performance issues

In order to avoid the performance issues with intelmpi, please use this recommended by Intel way:

The I_MPI_PMI_LIBRARY environment is set in the module intelmpi to:
export I_MPI_PMI_LIBRARY=/usr/lib64/libpmi.so

Use the srun command to launch the mpi job:
srun -n <num_procs> a.out

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