The MPI Best Practices page needs to be updated to use the most recent commands for turning off high-speed internode communication. Specifically, the Intel command is not correct for the most recent version of Intel MPI installed on the Blanca nodes.
TODO:
Update the Intel command to be :
Intel - Single Node Jobs:
mpirun -genv I_MPI_FABRICS=shm
Intel - Multi-Node Jobs (Constain jobs to EDR IB (InfiniBand)):
mpirun -genv --contraint=edr
b-reyes
commented
17 hours ago
The MPI Best Practices page needs to be updated to use the most recent commands for turning off high-speed internode communication. Specifically, the Intel command is not correct for the most recent version of Intel MPI installed on the Blanca nodes.
TODO: Update the Intel command to be :
Intel - Single Node Jobs: mpirun -genv I_MPI_FABRICS=shm
Intel - Multi-Node Jobs (Constain jobs to EDR IB (InfiniBand)): mpirun -genv --contraint=edr
Documentation Page: https://curc.readthedocs.io/en/latest/programming/MPIBestpractices.html#running-mpi-on-blanca
Relevant Notes can be found in the ServiceNow Ticket: INC1149445