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Communication Fabrics Control
I_MPI_FABRICS
Select the particular fabrics to be used.
Syntax
I_MPI_FABRICS=ofi | shm
Arguments
<fabric> | Define a network fabric. |
shm | Shared memory transport (used for intra-node communication only). |
ofi | OpenFabrics Interfaces* (OFI)-capable network fabrics, such as Intel® Omni-Path Architecture, InfiniBand*, and Ethernet (through OFI API). |
Description
Set this environment variable to select a specific fabric combination.
NOTE:
This option is not applicable to slurm and pdsh bootstrap servers.
Parent topic: Environment Variables for Fabrics Control