Intel® MPI Library Developer Reference for Windows* OS

ID 768734
Date 3/31/2023
Public

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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.