Intel® MPI Library Tuning Files

Nataliya Komleva

Overview

This page provides the latest tuning files that help you get the best performance on particular hardware.

There are two ways to use the configuration files:

Replace the tuning file in $I_MPI_ROOT/intel64/etc/.dat (for example, tuning_skx_shm-ofi.dat ). Do not rename tuning files before copying them to the $I_MPI_ROOT/intel64/etc/ directory; the file names are predefined by the Intel® MPI Library.
Note: This action may require super privileges if Intel MPI Library is installed in a shared folder.
Substitute tuning settings using the I_MPI_TUNING_BIN environment variable:
export I_MPI_TUNING_BIN=/.dat
where is a path to the file on a shared file system (for example, tuning_skx_shm-ofi.dat). Please note that any file name can be used.

File name	`tuning_skx_shm-ofi.dat`
File Size	126 Kb
Date of publication	06/06/2019
Target H/W configuration	Intel® Xeon® Scalable Processor, Cornelis Networks
Notes	General tuning. Should be applied to cluster systems based on the Intel® Xeon Scalable Processor and Cornelis Networks interconnect.

File name	`tuning_skx_shm-ofi.dat`
File Size	492 Kb
Date of publication	06/11/2019
Target H/W configuration	Intel® Xeon® Scalable Processor, Elastic Fabric Adapter (EFA).
Notes	Tuning for AWS Cloud EC2 instances with EFA. EFA is a network interface for Amazon EC2 instances that enables you to run High Performance Computing (HPC) applications that require a high level of inter-instance communications, for example, computational fluid dynamics, weather modeling, and reservoir simulation, at scale on AWS.

File name	`tuning_skx_shm-ofi.dat`
File Size	116 Kb
Date of publication	05/23/2019
Target H/W configuration	Intel® Xeon® Scalable Processor, Cornelis Networks
Notes	General tuning. Should be applied to cluster systems based on the Intel® Xeon Scalable Processor and Cornelis Networks interconnect.