Intel® MPI Library

What's New

This document reflects the updates for Intel® MPI Library 2017 Update 3 release for Linux* OS:

The following latest changes in this document were made:

Intel MPI Library 2017 Update 3

  • I_MPI_JOB_FAST_STARTUP is now intended for OFI and TMI fabrics only

  • Default value change for I_MPI_FABRICS_LIST

Intel MPI Library 2017 Update 2

Cleanup Utility


Clean up the environment after an abnormally terminated MPI run under the mpiexec.hydra process manager.


mpicleanup <arguments>


-i <input_file> |
--input <input_file>

Fault Tolerance Support

Intel® MPI Library provides extra functionality to enable fault tolerance support in MPI applications. The MPI standard does not define behavior of MPI implementation if one or several processes of an MPI application are abnormally aborted. By default, Intel® MPI Library aborts the whole application if any process stops.


Turn on/off support for fault tolerant applications.



Statistics Gathering Mode

Intel® MPI Library provides the built-in statistics gathering facility that provides essential information about MPI program execution. You can use the native or IPM statistics formats or both at once. See description of the environment variables controlling statistics collection below:

Intel® MPI Library 2017 Update 3 Readme

The Intel® MPI Library is a high-performance interconnect-independent multi-fabric library implementation of the industry-standard Message Passing Interface, v3.1 (MPI-3.1) specification.  This package is for MPI users who develop on and build for Intel® 64 architectures on Linux* and Windows*, as well as customers running on the Intel® Xeon Phi™ product family.  You must have a valid license to download, install, and use this product.

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