Developer Reference

  • 2020
  • 09/11/2020
  • Public Content

This document contains content for both Intel® oneAPI and Intel® Parallel Studio XE Cluster Edition.
Developer Reference
provides you with the complete reference for the Intel
MPI Library. It is intended to help a user fully utilize the Intel MPI Library functionality. For examples and detailed functionality description, please refer to the Intel MPI Library Developer Guide.
To download the previous versions of documentation, refer to this page.
The following are some popular topics in the Intel MPI Library Developer Reference:
Command Reference
Command Reference provides reference information on compilation and runtime commands (mpirun, cpuinfo, impi_info) and describes how to use these commands.
Environment Variable Reference
Environment Variable Reference provides syntax, arguments, and descriptions for Fabrics Control, Tuning, Autotuning, Process Pinning, and I_MPI_ADJUST Family environment variables.
Global Options and Environment Variables for
Describes the Global Options and provides Environment Variables used with the Hydra process manager.
Mpitune Configuration Options
Tune your MPI application with the mpitune utility.

Product and Performance Information


Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804