Developer Reference

What's New

This page lists changes to the product that are reflected in the documentation. For a list of all changes, refer to the Release Notes.

Intel® MPI Library 2021.6 (Intel® oneAPI 2022.2)

  • No documentation changes.

Intel® oneAPI 2021.5

  • Added
    argument for
  • Added option to Global Options topic.
  • Added
    variable to I_MPI_ADJUST Family Environment Variables topic.

Intel® oneAPI 2021.4

  • No documentation changes.

Intel® oneAPI 2021.3

  • Changed the default pinning order to
  • Added new value for the I_MPI_SHM variable (icx).
  • Added new variable I_MPI_HYDRA_BSTRAP_KEEP_ALIVE.
Additionally, minor updates have been made to fix inaccuracies in the document and improve user experience.

Intel® oneAPI 2021.2

  • No documentation changes.

Intel® oneAPI Gold

  • Removed all content specific to Intel® Parallel Studio XE (see notice on title page).
  • Added Intel® Ethernet 800 Series support.
  • Added MPI + OpenMP offload examples.
  • Added new algorithm for MPI_Sendrecv_replace (I_MPI_ADJUST_SENDRECV_REPLACE=2).
  • Reworked directory layout:
    • Removed
    • Mpivars.[c]sh
      mpi modulefile
      moved to
    • Mpivars.[c]sh
      renamed to
  • Removed deprecated symbolic links.
  • Removed static libraries for debug configurations.

Product and Performance Information


Performance varies by use, configuration and other factors. Learn more at