Background of MPI-2.2 (original) (raw)

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MPI-2.2 is a minor update to the MPI-2.1 standard. This version addresses additional errors and ambiguities that were not corrected in the MPI-2.1 standard as well as a small number of extensions to MPI-2.1 that met the following criteria:

• Any correct MPI-2.1 program is a correct MPI-2.2 program.
• Any extension must have significant benefit for users.
• Any extension must not require significant implementation effort. To that end, all such changes are accompanied by an open source implementation.

The discussions of MPI-2.2 proceeded concurrently with the MPI-3discussions; in some cases, extensions were proposed for MPI-2.2 but were later moved to MPI-3.

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(Unofficial) MPI-3.1 of June 4, 2015
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