84 lines
2.7 KiB
Groff
84 lines
2.7 KiB
Groff
.\" Man page generated from reStructuredText.
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.TH "OPEN-MPI" "7" "Feb 14, 2025" "" "Open MPI"
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Open MPI \- General information
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.SH OPEN MPI
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Open MPI is an open source implementation of MPI (message\-passing
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interface), the industry\-standard specification for writing
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message\-passing programs. Message passing is a programming model that
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gives the programmer explicit control over interprocess communication.
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.sp
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The MPI specification was developed by the MPI Forum, a group of
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software developers, computer vendors, academics, and computer\-science
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researchers whose goal was to develop a standard for writing
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message\-passing programs that would be efficient, flexible, and
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portable.
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The outcome, known as the MPI Standard, was first published in 1993; its
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most recent version (MPI\-4.0) was published in June 2021. Open MPI
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includes all MPI 3.1\-compliant routines.
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For more information about Open MPI, see \fI\%https://www.open\-mpi.org\fP\&.
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The MPI standards are available at \fI\%https://www.mpi\-forum.org\fP\&.
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.SH MAN PAGE SYNTAX
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Man pages for Open MPI and Open MPI I/O routines are named according to
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C syntax, that is, they begin with the prefix \fBMPI_\fP, all in
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uppercase, and the first letter following the \fBMPI_\fP prefix is also
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uppercase. The rest of the letters in the routine are all lowercase, for
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example, \fI\%MPI_Comm_get_attr\fP\&.
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.SH ENVIRONMENT
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To fine\-tune your Open MPI environment, you can either use arguments
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to the \fI\%mpirun\fP or \fI\%mpiexec\fP
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commands, or you can use MCA parameters.
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.sp
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For more information on arguments, see the \fI\%mpirun(1)\fP man page.
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For a complete listing of MCA parameters and their descriptions, issue
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the command \fBompi_info \-\-all\fP\&. See \fI\%ompi_info(1)\fP for more information.
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.SH ERRORS
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See \fI\%MPI Errors\fP for details about error values.
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\fBSEE ALSO:\fP
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.INDENT 0.0
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.INDENT 3.5
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\fI\%MPI_T\fP \fI\%mpirun(1)\fP \fI\%mpiexec(1)\fP \fI\%ompi_info(1)\fP
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.UNINDENT
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.UNINDENT
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.SH COPYRIGHT
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2003-2025, The Open MPI Community
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.\" Generated by docutils manpage writer.
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