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.TH "MPISYNC" "1" "May 13, 2024" "" "Open MPI"
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mpisync — Open MPI timing tools
.SH SYNTAX
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\fBmpisync [options]\fP
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\fBmpirun_prof [options]\fP
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\fBompi_timing_post [<timing\-file>] [<processed\-file>]\fP
.SH DESCRIPTION
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\fBmpisync\fP: determines clock offsets relative to Head Node Process
(HNP). It accepts the following options:
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.IP \(bu 2
\fB\-o\fP, \fB\-\-output\fP: The name of output file where offsets related
to HNP will be written
.IP \(bu 2
\fB\-h\fP, \fB\-\-help\fP: Print help information
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\fBompi_timing_post\fP takes the timing output file as input parameter.
The events are sorted by the timestamps. Next, the timestamps are
replaced with time offsets relative to the \fBfirst\fP : \fBprevious\fP
event.
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\fBmpirun_prof\fP is a wrapper around \fI\%mpirun\fP that
performs clock synchronisation and post\-processing of the timing
output file.
.SH NOTES
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The mpisync code was derived from MPIPerf project:
\fI\%http://mpiperf.cpct.sibsutis.ru/index.php/Main/Documentation\fP
.SH FILES
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The output file has following format:
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.EX
<hostname> <round\-trip\-time> <offset\-from\-hnp>
.EE
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.SH COPYRIGHT
2003-2024, The Open MPI Community
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