49 строки
1.2 KiB
Plaintext
49 строки
1.2 KiB
Plaintext
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.\" Copyright (c) 2014 Artem Polyakov <artpol84@gmail.com>. All rights reserved.
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.TH MPISYNC 1 "#OMPI_DATE#" "#PACKAGE_VERSION#" "#PACKAGE_NAME#"
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.SH NAME
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Open MPI timing tools
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.
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.SH SYNTAX
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.B mpisync
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[\fIoptions\fR]
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.br
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.B mpirun_prof
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[\fIoptions\fR]
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.br
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.B ompi_timing_post
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[\fI<timing-file>\fR] [\fI<processed-file>\fR]
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.
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.SH DESCRIPTION
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.PP
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.BR mpisync
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determines clock offsets relative to Head Node Process (HNP). It accepts the following options:
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.TP
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\fB\-o\fR, \fB\-\-output\fR
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The name of output file where offsets related to HNP will be written
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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Print help information
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.PP
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.BR ompi_timing_post
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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
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.BR first
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:
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.BR previous
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event.
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.PP
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.BR mpirun_prof
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is a wrapper around
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.BR mpirun
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that performs clock synchronisation and post-processing of the timing output file.
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.SH NOTES
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.PP
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The mpisync code was derived from MPIPerf project:
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http://mpiperf.cpct.sibsutis.ru/index.php/Main/Documentation
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.
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.SH FILES
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.PP
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The output file has following format:
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.PP
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<hostname> <round-trip-time> <offset-from-hnp>
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