mpisync [options]
Contents
Copyright
2003-2025, The Open MPI Community
Feb 17, 2025 MPISYNC(1)
Description
mpisync: determines clock offsets relative to Head Node Process (HNP). It accepts the following options:
• -o, --output: The name of output file where offsets related to HNP will be written
• -h, --help: Print help information
ompi_timing_post 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 first : previous event.
mpirun_prof is a wrapper around mpirun that performs clock synchronisation and post-processing of the
timing output file.
Files
The output file has following format:
<hostname> <round-trip-time> <offset-from-hnp>
Notes
The mpisync code was derived from MPIPerf project: ‐
http://mpiperf.cpct.sibsutis.ru/index.php/Main/DocumentationSyntax
mpisync[options]mpirun_prof[options]ompi_timing_post[<timing-file>][<processed-file>]
