.. _man1-mpisync: mpisync ======= .. include_body mpisync |mdash| Open MPI timing tools SYNTAX ------ ``mpisync [options]`` ``mpirun_prof [options]`` ``ompi_timing_post [] []`` 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 :ref:`mpirun ` that performs clock synchronisation and post-processing of the timing output file. NOTES ----- The mpisync code was derived from MPIPerf project: http://mpiperf.cpct.sibsutis.ru/index.php/Main/Documentation FILES ----- The output file has following format: .. code::