NAME

PTIM_start - starts process elapsed and CPU time counters.

SYNOPSIS

call PTIM_start([label])

PARAMETERS

<IN> label : Optional input string that user can introduce to label the section
             of the code to be instrumented.

NOTES

PTIM_start subroutine is collective over all processes of MPI_COMM_WORLD communicator.

EXAMPLES

The program below invokes PTIM_start/stop subroutines to time-instrument the call of the "do_parallel_work" routine.

     USE PTIM
     INTEGER :: ierr

     CALL MPI_INIT(ierr)
     call PTIM_start("do_parallel_work")
       CALL do_parallel_work(...)
     call PTIM_stop("do_parallel_work")
     ...
     CALL MPI_FINALIZE(ierr)

SEE ALSO

PTIM_stop

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Last modified: Thu Nov 18 16:06:07 CET 2004