MPI_Wtick.openmpi3
Usage
C Syntax
#include <mpi.h> double MPI_Wtick()
Fortran Syntax
USE MPI ! or the older form: INCLUDE 'mpif.h' DOUBLE PRECISION MPI_WTICK()
Fortran 2008 Syntax
USE mpi_f08 DOUBLE PRECISION MPI_WTICK()
MPI_Wtick — Returns the resolution of MPI_Wtime.
Return value
Time in seconds of resolution of MPI_Wtime.
Overview
MPI_Wtick returns the resolution of MPI_Wtime in seconds. That is, it returns, as a double-precision value, the number of seconds between successive clock ticks. For example, if the clock is implemented by the hardware as a counter that is incremented every millisecond, the value returned by MPI_Wtick should be 10^-3.
Note
This function does not return an error value. Consequently, the result of calling it before MPI_Init or after MPI_Finalize is undefined.
SEE ALSO:
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MPI_Wtime
Releases
6 releases since Debian 8 (Jessie); the text changed 5 times.