Returns the resolution of mpi_wtime
double MPI_Wtick( void )
Time in seconds of resolution of MPI_Wtime
This is a function, declared as DOUBLE PRECISION MPI_WTICK() in Fortran.
also: MPI_Wtime, MPI_Comm_get_attr, MPI_Attr_get
/tmp/gyCYfBi4J6/mpich-3.1/src/mpi/timer/wtick.c