Jeff Hammond <jeff.scie...@gmail.com> writes: > George: > > Indeed, MPI_Wtick is not always a good measure of the precision of > MPI_Wtime. The way I would measure resolution is to call MPI_Wtime a few > million times.
Is there typically a problem with just looping until the result changes a few times? Obviously if there's too large a variance all bets should be off anyhow.
