On Thu, Apr 17, 2008 at 03:38:41PM +0300, Eray Ozkural wrote: > Is there such a benchmark that I can refer to? I am increasingly > convinced that OpenMP/pthread is required only in extreme cases, but I > need some numbers to prove that (to myself and my advisor).
I can point to several examples of codes which have both an MPI and OpenMP version, where the MPI code runs faster. Locality is your friend. Unfortunately, the most obvious set to compare (NAS Parallel Benchmarks) uses different serial algorithms for the OpenMP and MPI codes :-/ This topic has come up several times on this list in the past year. -- greg _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
