On Fri, Jun 15, 2007 at 01:49:49PM +0200, Toon Knapen wrote: > AFAICT this is not always the case. E.g. on systems with glibc, this > functionality (set_process_affinity and such) is only available starting > from libc-2.3.4.
Nearly every statement about Linux is untrue at some point in the past. > E.g. you can obtain a big boost when running an > MPI-code where each process performs local dgemm's for instance by using > an OpenMP'd dgemm implementation. This is an example where running > mixed-mode makes a lot of sense. First off, I see people using *threaded* DGEMM, not OpenMP. Second, I've never seen anyone show an actual benefit -- can you name an example? i.e. "for N=foo, I get a 13% speedup on..." -- greg _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
