On Saturday 18 March 2006 07:24, John Bushnell wrote: > Regarding limits of running Gaussian SMP parallel: > > On Fri, 17 Mar 2006, Reuti wrote: > > Quoting Jess Cannata <[EMAIL PROTECTED]>: > >> Eugen Leitl wrote: > >>> Hello Everybody, > >>> > >>> I am planning to buy sixteen AMD64 Athlon dual core machines (with > >>> Linux) for running G03 in parallel. They will be connected by ethernet. > >>> I never have any experience in running gaussian with Linux cluster. So > >>> my questions are the following: > >>> > >>> 1. Can G03 be run parallel in the above configuration? > >>> 2. Do you need to have Linda for running parallel in the above > >>> configuration? > >> > >> You need Linda to run G03 in parallel. > > > > The OpenMP parallelization should also work without Linda - but of course > > limited to some routines and 2 cores. > > I was unaware of a "2 core" limit. Are you sure that you cannot > run Gaussian on four cores in a dual-cpu dual-core SMP configuration? > (assuming compiled from source on Linux)
We have tested G03 (c01) on an IBM e326 DualCore Dual CPU Opteron 1U server(total 4-cores, 4GB DDR1), with eval PGI licenses. G03 runs well in this config. The additional bonus is this: the researcher reported performance of 3.4-3.5x compared to running on just 1-core. Regards, Anand > > - John > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
