[EMAIL PROTECTED] wrote: <snip> > - The network/MPI combination is fairly critical to good performance and to > price/performance. I have done some benchmarks where the right MPI library > on GigE produces faster results than a bad MPI library on Myrinet. Seems > counter-intuitive, but I've seen it. > - The MPI is pretty important to good performance particularly on GigE. One > benchmark I did showed over a 2X in performance on LAM compared to > MPICH1. I know MPICH1 is really old and we have a shiny new MPICH2, but > you would be suprised how many people start with MPICH1 and how many > people stick with it. Do you have some anecdotal numbers for different MPI libraries over GigE?
> So, I'm not picking on Mark but I wanted to throw out some random observations > I've made over the years. Not that I'm an expert but I've got a few > CFD/cluster > bruises and thought I would show people why I got them :) > > Jeff > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf > -- Geoffrey D. Jacobs Go to the Chinese Restaurant, Order the Special _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
