On Wed, May 2, 2012 at 6:13 PM, Mirco Wahab < [email protected]> wrote:
> Hello Peter, > > Am 02.05.2012 17:44, schrieb Peter C. Lai: > > > You can wait for ivy bridge, then stick some Kepler GPUs (nvidia gtx >> 680) in it. That should max the performance. asm is pretty much stagnant >> for general purpose procs since core2 came out. >> > > Is this true? > > To my knowledge, the Fermi GPU (GF-110, eg. GTX-580) is > a 16 processor (streaming multiprocessor, SM) system, each > processor having 32 cores running at 1.5 GHz, and the > Kepler-1 (GK-104, eg. GTX-680) an 8 processor system > with 192 cores per processor at 1GHz. > Because on the Fermi each SM has more L1 cache than > each SM on the Kepler-1 and because it might be harder > to saturate 192 cores in a compute-scenario, I'd expect > the 580 (GF-110) to be significant(?) faster in the > next Gromacs (4.6). Maybe somebody tested this already. > The current experimental Kepler kernels have about the same performance as a GTX 580. We hope to squeeze out more performance, but we'll have to see. > (Here in Germany, I can by GTX-580/3GB for ~325€ + Tax.) > > Regards, > > M. > > > -- > gmx-users mailing list [email protected] > http://lists.gromacs.org/**mailman/listinfo/gmx-users<http://lists.gromacs.org/mailman/listinfo/gmx-users> > Please search the archive at http://www.gromacs.org/** > Support/Mailing_Lists/Search<http://www.gromacs.org/Support/Mailing_Lists/Search>before > posting! > Please don't post (un)subscribe requests to the list. Use the www > interface or send it to [email protected]. > Can't post? Read > http://www.gromacs.org/**Support/Mailing_Lists<http://www.gromacs.org/Support/Mailing_Lists> >
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