On Fri, May 4, 2012 at 9:20 PM, Roland Schulz <[email protected]> wrote: > > > On Wed, Apr 25, 2012 at 9:38 AM, Szilárd Páll <[email protected]> > wrote: >> >> On Wed, Apr 25, 2012 at 11:43 AM, SebastianWaltz >> <[email protected]> wrote: >> > Dear all, >> > >> > will the new version 4.6 work together with CUDA 4.2? Would be good to >> > know, since this is needed for the new NVIDIA Gemini cards with Kepler >> > technology. >> >> Yes it will. I would like to point out that the "needed" part is not >> exactly true, binaries compiled with pre-4.2 can run equally fast on >> Kepler especially if JIT compilation of PTX code is enabled. >> >> Moreover, current 4.2 pre-release compiler produces slower code than >> CUDA 4.0 not only for Fermi but also for Kepler. We'll have to see >> brins the final CUDA 4.2 release + official drivers. > > > Szilard, had you already a chance to test the 4.2 final release and can > recommend which version to use? > Is the difference in performance significant?
Yes, I've tried the 4.2 release (4.2.9) and the performance regression is still present, the kernels are unfortunately up to 5% slower on Fermi compared to CUDA 4.0. -- Szilárd > Roland > >> >> >> -- >> Szilárd >> >> >> >> >> > Thanks, >> > >> > Basti >> > -- >> > gmx-users mailing list [email protected] >> > http://lists.gromacs.org/mailman/listinfo/gmx-users >> > Please search the archive at >> > 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 >> -- >> gmx-users mailing list [email protected] >> http://lists.gromacs.org/mailman/listinfo/gmx-users >> Please search the archive at >> 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 >> >> >> >> > > > > -- > ORNL/UT Center for Molecular Biophysics cmb.ornl.gov > 865-241-1537, ORNL PO BOX 2008 MS6309 -- gmx-users mailing list [email protected] http://lists.gromacs.org/mailman/listinfo/gmx-users Please search the archive at 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
