On Thu, Feb 7, 2013 at 10:16 AM, Albert <mailmd2...@gmail.com> wrote:
> Hello: > > I got a workstation with two GTX590 which have two core for each GPU. I > can submit gromacs GPU jobs with command: > > mpirun -np 4 mdrun ..... > > with such running, I can get 26ns/day for Gromacs-4.6 beta version. > > However, I found that for Gromacs-4.6 final version (which is the latest > one), it claimed that I only have two GPU, it asked me to adjust -np to 2. > Please make sure that nvididia-smi or the deviceQuery SDK tool show all four GPUs. If that is the case and mdrun still shows only two, please file a bug report with you OS info and a log file attached. Cheers, -- Szilárd > > so I submit the jobs with command: > > mpirun -np 2 mdrun... > > for the same system with the same paramters (of course the tpr file must > be regenerated). I found that I can get only half of the speed, something > around 10 ns/day. > > > So I am just wondering what's happening? > > thank you very much > best > Albert > -- > gmx-users mailing list gmx-users@gromacs.org > 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 gmx-users-requ...@gromacs.org. > * Can't post? Read > http://www.gromacs.org/**Support/Mailing_Lists<http://www.gromacs.org/Support/Mailing_Lists> > -- gmx-users mailing list gmx-users@gromacs.org 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 gmx-users-requ...@gromacs.org. * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
