Hi Albert!
As I understood your correctly you have run simulations with your 2 GPU cards on Gromacs-beta but could not do it with final version havent it? Could you tell me how you installed both GPU in your work-station? Have you used SLI ? ( I've heard that gromacs is not suported the simulation in multi-GPU regime so I'll be very happy if it's not true :)) Also could you tell me about configuration of your workstation in more detailes ? ( what cpu and mb you use ? ) James 2013/2/7 Albert <mailmd2...@gmail.com>: > 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. > > 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 > * 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 -- 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
