If you only have the one GPU, then both simulations will be trying to share the GPU resource, so they will not be able to obtain the same performance compared to running them separately.
The only true solution is to use a second GPU. You may or may not find it useful to run one of your simulations with the GPU and one without, you can force a simulation to run CPU only by using: -nb CPU. Adam > On 19 Nov 2015, at 02:45, RJ <ra...@kaist.ac.kr> wrote: > > Hi there, > > > I have 24 threads in my PC with one GTX 980Ti GPU. I would like to run two > simulation job by assigning 12 threads for each job. I have tried using > "-ntomp 12 -ntmpi 1" for mentioning the threads and gpu. However, i couldnt > get the similar speed as if run them alone with 12 threads. I have even used > "-pin on" but haven't get any significant changes in the speed? > > > Its much appreciated if you could provide the hints on it. Thanks a lot. > -- > Gromacs Users mailing list > > * Please search the archive at > http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! > > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists > > * For (un)subscribe requests visit > https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a > mail to gmx-users-requ...@gromacs.org. ----- We invite research leaders and ambitious early career researchers to join us in leading and driving research in key inter-disciplinary themes. Please see www.hw.ac.uk/researchleaders for further information and how to apply. Heriot-Watt University is a Scottish charity registered under charity number SC000278. -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists * For (un)subscribe requests visit https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a mail to gmx-users-requ...@gromacs.org.
