Hi, What did you learn from the log file when it chose to use only one GPU? If your system is tiny then two won't help...
Mark On Mon., 25 Mar. 2019, 11:28 RAHUL SURESH, <drrahulsur...@gmail.com> wrote: > Hi > > I have a system with 2 8 core gold processor and 2 1080Ti card. During > mdrun, the job utilize only one GPU card. > > Command: gmx_mpi mdrun -v -deffnm md > > Trying various command line I could use both the card but end up with very > poor performance. > > command: mpirun -np 2 gmx_mpi mdrun -v -deffnm md -gpu_id 01 > > How to improve the performance of this system? > -- > 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. > -- 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.
