Re: [gmx-users] The problem of utilizing multiple GPU

2019-09-07 Thread Mark Abraham
e is 90 ns/day. However, > when I don't assign the GPU but let all GPU work by: > >gmx mdrun -v -deffnm md > > The simulation performance is only 2 ns/day. > >> So what is correct command to make a full use of all GPUs and achieve > the best performance (which I expect should be much higher than 90 ns/da

[gmx-users] The problem of utilizing multiple GPU

2019-09-06 Thread sunyeping
Hello Szilárd Páll Thank you for you reply. I tried your command: gmx mdrun -ntmpi 7 -npme 1 -nb gpu -pme gpu -bonded gpu -gpuid 0,2,4,6 -gputask 001122334 but got the following error information: Using 7 MPI threads Using 10 OpenMP threads per tMPI thread Program: gmx mdrun, versi

Re: [gmx-users] The problem of utilizing multiple GPU

2019-09-06 Thread sunyeping
> only one GPU)? Could you give me further suggestions and help? >> Best regards, > Yeping ---------- From:孙业平 Sent At:2019 Sep. 5 (Thu.) 07:12 To:gromacs ; Mark Abraham Cc:gromacs.org_gmx-users Subject:Re: [gmx-users] Th

Re: [gmx-users] The problem of utilizing multiple GPU

2019-09-05 Thread Szilárd Páll
s and help? > > Best regards, > Yeping > > ---------------------- > From:Mark Abraham > Sent At:2019 Sep. 4 (Wed.) 19:10 > To:gromacs ; 孙业平 > Cc:gromacs.org_gmx-users > Subject:Re: [gmx-users] The problem of utilizing mult

Re: [gmx-users] The problem of utilizing multiple GPU

2019-09-04 Thread 孙业平
romacs.org_gmx-users Subject:Re: [gmx-users] The problem of utilizing multiple GPU Hi, On Wed, 4 Sep 2019 at 12:54, sunyeping wrote: Dear everyone, I am trying to do simulation with a workstation with 72 core and 8 geforce 1080 GPUs. 72 cores, or just 36 cores each with two hyperthreads? (it

Re: [gmx-users] The problem of utilizing multiple GPU

2019-09-04 Thread Mark Abraham
Hi, On Wed, 4 Sep 2019 at 12:54, sunyeping wrote: > Dear everyone, > > I am trying to do simulation with a workstation with 72 core and 8 geforce > 1080 GPUs. > 72 cores, or just 36 cores each with two hyperthreads? (it matters because you might not want to share cores between simulations, whi

[gmx-users] The problem of utilizing multiple GPU

2019-09-04 Thread sunyeping
Dear everyone, I am trying to do simulation with a workstation with 72 core and 8 geforce 1080 GPUs. When I do not assign a certain GPU with the command: gmx mdrun -v -deffnm md all GPUs are used and but the utilization of each GPU is extremely low (only 1-2 %), and the simulation will be