Re: [gmx-users] Fatal Error when launching gromacs 2019.2 on GPU.

2019-10-28 Thread Szilárd Páll
Hi, Indeed, the standard way provided by CUDA to expose a subset of GPUs to an application is the CUDA_VISIBLE_DEVICES (note the "S" ending); I did not realize that is something you were interested in, I thought you wanted to avoid using GPUs. Also note (for anyone interested), a when using a

Re: [gmx-users] Fatal Error when launching gromacs 2019.2 on GPU.

2019-10-28 Thread Artem Shekhovtsov
Hi, Thanks, setting this variable allowed me to start GROMACS without errors using the CPU. The problem is that this method prevents me from using other free GPUs on the host, but I would like to do this. I also found out that setting the CUDA_VISIBLE_DEVICE variable to available GPUs at the time

Re: [gmx-users] Fatal Error when launching gromacs 2019.2 on GPU.

2019-10-25 Thread Szilárd Páll
Hi, This is an issue in one of pre-detection checks that trips due to encountering exclusive / prohibited mode devices. You can work around this by entirely disabling the detection using the GMX_DISABLE_GPU_DETECTION environment variable. Cheers, -- Szilárd On Thu, Oct 17, 2019 at 5:01 PM

Re: [gmx-users] Fatal Error when launching gromacs 2019.2 on GPU.

2019-10-22 Thread Szilárd Páll
Hi, Can you please file an issue on redmine.gromacs.org with the description you gave here? Thanks, -- Szilárd On Thu, Oct 17, 2019 at 5:01 PM Artem Shekhovtsov wrote: > Hello! > Problem: The launch of mdrun that does not require video cards exit with > fatal error if at least one video card

[gmx-users] Fatal Error when launching gromacs 2019.2 on GPU.

2019-10-17 Thread Artem Shekhovtsov
Hello! Problem: The launch of mdrun that does not require video cards exit with fatal error if at least one video card is busy on the host at that time. gmx mdrun -deffnm test -ntmpi 1 -ntomp 1 -nb cpu -bonded cpu --- Program: gmx mdrun,