Hi, The fact that GPUs are detected at configure-time does not imply that these GPUs will also work fine at run-time and you see this in action in your case. The current CMake configure script only looks at whether there is any NVIDIA GPU device connected, but does not check other conditions that might prevent a CUDA application to work, like: badly configured or broken GPU driver or incompatible driver and CUDA toolkit.
In your case, as the second line of the error message states, no GPUs were detected by the CUDA runtime itself (this message is returned by libcudart). Please check your CUDA/driver installation, I'm pretty cure there is something wrong with it. You can try to first run the "nvidia-smi" GPU monitoring tool to see whether this can detect any device at all. Cheers, -- Szilárd On Fri, Dec 14, 2012 at 4:09 PM, sebastian < sebastian.wa...@physik.uni-freiburg.de> wrote: > Dear gromacs users, > > I run into problems when I try to use the NVIDIA tesla K10 GPUs with mdrun. > Looking at the cmake log file I find this lines: > > -- Looking for NVIDIA GPUs present in the system > -- Number of NVIDIA GPUs detected: 2 > -- Found CUDA: /usr/local/cuda (found suitable version "4.2", required is > "3.2") > -- Enabling native GPU acceleration > > so everything seems to work fine during configuration and since running > make also does not complain also during compilation. > Now if I run mdrun on a test system I get the following error: > > Error occurred during GPU detection: > no CUDA-capable device is detected > Can not use GPU acceleration, will fall back to CPU kernels > > How can I get mdrun working on the K10? > > Any hint is welcomed. > > Dears > > Sebastian > > > > -- > gmx-users mailing list gmx-users@gromacs.org > http://lists.gromacs.org/**mailman/listinfo/gmx-users<http://lists.gromacs.org/mailman/listinfo/gmx-users> > * Please search the archive at http://www.gromacs.org/** > Support/Mailing_Lists/Search<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<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
