[gmx-developers] cudaStreamSynchronize failed in cu_blockwait_nb

[Carsten Kutzner]

Hi,

we updated to the newest driver, but later I found that this crash is caused by
a .tpr file with Coulomb-type=cutoff instead of PME:

- I start with a PME .tpr file that runs with the recent 4.6 on both a GTX580 and 680,
  and even using both
- I change to cutoff setting (no other changes!); this tpr still runs on the 580,
  but on the 680 produces the fatal error:
  "cudaStreamSynchronize failed in cu_blockwait_nb: unspecified launch failure"
  Moreover, after that any other mdrun using any GPU on that node will read in the
  previously working, PME) .tpr file and then hang. After rebooting, I can again
  run the PME .tpr file.

Carsten



On Oct 17, 2012, at 3:10 PM, Szilárd Páll <szilard.pall at cbr.su.se> wrote:

> HI,
> 
> Your driver might be simply too old for a GTX680. You'll need at least a very late 295.xx driver and preferably the 304.54 (or later).
> 
> Cheers,
> --
> Szilárd
> 
> 
> On Wed, Oct 17, 2012 at 2:10 PM, Carsten Kutzner <ckutzne at gwdg.de> wrote:
> BTW this executable works on a GTX580, but shows the fatal error
> on a GTX680 - both mounted in the same workstation.
> 
> Carsten
> 
> 
> On Oct 17, 2012, at 12:05 PM, Carsten Kutzner <ckutzne at gwdg.de> wrote:
> 
> > Hi,
> >
> > what am I doing wrong if I get this error code:
> >
> > -------------------------------------------------------
> > Program mdrun_threads, VERSION 4.6-dev-20121016-4af4561
> > Source code file: /home/ckutzne/installations/git-gromacs-4-6-department/src/mdlib/nbnxn_cuda/nbnxn_cuda.cu, line: 558
> >
> > Fatal error:
> > cudaStreamSynchronize failed in cu_blockwait_nb: unspecified launch failure
> >
> > For more information and tips for troubleshooting, please check the GROMACS
> > website at http://www.gromacs.org/Documentation/Errors
> > -------------------------------------------------------
> >
> > Thanks,
> > Carsten
> > --
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> 
> 
> --
> Dr. Carsten Kutzner
> Max Planck Institute for Biophysical Chemistry
> Theoretical and Computational Biophysics
> Am Fassberg 11, 37077 Goettingen, Germany
> Tel. +49-551-2012313, Fax: +49-551-2012302
> http://www.mpibpc.mpg.de/grubmueller/kutzner
> 
> --
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--
Dr. Carsten Kutzner
Max Planck Institute for Biophysical Chemistry
Theoretical and Computational Biophysics
Am Fassberg 11, 37077 Goettingen, Germany
Tel. +49-551-2012313, Fax: +49-551-2012302
http://www.mpibpc.mpg.de/grubmueller/kutzner