[gmx-users] gromacs 5.1.2 mdrun can't detect GPU

[Téletchéa Stéphane]

Le 21/04/2016 03:54, treinz a écrit :
> Hi,
>
>
> Can you also explain why the function calls to cudaDriverGetVersion() and cudaRuntimeGetVersion() both return 0, as in
>>> >>CUDA driver:        0.0
>>> >>CUDA runtime: 0.0
> Thanks,
> Tim

Hi all,

As I already posted on the list, it seems the combination of gromacs + 
cuda is tedious,
I had not time to dig it further, but wrote down what worked for me:

http://www.steletch.org/spip.php?article89

The driver version was very close from the drivers included in the 
default ubuntu
installation, nvidia-smi was working fine also, but gromacs was not able 
to detect it.

Using the driver from the cuda toolkit solved the problem for me.
I only sent a mail on the mailing list, if I have time to dig further 
I'll try to provide more
insight and a proper bug report. Up to now you can check if the driver 
version is the one
expected from the cuda toolkit (nvidia-smi -a).

HTH,

Stéphane

-- 
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