On Wed, Jul 22, 2020, Adriano José Ferruzzi wrote:
>
>We are now trying to run pmemd.cuda_SPFP.MPI using multi GPU to take
>advantage of the 2 GPUs Tesla k40 we have per node, but Amber starts to run
>and gets 0% on both GPUs. Here, we followed the instructions presented at
>ambermd.org/gpus16/index.htm
As that page notes, it is based on Amber16, and may be out of date.
You didn't say what parts of that page you followed.
Have you tried running "make test.cuda.parallel"? That will help see if the
problem is a generic one, or might be based on something wrong with the script
you are running.
How did you set CUDA_VISIBLE_DEVICES? I think it should be something like
"0,1", but I'm not a multi-GPU expert -- just trying to collect information
for others to consider.
...thanks...dac
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Received on Wed Jul 22 2020 - 18:00:02 PDT
