Hi James,
There are more experienced people here that can provide better informed,
fuller answers, but I hope this will help:
>
>
> 1) How I could use my second GPU for second system?
>
Set the environment variable *CUDA_VISIBLE_DEVICES *(you can search for
this in the Amber mailing list to see previous posts).
*CUDA_VISIBLE_DEVICES=0* should point to your first GPU, and if you then
set *CUDA_VISIBLE_DEVICES=1 *you should use your other one.
> 2)Does it possible to use 3 CPU cores for each GPU obtaining increase in
> performance? Should I use MP for such tasks?
>
> The pmemd.cuda code runs completely on the GPU, using CPU only for i/o. So
I'm pretty sure there will not be any increase in performance when using
more CPU cores.
> Thanks for help,
>
> James
> _______
Hope this helps,
Marc
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Received on Wed May 07 2014 - 03:30:02 PDT
