Yay bob!
-
David R. Jones
Mobile. +1-949-212-1107
davidj.nvidia.com
On Apr 20, 2012, at 7:07 PM, "Robert Crovella" <RCrovella.nvidia.com> wrote:
> To use multiple GPUs, you must use the MPI build of GPU AMBER, i.e. pmemd.cuda.MPI
>
> For MVAPICH2 1.6 version of MPI, a 2 gpu invocation might look something like this:
> mpirun_rsh -ssh -hostfile ~/.amber.hosts.2 -np 2 pmemd.cuda.MPI -O -i mdin -c inpcrd -l logmpi -o ~/results/amber-2-gpus
>
> you'll need to setup your hostfile properly for MPI
>
> -----Original Message-----
> From: Vijay Manickam Achari [mailto:vjrajamany.yahoo.com]
> Sent: Friday, April 20, 2012 7:40 PM
> To: Amber mailing List
> Subject: [AMBER] using two GPUs
>
> I am trying to use more then one GPU to run my job. For instance I would like to use two GPUs with its ID 2 and 3.
>
> I used environment setup as given in Amber12 manual (page 247) as below
>
> setenv $AMBERHOME /usr/local/apps/amber12 #setenv CUDA_VISIBLE_DEVICES 2,3 export CUDA_VISIBLE_DEVICES=2,3
>
>
> But when I use top command I can see only one pmemd.cuda command is running not two.
> IS there any way to make both the GPUs run on same job?
>
> Thanks
>
>
> Vijay Manickam Achari
> (Phd Student c/o Prof Rauzah Hashim)
> Chemistry Department,
> University of Malaya,
> Malaysia
> vjramana.gmail.com
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Received on Fri Apr 20 2012 - 19:30:04 PDT
