From: Norman Geist (norman.geist_at_uni-greifswald.de)
Date: Fri Aug 22 2014 - 08:21:25 CDT
How many GPUs do you have?
Norman Geist.
> -----Ursprüngliche Nachricht-----
> Von: Maxime Boissonneault [mailto:maxime.boissonneault_at_calculquebec.ca]
> Gesendet: Freitag, 22. August 2014 14:45
> An: Norman Geist
> Betreff: Re: AW: namd-l: FATAL ERROR: PME offload requires exactly one
> CUDA device per process.
>
> Threads do not work.
>
> So that means that it is impossible to do PME offload on multiple GPUs
> without MPI.
>
> Thanks,
>
> Maxime
>
> Le 2014-08-22 08:44, Norman Geist a écrit :
> > I guess the message tells everything. You need to start more
> processes.
> > Maybe also threads will work so +ppn
> >
> > Norman Geist.
> >
> >> -----Ursprüngliche Nachricht-----
> >> Von: owner-namd-l_at_ks.uiuc.edu [mailto:owner-namd-l_at_ks.uiuc.edu] Im
> >> Auftrag von Maxime Boissonneault
> >> Gesendet: Freitag, 22. August 2014 13:40
> >> An: Namd Mailing List
> >> Betreff: namd-l: FATAL ERROR: PME offload requires exactly one CUDA
> >> device per process.
> >>
> >> Hi,
> >> I'm getting this error for some computations using the Multicore
> >> binary.
> >> FATAL ERROR: PME offload requires exactly one CUDA device per
> process.
> >>
> >> I was wondering, is it a matter of configuration of the problem, or
> >> just
> >> of the problem size ? I understand I can use the MPI binary to
> address
> >> that and use multiple GPUs, but I'm wondering if I can use the
> >> multicore
> >> one (because it performs slightly better than the MPI one).
> >>
> >>
> >> Thanks,
> >>
> >>
> >> --
> >> ---------------------------------
> >> Maxime Boissonneault
> >> Analyste de calcul - Calcul Québec, Université Laval
> >> Ph. D. en physique
> >
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>
> --
> ---------------------------------
> Maxime Boissonneault
> Analyste de calcul - Calcul Québec, Université Laval
> Ph. D. en physique
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