As actually cards are separate, only half amount of onboard memory will be
available.
2011/3/30 Marek Maly <marek.maly.ujep.cz>
> Hi Ross and Scott,
>
> thanks for your comments !
>
> Just the additional question. How it is with memory of that
> dual card. I mean if I use the GTX 590 just for one single job
> (so if I understood well just one half of this card will be used = 512
> cores)
> will be for this job available also just half of the total memory (0.5 x
> 3GB = 1.5GB)
> or the memory is shared with both separate parts and that job will have in
> disposal full 3GB ?
>
> Thanks in advance for this last comment
>
> Best wishes,
>
> Marek
>
>
>
> Dne Wed, 30 Mar 2011 20:29:58 +0200 Ross Walker <ross.rosswalker.co.uk>
> napsal/-a:
>
> > Hi Marek,
> >
> > Yes, these cards should work in exactly the same way as the GTX295's did.
> > That is they are effectively two completely independ GPUs on the same
> > PCI-E
> > bus. Consider them to just be essentially 2 GX580s in one of those break
> > out
> > boxes and note that the effective PCI bandwidth between the two GPUs is
> > effectively 8x. Hence you can run 2 single GPU jobs at one, one on each
> > GPU
> > ID and they should run more or less at full single GPU speed. In parallel
> > the scaling will be slightly worse than if you bougth 2 GTX580 cards and
> > put
> > them in side by side x16 slots.
> >
> > Hope that helps.
> >
> > All the best
> > Ross
> >
> >> -----Original Message-----
> >> From: Marek Maly [mailto:marek.maly.ujep.cz]
> >> Sent: Wednesday, March 30, 2011 2:40 AM
> >> To: amber.ambermd.org
> >> Subject: [AMBER] Amber CUDA calcualtion on GeForce GTX 590 ?
> >>
> >> Hello all,
> >>
> >> I am just wondering if someone already tried to run Amber cuda
> >> calculations
> >> on GeForce GTX 590.
> >>
> >> http://www.nvidia.de/object/product-geforce-gtx-590-de.html
> >>
> >> The advantage of this card is double memory and double number of cores
> >> comparing to GTX 480.
> >>
> >>
> >> It seems to me that they just put two chips from GTX 480 in one
> >> single GPU so I assume compatibility with amber as it is compatible
> >> with
> >> 480 version. What I am just a little afraid are cooling issues of such
> >> card
> >> especially for long runs ...
> >>
> >> Any experiences, comments appreciated.
> >>
> >> Best wishes,
> >>
> >> Marek
> >>
> >>
> >>
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> >
> >
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> >
> >
>
>
> --
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--
Sincerely,
Dmitry Mukha
Institute of Bioorganic Chemistry, NAS, Minsk, Belarus
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Received on Wed Mar 30 2011 - 12:30:05 PDT
