OK,
so if one takes care more about the memory (for simulation of big systems),
the "Gainward GeForce GTX 580 Phantom 3GB" is probably definitely the best
choice regarding GTX cards available on the market because
#1
It has 3GB memory
#2
It is moreover a little bit faster than regular GTX 580 and so even more
faster than GTX 590.
#3
Probably no problems with linux drivers since it should work with the
latest driver (260.19.44)
which supports regular GTX 580.
Am I right ?
Marek
PS: Which is actual status regarding citation of your paramfit routine ?
Dne Wed, 30 Mar 2011 21:21:54 +0200 Ross Walker <ross.rosswalker.co.uk>
napsal/-a:
> Hi Marek,
>
>> 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 ?
>
> No unfortunately. My understanding, although I have not actually tried
> one
> of these cards is that they really are just two completely self-contained
> GPUs mounted side by side. There is no sharing of memory other than
> through
> the attached PCI-E connection which they share. As such if the card's
> total
> memory is 3GB then each GPU gets 1.5GB of memory available to it. There
> is
> no possibility for the other GPU to use the other GPUs memory. Hence
> really
> consider this to be two 1.5GB underclocked GTX580 cards sitting in PCI-E
> x8
> slots.
>
> All the best
> Ross
>
>
> /\
> \/
> |\oss Walker
>
> ---------------------------------------------------------
> | Assistant Research Professor |
> | San Diego Supercomputer Center |
> | Adjunct Assistant Professor |
> | Dept. of Chemistry and Biochemistry |
> | University of California San Diego |
> | NVIDIA Fellow |
> | http://www.rosswalker.co.uk | http://www.wmd-lab.org/ |
> | Tel: +1 858 822 0854 | EMail:- ross.rosswalker.co.uk |
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Received on Wed Mar 30 2011 - 13:00:04 PDT
