Please don't mix C1060 and C2050 in the same run. It'll work but it's a load-balancing nightmare... Where are you only seeing a 30% speed boost? It should be at least 1.5x to 1.7x...
-----Original Message-----
From: Marek Maly [mailto:marek.maly.ujep.cz]
Sent: Monday, July 12, 2010 06:59
To: AMBER Mailing List
Subject: Re: [AMBER] The system size limitations for Tesla C2050 ?
Dear Dairsie,
thanks for your information. I know C2070 will have 6GB of memory which
will be a nice improvement comparing C2050 which has just 3GB but will be
also a
little bit more expensive and moreover will be available in Europe cca
from October.
Maybe that for this moment is still better to buy C1060 (with 4GB memory)
than C2050 however
C2050 seems to be cca 30%-40% faster (explicit solvent) or to consider
some hybrid solution
if one wants to buy let say 4 GPU system (2xC1060 + 2x2050). Of course
this is probably not
optimal for eventual GPU paralelisation higher than 2 GPUs.
Anyway thanks again !
Best wishes,
Marek
Dne Mon, 12 Jul 2010 11:04:12 +0200 Dairsie Latimer <dairsie.petapath.com>
napsal/-a:
> Marek,
>
> I don't know the exact number but it is linked to the board memory
> size.
> The C1060 has 4GB and can run the Cellulose NVE test case so my best
> guess
> at this point would be that the C2050 will be in the 275K to 300K region
> (3GB without ECC turned on). The C2070 is going to provided a good
> increase
> here and going multi-card will also probably allow the simulation of
> larger
> systems.
>
> Dairsie
>
> On 12 July 2010 09:37, Marek Maly <marek.maly.ujep.cz> wrote:
>
>> Dear all,
>>
>> does anybody know the system size limitation (number of atoms)
>> for Amber calculations in explicit solvent on Tesla C2050 GPU ?
>>
>>
>> From this Amber benchmark
>>
>> http://ambermd.org/gpus/benchmarks.htm
>>
>> is only evident that 100k atoms is OK but 400k not but
>> there is a big gap between this numbers so the real "border"
>> is not clear.
>>
>>
>> Thanks in advance for any comments/experiences regarding to this
>> GPU.
>>
>> Best wishes,
>>
>> Marek
>>
>>
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>>
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Received on Mon Jul 12 2010 - 09:30:05 PDT
