Thanks very much for the quick information guys! It's much appreciated.
I'm not that up on the manner in which these cards are programmed, so am a
little confused by your explanation Scott. could you please clarify it for
me?
br,
g
On 27 June 2013 01:47, Scott Le Grand <varelse2005.gmail.com> wrote:
> To clarify, there are 15 SMXs in a GK110 GPU. For GTX Titan, one of them
> is disabled. There are 15 (15 choose 1) ways to do this. All of them seem
> to be broken.
>
> There are 12 out of 15 active SMXs in GTX 780. That means there are 455 (15
> choose 3) ways to make one. I'm a little nervous that some of those
> configurations may be broken, so the best thing to do is to test if they
> exhibit deterministic behavior upon acquiring them, and if they don't, RMA
> them as defective.
>
>
>
>
>
>
> On Wed, Jun 26, 2013 at 4:31 PM, Ross Walker <ross.rosswalker.co.uk>
> wrote:
>
> > Hi All,
> >
> > Ok, good news on the GTX780 front. After 4 days of testing neither Scott
> > nor myself have been able to break the GTX780s. This is in a 4 x GTX780
> > Exxact system although at present we have only tested multiple single GPU
> > runs using all 4 GPUs at once - I.e. pmemd.cuda (NOT pmemd.cuda.MPI) - I
> > will be testing pmemd.cuda.MPI shortly but I don't see why this wouldn't
> > work given single GPU is working fine.
> >
> > Key though is that there are multiple ways to build GTX780s, and for now
> > we have only tested one specific model which is as follows:
> >
> > http://tinyurl.com/prxlwy6 Zotac GTX780 ZT-70201-10P
> >
> >
> > Until we have an opportunity to test different vendor GTX780s and OC
> > versions the advice is to stick with the above model if you can.
> >
> > All the best
> > Ross
> >
> > /\
> > \/
> > |\oss Walker
> >
> > ---------------------------------------------------------
> > | Associate Research Professor |
> > | San Diego Supercomputer Center |
> > | Adjunct Associate 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 |
> > ---------------------------------------------------------
> >
> > Note: Electronic Mail is not secure, has no guarantee of delivery, may
> not
> > be read every day, and should not be used for urgent or sensitive issues.
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > AMBER mailing list
> > AMBER.ambermd.org
> > http://lists.ambermd.org/mailman/listinfo/amber
> >
> _______________________________________________
> AMBER mailing list
> AMBER.ambermd.org
> http://lists.ambermd.org/mailman/listinfo/amber
>
_______________________________________________
AMBER mailing list
AMBER.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber
Received on Wed Jun 26 2013 - 19:30:03 PDT
