!ai caramba! :/
it looks like 3 of the cards are consistently failing with skinnb errors
on.....
you guessed it:
JAC NPT
Have been running tests this weekend. Will post my findings later today or
tomorrow.
On 3 July 2013 12:58, ET <sketchfoot.gmail.com> wrote:
> FYI: Just got 2x Zotac 780s and ran the benchmark tests.
>
> All the tests were reproducible across 2x repeats.
>
> Going to get a couple of more today.
>
> br,
> g
>
>
> On 27 June 2013 21:43, ET <sketchfoot.gmail.com> wrote:
>
>> no worries. :) Already RMA's 2x Titans and bought 2x Zotacs. Will check
>> 'em tomorrow. If they are good will order another 2.
>>
>> Thanks again for testing them.
>>
>>
>> On 27 June 2013 19:43, Ross Walker <ross.rosswalker.co.uk> wrote:
>>
>>> The GTX780s do not appear to be broken - we are just being cautious right
>>> now.
>>>
>>> The Titan's are broken for everyone right now - well broken for anyone
>>> who
>>> actually hits what they are broken with - which is still being
>>> investigated. But certainly for anyone who uses cuFFT the Titan's appear
>>> to broken right now.
>>>
>>> All the best
>>> Ross
>>>
>>>
>>>
>>> On 6/27/13 11:20 AM, "ET" <sketchfoot.gmail.com> wrote:
>>>
>>> >Are they "broken" only in terms of AMBER? Or could this be classed as a
>>> >general hardware fault pertaining to all applications that use the card?
>>> >
>>> >
>>> >
>>> >
>>> >On 27 June 2013 18:50, Scott Le Grand <varelse2005.gmail.com> wrote:
>>> >
>>> >> It's not really a question of how it's programmed, it's a question of
>>> >> manufacturing. One picks 12 out of 15 processor cores on the chip
>>> >>itself
>>> >> to make a GTX 780 as opposed to picking 14 out of 15 processor cores
>>> to
>>> >> make a GTX Titan. In the former, there are 455 ways to do so and in
>>> the
>>> >> latter, 15.
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >> On Wed, Jun 26, 2013 at 7:13 PM, ET <sketchfoot.gmail.com> wrote:
>>> >>
>>> >> > 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.
>>> >> > > >
>>> >> > > >
>>> >> > > >
>>> >> > > >
>>> >> > > >
>>> >> > > >
>>> >> > > >
>>> >> > > > _______________________________________________
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>>> >> > > >
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Received on Mon Jul 08 2013 - 01:00:03 PDT
