Re: [AMBER] GTX Titan was finally released

From: Albert <mailmd2011.gmail.com>
Date: Mon, 18 Mar 2013 19:29:09 +0100

it looks good.
But As far as I know, it is no better than GTX690 according to some
professional computer journal testing.





On 03/18/2013 06:58 PM, filip fratev wrote:
> Hi Ross and Mohd,
>
>
>> >Hi, the clock speeds that you reported, are those with full double precision on? Or off? From thishttp://www.anandtech.com/show/6760/nvidias-geforce-gtx-titan-part-1/4 article, I get the impression that the boost 2.0 or what ever they >call it, is disabled if full DP is enabled.So, can you please check, that when you report the higher clock under
> windows, is this with full DP or with DP disabled. And can you please
> also check if under Linux, DP can be disabled, say through NVIDIA
> settings?
>
> I reported the clocks with DP
> disabled (the default mode). You can see the CUDA-Z output here:
> http://imageshack.us/photo/my-images/259/cudaz.png/
>
>
> DP mode should be and is in
> reality restricted to only 836MHz:
> http://imageshack.us/photo/my-images/26/cudazdp.png/
>
> About DP mode under Linux I will check that today.
>
>
>> >However, this appears to be for gaming, have you managed to run any cuda code under Windows that can use the GPU running at that clock speed?
> Ross this is very interesting
> question! I tested Hex_cuda and Molegro MVD (cuda docking software's). Both Hex
> and MVD work on 836MHz:
> http://imageshack.us/photo/my-images/835/mvda.gif/
>
>
> However, the GPU load was very
> small, around 30-55%, thus I tested if I have more realistic load what would be
> the core speed and execute both programs simultaneously. Also tested what would
> happen if I run two MVD jobs on same GPU. The load increased to 75% and the speed
> immediately goes to 993MHz! The result is here:
> http://imageshack.us/photo/my-images/13/2procesa1.gif/
>
> These results are also supported
> by CUDA-Z image above. Thus the answer is that definitely the Cuda applications
> work under windows with 993MHz core speed.
>
> My report is just informative. My
> opinion is that rather Nvidia developers should be pressured by some serious
> institutions to unlock their cards under Linux than a new windows amber
> modification to be developed..
>
> All the best,
> Filip
>


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Received on Mon Mar 18 2013 - 12:00:03 PDT
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