Forum > GPU crunching

GTX 460 superclocked

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Ghost0210:
Hi,

Not sure that you would be able to affect the Gflops that Boinc reports. Richard posted something earlier in the thread about compute 2.1 issues that DA is trying to get an answer from nVidia about. It could be this that is affecting your rating. But Richard/Jason would be the best ones to clarify this issue

Think this is the post from Richard about the compute capability:

--- Quote ---
And again, this is quite different from the problem with the 460 / GF104 that TouchuvGrey reported at the start of this thread: that one stems from the

'Cuda Cores' @ 48 per Multprocessor ( 7 * 48  = 336 cores


for Compute Capability 2.1

--- End quote ---

TouchuvGrey:
Still no answers on what "compute capability 2.1 " indicates.

Another question or so though, SLI enable or disable ?

Given my current setup intel core i7 920 12 gigs of
tri channel DDR3 GTS 250 and GTX 460, what is the best
application for me to run ?

Ghost0210:
I spent some time a couple of days ago trying to find any information on Cuda's compute capability 2.1 and was unable to find any mention of it, and I haven't seen anything come through on either the Boinc_Alpha list or Boinc_Dev so I would assume that either DA hasn't heard anything back from nVidia about it or he hasn't told published what he was told?

With regards to SLI, common consensus is that it should be disabled for Seti. You should be able to disable it though the Control Centre (I don;'t have SLI enabled cards in at the moment so can't test I'm afraid.

For the application, if you fancy doing some Beta testing for Jason, and you have access to the Beta download area then read this thread:
http://lunatics.kwsn.net/gpu-testing/ongoing-multibeam-cuda-x32f-testing.0.html
The Cuda 3.1 build does have an issue when using mixed cards (on the lesseer card the task will crash), but it would be good if you can confirm on your setup if you experience the same issues
The cuda 3.0 build should work fine on both cards
I have a similar setup to you (GTX465 and either a GT240 or GTX260) so if you could confirm my findings then it would be appreciated.
Please be aware though that these preview applications do have other known issues (no cpu fallback for example) so any issues please report them in the other thread.
If you decide that you want to use these applications and need a hand with the setup, let me know and I'll give you a hand ;)

MarkJ:
Nvidia seems to use the compute capaility to indicate how many shaders per processor the card has. In the case of the GTX460 (GF104 chip) its 48 per processor.

As for the beta testing, yes I did some on a variety of cards, GTX460 included. I don't mix card types in machines due to driver issues, which have been ongoing with nvidia.

TouchuvGrey:
i've posted about the GTX 460 over in the nvidia
forum. If i get any answers i'll post them here.

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