Well I put in two new video cards and now only one is being used. I had two before and both were used.

What do I need to do to get this second GPU used?

10/16/2012 9:37:44 PM NVIDIA GPU 0: GeForce GT 630 (driver version 306.97, CUDA version 5.0, compute capability 2.1, 2048MB, 8382397MB available, 311 GFLOPS peak)
10/16/2012 9:37:44 PM NVIDIA GPU 1 (not used): GeForce GT 630 (driver version 306.97, CUDA version 5.0, compute capability 2.1, 2048MB, 1989MB available, 311 GFLOPS peak)

---

SETI@home classic workunits 4,019
SETI@home classic CPU time 34,348 hours

I have no experiences with Windows 7.
Maybe someone with this O/S can agree or improve my proposals.


You could start with ..

BOINC see the 2nd GPU ..

So I guess you need a cc_config.xml file with entries:

<cc_config>
   <options>
      <use_all_gpus>1</use_all_gpus>
   </options>
</cc_config>

If this don't work, maybe you need to extend the Windows Desktop also to the 2nd GPU.

If this don't work, maybe you need a dummy screen plug connected with your 2nd GPU.

I saw some results with x32f_cuda32 and some with x41g_cuda32 app.

You should use the x41g_cuda32 app of Lunatics Installer v0.4.


* Best regards! :-) * Sutaru Tsureku, team seti.international founder. * Optimize your PC for higher RAC. * SETI@home needs your help. *

---

I saw some results with x32f_cuda32 and some with x41g_cuda32 app.

You should use the x41g_cuda32 app of Lunatics Installer v0.4.

But where can I find this download?

---

SETI@home classic workunits 4,019
SETI@home classic CPU time 34,348 hours

I saw some results with x32f_cuda32 and some with x41g_cuda32 app.

You should use the x41g_cuda32 app of Lunatics Installer v0.4.

But where can I find this download?

From an older post of msattler...

It's just a line added to your cc_config file.

1. exit BOINC
2. go to ProgramData\Boinc directory
3. find cc_config file and edit it with notepad
4. find at the end line use_all_gpus>0</use_all_gpus> and change it to use_all_gpus>1</use_all_gpus> If the option is not there, add it.
5. save it

If you do not have a cc_config file, you will have to create it.

---

Sutaru Tsureku wrote:

I saw some results with x32f_cuda32 and some with x41g_cuda32 app.

You should use the x41g_cuda32 app of Lunatics Installer v0.4.

Bill G wrote:

But where can I find this download?

You have already the Lunatics Installer V0.4, because your PC use already the x41g_cuda32 app.
But it looked strange, some results with x32f_cuda32 and some with x41g_cuda32 app.

When you used the Lunatics Installer V0.4?
For a short time?


By the way ..
You use BOINC DEV-V7.0.31.
I would use only the recommended versions, currently V7.0.28.
Maybe DEV-V7.0.31 don't work properly.

Ahh .. - sorry, I looked again, the x41g_cuda32 app was new in Lunatics Installer V0.39.

In Lunatics Installer V0.4 are the AstroPulse v6 apps updated.

Currently the Lunatics Installer (V0.4) is not available for download.

You made a cc_config.xml file like I mentioned in my above message?


* Best regards! :-) * Sutaru Tsureku, team seti.international founder. * Optimize your PC for higher RAC. * SETI@home needs your help. *

---

I made the cc_config.xml file and put the suggested data in it and I am now working with both GPUs.

Thank you very much.

---

SETI@home classic workunits 4,019
SETI@home classic CPU time 34,348 hours

You are welcome.

I'm happy that it work now. :-)


* Best regards! :-) * Sutaru Tsureku, team seti.international founder. * Optimize your PC for higher RAC. * SETI@home needs your help. *

---

Well I put in two new video cards and now only one is being used. I had two before and both were used.

What do I need to do to get this second GPU used?

10/16/2012 9:37:44 PM NVIDIA GPU 0: GeForce GT 630 (driver version 306.97, CUDA version 5.0, compute capability 2.1, 2048MB, 8382397MB available, 311 GFLOPS peak)
10/16/2012 9:37:44 PM NVIDIA GPU 1 (not used): GeForce GT 630 (driver version 306.97, CUDA version 5.0, compute capability 2.1, 2048MB, 1989MB available, 311 GFLOPS peak)

There is a Wacky GPU memory reporting Bug with the recent Boinc 7 clients, because the available GPU memory is reported wrong, Boinc then doesn't use both GPUs because they aren't similar enough,
Boinc 7.0.36 has a partial fix, But there are changes to the (internal) flops reported for the GPU, and because of the changes, existing GPU Wu's will be on the verge of going Maximum time exceeded,
so any GPU Wu's should be completed prior to upgrading to Boinc 7.0.36 (new GPU Wu's will get a revised <rsc_fpops_est> figure so will complete O.K)

Claggy

Will be the currently BOINC DEV-V7.0.36 maybe the new recommended version in near future?


* Best regards! :-) * Sutaru Tsureku, team seti.international founder. * Optimize your PC for higher RAC. * SETI@home needs your help. *

---

Will be the currently BOINC DEV-V7.0.36 maybe the new recommended version in near future?

Probably not, as it still has half the Wacky GPU memory reporting Bug, in my case it was the total GPU memory that was reported wrong, while the other testers reported it was the available GPU memory that was wrong (that was fixed in 7.0.36),
the fix for the Total GPU memory Bug should be in Boinc 7.0.37

Claggy

Will be the currently BOINC DEV-V7.0.36 maybe the new recommended version in near future?

Probably not, as it still has half the Wacky GPU memory reporting Bug, in my case it was the total GPU memory that was reported wrong, while the other testers reported it was the available GPU memory that was wrong (that was fixed in 7.0.36),
the fix for the Total GPU memory Bug should be in Boinc 7.0.37

Claggy

Is this just a Linux issue or across Windows too, I haven't seen it in Windows but I have in Linux.

---

Will be the currently BOINC DEV-V7.0.36 maybe the new recommended version in near future?

Probably not, as it still has half the Wacky GPU memory reporting Bug, in my case it was the total GPU memory that was reported wrong, while the other testers reported it was the available GPU memory that was wrong (that was fixed in 7.0.36),
the fix for the Total GPU memory Bug should be in Boinc 7.0.37

Claggy

Is this just a Linux issue or across Windows too, I haven't seen it in Windows but I have in Linux.

As far as i know it was just Windows, as the only testers that responded in the Boinc Alpha list were running Windows (and the private drops were only for Windows), doesn't mean that it doesn't also effect Linux,
you could try Boinc 7.0.36 and see if it is partially fixed. (The available memory should be fixed)

Claggy

I can confirm that total memory detection is broken on Linux, too.

10/18/2012 12:03:59 AM		Starting BOINC client version 7.0.36 for x86_64-pc-linux-gnu
...
10/18/2012 12:03:59 AM		NVIDIA GPU 0: GeForce GTX 570 (driver version unknown, CUDA version 4.20, compute capability 2.0, 134214911MB, 1212MB available, 1498 GFLOPS peak)
10/18/2012 12:03:59 AM		OpenCL: NVIDIA GPU 0: GeForce GTX 570 (driver version 295.71, device version OpenCL 1.1 CUDA, 1279MB, 1212MB available)

It works for OpenCL, but not CUDA (and still no driver version detection; will this be fixed?).

---