I have a situation that I am trying to solve. One of my machines have two Nvidia cards. A EVGA GTS250 (device 1), and a very unique EVGA GTX275/GTS250 card that has two separate GPUs on a single card. (device 0 & device 2) respectively. I'm not sure why BOINC decided to split the 275/250 card as it did, since device 1 is in the slot closest to the CPU. Prior to adding the new GTS250(device 1), the GTX275 was device 0 & the GTS250 portion of the card was device 1.

10/24/2012 18:11:57 | | NVIDIA GPU 0: GeForce GTX 275 (driver version 306.97, CUDA version 5.0, compute capability 1.3, 896MB, 825MB available, 933 GFLOPS peak)
10/24/2012 18:11:57 | | NVIDIA GPU 1: GeForce GTS 250 (driver version 306.97, CUDA version 5.0, compute capability 1.1, 512MB, 396MB available, 705 GFLOPS peak)
10/24/2012 18:11:57 | | NVIDIA GPU 2: GeForce GTS 250 (driver version 306.97, CUDA version 5.0, compute capability 1.1, 384MB, 307MB available, 705 GFLOPS peak)

I am attempting to BOINC to ignore device 2 with the following option in the cc_config.xml file.

<exclude_gpu>
<url>http://setiathome.berkeley.edu/url>
<device_num>2</device_num>
<app>SETI@home_enhanced</app>
</exclude_gpu>

I get the following message in the event log:

10/24/2012 18:11:57 | | Can't parse <exclude_gpu> element in cc_config.xml

If I can resolve this issue then I can increase the number of tasks for the remaining GPUs to 2.

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I don't buy computers, I build them!!

Cliff,
Is the below a cut and paste?
If so, you're missing some chars on the url line:

<exclude_gpu>
<url>http://setiathome.berkeley.edu/</url>
<device_num>2</device_num>
<app>SETI@home_enhanced</app>
</exclude_gpu>

-Dave

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I have a situation that I am trying to solve. One of my machines have two Nvidia cards. A EVGA GTS250 (device 1), and a very unique EVGA GTX275/GTS250 card that has two separate GPUs on a single card. (device 0 & device 2) respectively. I'm not sure why BOINC decided to split the 275/250 card as it did, since device 1 is in the slot closest to the CPU. Prior to adding the new GTS250(device 1), the GTX275 was device 0 & the GTS250 portion of the card was device 1.

10/24/2012 18:11:57 | | NVIDIA GPU 0: GeForce GTX 275 (driver version 306.97, CUDA version 5.0, compute capability 1.3, 896MB, 825MB available, 933 GFLOPS peak)
10/24/2012 18:11:57 | | NVIDIA GPU 1: GeForce GTS 250 (driver version 306.97, CUDA version 5.0, compute capability 1.1, 512MB, 396MB available, 705 GFLOPS peak)
10/24/2012 18:11:57 | | NVIDIA GPU 2: GeForce GTS 250 (driver version 306.97, CUDA version 5.0, compute capability 1.1, 384MB, 307MB available, 705 GFLOPS peak)

I am attempting to BOINC to ignore device 2 with the following option in the cc_config.xml file.

<exclude_gpu>
<url>http://setiathome.berkeley.edu/url>
<device_num>2</device_num>
<app>SETI@home_enhanced</app>
</exclude_gpu>

What are you really trying to achieve? are you trying to totally ignore device two, Or are you just trying to get device two ignored at Seti only (and to only not use the Seti@home_enhanced app), and so be available for your other projects?

If you want to totally ignore device two use this instead:

<ignore_nvidia_dev>2</ignore_nvidia_dev>

Claggy

Dnolan & Glaggy -- thanks for your help. Glaggy, your suggesstion hit the spot right on. I did want totally ignore device two. Cut & pasted your ignore_ device line and restarted the application with the device totally ignored. Went into the app_info.xml and modified the count to (.5). Recycled the machine and now doing 2 tasks per GPU.

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I don't buy computers, I build them!!