I'd like to limit the exclusive gpu app to just certain GPUs. I have one GPU I always want BOINC to run on, while the other I use for games. I edit <ignore_nvidia_dev> every time I want to play a game without disabling all GPUs. Is there a better way to go about this? I didn't catch it if it was in the configuration or FAQ.

You can use the <exclude_gpu> tag in cc_config.xml

<exclude_gpu>

Don't use the given GPU for the given project. If <device_num> is not specified, exclude all GPUs of the given type. <type> is required if your computer has more than one type of GPU; otherwise it can be omitted. <app> specifies the short name of an application (i.e. the <name> element within the <app> element in client_state.xml). If specified, only tasks for that app are excluded. You may include multiple <exclude_gpu> elements.

<exclude_gpu>
   <url>project_URL</url>
   [<device_num>N</device_num>]
   [<type>nvidia|ati</type>]
   [<app>appname</app>]
</exclude_gpu>

e.g.

<exclude_gpu>
   <url>http://albert.phys.uwm.edu</url>
   <device_num>0</device_num>
   <type>ati</type>
   <app>einsteinbinary_BRP4</app>
</exclude_gpu>

The above will tell the first ATI GPU in the system (device 0 = first device) to ignore the Albert project their OpenCL application. You can use multiple excludes per file.

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I've used <exclude_gpu> at some point to limit what project apps a certain GPU should be allowed to run. I don't want to exclude a GPU from a project or one of their specific apps or use by BOINC in general. Can I specify the GPUs <exclusive_gpu_app> configuration applies to?

No, all the tags in cc_config.xml are for all or nowt. The only way to do what you want is to switch between two cc_config.xml files.

No need to request it either, as the developers are looking into ways to make the whole of BOINC easier to use, not more difficult.

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