Just started crunching after a break and GPU work units are new to me. Is there a preference setting that I can limit GPU to Astropulse only? I.e. if no Astropulse work units available do not run anything on the GPU.

Many thanks

A preference setting, no.
But this can be set through the client configuration file cc_config.xml with the <exclude_gpu> option.

<cc_config>
<log_flags>
</log_flags>
<options>
<exclude_gpu>
   <url>http://setiathome.berkeley.edu</url>
   <app>astropulse_v7</app>
</exclude_gpu>
</options>
</cc_config>

You have your computers hidden so I don't know if you use an ATI, Nvidia or Intel GPU but you can specify those as well (<type>NVIDIA|ATI|intel_gpu</type>), especially when you have more than one GPU in the system. In this case you can also set the device number (<device_num>N</device_num>). The first GPU is device 0. The URL is non-HTTPS because the project doesn't use HTTPS for BOINC - only for the web pages.

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Ah ooops, I noticed I have given you the wrong application. :)

<cc_config>
<log_flags>
</log_flags>
<options>
<exclude_gpu>
   <url>http://setiathome.berkeley.edu</url>
   <app>setiathome_v8</app>
</exclude_gpu>
</options>
</cc_config>

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Cool, many thanks. I was going to try and figure out the correct name for the application but you saved me a lot of digging around.

A quick followup question. Back in the days when I started there was an optimised application for SETI. Done some digging and it sounds like such a thing still exists via lunatics. Did I understand this correctly and I assume if I installed lunatics I would then need to make the above edit again to the config file.

The stock GPU application is the same as a lot of the optimized GPU applications available through Lunatics. The only difference may be the SoG application, but I don't think that's available for Astropulse.

In any case, the app name you want to exclude doesn't change: you still want to run only Astropulse so you exclude all setiathome_v8 from the GPU. But do know that Astropulse isn't much available.

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Many thanks, yes my idea is to run Astropulse only on the GPU. My thinking is that my graphics card is a fanless one so I am a little nervous of running it 100% all the time, but I would be ok to use it if any Astropulse workunits are sent out.

Astropulse does put more of a load on the GPU than the general Multibeam tasks do, plus they run a lot longer on the GPU (being 8MB tasks). So it's probably not very wise to run it on a fanless GPU. Cheaper is even to put a small 80mm case fan on it.

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