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Problem with Mixed ATI GPU install
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Scott Brown Volunteer moderator
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This is a bit of an odd problem I suppose, but is there anything that can be done for a dual-GPU machine that mixes OpenCL capable ATI cards with older, non-OpenCL ATI cards. For example, I am running both an HD4650 and the onboard ATI GPU (based on the HD 2xxx series) in one machine. The 4650 can do OpenCL, so it is running the PPS sieves okay. However, the onboard GPU picks up that work and errors it out in 2-3 seconds. I am not flooding the PG servers with this one since I have Collatz catching the older GPU often enough (and running for about 8 hours per work unit to keep it busy).
I suppose I could just turn off the onboard GPU since it is quite slow. However, I could see someone with 3850/3870 cards mixed with 4xxx or 5xxx cards not being quite so eager to do so...
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Do not despair! ;) There is a cc_config.xml flag, which enables you to exclude the offending GPU from being used by BOINC. I am so sorry, but I don't remember it right now, and couldn't find it in heaps of boinc_dev / alpha emails. I hope someone will post the right answer soon, in meantime, I would suggest suspending GPU PG work.
BR
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 STE\/EVolunteer tester
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Not sure if this is what your looking for or not: I copied it from some notes I copied some time ago ...
Exclusion of GPUs: x (default none)
If a certain GPU should not be used by the app, one can exclude it. The GPU number has to be in
the range 0..31. The first GPU in the system has the number 0. This option can be used multiple
times. Per default, all supported ATI GPUs are used. Do not use it with an ATI aware BOINC client!
It should be ignored in that case. But there may be some unwanted side effects.
Example:
<cmdline>x1 x2</cmdline>
The app will not use the second and the third GPU in the system.
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HonzaVolunteer moderator
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Try this one, if you want BOINC not to use particular GPU (select the devide according to your configuration).
<cc_config>
<options>
<ignore_ati_dev>0</ignore_ati_dev>
</options>
</cc_config>
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Scott BrownVolunteer moderator
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Thanks to all so far...will try when I am next in front of that box (tomorrow hopefully).
However, I am not sure that any will yield the desired result of crunching another project (e.g., Collatz) on the non-OpenCL GPU while allowing PG to crunch on the 4650. Unless there is some option to exclude/include GPU on a project-by-project basis in the local client/files, I am not sure that there is a solution with the desired result available.
Probably best just to turn off the onboard GPU...
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141941*2^4299438-1 is prime!
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Thanks to all so far...will try when I am next in front of that box (tomorrow hopefully).
However, I am not sure that any will yield the desired result of crunching another project (e.g., Collatz) on the non-OpenCL GPU while allowing PG to crunch on the 4650. Unless there is some option to exclude/include GPU on a project-by-project basis in the local client/files, I am not sure that there is a solution with the desired result available.
Probably best just to turn off the onboard GPU...
the best solution would be that tps app is released under the ati_opencl class and not ati13ati (also because it's wrong!).
Under the ati_opencl boinc would not even try to use the integrated gpu. Under the ati13ati it tries because this plan class is compatible with your integrated gpu. I hope I'm clear enough... | |
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