Only one GPU at work....any suggestions
22 Jun 2013 2:53:08 UTC
Topic 197014
(moderation:
Boinc is current and nvidia driver is current.
The system was running fine with the 480 card.
I had a spare 460 card and installed it, now this is reported.
| CUDA: NVIDIA GPU 0 (not used): GeForce GTX 480 (driver version 320.18, CUDA version 5.50
| CUDA: NVIDIA GPU 1: GeForce GTX 460 (driver version 320.18, CUDA version 5.50
So is it possible to mismatch the cards in the system and both will function?
thx
Only one GPU at work....any suggestions
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Yes, but you will need to create a cc_config.xml file and set "use_all_gpus" to 1 (BOINC automatically uses the most powerful GPU(s)).
1
See e.g. this thread.
Copy, pasted, confirmed .xml
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Copy, pasted, confirmed .xml file.
Still shows only a single gpu at work.
1. Did you exit & restart
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1. Did you exit & restart BOINC?
2. Did you write the cc_config.xml file into the BOINC Data directory?
3. Did you make sure that the only extension on the file is .xml, not that whichever text editor added .txt, .doc, or something else?
4. If you meet all three above, you'll see in your Event Log (CTRL+SHIFT+E) a line like this:
6/22/2013 7:15:18 PM | | Config: use all coprocessors
When you do not see that line in your start-up messages, the file is not in the right directory, or doesn't contain the correct entries, or doesn't have the correct extension.
Sorted ! i placed the file
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Sorted !
i placed the file in the regular boinc directory instead of the Program Data directory, that of course, by default, is hidden by Win 7.
Found the solution in one of your earlier posts.
http://boinc.berkeley.edu/dev/forum_thread.php?id=7364
Now :
6/23/2013 8:41:32 PM | | OpenCL: NVIDIA GPU 0: GeForce GTX 480 (driver version 320.18, device version OpenCL 1.1 CUDA, 1536MB, 1370MB available, 1345 GFLOPS peak)
6/23/2013 8:41:32 PM | | OpenCL: NVIDIA GPU 1: GeForce GTX 460 (driver version 320.18, device version OpenCL 1.1 CUDA, 1024MB, 951MB available, 1025 GFLOPS peak)
6/23/2013 8:41:32 PM | | Config: use all coprocessors
Thanks for the solution.