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Profile Mike O
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Message 846526 - Posted: 29 Dec 2008, 22:04:53 UTC

Ok...
I cant seem to find a way to get more slots.. quad core.. 4 slots for WUs to run.. Ok good :) I have a nVidia 8800.. good.. and it does well until all slots are pluged with Astro's leaving NO slot for regular WUs to run with the nVidia.
So.. I set the max CPUs to use to 3 (75%).. Well guess what? It counts the CUDA as one of the Q6600's cores and BANG!.. 2 cores doing Astros and the CUDA doing one.
When the third core enabled gets an Astro Pulse, than the CUDA will stop working all together as it did with 4 CPU cores enable! :(
This bug needs fixed and fast so the cuda and astros can run at the same time and use all the power in my case.

If there is a way to bump the slots from 4 to 5, I think that would fix it but I can't find a way to do this.

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Profile Raistmer
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Message 846529 - Posted: 29 Dec 2008, 22:14:29 UTC - in response to Message 846526.  

Ok...
I cant seem to find a way to get more slots.. quad core.. 4 slots for WUs to run.. Ok good :) I have a nVidia 8800.. good.. and it does well until all slots are pluged with Astro's leaving NO slot for regular WUs to run with the nVidia.
So.. I set the max CPUs to use to 3 (75%).. Well guess what? It counts the CUDA as one of the Q6600's cores and BANG!.. 2 cores doing Astros and the CUDA doing one.
When the third core enabled gets an Astro Pulse, than the CUDA will stop working all together as it did with 4 CPU cores enable! :(
This bug needs fixed and fast so the cuda and astros can run at the same time and use all the power in my case.

If there is a way to bump the slots from 4 to 5, I think that would fix it but I can't find a way to do this.

<ncpus>5</ncpus> in cc_config.xml, look other threads.
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Profile mr.kjellen
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Message 846530 - Posted: 29 Dec 2008, 22:14:35 UTC - in response to Message 846526.  
Last modified: 29 Dec 2008, 22:15:19 UTC

You need to create a cc_config.xml specify number of cpus to 5, and put it into your boinc folder.
Check Raistmers thread for an optimized AP plus CUDA release. Then run 4 AP units and one CUDA.

edit: got beaten to it... ;)
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Profile Mike O
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Message 846531 - Posted: 29 Dec 2008, 22:17:16 UTC - in response to Message 846530.  
Last modified: 29 Dec 2008, 22:24:44 UTC

Yes.. I just read that thread and thanks.. I will try that..

Yep.. that did the trick.. YIPPY!!
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Message 846591 - Posted: 30 Dec 2008, 0:43:40 UTC

I found that thread too and it sorted my problem.
4 cpu and 1 gpu now.
Bambi

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Profile Paul D. Buck
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Message 846794 - Posted: 30 Dec 2008, 7:48:53 UTC

Be aware that with more than one CUDA card you may see tasks in a Running state with no progress. This is because the CUDA cards are "starving" the task of CPU. I am not sure that happens here, but it did happen to me with two GPU and two running GPU Grid tasks ( a later version of the Science Application, pulled for other bugs, seemed to have fixed this) YMMV
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Message 847102 - Posted: 31 Dec 2008, 5:37:13 UTC

Also if you run out of CUDA work it will try to run the 2+1, 4+1 even if you don't have GPU work. Kind of slows down the other work.
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Message boards : Number crunching : More Cuda questions


 
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