third gpu wont use cuda


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Message boards : Number crunching : third gpu wont use cuda

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nicko42004200
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Message 995720 - Posted: 12 May 2010, 4:20:51 UTC

i have a gtx295 and a 8600gt, the 8600gt is a cuda card but cant get it to do work. any ideas???

jravin
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Message 995742 - Posted: 12 May 2010, 6:48:49 UTC - in response to Message 995720.

In your cc_config.xml file (in BOINC folder) you need

<use_all_gpus>1</use_all_gpus>

tag, otherwise will only use "best" GPU.
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Profile Gundolf Jahn
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Message 995747 - Posted: 12 May 2010, 7:30:51 UTC - in response to Message 995742.

In your cc_config.xml file (in BOINC folder) you need...

That's BOINC data folder ;-)

@nick: see answers to your posts in all the other fora.

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Profile MarkJProject donor
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Message 995768 - Posted: 12 May 2010, 11:55:58 UTC

Under Vista and Win 7 you need to put a VGA dummy plug (or some other load) on it before it will let you use it. It lets you use the first 2 devices, but the 3rd is the one that needs the load.

Oh and you'll need the cc_config as previously mentioned because the cards are different.
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nicko42004200
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Message 1004492 - Posted: 16 Jun 2010, 2:16:23 UTC

ive tried making and putting in the cc file under the main folder and in the local folder and nuthing. , where does it go?
running windows 7 64 bit.....

nicko42004200
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Message 1004494 - Posted: 16 Jun 2010, 2:20:24 UTC - in response to Message 1004492.

o-yea, have a second monitor connected to it and screen is extended.

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Message 1004510 - Posted: 16 Jun 2010, 2:57:16 UTC - in response to Message 1004494.
Last modified: 16 Jun 2010, 3:00:17 UTC

The cc_config file goes in program data/BOINC file

Oh, and once you put the cc_config file in there go to BOINC Manager/advanced tab/ read config file to have it read the file and start using it.
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nicko42004200
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Message 1004515 - Posted: 16 Jun 2010, 3:16:21 UTC - in response to Message 1004510.

i tried putting it just in the file folder, and updated config and nuthing

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Message 1004547 - Posted: 16 Jun 2010, 7:01:09 UTC - in response to Message 1004515.

Where did you place the file? Please give (copy&paste) full path.

What do you find in your Messages tab after a restart of BOINC? There will be a line like this:

15/06/2010 11:51:08||Data directory: C:\Programme\BOINC

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Terror Australis
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Message 1004552 - Posted: 16 Jun 2010, 7:43:46 UTC
Last modified: 16 Jun 2010, 7:45:07 UTC

What driver version are you using? I've found that sometimes the video card drivers get confused when trying to pair up such mismatched cards because the driver requirements are so different.

I could not get a GTX285 and an 8600GT to work together in the same XP machine despite trying several different driver versions. The first sign of trouble was that the fan on the 8600 was turned off by the driver as the computer booted, so beware.

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Message 1004558 - Posted: 16 Jun 2010, 7:57:05 UTC - in response to Message 1004515.
Last modified: 16 Jun 2010, 7:58:08 UTC

i tried putting it just in the file folder, and updated config and nuthing

GPU related changes to cc_config.xml require a restart of the client. A simple re-read of the config file does not suffice. So exit BOINC (BOINC Manager->Advanced view->File->Exit, check "Stop running science applications when exiting the manager"->OK) and restart it (Start->Programs->BOINC->BOINC Manager) after you put the file in the BOINC Data directory.
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Message boards : Number crunching : third gpu wont use cuda

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