2 gpu's

Questions and Answers : GPU applications : 2 gpu's
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BlackDeath

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Message 1395656 - Posted: 27 Jul 2013, 18:39:17 UTC

it there a way to run an instance for each gpu.. or does bionc use all of them at once??
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Ulrich Metzner
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Message 1395732 - Posted: 27 Jul 2013, 22:58:36 UTC
Last modified: 27 Jul 2013, 23:04:10 UTC

BOINC only uses the one and only GPU, it considers the best. If you want to use more GPUs, you'll have to to tell it the client! You have to create a file named "cc_config.xml" in the BOINCDATA-folder and inside you have to put the following code:
<cc_config>
	<options>
		<use_all_gpus>1</use_all_gpus>
	</options>
</cc_config>

This way BOINC uses all GPUs and runs one instance of GPU-app per GPU.
Look here:
http://boinc.berkeley.edu/wiki/Client_configuration

[edit]
This is the way i do it. I run on GT 640 (primary with monitor) and GT 430 (secondary without any monitor).
Aloha, Uli

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BlackDeath

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Message 1395768 - Posted: 28 Jul 2013, 3:44:10 UTC - in response to Message 1395732.  

I'm not 100% sure its working..

i have a 680gtx and a 550ti...

i can still only see 1 instance of the gpu client running.. but i think its gotten faster.

is there a way i can find out if it actually is using both gpus?

thanks
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Message 1395769 - Posted: 28 Jul 2013, 3:47:37 UTC - in response to Message 1395768.  
Last modified: 28 Jul 2013, 3:48:49 UTC

I'm not 100% sure its working..

i have a 680gtx and a 550ti...

i can still only see 1 instance of the gpu client running.. but i think its gotten faster.

is there a way i can find out if it actually is using both gpus?

thanks


Your rig is still showing the 680 as your only GPU. Did you follow the instructions Ulrich gave you? If so, did you stop, close, and then re-start BOINC after you created the file as mentioned? When working correctly, you'll see two GPU WU's running simultaneously.
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Message 1395820 - Posted: 28 Jul 2013, 11:08:02 UTC - in response to Message 1395769.  

OK i just tried importing the config file under the advanced menu options.. i restarted the software and it works now.. than you very much guys
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Message 1395858 - Posted: 28 Jul 2013, 14:26:22 UTC - in response to Message 1395820.  

lovely... 550ti crunches on average 20 minutes..... 680gtx manages 10 minutes.. they both occasionally manage up to half that time
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Questions and Answers : GPU applications : 2 gpu's


 
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