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I only get a util. of about 30% with 2 280x's -- how to fix??? Help please


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merle van osdol

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Message 64309 - Posted: 6 Feb 2016, 18:23:02 UTC

everything in title. Sorry

I only get a util. of about 30% with 2 280x's -- how to fix??? Help please
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merle van osdol

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Message 64310 - Posted: 6 Feb 2016, 18:26:23 UTC

Now my average is about 68% for both cards. Can we do 2 wu's at a time?
Thanks
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merle van osdol

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Message 64311 - Posted: 6 Feb 2016, 19:12:51 UTC
Last modified: 6 Feb 2016, 20:00:28 UTC

<app_config>
<app>
<name>milkyway</name>
<max_concurrent>6</max_concurrent>
<gpu_versions>
<gpu_usage>0.33</gpu_usage>
<cpu_usage>0.5</cpu_usage>
</gpu_versions>
</app>
</app_config>

This is what I am using right now. On average I am getting 75% util.
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merle van osdol

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Message 64317 - Posted: 7 Feb 2016, 12:30:41 UTC - in response to Message 64311.  

I'm OK now. Everything fine. Just a newbie.
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Profilekhryl

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Message 64321 - Posted: 7 Feb 2016, 13:58:18 UTC

how did you get boinc to run with 2 gpus?

my boinc (newest version) recognizes 2 gpus ( i have 2x r9 280x), but only uses 1. my app info is:

<app_config>

<app>
<name>milkyway</name>
<max_concurrent>2</max_concurrent>
<gpu_versions>
<gpu_usage>0.5</gpu_usage>
<cpu_usage>0.01</cpu_usage>
</gpu_versions>
</app>

<app>
<name>milkyway_separation__modified_fit</name>
<max_concurrent>2</max_concurrent>
<gpu_versions>
<gpu_usage>0.5</gpu_usage>
<cpu_usage>0.01</cpu_usage>
</gpu_versions>
</app>

</app_config>
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Message 64322 - Posted: 7 Feb 2016, 20:13:39 UTC

nevermind the above, found out myself :P
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merle van osdol

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Message 64323 - Posted: 8 Feb 2016, 7:08:57 UTC - in response to Message 64322.  

nevermind the above, found out myself :P



Great! :-)
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Profilemikey
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Message 64324 - Posted: 8 Feb 2016, 12:24:17 UTC - in response to Message 64311.  

<app_config>
<app>
<name>milkyway</name>
<max_concurrent>6</max_concurrent>
<gpu_versions>
<gpu_usage>0.33</gpu_usage>
<cpu_usage>0.5</cpu_usage>
</gpu_versions>
</app>
</app_config>

This is what I am using right now. On average I am getting 75% util.


This should be running 3 units at once, not 2. The "0.33" is one third of the whole so 3 units should be running at one time on each card. To only run 2 units at one time the setting would be "0.5", and to run 4 units at one time the setting would be "0.25". You have to be very careful to NOT overload the card though or it will overheat and it's lifespan will be MUCH shorter.
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Message boards : Number crunching : I only get a util. of about 30% with 2 280x's -- how to fix??? Help please

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