Problem with a R9 390X when run 2 or more WUs at a time.

hotze33
hotze33
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Hi, catalyst 14.8 now gives

Hi, catalyst 14.8 now gives me also invalid results when running two wus with my 290 ...
13.12 and 14.4 give valid results for two wus but the runtime is worse than running just a single wu and a newer driver.

Sasa Jovicic
Sasa Jovicic
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Try clenup gpu driver with

Try clenup gpu driver with DDU and install Catalyst 13.12. It is very fast and stable driver to use with E@H.

woohoo
woohoo
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Sounds like newer driver and

Sounds like newer driver and one wu per gpu is the way to go for now

woohoo
woohoo
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Another option might be

Another option might be linux?

astrocrab
astrocrab
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but for 1 wu average gpu load

but for 1 wu average gpu load is 67% only. i spent so much money not for 67% load =)

woohoo
woohoo
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i understand where you're

i understand where you're coming from. you have something that is a good value based on theoretical maximum performance and efficiency. on this project any amd card above a tahiti class isn't going work well with multiple wu per gpu. i don't know when i'll get around to trying linux again. i can't be sure if the problem is with the hardware and/or the drivers. if you just got the card maybe you can return it, but some nvidia cards cost real money

mountkidd
mountkidd
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RE: Another option might be

Quote:
Another option might be linux?


The same problem has been happening with Linux m/c's using the Hawaii/Tonga cards. Drivers don't seem to be the problem. It may be something in the structure of the app, which the developers will have to sort out...

Gord

woohoo
woohoo
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then linux isn't the answer

then linux isn't the answer either.

for now einstein is a backup project for me and i just run one wu per gpu on 15.7.1/15.9.1 drivers.

some might wish that the app would more load the gpu more but then heat could become an issue

astrocrab
astrocrab
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how could we report to the

how could we report to the developers about this problem?

juan BFP
juan BFP
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FYI the problem happening in

FYI the problem happening in SETI to, so is not E@H related it´s something diferent.

For all i was ablle to dig it´s related to the driver itself, but the older drivers seems to be slower so the only real option for now it´s running 1 wu at a time.

What i did not try is what happening when you start 2 compleately separate boincs on the same host (not just run 2 wu at a time), may that works but i´m unable to test that option remotely maybe you could try and tell us what happeing.

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