Help with AMD RX 480

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Kent Harald Rasmussen

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Message 1800932 - Posted: 5 Jul 2016, 14:19:20 UTC

Hello everybody.

I need som help with my RX 480.
The processing time per WU is really long 30+ minutes, ut to 90 minutes.
My R9 280X did a WU in about 15 minutes.

I am currently running 2 tasks on the GPU with one CPU core feeding the GPU.
I am also using the optimized binaries from Lunatics.

Can anybody tell me what i am doing wrong?
When i got the new graphics card i just swapped the old one out and installed the new one with the newest drivers.

Specs:
Mobo: Maximus VIII Hero Alpha.
CPU: i7-6700K skylake 4000@4700MHz.
GPU: AMD RX 480 running stock.
RAM: 16GB Corsair Vengeance DDR4 3000@3200MHz

Regards.
Kent.
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Urs Echternacht
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Message 1800966 - Posted: 5 Jul 2016, 22:05:38 UTC - in response to Message 1800932.  

Do you use a commandline with options somewhere ?
If, it is not used currently (looking at your results! )

Set on the commandline at least :
-sbs 256 -np

The first will allow usage of faster so called LotOfMem-path.
The second will allow better GPU usage with more than one task running.

(But eventually the current driver is causing problems and you need to wait for a better driver.)
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Kent Harald Rasmussen

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Message 1800982 - Posted: 5 Jul 2016, 23:02:37 UTC - in response to Message 1800966.  

Thanks for your reply Urs Echternacht.

Unfortunately i do not know how to set the commandline.
Can you or sombody else tell me how?

Sorry for the noob question.

Regards.
Kent.
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Urs Echternacht
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Message 1801086 - Posted: 6 Jul 2016, 15:51:43 UTC - in response to Message 1800982.  
Last modified: 6 Jul 2016, 15:52:55 UTC

As you have no idea, but installed via lunatics installer everything that is needed, maybe starting with some reading is a good idea.
http://boincfaq.mundayweb.com/index.php?language=1&view=499&sessionID=213173d9c19851da8a88280b6b932dc9
This should explain what using lunatics means when looking at BOINC.

Now that you know a little, you could try to locate your app_info.xml file in your projects/setiathome.berkeley.edu/ directory. To that file the <cmdline></cmdline> will be added.

p.s. until Friday 8th july 2016 there is announced a new driver 16.7.1 (see radeon.com)
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Kent Harald Rasmussen

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Message 1801175 - Posted: 6 Jul 2016, 22:31:07 UTC - in response to Message 1801086.  

Thank you.

I wil do some reading.

Regards.
Kent.
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Message boards : Number crunching : Help with AMD RX 480


 
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