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Number crunching :
Help with AMD RX 480
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Author | Message |
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Kent Harald Rasmussen Send message Joined: 22 Nov 05 Posts: 9 Credit: 86,933,200 RAC: 164 |
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. |
Urs Echternacht Send message Joined: 15 May 99 Posts: 692 Credit: 135,197,781 RAC: 211 |
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.) _\|/_ U r s |
Kent Harald Rasmussen Send message Joined: 22 Nov 05 Posts: 9 Credit: 86,933,200 RAC: 164 |
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. |
Urs Echternacht Send message Joined: 15 May 99 Posts: 692 Credit: 135,197,781 RAC: 211 |
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) _\|/_ U r s |
Kent Harald Rasmussen Send message Joined: 22 Nov 05 Posts: 9 Credit: 86,933,200 RAC: 164 |
Thank you. I wil do some reading. Regards. Kent. |
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