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Number crunching :
On v8 , constant gpu usage interruptions on a HD 6950, know issue ?
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The_Matrix Send message Joined: 17 Nov 03 Posts: 414 Credit: 5,827,850 RAC: 0 |
Hello, above topic. Noticed with gpu-z with core2duo and amd card HD 6950 under Windows 7 64-bit. I used app_config.xml because , the gpu usage (with one wu) is constantly at 0% percent. With three wus the usage is sometimes on 100 percent, but falls back to zero. Dont know whats wrong with it. Any guesses ? |
Sutaru Tsureku Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 |
Which driver software you have installed? Old Catalyst or new Crimson, which version? In your PCs/results overview stay 1800.8, so I guess it's Catalyst v.x? In your setiathome.berkeley.edu project folder should be a file like mb_cmdline_win_x86_SSE2_OpenCL_ATi.txt (currently I'm at my non AMD/ATI VGA card PC. ;-) Open it with Notepad (german OS: Editor) and insert: -hp ...save and exit. This will give the GPU app more priority (high). I would test it first just with 1 WU/GPU, then with 2 WUs/GPU and so on... - not to overload the Duo CPU. |
The_Matrix Send message Joined: 17 Nov 03 Posts: 414 Credit: 5,827,850 RAC: 0 |
THX !!! That helped much. And increase of 300-400 percent usage (at 100%)in timeline are back. Catalyst 15.7.1 sorry, it was ONLY temporarly, back to the drops. using lesser wus wont change it to the better. ------------- OK, are there options in the driver versions ? Which one should I use ? 14.4 changes nothing on it. |
Sutaru Tsureku Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 |
Here is an interesting thread about: Radeon Software Crimson Currently it looks like: Message 1754968 my guess is that 280/380/7990 are somewhat related and you can run multiple wu per gpu On my FuryX's PC I have Crimson 16.1 installed, same driver 1912.5 in it like in Crimson 15.12, until now not tested if 2 WUs/GPU would be possilbe with the newest one. I guess, you could install Crimson 16.1 and let run multiple WUs/GPU on your HD6950 (if it's identical to the 280/380/7990 series). AFAIK it have to do which Graphics Core Next (GCN) version your GPU is/have. |
The_Matrix Send message Joined: 17 Nov 03 Posts: 414 Credit: 5,827,850 RAC: 0 |
ok, I will do that shortly. guess what ? no GPU found, I go back to 15.7.1 and continue crunshing, an ignore this gpu-z thing. Allright ? Greetings, and thanks for helping. |
Sutaru Tsureku Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 |
Strange. Here is written: AMD Radeon™ HD 8470, Radeon™ HD 8350, Radeon™ HD 8000 (​D/G variants), Radeon™ HD 7000 Series (HD 7600 and below), Radeon™ HD 6000 Series, and Radeon™ HD 5000 Series Graphics products have been moved to a legacy support model and no additional driver releases are planned. Catalyst 15.7.1 or Crimson 16.1 Beta This driver is provided "as is"​ and will not be supported with further updates, upgrades or bug fixes. It looks like it's a specially driver for non GCN series. You downloaded the software from there? MSI Afterburner is a well tool for ATI/AMD VGA cards. If you like, try it and look the GPU Load. |
Sutaru Tsureku Send message Joined: 6 Apr 07 Posts: 7105 Credit: 147,663,825 RAC: 5 |
Additional... I you would like to install a new driver, you should uninstall the old one first and use DDU (Display Driver Uninstaller) for to delete old stuff which could hinder the new driver. |
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