I tried few combinations:
Drivers 12.8, 13.1, 13.4, 13.6 and bitcoin miner (from GUI mining - updated Dec 3 with 7970 bugfix, also supports Stratum!) 20121203 / 20120219
All drivers above 12.8 give me 100% CPU usage after some time (never longer then 5min), also with 20121203 client after next few min/sec performance went down from Mhash to khash so decrease 1000 times....
Only combination of 12.8 and 20120209 gives me comfortable set to maining. Important is that 12.8 always gives max speed and when U run the some game doesn't slow down a game performance. All later drivers prefer
OpenCL engine rather then DirectX/OpenGL so simple U cannot play the game, U have to stop the 'miner'.
When I was checking that, I always uninstall old drivers by AMD uninstalling tool, after restart I used Driver Fusion, and manually deleted opencl.dll and amdocl.dll from Windows folders then after next restart I installed new drivers.
System: Win 7 Ultimate 64bit
CPU: AMD FX 8150
MOBO: ASUS M5A97 fresh BIOS
HDD: 3x512GB RAID 5
GFX: 2x 7870 1.1GHz and 1.0GHz (manufacturer overclocking)
Dowloaded your software on a multi-gpu setup, have a few questions though:
1. Is the source of bitcoin available? I did saw some kernel files, so i guess atleast kernels are available.
2. Is the 100% CPU usage issue happen with any kernel that run on a multi-gpu setup, or some specific kernel?
3. I tried to run the software on a multigpu set-up, but in the "device" textbox, i could select only one device(out of 1 CPU and 2 GPUs). How to run it for multi-gpu.
4. Also the software seems to rely on some external server, and it was not running for me (IMHO), with the default server. Getting Error: Object in JSON format could not read (or something similar). Any ideas?
4. I am planning to modify SimpleMultiDevice sample to reproduce the issue. Any comments? Maybe you wanna do that
Thursday, June 6, 2013, 7:53:16 AM, you wrote:
> 1. Is the source of bitcoin available? I did saw some kernel files,
> so i guess atleast kernels are available.
GUIMiner is only a frond end (GUI) for other miners, I use poclbm
which is writen in pyton, source there:
Also after installation OpenCL parts are in plain text in program DIR.
> 2. Is the 100% CPU usage issue happen with any kernel that run on a
> multi-gpu setup, or some specific kernel?
I use only poclbm, but in few posts lads had this problem as well.
> 3. I tried to run the software on a multigpu set-up, but in the
> "device" textbox, i could select only one device(out of 1 CPU and 2
> GPUs). How to run it for multi-gpu.
Go to File=>New Miner=>OpenCL, You will have a new tab for new 'Miner'.
> 4. Also the software seems to rely on some external server, and it
> was not running for me (IMHO), with the default server. Getting
> Error: Object in JSON format could not read (or something similar). Any ideas?
U have to register, btcguild.com is OK.
If U don't want use my:
anglik666_4 and anglik666_5
pass is any (must be some but is whichever).
Server: Any BTCGuild from the list.
> 4. I am planning to modify SimpleMultiDevice sample to reproduce
> the issue. Any comments? Maybe you wanna do that
Sounds to me like a Mars expedition, maybe better I'll go for a pint
and U do that ?
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but yeah -- It looks like it gives away your e-mail address though...