python OpenCL bitcoin miner

[bitjet]

similar problem with q6600 + 5970, W7 x64, ati 2.3.451

each instance of poclb using one core to the full


no such problem with single 5870 - it uses 3-5% of cpu

Im having the same problem on intel i5.

[snedie]

poclbm: each miner appears to use exactly 25% of your CPU. Open task manager and start/stop a miner.

[qed]

poclbm: each miner appears to use exactly 25% of your CPU. Open task manager and start/stop a miner.

Each miner is using 1/N_Core of your CPU, where n_Core is the number of Cores detected by windows. If you have HyperThreading, enable it to half the CPU usage.

[snedie]

poclbm: each miner appears to use exactly 25% of your CPU. Open task manager and start/stop a miner.

Each miner is using 1/N_Core of your CPU, where n_Core is the number of Cores detected by windows. If you have HyperThreading, enable it to half the CPU usage.

i5, no hyperthreading

[m0mchil]

It shouldn't use any CPU (unless you use it on your CPU which you should not). Any other CPU usage is cleanly problem of driver + OpenCL SDK + OS.

[kindle]

Hi m0mchil I do experience 25% load on the cpu per poclbm instance. I have tried running with 10.11 + 2.1 stream but poclbm refused to load. Also 11.2 + 2.1 doesnt work either saying that no opencl device detected. 11.2 + 2.2 on the other hand runs with the 25% load issue. I am running win 7 64 bit. Any advice on the configuration?

[DarkMatter]

poclbm: each miner appears to use exactly 25% of your CPU. Open task manager and start/stop a miner.

Each miner is using 1/N_Core of your CPU, where n_Core is the number of Cores detected by windows. If you have HyperThreading, enable it to half the CPU usage.

This won't half the cpu usage, just apparently.

[qed]

poclbm: each miner appears to use exactly 25% of your CPU. Open task manager and start/stop a miner.

Each miner is using 1/N_Core of your CPU, where n_Core is the number of Cores detected by windows. If you have HyperThreading, enable it to half the CPU usage.

This won't half the cpu usage, just apparently.

It half the cpu time, as well as Watt and cpu usage %. Another "solution" is to stack all the process in 1 core, changing the Cpu Affinity under the system monitor (CTRL+ALT+CANC).

[Grinder]

It half the cpu time, as well as Watt and cpu usage %.

No, it just looks that way because Windows will say that 100% of one core on a dual core CPU is 25% instead of 50%. You still only have two cores, and a single process will 100% of it even if you enable HT. Enabling HT will not give you twice as many cores or twice as high performance. If two process use the same core with HT, it will only be a few percent more efficient than using a single core at best. Setting affinity is much better.

[qed]

It half the cpu time, as well as Watt and cpu usage %.

No, it just looks that way because Windows will say that 100% of one core on a dual core CPU is 25% instead of 50%. You still only have two cores, and a single process will 100% of it even if you enable HT. Enabling HT will not give you twice as many cores or twice as high performance. If two process use the same core with HT, it will only be a few percent more efficient than using a single core at best. Setting affinity is much better.

Too bad my Watt meter do not agree with you.

[Grinder]

Windows has probably put two process on the same core, then.

[DarkMatter]

It half the cpu time, as well as Watt and cpu usage %.

No, it just looks that way because Windows will say that 100% of one core on a dual core CPU is 25% instead of 50%. You still only have two cores, and a single process will 100% of it even if you enable HT. Enabling HT will not give you twice as many cores or twice as high performance. If two process use the same core with HT, it will only be a few percent more efficient than using a single core at best. Setting affinity is much better.

Too bad my Watt meter do not agree with you.

It's not that hard
http://en.wikipedia.org/wiki/Hyper-threading

[marcus_of_augustus]

What's the new message all about ...

16/03/2011 11:53:09, 68b26a98, accepted                     
16/03/2011 11:53:19, a7c9af8b, accepted                     
16/03/2011 11:54:54, a59d5bc1, accepted                     
16/03/2011 11:56:08, 06783321, accepted                     m0mchil's python miner
16/03/2011 11:56:51, 14d00ef9, accepted                     
16/03/2011 11:57:57, 676f7efb, accepted                     

[Litt]

win 7 64 with 2 6970's and I'm getting 50% usage. 25% for each gpu instance. Was on 2.3 11.2 and was having this prob. Now on 11.4 and 2.4 and still having the same usage prob. Doesn't fix anything.

[fatcom4]

When I download it on Windows 7 it says "What should Firefox do with this file?" then you can tick a "Open with" box that has a "Browse..." button after it, or a "Save File" box. I tried both but I didn't know what program to open it with. Also, I followed the first three steps of these instructions. Only the first three because the rest was for after downloading the miner.

[urizane]

It's a 7zip file.  Open it with any good archiver like 7zip/WinRAR/etc....

[fatcom4]

K thanks! I just downloaded 7zip(this comp didn't have it before), so I'll try using it.

[fatcom4]

Ummm, now I'm on step 5 of this, and I made the notepad file with the .bat extension in the C:\bitcoin\poclbm_py2exe_20110222 file and saved it with the stuff it told me to put in it. However, when I did the next part, double clicking it, which should show my hash rate, it just made a command prompt window pop up for about half a second and then close. I was supposed to save this in C:\bitcoin\poclbm_py2exe_20110222, right?

[Grinder]

- Open the C:\bitcoin\poclbm_py2exe_20110222 directory in explorer
- Create a short cut to poclbm.exe on your desktop by right clicking on it and dragging it
- Right click on the new desktop icon and click properties
- Add the parameters you need to the exe file
- Save.

I think this method is much easier. The GUI version makes it even easier, though.

[OVerLoRDI]

Has anyone found a fix for the full CPU usage of poclbm with sdk 2.3 and 6xxx cards?

Note: you HAVE to use sdk 2.3 with the 6xxx cards.