poclbm using CPU 100% even though using GPU? - page 7.

rikur

full member

Activity: 216

Merit: 100

I just spent 2 hours trying to solve the issue by installing different versions of both the Catalyst drivers and the stream SDK- nothing helped.

Combinations I tried:
10.09 + 2.1 SDK
10.10 + the included OpenCL runtime
10.10 + 2.1 SDK
11.2 + 2.1 SDK
11.2 + 2.3 SDK
11.4rc2 + 2.3 SDK

.. and maybe some others. Every combination still used 100% of a CPU core for each GPU core.

Hope this saves some time from others. Any ideas on how to fix the issue are also welcome

LeonGeeste

newbie

Activity: 48

Merit: 0

I ran into the same problem, though it came to my attention in a different context. My system is now:

Ubuntu 10.10
Radeon HD 5870
AMD Sempron 140

dishwara

legendary

Activity: 1855

Merit: 1016

I am on windows 7 32 bit with Intel Quad core 2.66GHz Q8400.

rikur

full member

Activity: 216

Merit: 100

I'm also on Win7 64bit and seeing the same issue. Newest Catalyst drivers and Stream SDK.

Must have something to do with the 64bit windows. IIRC, I tried this on 32bit win7 and didn't have such problems. Maybe someone else could confirm if they're not having this issue on 32bit win7.

Luckily I have 4 cores.. But the rig is still consuming almost 100w more than it should :--/

lach

newbie

Activity: 7

Merit: 0

thanks for that,
installed the new drivers & SDK and no change. Each gpu is still maxxing out a core when mining Sad

dishwara

legendary

Activity: 1855

Merit: 1016

Any one with 2 cards & windows 7 32 also have this problem?

I have HD6870 & getting around 270Mhash/s after OC of core to 1038 & mem to 375, lowering mem clk reduced heat from 74C to 66C.
I do have the poclbm taking some cpu percentage & most time i see 20% in task manager.
I have 11.2 & 2.3 SDK.
However yesterday i find the preview of ati next driver version 11.4(not 11.3) with SDK 2.4 & installed it.
I see 2 difference mainly.
1. Before its always 99% GPU in MSI afterburner(only a straight line), now it floats from 92 to 99.
2.poclbm uses now 0 cpu, even though i am running with/without -f1.

So, i think its not bad to try new version even though u have 5XXX series card.
Also, i still dont understand why all saying to use -w128 , as 6870 actually max work is 256 & placing -w256 increases 2-4Mhash/s.

U can download the drive from here.
http://support.amd.com/us/kbarticles/Pages/Catalyst114earlypreview.aspx

Also, instead of express, go for custom & select only APP, driver, catalyst..only what u want, many r useless to mining, hydra...
Today, itself without a single reboot , i upgraded, downgraded, upgraded, downgraded.....from 11.2 to 11.4 & from 2.4-2.3-2.2-2.4....
Just go fro custom & don't install useless. U can verify ur SDK & ATI version using gpu caps viewer.
Hope this helps.

lach

newbie

Activity: 7

Merit: 0

Just thought id add im win7 64bit too.

Is the dud combination multiple ati 5xxx gpu's+win7 64bit?

qed

full member

Activity: 196

Merit: 100

Quote from: Cerebrum on March 14, 2011, 07:52:10 AM

You all should probably read through a few of the other threads on this forum.

To get better performance, you should:

-Use Stream SDK 2.1.
-Use the display drivers from Catalyst 10-11.
-Turn off crossfire if possible.
-Use Linux. I've heard that people had problems running DiabloMiner in Ubuntu, so I might suggest Debian instead. There are guides for getting many miners up and running on different linux platforms if you're unfamiliar with how to use it. Look around on the forums to find them. Get ready to use the command line.

Kinda hard to do that with Cayman gpu supporting only 11.1 and later. Under linux there isnt voltage controll to reduce power consumption.

johnieeliang

newbie

Activity: 14

Merit: 0

whats your gpu usage at?

Cerebrum

newbie

Activity: 34

Merit: 0

You all should probably read through a few of the other threads on this forum.

To get better performance, you should:

-Use Stream SDK 2.1.
-Use the display drivers from Catalyst 10-11.
-Turn off crossfire if possible.
-Use Linux. I've heard that people had problems running DiabloMiner in Ubuntu, so I might suggest Debian instead. There are guides for getting many miners up and running on different linux platforms if you're unfamiliar with how to use it. Look around on the forums to find them. Get ready to use the command line.

ZeroByte

newbie

Activity: 2

Merit: 0

I got this same problem after i added second HD 5850.

I have quad core i5 processor so when i start first instance CPU goes up to 25% and after starting second one it goes up to 50%
MH/s rates are always normal nevertheless.

Specs:

Win 7 64bit
Cats 11.2
AMD Stream 2.3
Dual 5850s
Miner: poclbm_py2exe_20110311

qed

full member

Activity: 196

Merit: 100

Quote from: m0mchil on March 14, 2011, 04:29:03 AM

Please give some more details about your OS, driver version, ATI Stream (APP) SDK version... Do you have crossfire?

If you have more than 1 video card detected, Crossfire or not, in windows you will have high cpu usage. Try to start it with only 1 card plugged.

phathash

member

Activity: 75

Merit: 10

I am using streamsdk_2-3_win764

ATI Radeon HD 5700 Series. Driver Version: 8.821.0.0. Driver Date: 26/01/2011.

11-2_vista64_win7_64_dd_ccc_ocl.exe

W7 64.

Very strange.

kindle

member

Activity: 84

Merit: 10

Hmm same here...haha looks like i posted on the main thread. But im running 5970 + 5850, 11.2 ccc and 2.2 stream with 25% load per poclbm instance. Win 7 64 bit here.

lach

newbie

Activity: 7

Merit: 0

I am also having this problem. 2x 5570's, non crossfire, amd system too

lastest version of the miner with 2.3 sdk

m0mchil

full member

Activity: 171

Merit: 127

Please give some more details about your OS, driver version, ATI Stream (APP) SDK version... Do you have crossfire?

phathash

member

Activity: 75

Merit: 10

Ok. So I had a 5770 running in my PC running poclbm.exe using -d0 (Juniper). Was getting 150000 khash/s. CPU was naturally at 0% as I was using the GPU.

I've added a second 5770 to the same motherboard. I now have 2 x 5770 -

[ 0 ] Juniper
[ 1 ] Juniper
[ 2 ] AMD Athlon

The problem is that whenever I run poclbm.exe against either -d0 or -d1, my CPU is taxed 100% by poclbm ? I still get the 150000 khash/s on each card, but my CPU is now running at 100%. What's up with that?

Thanks.

Topic: poclbm using CPU 100% even though using GPU? - page 7. (Read 64932 times)