Ok. If I understand your posts correctly, below is what I assume you're seeing:

Virtual operating thread-count: 5-CPU-threads
Total (hardware) thread-count from AMD Phenom I: 4-CPU-threads

Actual thread distribution:
HCC done by CPU: 3-CPU-threads
HCC done by GPU: 2-CPU-threads (1-true-CPU-thread virtualised to 2-virtual CPU-threads)

Please confirm or deny. Thanks.
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The problem I see with his config file is he has 4 in the max_concurrent tag but the only .5 in the gpu_usage line. If he's still running 3 CPU tasks and 1 GPU tasks with that config file that's telling me his max_concurrent setting is overiding the gpu_usage setting. if he want to run 2 of each he needs to set max_concurrent to 2.

The config file I posted earlier for 2 GPU tasks and 2 SN2S tasks has been working fine for 4 days. I could run any combination of 8 tasks by changing the file parameters. I'm only running 4 as a test.

Yes, nano, made that conclusion already. See my last post and the one before. The <max_concurrent> line was designed for IO intense science limitations, speak help limit CEP2, so it's contribution can be boosted without micromanaging, no other purpose. We went and stretched the function, that's what users do, and discover what it does when used outside of it's objective.

I wouldn't call it virtualising. That's confusing. I have 4 cores no HT, so 4 threads.
Running 3 CPU-tasks each using 1 full thread and 2 GPU-tasks sharing 1 core/thread.
In fact I've 5 tasks running on 4 cores and no affinity used, so 5 tasks are fighting for CPU-time.
It's BOINC that's calculating what could run maximum: 3 cores for the cpu-tasks and 2 times .5 core = 1 core for 2 GPU-tasks.
My experience is that BOINC always first wants to run the GPU-tasks and leave the rest of free cores to CPU-tasks.
But in JEKlund's example it's running 3 cpu-tasks and 1 GPU.
I think BOINC calculated (max 4 is allowed) that running 3 CPU + .5 for 1 GPU (total 3.5 used) is better than running 2 CPU + 2x.5 (total 3 used).

Hi,

thanx CP and Sek .. I can confirm CP's findings :-) In that config it runs 5 tasks .. Actually what I first tried also works ( booted the whole machine and not it runs four tasks , 2 cpu and 2 gpu )

Thanx once more ..

Edit: Actually I found the error source ( sitting between desk and chair ): the name of the file was not app_config.xml but app_config.xml.txt .. I asked my elder son make the correction and reboot the server ( and I know that he will remind me as long as I live about that stupid error..)

I took the idea and make same kind of app_config.xml to another my machine with the following app_config-xml:

<app_config>
<app>
<name>hcc1</name>
<max_concurrent>8</max_concurrent>
<gpu_versions>
<gpu_usage>.5</gpu_usage>
<cpu_usage>1</cpu_usage>
</gpu_versions>
</app>
</app_config>

( this machine is Intel 2600K with 8 threads ). It is now running 8 tasks ( 6 cpu and 2 gpu as I wanted ):


17/12/2012 17:30:50 | World Community Grid | Restarting task X0960086261386200704122002_1 using hcc1 version 705 in slot 1
17/12/2012 17:30:50 | World Community Grid | Restarting task X0960086261392200704122002_1 using hcc1 version 705 in slot 3
17/12/2012 17:30:50 | World Community Grid | Restarting task X0960086261359200704122002_0 using hcc1 version 705 in slot 6
17/12/2012 17:30:50 | World Community Grid | Restarting task X0960086261292200704122003_0 using hcc1 version 705 in slot 2
17/12/2012 17:30:50 | World Community Grid | Restarting task X0960086261428200704122002_1 using hcc1 version 705 in slot 7
17/12/2012 17:30:50 | World Community Grid | Restarting task X0960086261469200704122001_0 using hcc1 version 705 in slot 0
17/12/2012 17:30:50 | World Community Grid | Restarting task X0900086290920200704271758_1 using hcc1 version 705 (ati_hcc1) in slot 4
17/12/2012 17:30:50 | World Community Grid | Restarting task X0900086290925200704271758_1 using hcc1 version 705 (ati_hcc1) in slot 8


"old man who cant even edit a file ..."

edit2: Of cource the cpu-amount with gpu can also be 1 as 6+1+1=8 :-)

PS: BOINC gives this kind of line when the file has the *right* name :

17/12/2012 17:30:49 | World Community Grid | Found app_config.xml