Additional CPU cores for CPU WUs in App_Info fails

[0ne.shot]

OK, so recently I've been messing with avgCPU counts to see if I can run more threads than physical cores on CPU projects. I am using a 4 core CPU, and am running 1 ATI HCC GPU WU and 15 SN2S tasks on 4 physical cores (AMD CPU). My total runtime should increase 4 times on this CPU and 2 times on my other CPU running the 7950. I'll keep everyone posted on the runtime gains over the next few days. I'll post my code for those who want to try this out.

<app_info>
   <app>
      <name>hcc1</name>
      <user_friendly_name>Help Conquer Cancer</user_friendly_name>
   </app>

   <file_info>
      <name>wcg_hcc1_img_7.05_windows_intelx86__ati_hcc1</name>
      <executable/>
   </file_info>

   <file_info>
      <name>hcckernel.cl.7.05</name>
      <executable/>
   </file_info>

   <file_info>
      <name>wcg_hcc1_img_7.05_windows_intelx86</name>
      <executable/>
   </file_info>

   <app_version>
      <app_name>hcc1</app_name>
      <version_num>705</version_num>
      <platform>windows_intelx86</platform>
      <plan_class>ati_hcc1</plan_class>
      <avg_ncpus>.25</avg_ncpus>
      <max_ncpus>1.0</max_ncpus>
      <coproc>
         <type>ATI</type>
         <count>.5</count>
      </coproc>
      <file_ref>
          <file_name>wcg_hcc1_img_7.05_windows_intelx86__ati_hcc1</file_name>
          <main_program/>
      </file_ref>
      <file_ref>
         <file_name>hcckernel.cl.7.05</file_name>
         <open_name>hcckernel.cl</open_name>
      </file_ref>
   </app_version>

<app_version>
    <app_name>hcc1</app_name>
    <version_num>705</version_num>
    <platform>windows_intelx86</platform>
    <avg_ncpus>1.000000</avg_ncpus>
    <max_ncpus>1.000000</max_ncpus>
    <flops>3231932486.733310</flops>
    <api_version>6.12.34</api_version>
    <file_ref>
        <file_name>wcg_hcc1_img_7.05_windows_intelx86</file_name>
        <main_program/>
    </file_ref>
</app_version>



<app>
    <name>sn2s</name>
    <user_friendly_name>Say No to Schistosoma</user_friendly_name>
</app>
   <file_info>
      <name>wcgrid_sn2s_vina_6.20_windows_x86_64</name>
      <executable/>
   </file_info> 
   <file_info>
      <name>wcgrid_sn2s_vina_prod_x86_64.exe.6.20</name>
      <executable/>
   </file_info>
   <file_info>
      <name>wcgrid_sn2s_gfx_prod_x86_64.exe.6.20</name>
       <executable/>
   </file_info>
<app_version>
    <app_name>sn2s</app_name>
    <version_num>620</version_num>
    <platform>windows_x86_64</platform>
    <avg_ncpus>1.0</avg_ncpus>
    <max_ncpus>1.0</max_ncpus>
    <flops>3347548492.458962</flops>
    <api_version>6.12.34</api_version>
    <file_ref>
        <file_name>wcgrid_sn2s_vina_6.20_windows_x86_64</file_name>
        <main_program/>
    </file_ref>
    <file_ref>
         <file_name>wcgrid_sn2s_vina_prod_x86_64.exe.6.20</file_name>
          <open_name>AutoDockVina64.exe</open_name>
     </file_ref>
     <file_ref>
         <file_name>wcgrid_sn2s_gfx_prod_x86_64.exe.6.20</file_name>
          <open_name>graphics_app</open_name>
     </file_ref>
</app_version>
<app_version>
    <app_name>sn2s</app_name>
    <version_num>620</version_num>
    <platform>windows_intelx86</platform>
    <avg_ncpus>1.0</avg_ncpus>
    <max_ncpus>1.0</max_ncpus>
    <flops>3347548492.458962</flops>
    <api_version>6.12.34</api_version>
    <file_ref>
        <file_name>wcgrid_sn2s_vina_6.20_windows_x86_64</file_name>
        <main_program/>
    </file_ref>
    <file_ref>
         <file_name>wcgrid_sn2s_vina_prod_x86_64.exe.6.20</file_name>
          <open_name>AutoDockVina64.exe</open_name>
     </file_ref>
     <file_ref>
         <file_name>wcgrid_sn2s_gfx_prod_x86_64.exe.6.20</file_name>
          <open_name>graphics_app</open_name>
     </file_ref>
</app_version>



</app_info>

I think I have an extra SN2S, but I wanted to make it work and it works so I'm not going to touch it!

[0ne.shot]

Apparently this does not work. Some tasks took 16 hours to complete, and used around 5 hours of runtime. All of those tasks are invalid. I guess they've already thought of people doing this.

[Conquistador SW]

Hmm, I did run 12 threads (only GPU WU's) on a i7 930 + HD7970 and that worked fine; no invalids and normal runtimes etc.
However, I saw no point increase at all compared to just running 8 WU's at the time while others with 6 cores showed that 12 threads should do better than 8 with a 7970.

[0ne.shot]

I should have clarified. I created extra CPU cores in App_info for to CPU project for more runtime. This didn't work. It works fine on HCC GPU WUs tho.

This was only tested with SN2S. I'm not sure if it'll be the same with other projects.

[Evantaur]

it does work but i think half core = half the cpu time

my llano rig runs 2 hcc ati:s and 6 cpu tasks atm

edit2: math sucks!

[Snow Crash]

Hmm, I did run 12 threads (only GPU WU's) on a i7 930 + HD7970 and that worked fine; no invalids and normal runtimes etc.
However, I saw no point increase at all compared to just running 8 WU's at the time while others with 6 cores showed that 12 threads should do better than 8 with a 7970.

The difference comes from what the CPU cores are capable of and how much context switching you are forcing them to deal with. Evidently a 6 core will be able to handle more than 4cores.
An interesting note ( to me anyway) is that running 8 HCC GPU tasks on a 7850 w/ i7-920 actually works better with HT off than HT on ... I'm guessing that is because the GPU is not using CPU constantly but when it does need it a non-HT thread is better and if I stagger the WUs correctly there is never more than 2-3 hitting the CPU cores for the starting and closing processing at the same time. I moved that card to my 980X because it clocks higher than style 920 and 6 cores provides even more headroom than 4.

I should have clarified. I created extra CPU cores in App_info for to CPU project for more runtime. This didn't work. It works fine on HCC GPU WUs tho.

This was only tested with SN2S. I'm not sure if it'll be the same with other projects.

This is expected result for all CPU tasks. Sorry I did not read your thread when you first started it, myself and others have tried this before and could have saved yo the effort.

it does work but i think half core = half the cpu time

my llano rig runs 2 hcc ati:s and 6 cpu tasks atm