Forum > GPU crunching
Intel Core i7 920
TouchuvGrey:
--- Quote from: Claggy on 09 Jan 2010, 08:55:18 am ---
--- Quote from: TouchuvGrey on 09 Jan 2010, 07:27:32 am ---If i add a 2nd video card does it need to be the same as the 1st ?.
--- End quote ---
Nope, it doesn't have to be the same, but Boinc 6.10.x will only run the most capable by default,
you'll need to make a cc_config.xml (you don't have one by default) just copy the following, and paste it using Notepad,
then save it as cc_config.xml making sure it doesn't have a .txt extension, drop the file in your Boinc Data folder and restart Boinc.
--- Code: ---<cc_config>
<log_flags>
<sched_op_debug>1</sched_op_debug>
</log_flags>
<options>
<use_all_gpus>1</use_all_gpus>
</options>
</cc_config>
--- End code ---
--- Quote ---What percentage of the number crunching comes from the GPU
as opposed to from the CPU ?
--- End quote ---
Depends on the GPU / which project the GPU/CPU are running, expect some where between 50% and 90% total RAC coming from the GPU.
--- Quote ---What sort of gain could i expect from adding a 2nd video card ?
Just downloaded and installed Multibeam optimized app for
64 bit SSE 4.1
--- End quote ---
Claggy
--- End quote ---
OK, i'm obviously a congenital idiot or have not had enough coffee.
Where does the Boinc Data folder hide in Windows 7 64 bit ?
Claggy:
--- Quote from: TouchuvGrey on 10 Feb 2010, 07:17:51 am ---
--- Quote from: Claggy on 09 Jan 2010, 08:55:18 am ---
--- Quote from: TouchuvGrey on 09 Jan 2010, 07:27:32 am ---If i add a 2nd video card does it need to be the same as the 1st ?.
--- End quote ---
Nope, it doesn't have to be the same, but Boinc 6.10.x will only run the most capable by default,
you'll need to make a cc_config.xml (you don't have one by default) just copy the following, and paste it using Notepad,
then save it as cc_config.xml making sure it doesn't have a .txt extension, drop the file in your Boinc Data folder and restart Boinc.
--- Code: ---<cc_config>
<log_flags>
<sched_op_debug>1</sched_op_debug>
</log_flags>
<options>
<use_all_gpus>1</use_all_gpus>
</options>
</cc_config>
--- End code ---
--- Quote ---What percentage of the number crunching comes from the GPU
as opposed to from the CPU ?
--- End quote ---
Depends on the GPU / which project the GPU/CPU are running, expect some where between 50% and 90% total RAC coming from the GPU.
--- Quote ---What sort of gain could i expect from adding a 2nd video card ?
Just downloaded and installed Multibeam optimized app for
64 bit SSE 4.1
--- End quote ---
Claggy
--- End quote ---
OK, i'm obviously a congenital idiot or have not had enough coffee.
Where does the Boinc Data folder hide in Windows 7 64 bit ?
--- End quote ---
Windows Vista/Windows 7: C:\ProgramData\BOINC\
and it'll be hidden, so you'll need to unhide it.
See: The Big BOINC 6 Answer Thread.
Claggy
TouchuvGrey:
Thank you Claggy. Done, and this is what i'm getting now:
2/10/2010 6:55:52 PM SETI@home [sched_op_debug] Starting scheduler request
2/10/2010 6:55:52 PM SETI@home Sending scheduler request: To fetch work.
2/10/2010 6:55:52 PM SETI@home Reporting 2 completed tasks, requesting new tasks for GPU
2/10/2010 6:55:52 PM SETI@home [sched_op_debug] CPU work request: 0.00 seconds; 0 idle CPUs
2/10/2010 6:55:52 PM SETI@home [sched_op_debug] NVIDIA GPU work request: 777600.86 seconds; 1 idle GPUs
2/10/2010 6:56:02 PM SETI@home Scheduler request completed: got 0 new tasks
2/10/2010 6:56:02 PM SETI@home [sched_op_debug] Server version 611
2/10/2010 6:56:02 PM SETI@home Message from server: No work sent
2/10/2010 6:56:02 PM SETI@home Project requested delay of 11 seconds
2/10/2010 6:56:02 PM SETI@home [sched_op_debug] handle_scheduler_reply(): got ack for result 01dc06ac.27997.198061.11.10.28_0
2/10/2010 6:56:02 PM SETI@home [sched_op_debug] handle_scheduler_reply(): got ack for result 01dc06ac.27890.198061.10.10.174_1
2/10/2010 6:56:02 PM SETI@home [sched_op_debug] Deferring communication for 11 sec
2/10/2010 6:56:02 PM SETI@home [sched_op_debug] Reason: requested by project
can you or anyone else enlighten me as to what is going on ?
TouchuvGrey:
i modified the code Claggy supplied to read:
<cc_config>
<use_all_gpus>1</use_all_gpus>
</options>
</cc_config>
moved the 250 to Slot 1
the 220 to slot 2 restarted the client and now have:
2/11/2010 9:56:31 PM NVIDIA GPU 0: GeForce GTS 250 (driver version 19621, CUDA version 3000, compute capability 1.1, 1024MB, 470 GFLOPS peak)
2/11/2010 9:56:31 PM NVIDIA GPU 1: GeForce GT 220 (driver version 19621, CUDA version 3000, compute capability 1.2, 1024MB, 131 GFLOPS peak)
2/11/2010 9:56:31 PM SETI@home Found app_info.xml; using anonymous platform
2/13/2010 6:19:35 AM SETI@home Sending scheduler request: To fetch work.
2/13/2010 6:19:35 AM SETI@home Reporting 16 completed tasks, requesting new tasks for GPU
2/13/2010 6:19:45 AM SETI@home Scheduler request completed: got 0 new tasks
so if i'm reading this correctly i have both GPU's crunching now.
Claggy:
--- Quote from: TouchuvGrey on 10 Feb 2010, 08:11:59 pm ---Thank you Claggy. Done, and this is what i'm getting now:
2/10/2010 6:55:52 PM SETI@home [sched_op_debug] Starting scheduler request
2/10/2010 6:55:52 PM SETI@home Sending scheduler request: To fetch work.
2/10/2010 6:55:52 PM SETI@home Reporting 2 completed tasks, requesting new tasks for GPU
2/10/2010 6:55:52 PM SETI@home [sched_op_debug] CPU work request: 0.00 seconds; 0 idle CPUs
2/10/2010 6:55:52 PM SETI@home [sched_op_debug] NVIDIA GPU work request: 777600.86 seconds; 1 idle GPUs
2/10/2010 6:56:02 PM SETI@home Scheduler request completed: got 0 new tasks
2/10/2010 6:56:02 PM SETI@home [sched_op_debug] Server version 611
2/10/2010 6:56:02 PM SETI@home Message from server: No work sent
2/10/2010 6:56:02 PM SETI@home Project requested delay of 11 seconds
2/10/2010 6:56:02 PM SETI@home [sched_op_debug] handle_scheduler_reply(): got ack for result 01dc06ac.27997.198061.11.10.28_0
2/10/2010 6:56:02 PM SETI@home [sched_op_debug] handle_scheduler_reply(): got ack for result 01dc06ac.27890.198061.10.10.174_1
2/10/2010 6:56:02 PM SETI@home [sched_op_debug] Deferring communication for 11 sec
2/10/2010 6:56:02 PM SETI@home [sched_op_debug] Reason: requested by project
can you or anyone else enlighten me as to what is going on ?
--- End quote ---
the sched_op_debug flag is showing that you're asking for GPU work, and how much work you're asking for, that you're got an idle GPU without any work,
that the server didn't send you any work, and that two tasks got reported correctly,
Claggy
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