Only CUDA... Normal??

Questions and Answers : GPU applications : Only CUDA... Normal??
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Gary

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Message 856438 - Posted: 22 Jan 2009, 16:42:46 UTC

Hello,

CUDAs are now downloading for me just fine and running just fine on my laptop. However, I'm only getting CUDA work units now, so my system is no wonly crunching one task at a time instead of using my cpu cores to do more tasks.

Anyways to help it get other tasks?

Thanks,
Gary
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Fred W
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Message 856455 - Posted: 22 Jan 2009, 18:17:43 UTC - in response to Message 856438.  

Hello,

CUDAs are now downloading for me just fine and running just fine on my laptop. However, I'm only getting CUDA work units now, so my system is no wonly crunching one task at a time instead of using my cpu cores to do more tasks.

Anyways to help it get other tasks?

Thanks,
Gary

Enable AstroPulse or another project. You can't crunch "normal" SETI MB on BOTH the CPU and the GPU ATM.

F.
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Gary

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Message 856463 - Posted: 22 Jan 2009, 18:30:50 UTC - in response to Message 856455.  
Last modified: 22 Jan 2009, 18:52:56 UTC

I've never turned off astropulse and I was getting astropulse before.
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Fred W
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Message 856481 - Posted: 22 Jan 2009, 19:45:07 UTC - in response to Message 856463.  

I've never turned off astropulse and I was getting astropulse before.

Sorry. Assumption on my part. In that case, I share your confusion.

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Gary

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Message 856519 - Posted: 22 Jan 2009, 20:56:16 UTC - in response to Message 856481.  

It just kind of defeats the purpose of getting better results from CUDA when less overall processing is being done by only doing one task at a time instead of three or four.
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Message 856530 - Posted: 22 Jan 2009, 21:15:42 UTC
Last modified: 22 Jan 2009, 21:25:38 UTC

Check easy stuff first..............

under Seti@Home Preferences listed here under your seti account.

Run only the selected applications SETI@home Enhanced: yes
Astropulse: yes

If no work for selected applications is available, accept work from other applications? no
Use Graphics Processing Unit (GPU) if available yes

I find that the no answer on the 3rd question gives me a more ballanced mix of AP and Enhanced work. Might be just my view of course. YMMV on that question.

Also these are seperate settings based on the work venue. Home, School and so forth. Make sure the computer is assigned to the venue you want and that the above settings are correct for what that venue.
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Message 856540 - Posted: 22 Jan 2009, 21:26:53 UTC - in response to Message 856530.  
Last modified: 22 Jan 2009, 21:32:45 UTC

My settings match yours... Just to see if I would get any other jobs today, I was aborting the CUDA downloads. I got almost 700 CUDA work units, and evenutally got 2 non-CUDA seti at home work units. Basically, 99.7% CUDA and 0.3% other. We'll see what happens tomorrow... If this is going to be the norm then I might just turn off the GPU processing, because the CUDA units don't run fast enough to make up for not using the CPU.
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Message 856544 - Posted: 22 Jan 2009, 21:33:47 UTC

Your situation would probably be better handled in the future when AstroPulse and Mulitbeam are truly considered seperate projects by Boinc with seperate DCF for each project and seperate cache levels to maintain.

Until then we will have to work within the restrictions of the current Boinc framework.
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Message 856556 - Posted: 22 Jan 2009, 21:59:07 UTC - in response to Message 856544.  

Thanks for the input... I was worried if there was a problem. But at least, what I can do is turn off the SETI on the settings, get a couple of AP work units, then turn the SETI back on to get the CUDA Units.. That would work for me.. a little bit too much manual labor, but it might work.
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Message 856572 - Posted: 22 Jan 2009, 22:40:04 UTC

That's probably the best thing to do in this situation. I'm sure Berkeley is working to resolve a lot of Cuda - Boinc problems and have been since Cuda was released. Just going to take more time to refine Boinc to run both projects but we'll get there.

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Message 856586 - Posted: 22 Jan 2009, 23:23:42 UTC - in response to Message 856572.  

yes, I understand... I hope no one thinks I'm complaining. Trying to provide information that will help figure out what problems there are...
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Message 857046 - Posted: 24 Jan 2009, 3:26:14 UTC

I was working fine on two systems with both CUDA and non-CUDA workunits downloading. The problem of getting only CUDA work seems to have started once the 6.08 version of CUDA reared its head. (All my other systems are backleveled and do not work with CUDA yet either due to older NVidia driver or an older non-CUDA-capable NVidia card.)
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Message 857701 - Posted: 25 Jan 2009, 17:25:05 UTC

Although I know I had CUDA and CPU units running concurrently for a while, I found the answer in the FAQ:

Q) Does SETI@home run GPU and CPU versions simultaneously?

No. If BOINC determines your CPU is capable of running the CUDA version, only the CUDA version of SETI@home will run. One copy will run on each GPU you have installed. If you want to keep your CPUs occupied at the same time, you can join another BOINC project.
The BOINC developers expect the capability to run CPU and GPU jobs simultaneously for the same application will be added in the next couple months.

I may wind up turning CUDA off on my Quad-cores (unless I can get some VM setups running CPU units) until this is 'solved', via this FAQ:

Q) The CUDA version of SETI@home crashes on my system. How do I go back to using the CPU version?

If you go to your SETI@home preferences you will see a new option Use Graphics Processing Unit (GPU) if available. If you set it to no, only the CPU based version of SETI@home should run.

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Questions and Answers : GPU applications : Only CUDA... Normal??


 
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