Just an FYI

Windows Vista Ultimate 64
EVGA8800GTS512 Driver v. 182.08

I'm back to using Boinc 6.2.19 since I've yet to see an implementation of CUDA that is acceptable on my system...

Big hit on graphic performance... and performance doesn't increase back to normal on suspend of tasks...

have to completely shut down Boinc to get my computer back to normal.

Once again... just an FYI

This is a known side-effect of using CUDA. It is using your GPU at saturation, Seti using over 200MB of video memory to run in. Seti is also advising people to only run CUDA when they aren't using the system for anything else.

Suspending tasks in BOINC 6.4 won't unload a task from the video memory.
With the upcoming BOINC 6.6 you will see this happen, although only after the task has checkpointed at least once.

Read my CUDA FAQ (link in signature) for a lot more information on what you can expect.

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Thanks... very helpful. Especially...

"Can't I turn the damn thing off?
Yes, you can. In Seti, go to your Project preferences, edit them, take the check mark off of "Use Graphics Processing Unit (GPU) if available", save the changes. Then open BOINC manager->Advanced view->Projects tab->select Seti->click Update. Any work that is still appointed to the GPU will still be done, but you won't get new CUDA work"

I had tried this but didn't realize I needed to abort all the CUDA work too.

I'm now running 6.4.7 with CUDA turned off and no issues.

Thanks again :-)

And thank you. :-)

I have adapted the FAQ now, telling that you can also manually abort the Seti CUDA work still on your computer.

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