I'm running SETI as my only Project on BOINC 7.8.3. Windows 10 Pro x64. My average credit had been running just over 13,000 for a long time. On the Dec 31st I 'upgraded' to BOINC version 7.8.3 Right after that, my avg credit started to drop and is now at about 7,300. When I look at my Tasks, I see that "GPU missing" is listed for all the Tasks that require my GPU. It is an nVidia GTX680 "driver version 388.13, CUDA version 9.1 compute capability 3.0". The Control Panel shows it "working properly" and I haven't noticed any display adapter problems associated with other programs. I just noticed that my BOINC Event Log has a line reading, "App version needs OpenCL but GPU doesn't support it".

Screen grab:
http://erbland.org/post/problem.jpg

I posted this question to the "Windows" Community before I realized that I probably have a GPU configuration problem. I don't know how to move this post to the "GPU applications" community. Should it be moved or is it OK to leave it here?

GigaByte X58A-UD3R
24 GB DDR3
i7 Hex core @ 3.2GHz, 256kB L2, 12MB L3
GTX680 512kB L2, 4GB 6GHz

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Have you tried to reinstall your videocard drivers?
The drivers you have now, were those installed by you or by Windows? Windows' installed drivers (through Windows Update) usually lack parts, be it CUDA or OpenCL.
Always install the drivers from the manufacturer's site, in this case https://www.nvidia.com/Download/index.aspx?lang=en-us
Set Windows Update to not install updates for your drivers.

The newest drivers are 390.65 WHQL

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Thanks Jord! Installing the latest nVidia Drivers has fixed the problem. BOINC can see the GPU again. I guess Windows must have done an automatic update that I had forgotten about. Per your suggestion, I searched how to stop Windows 10 Pro from automatically updating drivers during Windows updates. I found several different methods and wasn't sure which one to use. I finally settled on going to "Device installation settings" and answered "No" to the question "Do you want to automatically download manufacturers' apps and custom icons available for your updates?" Is this the correct way to prevent Windows from replacing the nVidia drivers during the next Windows update? Thanks for your help.

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I'll have to leave that answer to someone with Windows 10. I'm not touching that version with a barge pole, not even if it was the last version of Windows on Earth, specifically because of these 'command decisions' by Windows deciding they know better than you to install 'the latest' of anything. That and all the data they send back about the system and its usage. Never.

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I am seeing the same issue with slowness/throughput... I have 7 machines running BIONIC 24/7. before upgrading to 7.8.3 my average was >31K credits/day... after upgrade daily total is down around 24K/day... any one else seeing this slowdown? If so ... any fix in the works?

That's due to the slow link to Green Bank and therefore a limited amount of work available. Everyone's affected.

Slow network connection to Green Bank
Something is happening to the network connection between Green Bank and Berkeley that is slowing down the rate at which we can transfer data for splitting. We've opened a trouble ticket with campus networking services. Hopefully they will be able to find and fix the problem quickly. Until then, work may be in short supply.

News.
Thread in Number Crunching

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