Posts by derelict

1) Message boards : GPUs : BOINC causes "device is not removable and cannot be ejected or unplugged." (Message 71872)
Posted 25 Aug 2016 by derelict
Post:

All the using for calculations and straining is done by the project's science applications, so if there would be trouble here, it would be best to report that at the project.


The problem occurs as soon as I start BOINC Manager, well before any work units start running.

But did you even look at the thread I linked to? Or did you just shrug it off, because you feel it isn't the solution to your problem, even when 10 people in the thread show the exact same error message, though with their different Nvidia GPUs?


Like I wrote, I had gone through the process of updating drivers before posting. I had also gone through the pages you linked, hence the driver change experience. The latest BOINC version causes this problem with two different official Nvidia drivers.

Rolling back drivers on a working system seems a bit absurd, especially when there's no actual explanation for the problem and the approach is essentially "let's try every version and see if BOINC works, even though every other GPU intensive software works fine".


If you look at the threads in question, you'll see that in Linux it's problematic, not so much in OS X or Windows.


I've been a BOINC user for a long time now. Windows GPU support has been far from good or stable. BTW, the Nvidia (actually hexus.net) link you posted states that 'it seems like if you do try and eject your GPU you get an error message saying "Problem ejecting Nvidia GeForce [model number]", explaining that the "device is not removable and cannot be ejected or unplugged"' , so it seems reasonable that some piece of software (or a bug) is causing this eject attempt.

Your system, your decision.


Not sure that's a great way to get volunteers for a project, but thanks anyway.
2) Message boards : GPUs : BOINC causes "device is not removable and cannot be ejected or unplugged." (Message 71856)
Posted 24 Aug 2016 by derelict
Post:
I struggle to see how this is an Nvidia bug, namely because it only happens if and when I start BOINC Manager.

It rather seems like BOINC's handling of GPUs is a bit shaky, given that I can run virtually any GPU-demanding software (e.g. games, benchmarks) and that I've tried BOINC with two different Nvidia drivers, namely the latest stable version. I've also run GPUGrid on another laptop with different Intel + Nvidia GPUs without this happening.

I really don't feel like going throught the trial & error of uninstalling and reinstalling multiple versions and combinations of drivers for 2 GPUs on a system that's working perfectly, so, sadly, the solution seems to be to abandon GPUGrid until BOINC's GPU support improves...judging by the amount of posts and tutorials related to getting BOINC to actually use a GPU, I hope it's anytime soon...
3) Message boards : GPUs : BOINC causes "device is not removable and cannot be ejected or unplugged." (Message 71832)
Posted 24 Aug 2016 by derelict
Post:
I have a Nvidia Geforce 930M on my laptop, and installed the latest BOINC version and attached Rosetta and GPUGrid.

Now, whenever BOINC starts, I get an error saying that "Device Nvidia Geforce 930M is not removable and cannot be ejected".

After that, my GPU is no longer recognized in Device Manager (it gets moved from the Display Adapters section to the Other Devices section).

This only happens if/when I start BOINC, both with older Nvidia drivers (two versions ago) and with the latest drivers.

Is there any fix for this?



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