Folding Forum

Gentoo is a compile focused distro, so can you recompile MESA without the options "--enable-opencl" and "--enable-opencl-icd"? I doubt any programs you use would require Mesa OpenCL when you have another OpenCL implementation. That might let you keep using applications which use...

Is there some way to force FAH to use the Nvidia platform while the Mesa platform is still present? I know you need Mesa for Crossover, but perhaps you could temporarily disable it and see if GPU folding works when you do that? That would at least isolate the error. Ohh, thanks! That solved the pro...

What is the output of the "clinfo" command run as root? If it doesn't show any cards, you might need to add some OpenCL development files. If clinfo lists something as root, but not as the fahclient user, it's likely a permissions issue still. Does your system have a "render" gr...

toTOW wrote:Remove the MESA OpenCL platform.

Crossover depends on it. Can I run foldingathome with it kept?

gunnarre wrote:Did running as root help? If not, I wonder if you'll need to install a full CUDA development environment to get the correct OpenCL files.

Running as root didn't help.

I've installed nvidia-cuda-sdk with opencl use flag enabled, but it didn't help either.

Looks like, from the thread I listed above, that you still have to run FAHClient as root(?!) on Gentoo. That might be the same error that gives a segfault when you run clinfo as the fahclient user. Gentoo bugs #714160 (1) and #712744 (2): (...) - In order to exploit CUDA, enable USE=+uvm for x11-dr...

gunnarre wrote:What is the output of

Code: Select all

eselect opencl list

I don't have it, as it is deprecated.

gunnarre wrote:The foldingathome user doesn't have a shell per default. Temporarily edit /etc/passwd and give the foldingathome user /bin/bash as a shell. Then you can test again. Remember to set the shell to false afterwards.

I set it to /bin/bash, but the output didn't change.

What is the output of the "clinfo" command run as root? If it doesn't show any cards, you might need to add some OpenCL development files. If clinfo lists something as root, but not as the fahclient user, it's likely a permissions issue still. Does your system have a "render" gr...

Gentoo is not an officially supported Linux distribution, but you might find some workarounds here: viewtopic.php?f=89&t=33333&p=318172 First add the fahclient user to the "video" group. Please post the first 100 or so lines of your log that explains what FAHClient sees about your...

Hi. I'm trying to fold on Gentoo Linux. I installed foldingathome from sci-biology/foldingathome. CPU folding worked fine, but GPU doesn't work. I think I have the nvidia driver and opencl installed, but FAHClient complains about "Failed to start core: OpenCL device matching slot 1 not found, m...