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robotoni
Adept I

amd clinfo (opencl) doesn't work on Fedora 17 when NFS is turned on

When NFS is turned off, clinfo works fine and shows the two installed devices. When turning NFS on for a Netgear 2100 NAS, clinfo doesn't work anymore. It just hangs.

I have installed amd-driver-installer-catalyst-12.10-x86.x86_64.zip and AMD-APP-SDK-v2.7-lnx64.tar.

I have no clue, why NFS and opencl is connected and how to fix it.

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binying
Challenger

Re: amd clinfo (opencl) doesn't work on Fedora 17 when NFS is turned on

http://graphics.stanford.edu/~yoel/notes/clInfo.c

If you use this clinfo.c, would the issue occur?  If it occurs, it may give some clues.

It's  a long shot though.

robotoni
Adept I

Re: amd clinfo (opencl) doesn't work on Fedora 17 when NFS is turned on

Thanks for the code and help.

I debugged a little and it stops at

   if ((status = clGetPlatformIDs(numPlatforms, platformList, NULL)) != CL_SUCCESS) {

in main.

No idea why.

Also just heard that the current fedora 17 kernel has a problem with NFS and automount.

Will try now to get and an older kernel.

Currently I am running 3.6.1-1.fc17.x86_64.

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robotoni
Adept I

Re: amd clinfo (opencl) doesn't work on Fedora 17 when NFS is turned on

Solved the problem now with a workaround.

I mount the NAS over NFS 2 min. after reboot.

Hopefully this problem will be solved by some updates.