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[osaad]

OpenCL doesn't see the GPU

Hi guys, i've been developing with OpenCL for a while now and i did just fine on previous versions of ubuntu.

After updating to ubuntu 10.10, i can only run OpenCL on my CPU.

I have ati mobility radeon 4650.

I'm using ati catalyst driver 10-11 (built deb packages and installed them).

For OpenCL i tried both the .deb packages from a post here on the forum and ati stream sdk v2.1 tarball (I was able to compile the samples but they gave me CL_DEVICE_NOT_FOUND error at the end of every run).

any ideas?

[nou]

run FindNumDevices from CAL examples.

[osaad]

gives me this

./FindNumDevices ./FindNumDevices: error while loading shared libraries: libaticalrt.so: cannot open shared object file: No such file or directory

[osaad]

just tried 10-9 driver, same problem.

[nou]

then there is a problem with instaled driver.

[osaad]

i used to have this same problem with cal in 10.4 but OpenCL detected my GPU never the less.

so what can i do now? i tried 4 different drivers, 10-4,6,9,11.

versions 4 and 6 worked fine in ubuntu 10.4 but here they break with xorg.

also i noticed that the menus are missing the Catalyst control center that i had in ubuntu 10.4 and 9.10.

[osaad]

Updating my kernel headers fixed this problem. :S

[himanshu_gautam]

Osaad,

I saw in installation notes that ubuntu 10.10 is not listed in supported OSes.

Can you please describe the procedure which made it work for you?

[osaad]

Originally posted by: himanshu.gautam Osaad,

I saw in installation notes that ubuntu 10.10 is not listed in supported OSes.

Can you please describe the procedure which made it work for you?

i'm using the 10-11 driver from ati's website. and using the OpenCL packages from this post

then i just updated normally, it installed the new kernel headers 2.35.23.25 and the driver worked fine, OpenCL and everything was fine.