How to setup OpenCL on AMD videocard with opensource driver?
mesa, opencl
Solution
I eventually enabled the free OpenCL stack, and ran into very similar problems. I'll provide an abridged overview, of some of the relevant packages.
That `libopencl1-mesa` is just the ICD runtime, which is loaded into the generic `ocl-icd-libopencl1`. Then `libclc` is used by `libopencl1-mesa` to deal with the OpenCL Kernels. Using an LLVM chipset specific backend, `libclc` generates instructions. You're missing the GPU chipset specific glue, which is provided by the missing `.bc`. This is greatly simplified, but for this problem it should suffice, still a good diagram would help immensely.
In your particular example, the `.bc`'s would be provided by `libclc-r600` However I'm not seeing anything for your chipset 'DONE', on this Freedesktop.org GalliumCompute page. It appears the lowest supported chipset is the Evergreen (HD5000 Series).
* please recheck GalliumCompute if you read this after 02-04-2014.
Problem
I have read this link - https://wiki.debian.org/ru/AtiHowTo and decide to setup OpenCL. the r600g driver still have to load proprietary microcode into the GPU to enable hardware acceleration. This firmware is usually included in the kernel, but is packaged separately in Debian. So, I installed firmware: ``` # apt-show-versions firmware-linux-nonfree firmware-linux firmware-linux-nonfree:all/sid 0.40 uptodate firmware-linux:all/sid 0.40 uptodate ``` Then I upgrade kernel version: ``` uname -v #1 SMP PREEMPT RT Debian 3.12.8-1 (2014-01-19) ``` and checked kernel flags: ``` grep DRM_RADEON /boot/config-$(uname -r) CONFIG_DRM_RADEON=m # CONFIG_DRM_RADEON_UMS is not set grep AGP /boot/config-$(uname -r) CONFIG_AGP=y CONFIG_AGP_AMD64=y CONFIG_AGP_INTEL=y CONFIG_AGP_SIS=y CONFIG_AGP_VIA=y ``` Also I setup xserver version recent enough: ``` # apt-show-versions xorg xorg:amd64/sid 1:7.7+5 uptodate ``` I choose radeon as driver: You most certainly are using wheezy's xserver-xorg-core which does not provide xorg-video-abi-6.0 any more, and radeonhd is not available for the newer xorg-video-abi because it has been removed from Debian ``` # apt-show-versions xserver-xorg-video-radeon xserver-xorg-video-radeon:amd64/sid 1:7.3.0-1 uptodate ``` This gives me OpenGL working: ``` $ glxinfo | grep OpenGL OpenGL vendor string: X.Org OpenGL renderer string: Gallium 0.4 on AMD RV770 OpenGL core profile version string: 3.1 (Core Profile) Mesa 10.1.0-devel (git-81144c0 saucy-oibaf-ppa+curaga) OpenGL core profile shading language version string: 1.40 OpenGL core profile context flags: (none) OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 10.1.0-devel (git-81144c0 saucy-oibaf-ppa+curaga) OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: ``` I am trying to use application which works with OpenCL. This programs works ok on CPU: ``` $ mono scallion/bin/Debug/scallion.exe parallax Cooking up some delicions scallions... Putting 1 patterns into 1 buckets. Using kernel optimized from file kernel.cl (Optimized4) Using work group size 1 Compiling kernel... done. LoopIteration:10 HashCount:167.77MH Speed:7.8MH/s Runtime:00:00:21 Predicted:19:38:20 Stopping and shutting down... LoopIteration:11 HashCount:184.55MH Speed:7.8MH/s Runtime:00:00:23 Predicted:19:36:58 init: 2687ms / 1 (2687ms, 0.37/s) generate key: 153ms / 6 (25.5ms, 39.22/s) cpu precompute: 7ms / 6 (1.17ms, 857.14/s) total without init: 23706ms / 1 (23706ms, 0.04/s) set buffers: 0ms / 11 (0ms, 0/s) write buffers: 0ms / 11 (0ms, 0/s) read results: 23699ms / 11 (2154.45ms, 0.46/s) check results: 0ms / 11 (0ms, 0/s) 7.78 million hashes per second Stopping and shutting down... ``` But I am unable to detect GPU: ``` $ mono scallion/bin/Debug/scallion.exe Usage: scallion [OPTIONS]+ regex [regex]+ Options: -l, --listdevices Lists the devices that can be used. -d, --device=VALUE Specifies the opencl device that should be used. ``` There is no GPU in the list of devices: ``` $ mono scallion/bin/Debug/scallion.exe -l Id:0 Name:Intel(R) Core(TM)2 Quad CPU Q9650 @ 3.00GHz PreferredGroupSizeMultiple:1 ComputeUnits:4 ClockFrequency:2000 MaxConstantBufferSize:65536 MaxConstantArgs:8 MaxMemAllocSize:2147483648 ``` I am unable to find instructions on how to setup OpenCL: ``` apt-get install libclc-r600 apt-show-versions libclc-r600 ocl-icd-libopencl1 libclc-r600:all/saucy 0~git20140101-1~gd~s uptodate ocl-icd-libopencl1:amd64/sid 2.1.3-2 uptodate ``` and after starting application I receive an error: ``` ~/github.com/lachesis/scallion$ mono ./scallion/bin/Debug/scallion.exe -l Unhandled Exception: System.InvalidOperationException: ErrorCode:'-1001' at scallion.CLDeviceInfo.CheckError (Int32 err) [0x00000] in :0 at scallion.CLDeviceInfo.GetPlatformIds () [0x00000] in :0 at scallion.CLDeviceInfo.GetDeviceIds () [0x00000] in :0 at scallion.CLRuntime.GetDevices () [0x00000] in :0 at scallion.Program.ListDevices () [0x00000] in :0 at scallion.Program.Main (System.String[] args) [0x00000] in :0 [ERROR] FATAL UNHANDLED EXCEPTION: System.InvalidOperationException: ErrorCode:'-1001' at scallion.CLDeviceInfo.CheckError (Int32 err) [0x00000] in :0 at scallion.CLDeviceInfo.GetPlatformIds () [0x00000] in :0 at scallion.CLDeviceInfo.GetDeviceIds () [0x00000] in :0 at scallion.CLRuntime.GetDevices () [0x00000] in :0 at scallion.Program.ListDevices () [0x00000] in :0 at scallion.Program.Main (System.String[] args) [0x00000] in :0 ``` The error code values are defined in opencl.h It look like your platform is not configured properly. CL_PLATFORM_NOT_FOUND_KHR (-1001) error from clGetPlatformIDs. That's because you do have the dispatcher, but no actual OpenCL drivers." After ``` sudo apt-get install libopencl1-mesa $ find / -iname «libMesaOpenCL.so*» 2>/dev/null /usr/lib/x86_64-linux-gnu/libMesaOpenCL.so /usr/lib/x86_64-linux-gnu/libMesaOpenCL.so.1.0.0 /usr/lib/x86_64-linux-gnu/libMesaOpenCL.so.1 ``` In configuration file there should be ``` cat /etc/OpenCL/vendors/mesa.icd libMesaOpenCL.so ``` The error is ``` fatal error: cannot open file '/usr/lib/clc/rv770-r600--.bc': No such file or directory ``` How to make this work?