OpenCL ICD does not find radeon GPU
I have two GPUs in my laptop: integrated Radeon GPU, and discrete NVIDIA GPU, as shown by inxi:
$ inxi -G
Graphics:
Device-1: NVIDIA GA106M [GeForce RTX 3060 Mobile / Max-Q] driver: nvidia
v: 535.86.05
Device-2: AMD Cezanne [Radeon Vega Series / Radeon Mobile Series]
driver: amdgpu v: kernel
Device-3: Quanta HD User Facing type: USB driver: uvcvideo
Display: x11 server: X.Org v: 1.21.1.7 with: Xwayland v: 22.1.8 driver: X:
loaded: amdgpu,nvidia unloaded: fbdev,modesetting,nouveau,radeon,vesa
dri: radeonsi gpu: amdgpu resolution: 1920x1080~144Hz
API: OpenGL v: 4.6 Mesa 23.0.4-0ubuntu1~23.04.1 renderer: AMD Radeon
Graphics (renoir LLVM 15.0.7 DRM 3.49 6.2.0-32-generic)
But if I ask clinfo to list the OpenCL drivers, it will only find one for the NVIDIA, and not one for the Radeon.
$ clinfo -l
Platform #0: NVIDIA CUDA
`-- Device #0: NVIDIA GeForce RTX 3060 Laptop GPU
What do I need to do to make the Radeon usable for OpenCL?
I am running Ubuntu 23.04 and X11.
DRM info:
$ drm_info | grep Driver
├───Driver: amdgpu (AMD GPU) version 3.49.0 (20150101)
├───Driver: nvidia-drm (NVIDIA DRM driver) version 0.0.0 (20160202)
After $ sudo apt install mesa-opencl-icd I now see more OpenCL platforms.
$ clinfo -l
Platform #0: NVIDIA CUDA
`-- Device #0: NVIDIA GeForce RTX 3060 Laptop GPU
Platform #1: Clover
`-- Device #0: AMD Radeon Graphics (renoir, LLVM 15.0.7, DRM 3.49, 6.2.0-32-generic)
Platform #2: rusticl
Unfortunately, using the radeon opencl platform yields an error.
cannot open file '/usr/lib/clc/gfx909-amdgcn-mesa-mesa3d.bc': No such file or directory
So even though there is now an ICD for the radeon GPU, it is bugged and not usable.