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I am currently running Ubuntu 16.04 on a machine with an AMD A8-5600K APU and a Radeon R9 270X. The amdgpu driver does not yet support my card and therefore I cannot use OpenCL on my GPU. However, I see no reason why OpenCL applications can't use my CPU.

I've installed every package I can think of - ocl-icd-libopencl1 Install ocl-icd-libopencl1, ocl-icd-opencl-dev Install ocl-icd-opencl-dev, etc.

I've written a simple application that enumerates available OpenCL platforms and it fails on the clGetPlatformIDs() call. What am I missing?


Edit: I installed the AMD APP SDK as recommended in SE6's answer but no platforms were showing up yet. Running strace revealed that the OpenCL ICD loader couldn't find libamdocl64.so.


Further edit: success! I was able to get it working using the following command:

sudo ln -s '/opt/AMDAPPSDK-3.0/lib/x86_64/sdk/libamdocl64.so' \
    /usr/lib/x86_64-linux-gnu/libamdocl64.so

(Replace /opt with the path you installed the AMD APP SDK to.)

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Install the AMD APP SDK from the AMD website you should then see your CPU available as an OpenCL device.

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    I managed to get it installed but the ICD doesn't seem to work. Still getting "no platforms". – Nathan Osman Sep 5 '16 at 22:44
  • I updated the question to reflect progress in debugging this. – Nathan Osman Sep 5 '16 at 22:58
  • ...and finally success! – Nathan Osman Sep 5 '16 at 23:07

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