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Editorial Team
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Asked: 2026-06-12T19:56:44+00:00

I am new to OpenCL. I have written a vector addition code in OpenCL

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I am new to OpenCL. I have written a vector addition code in OpenCL with help from Internet. I have included one header file i.e. CL/cl.h using #include.

I am using NVIDIA graphic card and the OpenCL implementation is NVIDIA_GPU_Computing_SDK. My OpenCL header files are residing at this path /opt/NVIDIA_GPU_Computing_SDK/OpenCL/common/inc. I can run OpenCL programs through linux terminal by adding this path when compiling my code. But now I want to write CMake file for this code. CMake files are working fine for C programs, but not OpenCL programs because of this Path problem. In terminal, I used to enter $cmake ., after this $make, it will search for a Makefile which is created by cmake, now my error is after entering command make

fatal error: CL/cl.h: No such file or directory!

Now tell me how can I include this header file into CMake file?

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1 Answer

  1. Editorial Team

    You will need to put these lines into CMakeLists.txt:

    include_directories(/opt/NVIDIA_GPU_Computing_SDK/OpenCL/common/inc)
link_directories(/opt/NVIDIA_GPU_Computing_SDK/OpenCL/common/<lib or something similar>)

add_executable(yourexe src1.c ...)
target_link_libraries(yourexe OpenCL)

    But beware that this is not portable, because OpenCL SDK can be somewhere else on another machine. The proper way to do this is to use FindOpenCL.cmake module.

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