source /opt/intel/oneapi/setvars.sh
This sets up paths and runtime environment for OpenCL execution. For example, the following paths are added. The compiler
/opt/intel/oneapi/compiler/latest/linux/bin/dpcpp
the includes in
/opt/intel/oneapi/compiler/latest/linux/include/sycl/
and libs in
/opt/intel/oneapi/compiler/latest/linux/lib/
and
/opt/intel/oneapi/compiler/latest/linux/compiler/lib/intel64_lin/
git clone --recurse-submodules https://github.com/hokkanen/opencl.git
export CPATH=$CPATH:$(pwd)/opencl/OpenCL-CLHPP/include
dpcpp cl_devices.c -lOpenCL
Alternatively, if you have CUDA installed, OpenCL code can easily be compiled with nvcc by
nvcc -arch=sm_80 cl_devices.c -lOpenCL
where -arch=sm_80 is the target architecture (NVIDIA A100 GPU).
./a.out