opencl-clhpp-headers 2.0.10+git26-g806646c-1 (amd64 binary) in ubuntu focal

 OpenCL (Open Computing Language) is a multi-vendor open standard for
 general-purpose parallel programming of heterogeneous systems that include
 CPUs, GPUs and other processors.
 .
 This package provides the C++ development header files for the OpenCL API
 as published by The Khronos Group Inc. The corresponding specification and
 documentation can be found on the Khronos website.