OpenCL

OpenCL (Open Computing Language) is a framework for writing programs that execute across heterogeneous platforms consisting of CPUs, GPUs, and other processors. OpenCL includes a language (based on C99) for writing kernels (functions that execute on OpenCL devices), plus APIs that are used to define and then control the heterogeneous platform. OpenCL provides parallel programming using both task-based and data-based parallelism.

Official site

Online Man pages on the official site

Wikipedia OpenCL

OpenCL at Apple Developer library

OpenCL headers are available in FPC packages. Headers are can be used for both MacOSX 10.6 OpenCL framework and NVidia OpenCL Windows .dll