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pocl 1.4 Portable Computing Language (pocl), an OpenCL implementation

Pocl is a portable implementation of the OpenCL standard (1.2 with some 2.0 features supported). This project seeks to improve performance portability of OpenCL programs with the kernel compiler and the task run-time, reducing the need for target-dependent manual optimizations.

pocl uses Clang as an OpenCL C frontend and LLVM for kernel compiler implementation, and as a portability layer. Thus, if your desired target has an LLVM backend, it should be able to get OpenCL support easily by using pocl.