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Pocl

May 26, 2018

POrtable Computing Language (POCL)

Portable OpenCL pocl

Portable OpenCL aims to be an efficient open source MIT-licensed implementation of the OpenCL 1.2 standard.

In addition to producing an easily portable open source OpenCL implementation, another major goal of the project is improving performance portability of OpenCL programs with compiler optimizations, reducing the need for target-dependent manual optimizations. At the core of pocl is a set of LLVM passes used to statically parallelize multiple work-items with the kernel compiler, even in the presence of work-group barriers. This enables parallelization of the fine-grained static concurrency in the work groups in multiple ways SIMD, VLIW, superscalar,….

The code base is modularized to allow easy adding of new “device drivers” in the host-device layer. A generic multithreaded “target driver” is included. It allows running OpenCL applications on a host that supports the pthread library with multithreading at the work group granularity.

WWW http//portablecl.org/