[Haskell-cafe] ANN: OpenCLRaw 1.0.1000
jefferson.r.heard at gmail.com
Mon Aug 17 19:49:57 EDT 2009
All, I've released a raw binding to the OpenCL platform on Hackage.
The main differences between it and the C bindings are that constants
have been replaced by newtypes for type safety reasons, void-essential
functions that return a token errorcode return a Maybe ErrorCode, and
functions that return a handle/ptr and return an error-code through an
out-parameter return instead an Either ErrorCode a. Modules are
grouped roughly by the section in which they appear in the standard.
I'm working on an OpenCL binding that is a little more "cooked" as
well as a high-level OpenCL binding.
OpenCL is a platform for single-host heterogenous, data-parallel
computing that follows roughly the OpenGL and OpenAL conventions for
how the library is architected. It will be available by default in
the next version of Apple's OS-X, and there are drivers for AMD
Opteron/Athlons and nVidia CUDA-based graphics cards.
The basic procedure behind running an OpenCL program is:
1. get a list of platforms
2. choose a device on the platform that fits your needs
3. create a context for the platform and the device
4. compile a program and "kernels" written in OpenCL/C
5. create memory buffer objects.
6. execute kernels on the memory buffer objects.
7. rinse hands, repeat.
Obviously this is not very functional, but we can't get there without
a raw binding. Data Parallel computing is somewhere Haskell is
excelling; hopefully this will generate some interest in creating a
DPH binding to OpenCL's C99-based language, OpenCL/C.
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