Paper Details

%T Beauty And The Beast: Exploiting GPUs In Haskell
%A Alex Cole, Alistair A. McEwan, Geoff Mainland
%E Peter H. Welch, Frederick R. M. Barnes, Kevin Chalmers, Jan Bækgaard Pedersen, Adam T. Sampson
%B Communicating Process Architectures 2012
%X In this paper we compare a Haskell system that exploits a
   GPU back end using Obsidian against a number of other
   GPU/parallel processing systems. Our examples demonstrate
   two major results. Firstly they show that the Haskell
   system allows the applications programmer to exploit GPUs in
   a manner that eases the development of parallel code
   by abstracting from the hardware. Secondly we show that the
   performance results from generating the GPU code from
   Haskell are acceptably comparable to expert hand written GPU
   code in most cases; and permit very significant performance
   benefits over single and multi\-threaded implementations
   whilst maintaining ease of development. Where our results
   differ from expert hand written GPU (CUDA) code we consider
   the reasons for this and discuss possible developments that
   may mitigate these differences. We conclude with a
   discussion of a domain specific example that benefits
   directly and significantly from these results.

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