Parallel and Concurrent Programming in Haskell: Errata

This section lists changes and corrections to Simon Marlow's excellent book Parallel and Concurrent Programming in Haskell due to changes in the Accelerate API since the book's publication. The book is available for purchase from O'Rielly Media in electronic and paper formats, and can also be viewed online for free. The following notes are relevant for Chapter 6: GPU Programming with Accelerate.

• To run programs on the GPU, it is recommended to use the accelerate-llvm-ptx backend, rather than the (older, deprecated) accelerate-cuda backend. To use this backend, we need to use:

  import Data.Array.Accelerate.LLVM.PTX

  in place of:

  import Data.Array.Accelerate.CUDA

  Alternatively, if you do not have a CUDA capable GPU, rather than using the (very slow) interpreter backend you can use the accelerate-llvm-native backend for multicore CPUs, which was not available at the time of publication:

  import Data.Array.Accelerate.LLVM.Native

• The Accelerate API has changed in several key ways which makes it significantly easier to implement the Mandelbrot Set program. See the tutorial we have put together here for the updated instructions.