@hackage repa1.1.0.0

High performance, regular, shape polymorphic parallel arrays.

NOTE: You must use the GHC head branch > 6.13.20100309 to get decent performance. Repa provides high performance, regular, multi-dimensional, shape polymorphic parallel arrays. All numeric data is stored unboxed. Functions written with the Repa combinators are automatically parallel provided you supply +RTS -Nwhatever on the command line when running the program.