Safe Haskell	None
Language	Haskell98

Data.Array.Repa.Repr.Cursored

Synopsis

Documentation

data C Source

Cursored Arrays. These are produced by Repa's stencil functions, and help the fusion framework to share index compuations between array elements.

The basic idea is described in ``Efficient Parallel Stencil Convolution'', Ben Lippmeier and Gabriele Keller, Haskell 2011 -- though the underlying array representation has changed since this paper was published.

Instances

Source C a Source	Compute elements of a cursored array.
Elt e => LoadRange C DIM2 e Source	Compute a range of elements in a rank-2 array.
Elt e => Load C DIM2 e Source	Compute all elements in an rank-2 array.
Structured C a b Source
type TR C = C Source
data Array C sh a where ACursored :: { cursoredExtent :: !sh makeCursor :: sh -> cursor shiftCursor :: sh -> cursor -> cursor loadCursor :: cursor -> a } -> Array C sh a Source

makeCursored Source

Arguments

:: sh
-> (sh -> cursor)	Create a cursor for an index.
-> (sh -> cursor -> cursor)	Shift a cursor by an offset.
-> (cursor -> e)	Compute the element at the cursor.
-> Array C sh e

Define a new cursored array.