[Haskell-cafe] Optimizing cellular automata evaluation (round 2)

[Jon Harrop]

On Friday 30 November 2007 00:31, Justin Bailey wrote:
> I represent the automata as an array of integers, where each bit
> represents a cell.

Mathematica uses a single arbitrary-precision integer to represent each 
generation of a 1D automaton. The rules to derive the next generation are 
compiled into arithmetic operations on the integer. The offloads all such 
work onto your big number library and, with GMP, will be as fast in Haskell 
as most other languages.

-- 
Dr Jon D Harrop, Flying Frog Consultancy Ltd.
http://www.ffconsultancy.com/products/?e