On Tuesday 13 November 2007 16:03, Laurent Deniau wrote:
OCaml was used to write a meta-program which applies heuristics to minimize the runtime of the critical C code (i.e. the butterflies). This has nothing to do with FFT computation
No. The sole purpose of the OCaml code is to symbolically simplify the FFT computations and generate C code implementing the best results.
FFTW doesn't need any OCaml compiler or lib to be compiled and installed.
No. FFTW contains around 13,000 lines of OCaml source code and you need the OCaml compiler to compile that. If you don't believe me, perhaps you will believe Steven G. Johnson (one of the authors of FFTW) when someone tried to tell him that he hadn't written his software in OCaml: http://groups.google.co.uk/group/fa.caml/msg/cfd08423c22ccff5 That OCaml code has millions of industrial users worldwide and is one of the most widely used pieces of software written in a statically typed functional programming language. -- Dr Jon D Harrop, Flying Frog Consultancy Ltd. http://www.ffconsultancy.com/products/?e