Very interesting. If you need a motivating problem, have a look at the DCT code in libjpeg. Well ^^ why not :) I thought about trying to improve this using gcc's SIMD extensions (which I guess you'll use as the back-end of your code on that platform, right?) but quickly decided it was too complicated. SSE2 intrinsics on Intel platform and Altivec intrinsics on PPC
Phil Endecott a écrit : platform. Still have to see how to handle Visual Studio which can't handle typed vector types properly :/
(As to the "how to structure libraries?" question, I would prefer to make each independent unit a separate library in its own right, even if they are small. Bundling things up into collection-libraries will tend to hide the contents; see for example today's example of the binary constants feature, hidden inside Boost.Utility, and apparently undiscovered. I suggest that this SIMD code should be its own library, Boost.SIMD.) Was thinking about this too. But SIMD has a lot of dependencies on other small library (mainly my Memory one). What would happen if SIMD is accepted and not memory ?
-- ___________________________________________ Joel Falcou - Assistant Professor PARALL Team - LRI - Universite Paris Sud XI Tel : (+33)1 69 15 66 35