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Hi List, Here are some quickies: * See here the new wiki that will eventually become Eigen's website (of course doxygen will still be used for the apidocs): http://eigen.tuxfamily.org/wiki/ For now it's empty but you can already register an account. * Related to this, I wonder, should we have a logo/mascot? See the blank area in top-left corner of the wiki, it's the area where mediawiki wants to display a logo. Do you have any good idea of a mascot? It's not necessary to have one, but if we find a good one it's always funny. Let me state my ideas: -- I prefer a real mascot (as in "furry") over an abstract logo. -- since Eigen does abstract math things, it's all the funnier to have a silly animal mascot. -- example of good mascots IMHO: Tux GNU The OpenSSH spiky fish libcaca -- what animal could we use? none at all, mascots are lame? (don't hesitate to tell) a shadok (too French-specific? Copyright issues?) a ghost (represents immateriality of math?) a pig (no reason whatsoever but it's funny with flappy ears. one reason might be that it will eat all you throw at it, representing eigen's aim to be all-purpose) ...add your idea! * development has been ongoing at warp speed with Gael and me; however we're now making a little pause so alpha5 will have to wait a bit. Among the improvements: -- we (mostly Gael) added to Core virtually all the features that were originally planned for the Array module. The rationale is that they're very useful to implement all sorts of algorithms. -- we now have rather firm plans on hot topics: vectorization (Gael has some proof-of-concept code but the full solution relies on big changes that I still have to make), parallelization (Gael alrady committed proof-of-concept code using OpenMP, see EvalOMP.h), cache-friendliness (again Gael added a cache-friendly path in Product.h), but we also now know that for really big matrices the only good solution is to let BLAS/LAPACK be used as a backend for heavy operations. Since Eigen's expression templates have far more expressive power than BLAS it's impossible to use BLAS as a backend for _all_ operations, but what is possible is to use BLAS/LAPACK for _certain_ _common_ heavy operations, such as matrix product, inversion, LU, QR, etc. -- Lots of improvements in the architecture, so the total number of LOC didn't increase that much despite the additions, and we support GCC 3.3 to 4.3 as well as ICC. * In some time we'll be giving an interview on Eigen on a developer's news website, so stay tuned :) Cheers, Benoit
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