I've somehow missed much of this discussion, which has got a little confused. I'll repeat some key facts here:-
- MTJ depends on netlib-java - I'm the maintainer of netlib-java - netlib-java depends on PURE JAVA code, generated by F2J from netlib.org BLAS/LAPACK (and ARPACK). Keith Seymour (author of f2j) deserves all the praise for that magnificent task! The necessary jar is distributed with netlib-java. - BLAS/LAPACK are industry standard APIs. - netlib-java is technically a "translation" of netlib.org's BLAS/LAPACK/ARPACK API, so is therefore BSD licensed - netlib-java can be *optionally* configured at runtime to use a native library instead of the Java implementation. - the java implementation is pretty damn fast and will be more than adequate for most users. However, it will *never* be as fast as native code running on specialist hardware (no matter how much the JVM improves). Being the maintainer of netlib-java, I'd be more than happy to re-license all the bits that aren't technically "translations" of netlib.org, for inclusion in commons-math (in fact, it makes sense to do so). But you'd still need to depend on the f2j translated implementation. They are BSD license. Hell, it makes a *lot* of sense for commons-math to provide the BLAS/LAPACK API... they are industry standards after all, and all reference implementations for linear algebra algorithms make use of them. Luc Maisonobe wrote: > > I have an additional reason for avoiding native libraries. Pure Java can > be processed by external tools for either inspection (think findbugs, > cobertura, traceability, auditing) or modification (think Nabla!). The > Nabla case is especially important to me, but I am aware this is a > corner-case. > -- View this message in context: http://www.nabble.com/commons-math%2C-matrix-toolkits-java-and-consolidation-tp23537813p23574535.html Sent from the Commons - Dev mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org
