5 Commits

Author	SHA1	Message	Date
Gael Guennebaud	5066fe8bbe	* sparse LU: add extraction of L,U,P, and Q, as well as determinant ... for both backends. * extended a bit the sparse unit tests	2008-10-20 17:03:09 +00:00
Gael Guennebaud	e1c50a3cb1	add unit tests for sparse LU and fix a couple of warnings	2008-10-20 11:37:45 +00:00
Gael Guennebaud	3a231c2349	sparse module: add support for umfpack, the sparse direct LU ... solver from suitesparse (as cholmod). It seems to be even faster than SuperLU and it was much simpler to interface ! Well, the factorization is faster, but for the solve part, SuperLU is quite faster. On the other hand the solve part represents only a fraction of the whole procedure. Moreover, I bench random matrices that does not represents real cases, and I'm not sure at all I use both libraries with their best settings !	2008-10-19 22:44:21 +00:00
Gael Guennebaud	64f7fbe3f2	sparse module: some trivial bugfixes	2008-10-19 17:07:20 +00:00
Gael Guennebaud	ecc6c43dba	sparse module: add preliminary support for direct sparse LU solver ... using SuperLU. Calling SuperLU was very painful, but it was worth it, it seems to be damn fast !	2008-10-19 15:26:28 +00:00