tree bc633522569e175c349f3242d2e517d10f458813
parent d010de543530001fa917501a13ba02879c8ea52f
author Sameer Agarwal <sameeragarwal@google.com> 1361148637 -0800
committer Sameer Agarwal <sameeragarwal@google.com> 1361172041 -0800

Preconditioner refactoring.

1. Added a Preconditioner interface.
2. SCHUR_JACOBI is now its own class and is independent of
SuiteSparse.

Change-Id: Id912ab19cf3736e61d1b90ddaf5bfba33e877ec4