Sameer Agarwal 41c5fb1e80 Refactor suitesparse.h/cc ...

1. Generalize SuiteSparse::AnalyzeCholesky and
   SuiteSparse::BlockAnalyzeCholesky from just doing AMD to taking
   OrderingType as an argument and using that to determine whether
   AMD & Nested Dissection algorithms are used for computing the
   fill-reducing ordering or a natural ordering when computing
   the symbolic factorization.

2. Remove AnalyzeCholeskyWithNaturalOrdering.

3. Replace and generalize SuiteSparse::BlockAMDOrdering with
   SuiteSparse::BlockOrdering which also takes OrderingType as an
   argument. Same for SuiteSparse::ApproximateMinimumDegreeOrdering
   and SuiteSparse::NestedDissectionOrdering by
   SuiteSparse::Ordering.

4. Remove LinearSolver::Options::use_postordering and replace it
   with LinearSolver::Options::ordering_type.

5. Replace Preconditioner::Options::use_postordering and replace it
   with Preconditioner::Options::ordering_type.

6. Add NESDIS to OrderingType. With the above changes, the linear
   solvers can now use Nested Dissection once this information
   is piped through the nonlinear solver.

Change-Id: Ib8e93fbf34ae2981bf2ac54dcda9e25c7c213790

2022-05-19 11:05:46 -07:00

..

ceres

Refactor suitesparse.h/cc

2022-05-19 11:05:46 -07:00