tree da73d3ef08bfdd293dc4dbd1616e602da39f97ab
parent 319ef465e220230adb8ab1a2dff43c689321c7ad
author Sameer Agarwal <sameeragarwal@google.com> 1338276477 -0700
committer Sameer Agarwal <sameeragarwal@google.com> 1338345883 -0700

Multiple sparse linear algebra backends.

1. Added support for CXSparse - SparseNormalCholesky and
   SchurComplementSolver support SuiteSparse and CXSparse now.
   I am not sure I will add suport for visibility based
   preconditioning using CXSparse. Its not a high priority.

2. New enum SparseLinearAlgebraLibraryType which allows the user
   to indicate which sparse linear algebra library should be used.

3. Updated tests for SolverImpl and system_test.

4. Build system changes to automatically detect CXSparse and
   link to it by default -- just like SuiteSparse.

5. Minor bug fixes dealing in the cmake files and VBP.

6. Changed the order of the system test.

7. Deduped the unsymmetric linear solver test.

Change-Id: I33252a103c87b722ecb7ed7b5f0ae7fd91249244