SparseCholesky is an interface to sparse cholesky factorization
routines across sparse linear algebra libraries. Each sparse
linear algebra library is responsible for implementing its own
instance of this interface.
As a result the various places - SparseNormalCholeskySolver,
SparseSchurComplementSolver and VisibilityBasedPreconditioner
are significantly simplified.
Change-Id: I8b465705eae83bba9e1adfffcc741a05c70faf2e
SolveLowerTriangularInPlace
SolveLowerTriangularTransposeInPlace
were unused functions which can be removed.
Change-Id: I0fd29c1efae2a0a74666f6e3541473bebc22ae82
This code was currently buried under a bool inside SparseNormalCholeskySolver.
Pulling this out in its own solver makes the code simpler more readable
and more performant in the case of SuiteSparse.
Change-Id: I72379ca9ca162abbb83c12f7ee8ff92bc71e772c
Sameer Agarwal