More pre-ordering support.
1. CX_SPARSE supports pre-ordering of the jacobian.
2. Add support for constrained approximate minimum degree ordering
for SuiteSparse versions >= 4.2.0
3. Using 2, support for pre-ordering for SPARSE_SCHUR when used
with SUITE_SPARSE.
4. Using 2, support for user orderings in SPARSE_NORMAL_CHOLESKY.
5. Minor cleanups in documentation and code all around.
6. Test update and refactoring.
Change-Id: Ibfe3ac95d59d54ab14d1d60a07f767688070f29f
diff --git a/internal/ceres/suitesparse.cc b/internal/ceres/suitesparse.cc
index fe2edd3..57d12a1 100644
--- a/internal/ceres/suitesparse.cc
+++ b/internal/ceres/suitesparse.cc
@@ -323,6 +323,21 @@
cholmod_amd(matrix, NULL, 0, ordering, &cc_);
}
+void SuiteSparse::ConstrainedApproximateMinimumDegreeOrdering(
+ cholmod_sparse* matrix,
+ int* constraints,
+ int* ordering) {
+#ifndef CERES_NO_CAMD
+ cholmod_camd(matrix, NULL, 0, constraints, ordering, &cc_);
+#else
+ LOG(FATAL) << "Congratulations you have found a bug in Ceres."
+ << "Ceres Solver was compiled with SuiteSparse "
+ << "version 4.1.0 or less. Calling this function "
+ << "in that case is a bug. Please contact the"
+ << "the Ceres Solver developers".
+#endif
+}
+
} // namespace internal
} // namespace ceres
