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-rw-r--r--internal/ceres/parameter_block_ordering.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/internal/ceres/parameter_block_ordering.h b/internal/ceres/parameter_block_ordering.h
index a5277a4..4675cb8 100644
--- a/internal/ceres/parameter_block_ordering.h
+++ b/internal/ceres/parameter_block_ordering.h
@@ -58,6 +58,12 @@ class ParameterBlock;
int ComputeSchurOrdering(const Program& program,
vector<ParameterBlock* >* ordering);
+// Same as above, except that ties while computing the independent set
+// ordering are resolved in favour of the order in which the parameter
+// blocks occur in the program.
+int ComputeStableSchurOrdering(const Program& program,
+ vector<ParameterBlock* >* ordering);
+
// Use an approximate independent set ordering to decompose the
// parameter blocks of a problem in a sequence of independent
// sets. The ordering covers all the non-constant parameter blocks in