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Copied Jacobi and SSOR preconditioners for OpenNL's BICGSTAB and Conjugate Gradient from Graphite 1.9. Uses by default Jacobi preconditioner.

This commit is contained in:
Laurent Saboret 2006-12-04 13:56:09 +00:00
parent e8a93e0957
commit 7fc52574b9
1 changed files with 2 additions and 4 deletions
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6
OpenNL/include/OpenNL/preconditioner.h
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@ -69,8 +69,7 @@ public:
void mult_upper_inverse(const FullVector<T>& x, FullVector<T>& y) const ; void mult_upper_inverse(const FullVector<T>& x, FullVector<T>& y) const ;
/** /**
* To use this function, the matrix A should be symmetric and * To use this function, the matrix A should be symmetric.
* should have been constructed with the flag store_transpose.
*/ */
void mult_lower_inverse(const FullVector<T>& x, FullVector<T>& y) const ; void mult_lower_inverse(const FullVector<T>& x, FullVector<T>& y) const ;
@ -181,8 +180,7 @@ public:
public: public:
/** /**
* The matrix A should have been constructed with * The matrix A should be symmetric.
* the flag set_transpose.
*/ */
SSOR_Preconditioner( SSOR_Preconditioner(
const SparseMatrix<T>& A, CoeffType omega = 1.0 const SparseMatrix<T>& A, CoeffType omega = 1.0