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sparse module: new API proposal for triangular solves and experimental

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solver support with a sparse matrix as the rhs.
This commit is contained in:
Gael Guennebaud
2009-04-05 16:30:10 +00:00
parent 5a628567b0
commit 5b1d0cebc5
13 changed files with 335 additions and 64 deletions
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8
Eigen/src/Sparse/SparseLDLT.h
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@@ -79,7 +79,7 @@ class SparseLDLT
protected:
typedef typename MatrixType::Scalar Scalar;
typedef typename NumTraits<typename MatrixType::Scalar>::Real RealScalar;
typedef SparseMatrix<Scalar,LowerTriangular|UnitDiagBit> CholMatrixType;
typedef SparseMatrix<Scalar> CholMatrixType;
typedef Matrix<Scalar,MatrixType::ColsAtCompileTime,1> VectorType;
enum {
@@ -137,7 +137,7 @@ class SparseLDLT
* overloads the MemoryEfficient flags)
*
* \sa flags() */
void settagss(int f) { m_flags = f; }
void settags(int f) { m_flags = f; }
/** \returns the current flags */
int flags() const { return m_flags; }
@@ -333,12 +333,12 @@ bool SparseLDLT<MatrixType, Backend>::solveInPlace(MatrixBase<Derived> &b) const
return false;
if (m_matrix.nonZeros()>0) // otherwise L==I
m_matrix.solveTriangularInPlace(b);
m_matrix.template triangular<LowerTriangular|UnitDiagBit>().solveInPlace(b);
b = b.cwise() / m_diag;
// FIXME should be .adjoint() but it fails to compile...
if (m_matrix.nonZeros()>0) // otherwise L==I
m_matrix.transpose().solveTriangularInPlace(b);
m_matrix.transpose().template triangular<UpperTriangular|UnitDiagBit>().solveInPlace(b);
return true;
}