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fix another .stride() issue in Cholmod support

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Gael Guennebaud 2009-09-07 11:15:38 +02:00
parent 61fe2b6a56
commit 225ec02b06
1 changed files with 11 additions and 4 deletions
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15
Eigen/src/Sparse/CholmodSupport.h
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@ -99,7 +99,7 @@ cholmod_dense ei_cholmod_map_eigen_to_dense(MatrixBase<Derived>& mat)
res.nrow = mat.rows();
res.ncol = mat.cols();
res.nzmax = res.nrow * res.ncol;
res.d = mat.derived().stride();
res.d = Derived::IsVectorAtCompileTime ? mat.derived().size() : mat.derived().stride();
res.x = mat.derived().data();
res.z = 0;
@ -157,7 +157,7 @@ class SparseLLT<MatrixType,Cholmod> : public SparseLLT<MatrixType>
inline const typename Base::CholMatrixType& matrixL(void) const;
template<typename Derived>
void solveInPlace(MatrixBase<Derived> &b) const;
bool solveInPlace(MatrixBase<Derived> &b) const;
void compute(const MatrixType& matrix);
@ -216,7 +216,7 @@ SparseLLT<MatrixType,Cholmod>::matrixL() const
template<typename MatrixType>
template<typename Derived>
void SparseLLT<MatrixType,Cholmod>::solveInPlace(MatrixBase<Derived> &b) const
bool SparseLLT<MatrixType,Cholmod>::solveInPlace(MatrixBase<Derived> &b) const
{
const int size = m_cholmodFactor->n;
ei_assert(size==b.rows());
@ -228,9 +228,16 @@ void SparseLLT<MatrixType,Cholmod>::solveInPlace(MatrixBase<Derived> &b) const
// as long as our own triangular sparse solver is not fully optimal,
// let's use CHOLMOD's one:
cholmod_dense cdb = ei_cholmod_map_eigen_to_dense(b);
cholmod_dense* x = cholmod_solve(CHOLMOD_LDLt, m_cholmodFactor, &cdb, &m_cholmod);
//cholmod_dense* x = cholmod_solve(CHOLMOD_LDLt, m_cholmodFactor, &cdb, &m_cholmod);
cholmod_dense* x = cholmod_solve(CHOLMOD_A, m_cholmodFactor, &cdb, &m_cholmod);
if(!x)
{
std::cerr << "Eigen: cholmod_solve failed\n";
return false;
}
b = Matrix<typename Base::Scalar,Dynamic,1>::Map(reinterpret_cast<typename Base::Scalar*>(x->x),b.rows());
cholmod_free_dense(&x, &m_cholmod);
return true;
}
#endif // EIGEN_CHOLMODSUPPORT_H