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add support for solving with sparse right hand side

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Desire NUENTSA
2013-01-25 18:17:17 +01:00
parent 7282a45a0a
commit 81d4bfa8d9
8 changed files with 50 additions and 91 deletions
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21
Eigen/src/UmfPackSupport/UmfPackSupport.h
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@@ -215,14 +215,14 @@ class UmfPackLU : internal::noncopyable
*
* \sa compute()
*/
// template<typename Rhs>
// inline const internal::sparse_solve_retval<UmfPAckLU, Rhs> solve(const SparseMatrixBase<Rhs>& b) const
// {
// eigen_assert(m_isInitialized && "UmfPAckLU is not initialized.");
// eigen_assert(rows()==b.rows()
// && "UmfPAckLU::solve(): invalid number of rows of the right hand side matrix b");
// return internal::sparse_solve_retval<UmfPAckLU, Rhs>(*this, b.derived());
// }
template<typename Rhs>
inline const internal::sparse_solve_retval<UmfPackLU, Rhs> solve(const SparseMatrixBase<Rhs>& b) const
{
eigen_assert(m_isInitialized && "UmfPackLU is not initialized.");
eigen_assert(rows()==b.rows()
&& "UmfPackLU::solve(): invalid number of rows of the right hand side matrix b");
return internal::sparse_solve_retval<UmfPackLU, Rhs>(*this, b.derived());
}
/** Performs a symbolic decomposition on the sparcity of \a matrix.
*
@@ -381,7 +381,8 @@ bool UmfPackLU<MatrixType>::_solve(const MatrixBase<BDerived> &b, MatrixBase<XDe
const int rhsCols = b.cols();
eigen_assert((BDerived::Flags&RowMajorBit)==0 && "UmfPackLU backend does not support non col-major rhs yet");
eigen_assert((XDerived::Flags&RowMajorBit)==0 && "UmfPackLU backend does not support non col-major result yet");
eigen_assert(b.derived().data() != x.derived().data() && " Umfpack does not support inplace solve");
int errorCode;
for (int j=0; j<rhsCols; ++j)
{
@@ -420,7 +421,7 @@ struct sparse_solve_retval<UmfPackLU<_MatrixType>, Rhs>
template<typename Dest> void evalTo(Dest& dst) const
{
dec()._solve(rhs(),dst);
this->defaultEvalTo(dst);
}
};