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Fix sparseLU solver when destination has a non-unit stride.

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Antonio Sánchez
2022-11-29 19:37:03 +00:00
committed by Rasmus Munk Larsen
parent 551eebc8ca
commit ab2b26fbc2
3 changed files with 14 additions and 10 deletions
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7
Eigen/src/SparseLU/SparseLU_SupernodalMatrix.h
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@@ -276,9 +276,8 @@ void MappedSuperNodalMatrix<Scalar,Index_>::solveInPlace( MatrixBase<Dest>&X) co
// Triangular solve
Map<const Matrix<Scalar,Dynamic,Dynamic, ColMajor>, 0, OuterStride<> > A( &(Lval[luptr]), nsupc, nsupc, OuterStride<>(lda) );
Map< Matrix<Scalar,Dynamic,Dest::ColsAtCompileTime, ColMajor>, 0, OuterStride<> > U (&(X(fsupc,0)), nsupc, nrhs, OuterStride<>(n) );
U = A.template triangularView<UnitLower>().solve(U);
typename Dest::RowsBlockXpr U = X.derived().middleRows(fsupc, nsupc);
U = A.template triangularView<UnitLower>().solve(U);
// Matrix-vector product
new (&A) Map<const Matrix<Scalar,Dynamic,Dynamic, ColMajor>, 0, OuterStride<> > ( &(Lval[luptr+nsupc]), nrow, nsupc, OuterStride<>(lda) );
work.topRows(nrow).noalias() = A * U;
@@ -351,7 +350,7 @@ void MappedSuperNodalMatrix<Scalar,Index_>::solveTransposedInPlace( MatrixBase<D
// Matrix-vector product with transposed submatrix
Map<const Matrix<Scalar,Dynamic,Dynamic, ColMajor>, 0, OuterStride<> > A( &(Lval[luptr+nsupc]), nrow, nsupc, OuterStride<>(lda) );
Map< Matrix<Scalar,Dynamic,Dest::ColsAtCompileTime, ColMajor>, 0, OuterStride<> > U (&(X(fsupc,0)), nsupc, nrhs, OuterStride<>(n) );
typename Dest::RowsBlockXpr U = X.derived().middleRows(fsupc, nsupc);
if(Conjugate)
U = U - A.adjoint() * work.topRows(nrow);
else