Commit 39c4d613 authored by Alvarez, Gonzalo's avatar Alvarez, Gonzalo
Browse files

LanczosVectors: swap, don't copy

parent a12147c6

src/LanczosCore.h

+3 −3
Original line number Diff line number Diff line
@@ -268,13 +268,13 @@ public: 


	SizeType steps() const {return steps_; }



	const DenseMatrixType& lanczosVectors() const

	void lanczosVectorsSwap(DenseMatrixType& V)

	{

		const DenseMatrixType* ptr = lanczosVectors_.data();

		DenseMatrixType* ptr = lanczosVectors_.data();

		if (!ptr)

			throw RuntimeError("LanczosCore::lanczosVectors() called but no data stored\n");



		return *(ptr);

		ptr->swap(V);

	}



	const MatrixType& matrix() const { return mat_; }

src/LanczosSolver.h

+2 −2
Original line number Diff line number Diff line
@@ -91,9 +91,9 @@ public: 
		return ls_.decomposition(initVector, ab, 1);

	}



	const typename LanczosCoreType::DenseMatrixType& lanczosVectors() const

	void lanczosVectorsSwap(typename LanczosCoreType::DenseMatrixType& V)

	{

		return ls_.lanczosVectors();

		ls_.lanczosVectorsSwap(V);

	}



	SizeType steps() const {return ls_.steps(); }