diff options
author | Christoph Hertzberg <chtz@informatik.uni-bremen.de> | 2014-12-04 22:48:53 +0100 |
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committer | Christoph Hertzberg <chtz@informatik.uni-bremen.de> | 2014-12-04 22:48:53 +0100 |
commit | e8cdbedefb1913b5a0e2f2b7d38470f081cb8d29 (patch) | |
tree | b64cb33df57f4cfcd87bf42643279629dc0900d3 /Eigen/src/IterativeLinearSolvers/IncompleteLUT.h | |
parent | 6ccf97f3e6ce39c210e225ba7aae66da15b71660 (diff) |
bug #877, bug #572: Introduce a global Index typedef. Rename Sparse*::Index to StorageIndex, make Dense*::StorageIndex an alias to DenseIndex. Overall this commit gets rid of all Index conversion warnings.
Diffstat (limited to 'Eigen/src/IterativeLinearSolvers/IncompleteLUT.h')
-rw-r--r-- | Eigen/src/IterativeLinearSolvers/IncompleteLUT.h | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/Eigen/src/IterativeLinearSolvers/IncompleteLUT.h b/Eigen/src/IterativeLinearSolvers/IncompleteLUT.h index 8ed9bdecc..c413e9e1a 100644 --- a/Eigen/src/IterativeLinearSolvers/IncompleteLUT.h +++ b/Eigen/src/IterativeLinearSolvers/IncompleteLUT.h @@ -32,7 +32,7 @@ Index QuickSplit(VectorV &row, VectorI &ind, Index ncut) using std::swap; using std::abs; Index mid; - Index n = row.size(); /* length of the vector */ + Index n = convert_index<Index>(row.size()); /* length of the vector */ Index first, last ; ncut--; /* to fit the zero-based indices */ @@ -105,7 +105,7 @@ class IncompleteLUT : public SparseSolverBase<IncompleteLUT<_Scalar> > typedef Matrix<Scalar,Dynamic,1> Vector; typedef SparseMatrix<Scalar,RowMajor> FactorType; typedef SparseMatrix<Scalar,ColMajor> PermutType; - typedef typename FactorType::Index Index; + typedef typename FactorType::StorageIndex StorageIndex; public: typedef Matrix<Scalar,Dynamic,Dynamic> MatrixType; @@ -124,9 +124,9 @@ class IncompleteLUT : public SparseSolverBase<IncompleteLUT<_Scalar> > compute(mat); } - Index rows() const { return m_lu.rows(); } + StorageIndex rows() const { return m_lu.rows(); } - Index cols() const { return m_lu.cols(); } + StorageIndex cols() const { return m_lu.cols(); } /** \brief Reports whether previous computation was successful. * @@ -189,8 +189,8 @@ protected: bool m_analysisIsOk; bool m_factorizationIsOk; ComputationInfo m_info; - PermutationMatrix<Dynamic,Dynamic,Index> m_P; // Fill-reducing permutation - PermutationMatrix<Dynamic,Dynamic,Index> m_Pinv; // Inverse permutation + PermutationMatrix<Dynamic,Dynamic,StorageIndex> m_P; // Fill-reducing permutation + PermutationMatrix<Dynamic,Dynamic,StorageIndex> m_Pinv; // Inverse permutation }; /** @@ -218,14 +218,14 @@ template<typename _MatrixType> void IncompleteLUT<Scalar>::analyzePattern(const _MatrixType& amat) { // Compute the Fill-reducing permutation - SparseMatrix<Scalar,ColMajor, Index> mat1 = amat; - SparseMatrix<Scalar,ColMajor, Index> mat2 = amat.transpose(); + SparseMatrix<Scalar,ColMajor, StorageIndex> mat1 = amat; + SparseMatrix<Scalar,ColMajor, StorageIndex> mat2 = amat.transpose(); // Symmetrize the pattern // FIXME for a matrix with nearly symmetric pattern, mat2+mat1 is the appropriate choice. // on the other hand for a really non-symmetric pattern, mat2*mat1 should be prefered... - SparseMatrix<Scalar,ColMajor, Index> AtA = mat2 + mat1; + SparseMatrix<Scalar,ColMajor, StorageIndex> AtA = mat2 + mat1; AtA.prune(keep_diag()); - internal::minimum_degree_ordering<Scalar, Index>(AtA, m_P); // Then compute the AMD ordering... + internal::minimum_degree_ordering<Scalar, StorageIndex>(AtA, m_P); // Then compute the AMD ordering... m_Pinv = m_P.inverse(); // ... and the inverse permutation @@ -241,7 +241,7 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) using std::abs; eigen_assert((amat.rows() == amat.cols()) && "The factorization should be done on a square matrix"); - Index n = amat.cols(); // Size of the matrix + StorageIndex n = amat.cols(); // Size of the matrix m_lu.resize(n,n); // Declare Working vectors and variables Vector u(n) ; // real values of the row -- maximum size is n -- @@ -250,7 +250,7 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) // Apply the fill-reducing permutation eigen_assert(m_analysisIsOk && "You must first call analyzePattern()"); - SparseMatrix<Scalar,RowMajor, Index> mat; + SparseMatrix<Scalar,RowMajor, StorageIndex> mat; mat = amat.twistedBy(m_Pinv); // Initialization @@ -259,21 +259,21 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) u.fill(0); // number of largest elements to keep in each row: - Index fill_in = static_cast<Index> (amat.nonZeros()*m_fillfactor)/n+1; + StorageIndex fill_in = static_cast<StorageIndex> (amat.nonZeros()*m_fillfactor)/n+1; if (fill_in > n) fill_in = n; // number of largest nonzero elements to keep in the L and the U part of the current row: - Index nnzL = fill_in/2; - Index nnzU = nnzL; + StorageIndex nnzL = fill_in/2; + StorageIndex nnzU = nnzL; m_lu.reserve(n * (nnzL + nnzU + 1)); // global loop over the rows of the sparse matrix - for (Index ii = 0; ii < n; ii++) + for (StorageIndex ii = 0; ii < n; ii++) { // 1 - copy the lower and the upper part of the row i of mat in the working vector u - Index sizeu = 1; // number of nonzero elements in the upper part of the current row - Index sizel = 0; // number of nonzero elements in the lower part of the current row + StorageIndex sizeu = 1; // number of nonzero elements in the upper part of the current row + StorageIndex sizel = 0; // number of nonzero elements in the lower part of the current row ju(ii) = ii; u(ii) = 0; jr(ii) = ii; @@ -282,7 +282,7 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) typename FactorType::InnerIterator j_it(mat, ii); // Iterate through the current row ii for (; j_it; ++j_it) { - Index k = j_it.index(); + StorageIndex k = j_it.index(); if (k < ii) { // copy the lower part @@ -298,7 +298,7 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) else { // copy the upper part - Index jpos = ii + sizeu; + StorageIndex jpos = ii + sizeu; ju(jpos) = k; u(jpos) = j_it.value(); jr(k) = jpos; @@ -317,19 +317,19 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) rownorm = sqrt(rownorm); // 3 - eliminate the previous nonzero rows - Index jj = 0; - Index len = 0; + StorageIndex jj = 0; + StorageIndex len = 0; while (jj < sizel) { // In order to eliminate in the correct order, // we must select first the smallest column index among ju(jj:sizel) - Index k; - Index minrow = ju.segment(jj,sizel-jj).minCoeff(&k); // k is relative to the segment + StorageIndex k; + StorageIndex minrow = ju.segment(jj,sizel-jj).minCoeff(&k); // k is relative to the segment k += jj; if (minrow != ju(jj)) { // swap the two locations - Index j = ju(jj); + StorageIndex j = ju(jj); swap(ju(jj), ju(k)); jr(minrow) = jj; jr(j) = k; swap(u(jj), u(k)); @@ -355,11 +355,11 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) for (; ki_it; ++ki_it) { Scalar prod = fact * ki_it.value(); - Index j = ki_it.index(); - Index jpos = jr(j); + StorageIndex j = ki_it.index(); + StorageIndex jpos = jr(j); if (jpos == -1) // fill-in element { - Index newpos; + StorageIndex newpos; if (j >= ii) // dealing with the upper part { newpos = ii + sizeu; @@ -388,7 +388,7 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) } // end of the elimination on the row ii // reset the upper part of the pointer jr to zero - for(Index k = 0; k <sizeu; k++) jr(ju(ii+k)) = -1; + for(StorageIndex k = 0; k <sizeu; k++) jr(ju(ii+k)) = -1; // 4 - partially sort and insert the elements in the m_lu matrix @@ -401,7 +401,7 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) // store the largest m_fill elements of the L part m_lu.startVec(ii); - for(Index k = 0; k < len; k++) + for(StorageIndex k = 0; k < len; k++) m_lu.insertBackByOuterInnerUnordered(ii,ju(k)) = u(k); // store the diagonal element @@ -413,7 +413,7 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) // sort the U-part of the row // apply the dropping rule first len = 0; - for(Index k = 1; k < sizeu; k++) + for(StorageIndex k = 1; k < sizeu; k++) { if(abs(u(ii+k)) > m_droptol * rownorm ) { @@ -429,7 +429,7 @@ void IncompleteLUT<Scalar>::factorize(const _MatrixType& amat) internal::QuickSplit(uu, juu, len); // store the largest elements of the U part - for(Index k = ii + 1; k < ii + len; k++) + for(StorageIndex k = ii + 1; k < ii + len; k++) m_lu.insertBackByOuterInnerUnordered(ii,ju(k)) = u(k); } |