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https://gitlab.com/libeigen/eigen.git
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modify the unit tests of sparse linear solvers to enable tests on real matrices, from MatrixMarket for instance
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@@ -136,10 +136,10 @@ namespace internal
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// WARNING It is assumed here that successive calls to this routine are done
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// with matrices having the same pattern.
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template <typename MatrixType>
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void EigenSymmetrizeMatrixGraph (const MatrixType& In, MatrixType& Out, MatrixType& StrMatTrans)
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void EigenSymmetrizeMatrixGraph (const MatrixType& In, MatrixType& Out, MatrixType& StrMatTrans, bool& hasTranspose)
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{
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eigen_assert(In.cols()==In.rows() && " Can only symmetrize the graph of a square matrix");
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if (StrMatTrans.outerSize() == 0)
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if (!hasTranspose)
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{ //First call to this routine, need to compute the structural pattern of In^T
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StrMatTrans = In.transpose();
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// Set the elements of the matrix to zero
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@@ -148,6 +148,7 @@ namespace internal
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for (typename MatrixType::InnerIterator it(StrMatTrans, i); it; ++it)
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it.valueRef() = 0.0;
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}
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hasTranspose = true;
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}
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Out = (StrMatTrans + In).eval();
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}
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@@ -172,6 +173,7 @@ class PastixBase
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PastixBase():m_initisOk(false),m_analysisIsOk(false),m_factorizationIsOk(false),m_isInitialized(false)
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{
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m_pastixdata = 0;
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m_hasTranspose = false;
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PastixInit();
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}
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@@ -314,7 +316,6 @@ class PastixBase
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m_iparm(IPARM_END_TASK) = API_TASK_CLEAN;
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internal::eigen_pastix(&m_pastixdata, MPI_COMM_WORLD, 0, m_mat_null.outerIndexPtr(), m_mat_null.innerIndexPtr(),
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m_mat_null.valuePtr(), m_perm.data(), m_invp.data(), m_vec_null.data(), 1, m_iparm.data(), m_dparm.data());
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}
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Derived& compute (MatrixType& mat);
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@@ -328,6 +329,7 @@ class PastixBase
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mutable SparseMatrix<Scalar, ColMajor> m_mat_null; // An input null matrix
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mutable Matrix<Scalar, Dynamic,1> m_vec_null; // An input null vector
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mutable SparseMatrix<Scalar, ColMajor> m_StrMatTrans; // The transpose pattern of the input matrix
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mutable bool m_hasTranspose; // The transpose of the current matrix has already been computed
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mutable int m_comm; // The MPI communicator identifier
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mutable Matrix<Index,IPARM_SIZE,1> m_iparm; // integer vector for the input parameters
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mutable Matrix<double,DPARM_SIZE,1> m_dparm; // Scalar vector for the input parameters
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@@ -357,6 +359,7 @@ void PastixBase<Derived>::PastixInit()
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PastixDestroy();
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m_pastixdata = 0;
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m_iparm(IPARM_MODIFY_PARAMETER) = API_YES;
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m_hasTranspose = false;
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}
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m_iparm(IPARM_START_TASK) = API_TASK_INIT;
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@@ -537,7 +540,7 @@ class PastixLU : public PastixBase< PastixLU<_MatrixType> >
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temp = matrix;
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else
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{
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internal::EigenSymmetrizeMatrixGraph<PaStiXType>(matrix, temp, m_StrMatTrans);
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internal::EigenSymmetrizeMatrixGraph<PaStiXType>(matrix, temp, m_StrMatTrans, m_hasTranspose);
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}
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m_iparm[IPARM_SYM] = API_SYM_NO;
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m_iparm(IPARM_FACTORIZATION) = API_FACT_LU;
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@@ -559,7 +562,7 @@ class PastixLU : public PastixBase< PastixLU<_MatrixType> >
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temp = matrix;
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else
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{
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internal::EigenSymmetrizeMatrixGraph<PaStiXType>(matrix, temp, m_StrMatTrans);
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internal::EigenSymmetrizeMatrixGraph<PaStiXType>(matrix, temp, m_StrMatTrans,m_hasTranspose);
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}
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m_iparm(IPARM_SYM) = API_SYM_NO;
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@@ -581,7 +584,7 @@ class PastixLU : public PastixBase< PastixLU<_MatrixType> >
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temp = matrix;
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else
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{
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internal::EigenSymmetrizeMatrixGraph<PaStiXType>(matrix, temp, m_StrMatTrans);
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internal::EigenSymmetrizeMatrixGraph<PaStiXType>(matrix, temp, m_StrMatTrans,m_hasTranspose);
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}
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m_iparm(IPARM_SYM) = API_SYM_NO;
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m_iparm(IPARM_FACTORIZATION) = API_FACT_LU;
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@@ -591,6 +594,7 @@ class PastixLU : public PastixBase< PastixLU<_MatrixType> >
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using Base::m_iparm;
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using Base::m_dparm;
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using Base::m_StrMatTrans;
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using Base::m_hasTranspose;
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};
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/** \ingroup PaStiXSupport_Module
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@@ -124,9 +124,11 @@ inline int umfpack_get_determinant(std::complex<double> *Mx, double *Ex, void *N
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* \brief A sparse LU factorization and solver based on UmfPack
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*
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* This class allows to solve for A.X = B sparse linear problems via a LU factorization
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* using the UmfPack library. The sparse matrix A must be column-major, squared and full rank.
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* using the UmfPack library. The sparse matrix A must be in a compressed column-major form, squared and full rank.
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* The vectors or matrices X and B can be either dense or sparse.
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*
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* WARNING The Eigen column-major SparseMatrix is not always in compressed form.
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* The user should call makeCompressed() to get a matrix in CSC suitable for UMFPACK
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* \tparam _MatrixType the type of the sparse matrix A, it must be a SparseMatrix<>
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*
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* \sa \ref TutorialSparseDirectSolvers
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@@ -198,7 +200,9 @@ class UmfPackLU
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return m_q;
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}
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/** Computes the sparse Cholesky decomposition of \a matrix */
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/** Computes the sparse Cholesky decomposition of \a matrix
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* Note that the matrix should be in compressed format. Please, use makeCompressed() to get it !!
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*/
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void compute(const MatrixType& matrix)
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{
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analyzePattern(matrix);
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