A sparse direct supernodal Cholesky (LLT) factorization and solver based on the PaStiX library. More...
#include <PaStiXSupport.h>
Public Types | |
| enum | { UpLo = _UpLo } |
| typedef PastixBase< PastixLDLT< MatrixType, _UpLo > > | Base |
| typedef Base::ColSpMatrix | ColSpMatrix |
| typedef _MatrixType | MatrixType |
 Public Types inherited from Eigen::PastixBase< PastixLDLT< _MatrixType, _UpLo > > | |
| enum | |
| typedef internal::pastix_traits< PastixLDLT< _MatrixType, _UpLo > >::MatrixType | _MatrixType |
| typedef SparseMatrix< Scalar, ColMajor > | ColSpMatrix |
| typedef _MatrixType | MatrixType |
| typedef MatrixType::RealScalar | RealScalar |
| typedef MatrixType::Scalar | Scalar |
| typedef MatrixType::StorageIndex | StorageIndex |
| typedef Matrix< Scalar, Dynamic, 1 > | Vector |
Public Member Functions | |
| void | analyzePattern (const MatrixType &matrix) |
| void | compute (const MatrixType &matrix) |
| void | factorize (const MatrixType &matrix) |
| PastixLDLT () | |
| PastixLDLT (const MatrixType &matrix) | |
| Public Member Functions inherited from Eigen::PastixBase< PastixLDLT< _MatrixType, _UpLo > > | |
| bool | _solve_impl (const MatrixBase< Rhs > &b, MatrixBase< Dest > &x) const |
| Index | cols () const |
| Array< double, DPARM_SIZE, 1 > & | dparm () |
| double & | dparm (int idxparam) |
| ComputationInfo | info () const |
| Reports whether previous computation was successful. More... | |
| Array< StorageIndex, IPARM_SIZE, 1 > & | iparm () |
| int & | iparm (int idxparam) |
| PastixBase () | |
| Index | rows () const |
| ~PastixBase () | |
| Public Member Functions inherited from Eigen::SparseSolverBase< PastixLDLT< _MatrixType, _UpLo > > | |
| void | _solve_impl (const SparseMatrixBase< Rhs > &b, SparseMatrixBase< Dest > &dest) const |
| PastixLDLT< _MatrixType, _UpLo > & | derived () |
| const PastixLDLT< _MatrixType, _UpLo > & | derived () const |
| const Solve< PastixLDLT< _MatrixType, _UpLo >, Rhs > | solve (const MatrixBase< Rhs > &b) const |
| const Solve< PastixLDLT< _MatrixType, _UpLo >, Rhs > | solve (const SparseMatrixBase< Rhs > &b) const |
| SparseSolverBase () | |
| ~SparseSolverBase () | |
Protected Member Functions | |
| void | grabMatrix (const MatrixType &matrix, ColSpMatrix &out) |
| void | init () |
| Protected Member Functions inherited from Eigen::PastixBase< PastixLDLT< _MatrixType, _UpLo > > | |
| void | analyzePattern (ColSpMatrix &mat) |
| void | clean () |
| void | compute (ColSpMatrix &mat) |
| void | factorize (ColSpMatrix &mat) |
| void | init () |
Additional Inherited Members | |
| Protected Types inherited from Eigen::PastixBase< PastixLDLT< _MatrixType, _UpLo > > | |
| typedef SparseSolverBase< PastixLDLT< _MatrixType, _UpLo > > | Base |
| Protected Attributes inherited from Eigen::PastixBase< PastixLDLT< _MatrixType, _UpLo > > | |
| int | m_analysisIsOk |
| int | m_comm |
| Array< double, DPARM_SIZE, 1 > | m_dparm |
| int | m_factorizationIsOk |
| ComputationInfo | m_info |
| int | m_initisOk |
| Matrix< StorageIndex, Dynamic, 1 > | m_invp |
| Array< int, IPARM_SIZE, 1 > | m_iparm |
| pastix_data_t * | m_pastixdata |
| Matrix< StorageIndex, Dynamic, 1 > | m_perm |
| int | m_size |
| Protected Attributes inherited from Eigen::SparseSolverBase< PastixLDLT< _MatrixType, _UpLo > > | |
| bool | m_isInitialized |
Detailed Description
template<typename _MatrixType, int _UpLo>
class Eigen::PastixLDLT< _MatrixType, _UpLo >
A sparse direct supernodal Cholesky (LLT) factorization and solver based on the PaStiX library.
This class is used to solve the linear systems A.X = B via a LDL^T supernodal Cholesky factorization available in the PaStiX library. The matrix A should be symmetric and positive definite WARNING Selfadjoint complex matrices are not supported in the current version of PaStiX The vectors or matrices X and B can be either dense or sparse
- Template Parameters
-
MatrixType the type of the sparse matrix A, it must be a SparseMatrix<> UpLo The part of the matrix to use : Lower or Upper. The default is Lower as required by PaStiX
- See also
- Sparse solver concept, class SimplicialLDLT
Definition at line 33 of file PaStiXSupport.h.
Member Typedef Documentation
◆ Base
| typedef PastixBase<PastixLDLT<MatrixType, _UpLo> > Eigen::PastixLDLT< _MatrixType, _UpLo >::Base |
Definition at line 612 of file PaStiXSupport.h.
◆ ColSpMatrix
| typedef Base::ColSpMatrix Eigen::PastixLDLT< _MatrixType, _UpLo >::ColSpMatrix |
Definition at line 613 of file PaStiXSupport.h.
◆ MatrixType
| typedef _MatrixType Eigen::PastixLDLT< _MatrixType, _UpLo >::MatrixType |
Definition at line 611 of file PaStiXSupport.h.
Member Enumeration Documentation
◆ anonymous enum
| anonymous enum |
| Enumerator | |
|---|---|
| UpLo | |
Definition at line 616 of file PaStiXSupport.h.
Constructor & Destructor Documentation
◆ PastixLDLT() [1/2]
|
inline |
Definition at line 617 of file PaStiXSupport.h.
◆ PastixLDLT() [2/2]
|
inlineexplicit |
Definition at line 622 of file PaStiXSupport.h.
Member Function Documentation
◆ analyzePattern()
|
inline |
Compute the LDL^T symbolic factorization of matrix using its sparsity pattern The result of this operation can be used with successive matrices having the same pattern as matrix
- See also
- factorize()
Definition at line 642 of file PaStiXSupport.h.
◆ compute()
|
inline |
Compute the L and D factors of the LDL^T factorization of matrix
- See also
- analyzePattern() factorize()
Definition at line 631 of file PaStiXSupport.h.
◆ factorize()
|
inline |
Compute the LDL^T supernodal numerical factorization of matrix
Definition at line 651 of file PaStiXSupport.h.
◆ grabMatrix()
|
inlineprotected |
Definition at line 667 of file PaStiXSupport.h.
◆ init()
|
inlineprotected |
Definition at line 661 of file PaStiXSupport.h.
The documentation for this class was generated from the following file: