chrono::ChSolverMINRES Class Reference
Description
MINRES iterative solver.
Solves Ax=b for symmetric sparse matrix A, using a conjugate-gradient type method based on Lanczos tridiagonalization.
See ChIterativeSolverLS for supported solver settings and paramters.
#include <ChIterativeSolverLS.h>
Inheritance diagram for chrono::ChSolverMINRES:
Collaboration diagram for chrono::ChSolverMINRES:
Public Member Functions | |
| virtual Type | GetType () const override |
| Return type of the solver. | |
| virtual int | GetIterations () const override |
| Return the number of iterations performed during the last solve. | |
| virtual double | GetError () const override |
| Return the tolerance error reached during the last solve. | |
 Public Member Functions inherited from chrono::ChIterativeSolverLS | |
| virtual bool | Setup (ChSystemDescriptor &sysd) override |
| Perform the solver setup operations. More... | |
| virtual double | Solve (ChSystemDescriptor &sysd) override |
| Performs the solution of the problem. More... | |
| Public Member Functions inherited from chrono::ChIterativeSolver | |
| virtual void | SetMaxIterations (int max_iterations) |
| Set the maximum number of iterations. | |
| void | SetTolerance (double tolerance) |
| Set the tolerance threshold used by the stopping criteria. | |
| void | EnableDiagonalPreconditioner (bool val) |
| Enable/disable use of a simple diagonal preconditioner (default: true). More... | |
| void | EnableWarmStart (bool val) |
| Enable/disable warm starting by providing an initial guess (default: false). More... | |
| int | GetMaxIterations () const |
| Get the current maximum number of iterations. | |
| double | GetTolerance () const |
| Get the current tolerance value. | |
| Public Member Functions inherited from chrono::ChSolver | |
| virtual ChDirectSolverLS * | AsDirect () |
| Downcast to ChDirectSolver. | |
| void | SetVerbose (bool mv) |
| Set verbose output from solver. | |
| void | EnableWrite (bool val, const std::string &frame, const std::string &out_dir=".") |
| Enable/disable debug output of matrix, RHS, and solution vector. | |
| virtual void | ArchiveOut (ChArchiveOut &archive_out) |
| Method to allow serialization of transient data to archives. | |
| virtual void | ArchiveIn (ChArchiveIn &archive_in) |
| Method to allow de-serialization of transient data from archives. | |
Additional Inherited Members | |
| Public Types inherited from chrono::ChSolver | |
| enum | Type { Type::PSOR, Type::PSSOR, Type::PJACOBI, Type::PMINRES, Type::BARZILAIBORWEIN, Type::APGD, Type::ADMM, Type::SPARSE_LU, Type::SPARSE_QR, Type::PARDISO_MKL, Type::MUMPS, Type::GMRES, Type::MINRES, Type::BICGSTAB, CUSTOM } |
| Available types of solvers. More... | |
| Protected Member Functions inherited from chrono::ChIterativeSolverLS | |
| virtual bool | IsIterative () const override |
| Return true if iterative solver. | |
| virtual bool | IsDirect () const override |
| Return true if direct solver. | |
| virtual ChIterativeSolver * | AsIterative () override |
| Downcast to ChIterativeSolver. | |
| virtual bool | SolveRequiresMatrix () const override final |
| Indicate whether or not the Solve() phase requires an up-to-date problem matrix. | |
| Protected Member Functions inherited from chrono::ChIterativeSolver | |
| ChIterativeSolver (int max_iterations, double tolerance, bool use_precond, bool warm_start) | |
| void | WriteMatrices (ChSystemDescriptor &sysd, bool one_indexed=true) |
| double | CheckSolution (ChSystemDescriptor &sysd, const ChVectorDynamic<> &x) |
| Protected Attributes inherited from chrono::ChIterativeSolverLS | |
| ChMatrixSPMV * | m_spmv |
| matrix-like wrapper for SPMV operations | |
| ChVectorDynamic< double > | m_sol |
| solution vector | |
| ChVectorDynamic< double > | m_rhs |
| right-hand side vector | |
| ChVectorDynamic< double > | m_invdiag |
| inverse diagonal entries (for preconditioning) | |
| ChVectorDynamic< double > | m_initguess |
| initial guess (for warm start) | |
| Protected Attributes inherited from chrono::ChIterativeSolver | |
| bool | m_use_precond |
| use diagonal preconditioning? | |
| bool | m_warm_start |
| use initial guesss? | |
| int | m_max_iterations |
| maximum number of iterations | |
| double | m_tolerance |
| tolerance threshold in stopping criteria | |
| Protected Attributes inherited from chrono::ChSolver | |
| bool | verbose |
| bool | write_matrix |
| std::string | output_dir |
| std::string | frame_id |
The documentation for this class was generated from the following files:
- /builds/uwsbel/chrono/src/chrono/solver/ChIterativeSolverLS.h
- /builds/uwsbel/chrono/src/chrono/solver/ChIterativeSolverLS.cpp
