Concrete class encapsulating some dune-istl linear solvers. More...
#include <LinearSolverIstl.hpp>
Public Member Functions | |
| LinearSolverIstl () | |
| LinearSolverIstl (const ParameterGroup ¶m) | |
| virtual | ~LinearSolverIstl () |
| Destructor. More... | |
| virtual LinearSolverReport | solve (const int size, const int nonzeros, const int *ia, const int *ja, const double *sa, const double *rhs, double *solution, const boost::any &comm=boost::any()) const |
| virtual void | setTolerance (const double tol) |
| virtual double | getTolerance () const |
| LinearSolverReport | solve (const CSRMatrix *A, const double *rhs, double *solution) const |
| virtual LinearSolverReport | solve (const int size, const int nonzeros, const int *ia, const int *ja, const double *sa, const double *rhs, double *solution, const boost::any &add=boost::any()) const=0 |
Detailed Description
Concrete class encapsulating some dune-istl linear solvers.
Constructor & Destructor Documentation
◆ LinearSolverIstl() [1/2]
| Opm::LinearSolverIstl::LinearSolverIstl | ( | ) |
Default constructor. All parameters controlling the solver are defaulted: linsolver_residual_tolerance 1e-8 linsolver_verbosity 0 linsolver_type 1 ( = CG_AMG), alternatives are: CG_ILU0 = 0, CG_AMG = 1, BiCGStab_ILU0 = 2 FastAMG=3, KAMG=4 }; linsolver_save_system false linsolver_save_filename <empty string> linsolver_max_iterations 0 (unlimited=5000) linsolver_residual_tolerance 1e-8 linsolver_smooth_steps 2 linsolver_prolongate_factor 1.6 linsolver_verbosity 0
◆ LinearSolverIstl() [2/2]
| Opm::LinearSolverIstl::LinearSolverIstl | ( | const ParameterGroup & | param | ) |
Construct from parameters Accepted parameters are, with defaults, listed in the default constructor.
◆ ~LinearSolverIstl()
|
virtual |
Destructor.
Member Function Documentation
◆ getTolerance()
|
virtual |
Get tolerance ofthe linear solver.
- Parameters
-
[out] tolerance value
Implements Opm::LinearSolverInterface.
◆ setTolerance()
|
virtual |
Set tolerance for the residual in dune istl linear solver.
- Parameters
-
[in] tol tolerance value
Implements Opm::LinearSolverInterface.
◆ solve() [1/3]
| LinearSolverReport Opm::LinearSolverInterface::solve | ( | const CSRMatrix * | A, |
| const double * | rhs, | ||
| double * | solution | ||
| ) | const |
Solve a linear system, with a matrix given in compressed sparse row format.
- Parameters
-
[in] A matrix in CSR format [in] rhs array of length A->m containing the right hand side [in,out] solution array of length A->m to which the solution will be written, may also be used as initial guess by iterative solvers. Note: this method is a convenience method that calls the virtual solve() method.
◆ solve() [2/3]
|
virtual |
Solve a linear system, with a matrix given in compressed sparse row format.
- Parameters
-
[in] size # of rows in matrix [in] nonzeros # of nonzeros elements in matrix [in] ia array of length (size + 1) containing start and end indices for each row [in] ja array of length nonzeros containing column numbers for the nonzero elements [in] sa array of length nonzeros containing the values of the nonzero elements [in] rhs array of length size containing the right hand side [in,out] solution array of length size to which the solution will be written, may also be used as initial guess by iterative solvers.
Implements Opm::LinearSolverInterface.
◆ solve() [3/3]
|
virtual |
Solve a linear system, with a matrix given in compressed sparse row format.
- Parameters
-
[in] size # of rows in matrix [in] nonzeros # of nonzeros elements in matrix [in] ia array of length (size + 1) containing start and end indices for each row [in] ja array of length nonzeros containing column numbers for the nonzero elements [in] sa array of length nonzeros containing the values of the nonzero elements [in] rhs array of length size containing the right hand side [in,out] solution array of length size to which the solution will be written, may also be used as initial guess by iterative solvers.
Implements Opm::LinearSolverInterface.
The documentation for this class was generated from the following file: