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IBAMR
IBAMR version 0.20.
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Class StaggeredStokesProjectionPreconditioner is a concrete StokesSolver that implements a staggered grid (MAC) projection solver for the incompressible Stokes operator. More...
#include <ibamr/StaggeredStokesProjectionPreconditioner.h>

Public Member Functions | |
| StaggeredStokesProjectionPreconditioner (const std::string &object_name, SAMRAI::tbox::Pointer< SAMRAI::tbox::Database > input_db, const std::string &default_options_prefix) | |
| Class constructor. More... | |
| ~StaggeredStokesProjectionPreconditioner () | |
| Destructor. More... | |
| virtual bool | needsVelocitySubdomainSolver () const |
| Indicate whether the preconditioner needs a velocity subdomain solver. More... | |
| virtual void | setVelocitySubdomainSolver (SAMRAI::tbox::Pointer< IBTK::PoissonSolver > velocity_solver) |
| Provide a velocity subdomain solver. More... | |
| void | setVelocityPoissonSpecifications (const SAMRAI::solv::PoissonSpecifications &U_problem_coefs) override |
| Set the PoissonSpecifications object used to specify the coefficients for the momentum equation in the incompressible Stokes operator. More... | |
| virtual bool | needsPressureSubdomainSolver () const |
| Indicate whether the preconditioner needs a pressure subdomain solver. More... | |
| virtual void | setPressureSubdomainSolver (SAMRAI::tbox::Pointer< IBTK::PoissonSolver > pressure_solver) |
| Provide a pressure subdomain solver. More... | |
| virtual void | setPressurePoissonSpecifications (const SAMRAI::solv::PoissonSpecifications &P_problem_coefs) |
| Set the PoissonSpecifications object used to specify the coefficients for the pressure-Poisson problem. More... | |
| virtual void | setPhysicalBcCoefs (const std::vector< SAMRAI::solv::RobinBcCoefStrategy< NDIM > * > &U_bc_coefs, SAMRAI::solv::RobinBcCoefStrategy< NDIM > *P_bc_coef) override |
| Set the SAMRAI::solv::RobinBcCoefStrategy objects used to specify physical boundary conditions. More... | |
| virtual void | setComponentsHaveNullSpace (const bool has_velocity_nullspace, const bool has_pressure_nullspace) |
| Set if velocity and pressure have nullspace. More... | |
| virtual void | setPhysicalBoundaryHelper (SAMRAI::tbox::Pointer< StaggeredStokesPhysicalBoundaryHelper > bc_helper) |
| Set the StokesSpecifications object and timestep size used to specify the coefficients for the time-dependent incompressible Stokes operator. More... | |
Linear solver functionality. | |
| bool | solveSystem (SAMRAI::solv::SAMRAIVectorReal< NDIM, double > &x, SAMRAI::solv::SAMRAIVectorReal< NDIM, double > &b) override |
| Compute the action of the preconditioner. More... | |
| void | initializeSolverState (const SAMRAI::solv::SAMRAIVectorReal< NDIM, double > &x, const SAMRAI::solv::SAMRAIVectorReal< NDIM, double > &b) override |
| Compute hierarchy dependent data required for solving \(Ax=b\). More... | |
| void | deallocateSolverState () override |
| Remove all hierarchy dependent data allocated by initializeSolverState(). More... | |
Linear solver functionality. | |
| virtual void | setNullSpace (bool nullspace_contains_constant_vec, const std::vector< SAMRAI::tbox::Pointer< SAMRAI::solv::SAMRAIVectorReal< NDIM, double >>> &nullspace_basis_vecs=std::vector< SAMRAI::tbox::Pointer< SAMRAI::solv::SAMRAIVectorReal< NDIM, double >>>()) |
| Set the nullspace of the linear system. More... | |
| virtual bool | getNullSpaceContainsConstantVector () const |
| Get whether the nullspace of the linear system contains th constant vector. More... | |
| virtual const std::vector< SAMRAI::tbox::Pointer< SAMRAI::solv::SAMRAIVectorReal< NDIM, double > > > & | getNullSpaceBasisVectors () const |
| Get the basis vectors for the nullspace of the linear system. More... | |
Functions to access solver parameters. | |
| virtual bool | getInitialGuessNonzero () const |
| Get whether the initial guess is non-zero. More... | |
General-purpose solver functionality. | |
| const std::string & | getName () const |
| Return the object name. More... | |
| virtual bool | getIsInitialized () const |
| Return whether the operator is initialized. More... | |
| virtual void | setHomogeneousBc (bool homogeneous_bc) |
| Set whether the solver should use homogeneous boundary conditions. More... | |
| virtual bool | getHomogeneousBc () const |
| Return whether the solver is using homogeneous boundary conditions. More... | |
| virtual void | setSolutionTime (double solution_time) |
| Set the time at which the solution is to be evaluated. More... | |
| virtual double | getSolutionTime () const |
| Get the time at which the solution is being evaluated. More... | |
| virtual void | setTimeInterval (double current_time, double new_time) |
| Set the current time interval. More... | |
| virtual std::pair< double, double > | getTimeInterval () const |
| Get the current time interval. More... | |
| virtual double | getDt () const |
| Get the current time step size. More... | |
| virtual void | setHierarchyMathOps (SAMRAI::tbox::Pointer< HierarchyMathOps > hier_math_ops) |
| Set the HierarchyMathOps object used by the solver. More... | |
| virtual SAMRAI::tbox::Pointer< HierarchyMathOps > | getHierarchyMathOps () const |
| Get the HierarchyMathOps object used by the solver. More... | |
Functions to access solver parameters. | |
| virtual int | getMaxIterations () const |
| Get the maximum number of nonlinear iterations to use per solve. More... | |
| virtual void | setAbsoluteTolerance (double abs_residual_tol) |
| Set the absolute residual tolerance for convergence. More... | |
| virtual double | getAbsoluteTolerance () const |
| Get the absolute residual tolerance for convergence. More... | |
| virtual void | setRelativeTolerance (double rel_residual_tol) |
| Set the relative residual tolerance for convergence. More... | |
| virtual double | getRelativeTolerance () const |
| Get the relative residual tolerance for convergence. More... | |
Functions to access data on the most recent solve. | |
| virtual int | getNumIterations () const |
| Return the iteration count from the most recent solve. More... | |
| virtual double | getResidualNorm () const |
| Return the residual norm from the most recent iteration. More... | |
Static Public Member Functions | |
| static SAMRAI::tbox::Pointer< StaggeredStokesSolver > | allocate_solver (const std::string &object_name, SAMRAI::tbox::Pointer< SAMRAI::tbox::Database > input_db, const std::string &default_options_prefix) |
| Static function to construct a StaggeredStokesProjectionPreconditioner. More... | |
Protected Member Functions | |
| void | correctNullSpace (SAMRAI::tbox::Pointer< SAMRAI::solv::SAMRAIVectorReal< NDIM, double >> U_vec, SAMRAI::tbox::Pointer< SAMRAI::solv::SAMRAIVectorReal< NDIM, double >> P_vec) |
| Remove components in operator null space. More... | |
Logging functions. | |
| virtual void | printClassData (std::ostream &stream) override |
| Print class data to stream. More... | |
| bool | d_initial_guess_nonzero = true |
| bool | d_nullspace_contains_constant_vec = false |
| std::vector< SAMRAI::tbox::Pointer< SAMRAI::solv::SAMRAIVectorReal< NDIM, double > > > | d_nullspace_basis_vecs |
Logging functions. | |
| virtual void | setLoggingEnabled (bool enable_logging=true) |
| Enable or disable logging. More... | |
| virtual bool | getLoggingEnabled () const |
| Determine whether logging is enabled or disabled. More... | |
| std::string | d_object_name = "unitialized" |
| bool | d_is_initialized = false |
| bool | d_homogeneous_bc = false |
| double | d_solution_time = std::numeric_limits<double>::quiet_NaN() |
| double | d_current_time = std::numeric_limits<double>::quiet_NaN() |
| double | d_new_time = std::numeric_limits<double>::quiet_NaN() |
| double | d_rel_residual_tol = 0.0 |
| double | d_abs_residual_tol = 0.0 |
| int | d_max_iterations = 100 |
| int | d_current_iterations = 0 |
| double | d_current_residual_norm = std::numeric_limits<double>::quiet_NaN() |
| bool | d_hier_math_ops_external = false |
| bool | d_enable_logging = false |
| void | init (const std::string &object_name, bool homogeneous_bc) |
| virtual void | initSpecialized (const std::string &object_name, bool homogeneous_bc) |
Sample parameters for initialization from database (and their default values):
skip_velocity_solve = FALSE // set whether to skip the velocity solve; this is equivalent
// to treating viscosity explicitly in the preconditioner
| IBAMR::StaggeredStokesProjectionPreconditioner::StaggeredStokesProjectionPreconditioner | ( | const std::string & | object_name, |
| SAMRAI::tbox::Pointer< SAMRAI::tbox::Database > | input_db, | ||
| const std::string & | default_options_prefix | ||
| ) |
| IBAMR::StaggeredStokesProjectionPreconditioner::~StaggeredStokesProjectionPreconditioner | ( | ) |
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| from | The value to copy to this object. |
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Implements IBTK::GeneralSolver.
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| x | solution vector |
| b | right-hand-side vector |
Conditions on Parameters:
Reimplemented from IBAMR::StaggeredStokesBlockPreconditioner.
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Reimplemented from IBAMR::StaggeredStokesBlockPreconditioner.
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Reimplemented from IBTK::LinearSolver.
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Reimplemented from IBTK::GeneralSolver.
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| that | The value to assign to this object. |
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Reimplemented from IBAMR::StaggeredStokesSolver.
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| U_bc_coefs | vector of pointers to objects that can set the Robin boundary condition coefficients for the velocity |
| P_bc_coef | Pointer to object that can set the Robin boundary condition coefficients for the pressure |
Reimplemented from IBAMR::StaggeredStokesSolver.
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Implementations can require the nullspace basis vectors to be orthogonal but should not assume the basis vectors to be orthonormal. If the basis vectors are not orthonormal, the solver may normalize them in place.
Reimplemented in IBTK::PETScLevelSolver, and IBTK::PETScKrylovLinearSolver.
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Reimplemented in IBTK::PETScPCLSWrapper.
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Reimplemented in IBTK::NewtonKrylovSolver, IBTK::KrylovLinearSolver, and IBTK::FACPreconditioner.
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Reimplemented in IBAMR::CIBStaggeredStokesSolver, IBTK::NewtonKrylovSolver, IBTK::KrylovLinearSolver, and IBTK::FACPreconditioner.
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Reimplemented in IBAMR::CIBStaggeredStokesSolver, IBTK::NewtonKrylovSolver, IBTK::KrylovLinearSolver, and IBTK::FACPreconditioner.
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Reimplemented in IBTK::NewtonKrylovSolver, and IBTK::KrylovLinearSolver.
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Reimplemented in IBTK::PETScPCLSWrapper.
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Reimplemented in IBTK::PETScPCLSWrapper.
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Reimplemented in IBTK::PETScPCLSWrapper.
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Reimplemented in IBTK::PETScPCLSWrapper.
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Reimplemented in IBTK::PETScPCLSWrapper.
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Reimplemented in IBTK::PETScPCLSWrapper, IBTK::BJacobiPreconditioner, and IBTK::BGaussSeidelPreconditioner.
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Reimplemented in IBTK::PETScPCLSWrapper, IBTK::BJacobiPreconditioner, and IBTK::BGaussSeidelPreconditioner.
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Reimplemented in IBTK::PoissonSolver.
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