Description

Accelerated Projected Gradient Descent (APGD) solver. Reference implementation.

#include <ChSolverParallel.h>

Inheritance diagram for chrono::ChSolverParallelAPGDREF:

Collaboration diagram for chrono::ChSolverParallelAPGDREF:

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Public Member Functions
uint	Solve (ChShurProduct &ShurProduct, ChProjectConstraints &Project, const uint max_iter, const uint size, const DynamicVector< real > &r, DynamicVector< real > &gamma)
	Solve using the APGD method. More...

real	Res4 (ChShurProduct &ShurProduct, ChProjectConstraints &Project, DynamicVector< real > &gamma, const DynamicVector< real > &r, DynamicVector< real > &tmp)
	Compute the residual for the solver. More...

Public Member Functions inherited from chrono::ChSolverParallel
void	Setup (ChParallelDataManager *data_container_)

void	ComputeSRhs (custom_vector< real > &gamma, const custom_vector< real > &rhs, custom_vector< real3 > &vel_data, custom_vector< real3 > &omg_data, custom_vector< real > &b)
	Compute rhs value with relaxation term.

void	AtIterationEnd (real maxd, real maxdeltalambda)

real	LargestEigenValue (ChShurProduct &ShurProduct, DynamicVector< real > &temp, real lambda=0)

Public Attributes
DynamicVector< real >	gamma_hat
	APGD specific vectors.

DynamicVector< real >	gammaNew

DynamicVector< real >	g

DynamicVector< real >	y

DynamicVector< real >	yNew

DynamicVector< real >	tmp

Public Attributes inherited from chrono::ChSolverParallel
int	current_iteration
	The current iteration number of the solver.

ChConstraintRigidRigid *	rigid_rigid

ChConstraintBilateral *	bilateral

Ch3DOFContainer *	three_dof

Ch3DOFContainer *	fem

Ch3DOFContainer *	mpm

ChParallelDataManager *	data_manager
	Pointer to the system's data manager.

DynamicVector< real >	eigen_vec

Member Function Documentation

real ChSolverParallelAPGDREF::Res4	(	ChShurProduct &	ShurProduct,
		ChProjectConstraints &	Project,
		DynamicVector< real > &	gamma,
		const DynamicVector< real > &	r,
		DynamicVector< real > &	tmp
	)

Compute the residual for the solver.

Parameters

uint ChSolverParallelAPGDREF::Solve	(	ChShurProduct &	ShurProduct,
		ChProjectConstraints &	Project,
		const uint	max_iter,
		const uint	size,
		const DynamicVector< real > &	r,
		DynamicVector< real > &	gamma
	)

virtual

Solve using the APGD method.

Parameters

ShurProduct	Schur product
Project	Constraints
max_iter	Maximum number of iterations
size	Number of unknowns
r	Rhs vector
gamma	The vector of unknowns

The documentation for this class was generated from the following files: