EpsilonScalingHandler Class Reference

Handler for epsilon scaling in multilevel optimization. More...

#include <EpsilonScalingHandler.h>

Public Member Functions
	EpsilonScalingHandler (const MPI_Comm &comm, double initial_epsilon, double scaling_factor, unsigned int num_steps)
	Constructor.
std::vector< std::vector< double > >	compute_epsilon_distribution (unsigned int num_levels)
	Compute epsilon distribution for multilevel optimization.
const std::vector< double > &	get_epsilon_values_for_level (unsigned int level_index) const
	Get epsilon values for a specific level.
void	print_epsilon_distribution () const
	Print the epsilon distribution.

Private Member Functions
std::vector< double >	generate_epsilon_sequence () const
	Generate the sequence of epsilon values.
std::vector< std::vector< double > >	distribute_epsilon_values (const std::vector< double > &epsilon_sequence, unsigned int num_levels)
	Distribute epsilon values across levels.

Private Attributes
MPI_Comm	mpi_communicator
	The MPI communicator.
const unsigned int	this_mpi_process
	The rank of the current MPI process.
ConditionalOStream	pcout
	A conditional output stream for parallel printing.
double	initial_epsilon
	The initial epsilon value.
double	scaling_factor
	The scaling factor for epsilon.
unsigned int	num_steps
	The total number of epsilon scaling steps.
std::vector< std::vector< double > >	epsilon_distribution
	The computed epsilon distribution.

Detailed Description

Handler for epsilon scaling in multilevel optimization.

This class manages the distribution of epsilon values across different levels of a multilevel optimization process, either for target point clouds or source meshes.

Handler for epsilon scaling in multilevel optimization.

This class manages the distribution of epsilon values across different levels of a multilevel optimization process, either for target point clouds or source meshes.

Definition at line 25 of file EpsilonScalingHandler.h.

Constructor & Destructor Documentation

EpsilonScalingHandler()

EpsilonScalingHandler::EpsilonScalingHandler	(	const MPI_Comm &	comm,
		double	initial_epsilon,
		double	scaling_factor,
		unsigned int	num_steps
	)

Constructor.

Parameters

comm	MPI communicator
initial_epsilon	Initial epsilon value
scaling_factor	Factor by which epsilon is scaled between steps
num_steps	Total number of epsilon scaling steps

Definition at line 6 of file EpsilonScalingHandler.cc.

Member Function Documentation

compute_epsilon_distribution()

std::vector< std::vector< double > > EpsilonScalingHandler::compute_epsilon_distribution

(

unsigned int

num_levels

)

Compute epsilon distribution for multilevel optimization.

Parameters

num_levels

Number of levels in the hierarchy

Returns

Vector of vectors containing epsilon values for each level

Definition at line 92 of file EpsilonScalingHandler.cc.

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get_epsilon_values_for_level()

const std::vector< double > & EpsilonScalingHandler::get_epsilon_values_for_level

(

unsigned int

level_index

)

const

Get epsilon values for a specific level.

Parameters

level_index

Index of the level (0 = coarsest)

Returns

Vector of epsilon values for the specified level

Definition at line 102 of file EpsilonScalingHandler.cc.

print_epsilon_distribution()

void EpsilonScalingHandler::print_epsilon_distribution

(

)

const

Print the epsilon distribution.

Definition at line 116 of file EpsilonScalingHandler.cc.

generate_epsilon_sequence()

std::vector< double > EpsilonScalingHandler::generate_epsilon_sequence ( ) const

private

Generate the sequence of epsilon values.

Returns

Vector of epsilon values from largest to smallest

Definition at line 30 of file EpsilonScalingHandler.cc.

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distribute_epsilon_values()

std::vector< std::vector< double > > EpsilonScalingHandler::distribute_epsilon_values ( const std::vector< double > &  epsilon_sequence, unsigned int  num_levels  )

private

Distribute epsilon values across levels.

Parameters

epsilon_sequence	Sequence of epsilon values
num_levels	Number of levels

Returns

Vector of vectors containing epsilon values for each level

Definition at line 44 of file EpsilonScalingHandler.cc.

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Member Data Documentation

mpi_communicator

MPI_Comm EpsilonScalingHandler::mpi_communicator

private

The MPI communicator.

Definition at line 63 of file EpsilonScalingHandler.h.

this_mpi_process

const unsigned int EpsilonScalingHandler::this_mpi_process

private

The rank of the current MPI process.

Definition at line 64 of file EpsilonScalingHandler.h.

pcout

ConditionalOStream EpsilonScalingHandler::pcout

private

A conditional output stream for parallel printing.

Definition at line 65 of file EpsilonScalingHandler.h.

initial_epsilon

double EpsilonScalingHandler::initial_epsilon

private

The initial epsilon value.

Definition at line 67 of file EpsilonScalingHandler.h.

scaling_factor

double EpsilonScalingHandler::scaling_factor

private

The scaling factor for epsilon.

Definition at line 68 of file EpsilonScalingHandler.h.

num_steps

unsigned int EpsilonScalingHandler::num_steps

private

The total number of epsilon scaling steps.

Definition at line 69 of file EpsilonScalingHandler.h.

epsilon_distribution

std::vector<std::vector<double> > EpsilonScalingHandler::epsilon_distribution

private

The computed epsilon distribution.

Definition at line 71 of file EpsilonScalingHandler.h.

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

• include/SemiDiscreteOT/solvers/EpsilonScalingHandler.h
• src/solvers/EpsilonScalingHandler.cc