escript: paso::Function Struct Reference

escript Revision_Unversioneddirectory

#include <Functions.h>

Inheritance diagram for paso::Function:

Public Member Functions
	Function (esysUtils::JMPI &mpi_info)

virtual	~Function ()

virtual err_t	call (double value, const double arg, Performance *pp)=0
	sets value=F(arg) More...

err_t	derivative (double J0w, const double w, const double f0, const double x0, double setoff, Performance pp)

virtual dim_t	getLen ()=0
	returns the length of the vectors used by this function More...

Public Attributes
esysUtils::JMPI	mpi_info

Constructor & Destructor Documentation

paso::Function::Function ( esysUtils::JMPI & mpi_info )

References mpi_info.

paso::Function::~Function ( )

virtual

Member Function Documentation

virtual err_t paso::Function::call	(	double *	value,
		const double *	arg,
		Performance *	pp
	)

pure virtual

sets value=F(arg)

Implemented in paso::LinearSystem.

Referenced by derivative(), and paso::Solver_NewtonGMRES().

err_t paso::Function::derivative	(	double *	J0w,
		const double *	w,
		const double *	f0,
		const double *	x0,
		double *	setoff,
		Performance *	pp
	)

numerical calculation of the directional derivative J0w of F at x0 in the direction w. f0 is the value of F at x0. setoff is workspace

References call(), EPSILON, getLen(), paso::util::linearCombination(), paso::util::lsup(), MPI_DOUBLE, mpi_info, MPI_MAX, SOLVER_NO_ERROR, paso::util::update(), and paso::util::zeroes().

Referenced by paso::Solver_GMRES2().

virtual dim_t paso::Function::getLen ( )

pure virtual

returns the length of the vectors used by this function

Implemented in paso::LinearSystem.

Referenced by derivative(), paso::Solver_GMRES2(), and paso::Solver_NewtonGMRES().

Member Data Documentation

esysUtils::JMPI paso::Function::mpi_info

Referenced by derivative(), Function(), paso::Solver_GMRES2(), and paso::Solver_NewtonGMRES().

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