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Public Member Functions | Public Attributes
paso::Function Struct Reference

#include <Functions.h>

Inheritance diagram for paso::Function:
paso::LinearSystem

List of all members.

Public Member Functions

 Function (Esys_MPIInfo *mpi_info)
virtual ~Function ()
virtual err_t call (double *value, const double *arg, Performance *pp)=0
 sets value=F(arg)
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

Public Attributes

Esys_MPIInfompi_info

Constructor & Destructor Documentation

References Esys_MPIInfo_free(), and mpi_info.


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(), Esys_MPIInfo::comm, EPSILON, getLen(), paso::util::linearCombination(), paso::util::lsup(), MPI_DOUBLE, mpi_info, 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


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