powell03< LNM, T > Class Template Reference

#include <powell03.h>

Collaboration diagram for powell03< LNM, T >:

List of all members.

Public Member Functions
	powell03 (LNM opt_)
	~powell03 ()
void	dirUnitVectors ()
	Reset the direction vectors to be perpendicular unit vectors.
Public Attributes
LNM	opt
uint	optiterations
	The number of iterations for one minimization.
uintc	dim
T *	memoryblock
T *	pos
	Positions.
T *	dir
	Direction vectors.
T *	xi
	function state
uintc	dir_current
	The start of the direction stack.
T **	linepathx0
T **	linepathdi
Protected Member Functions
void	minimize (uintc k)
	The k'th line is minimized with the new state in xi.

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Detailed Description

template<typename LNM, typename T>
class powell03< LNM, T >

Definition at line 10 of file powell03.h.

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Constructor & Destructor Documentation

template<typename LNM , typename T >

powell03< LNM, T >::powell03

(

LNM

opt_

)

[inline]

Definition at line 38 of file powell03.h.

References powell03< LNM, T >::dim, powell03< LNM, T >::dir, powell03< LNM, T >::linepathdi, powell03< LNM, T >::linepathx0, powell03< LNM, T >::memoryblock, powell03< LNM, T >::opt, powell03< LNM, T >::pos, and powell03< LNM, T >::xi.

    : opt(opt_), optiterations(10), dim(opt.linepath.dim)
  {
    memoryblock = new T[dim*dim*2 + dim*2];
    uint memi=0;
    pos = & memoryblock[memi];
    memi += dim*dim;
    dir = & memoryblock[memi];
    memi += dim*dim;
    xi = & memoryblock[memi];
    memi += dim;
    u0 = & memoryblock[memi];
    memi += dim;
  
    opt.linepath.xi = xi;
    linepathx0 = & opt.linepath.xo;
    linepathdi = & opt.linepath.di;
  }

template<typename LNM , typename T >

powell03< LNM, T >::~powell03

(

)

[inline]

Definition at line 57 of file powell03.h.

References powell03< LNM, T >::memoryblock.

    { delete[] memoryblock; }

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Member Function Documentation

template<typename LNM , typename T >

void powell03< LNM, T >::dirUnitVectors

(

)

[inline]

Reset the direction vectors to be perpendicular unit vectors.

Definition at line 81 of file powell03.h.

References powell03< LNM, T >::dim, and powell03< LNM, T >::dir.

{
  for (uint i=0; i<dim*dim; ++i)
    dir[i]=0;
  for (uint i=0; i<dim; ++i)
    dir[i*N+i]=(T)1;
}

template<typename LNM , typename T >

void powell03< LNM, T >::minimize

(

uintc

k

)

[inline, protected]

The k'th line is minimized with the new state in xi.

Definition at line 66 of file powell03.h.

References powell03< LNM, T >::dim, powell03< LNM, T >::dir, powell03< LNM, T >::dir_current, powell03< LNM, T >::linepathx0, powell03< LNM, T >::opt, powell03< LNM, T >::optiterations, and powell03< LNM, T >::pos.

  {
    *linepathx0 = pos+dim*k; 
    uintc k2 = (dir_current + k ) % dim;
    *linepathd1 = dir+dim*k2;

    opt.reset(0.0,5.0);
    for (uint i=0; i<optiterations; ++i)
      ++opt;
  }

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Member Data Documentation

template<typename LNM , typename T >

uintc powell03< LNM, T >::dim

Definition at line 18 of file powell03.h.

Referenced by powell03< LNM, T >::dirUnitVectors(), powell03< LNM, T >::minimize(), and powell03< LNM, T >::powell03().

template<typename LNM , typename T >

T* powell03< LNM, T >::dir

Direction vectors.

Definition at line 25 of file powell03.h.

Referenced by powell03< LNM, T >::dirUnitVectors(), powell03< LNM, T >::minimize(), and powell03< LNM, T >::powell03().

template<typename LNM , typename T >

uintc powell03< LNM, T >::dir_current

The start of the direction stack.

Definition at line 30 of file powell03.h.

Referenced by powell03< LNM, T >::minimize().

template<typename LNM , typename T >

T** powell03< LNM, T >::linepathdi

Definition at line 33 of file powell03.h.

Referenced by powell03< LNM, T >::powell03().

template<typename LNM , typename T >

T** powell03< LNM, T >::linepathx0

Definition at line 32 of file powell03.h.

Referenced by powell03< LNM, T >::minimize(), and powell03< LNM, T >::powell03().

template<typename LNM , typename T >

T* powell03< LNM, T >::memoryblock

Definition at line 20 of file powell03.h.

Referenced by powell03< LNM, T >::powell03(), and powell03< LNM, T >::~powell03().

template<typename LNM , typename T >

LNM powell03< LNM, T >::opt

Definition at line 14 of file powell03.h.

Referenced by powell03< LNM, T >::minimize(), and powell03< LNM, T >::powell03().

template<typename LNM , typename T >

uint powell03< LNM, T >::optiterations

The number of iterations for one minimization.

O(fn) multiplier.

Definition at line 16 of file powell03.h.

Referenced by powell03< LNM, T >::minimize().

template<typename LNM , typename T >

T* powell03< LNM, T >::pos

Positions.

Definition at line 23 of file powell03.h.

Referenced by powell03< LNM, T >::minimize(), and powell03< LNM, T >::powell03().

template<typename LNM , typename T >

T* powell03< LNM, T >::xi

function state

Definition at line 27 of file powell03.h.

Referenced by powell03< LNM, T >::powell03().

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

• patternsearch/powell03.h