Simplex Class Reference

#include <simplex.hxx>

Collaboration diagram for Simplex:

Public Member Functions
	Simplex (long, long, Maestro &)
	~Simplex (void)
void	setStop (long)
void	start (void)
int	next (void)
void	finish (void)
void	solve (void)
Solution *	solution (void)

Protected Member Functions
Solution *	add (Solution *)
std::vector< double > *	minimum (void)
std::vector< double > *	barycentre (void)

Protected Attributes
long	size
long	nbin
long	maxe
long	nbeval
std::vector< Solution * >	simplx
std::vector< Point * >	work
Maestro *	calc

Detailed Description

Definition at line 29 of file simplex.hxx.

Constructor & Destructor Documentation

Simplex()

Simplex::Simplex	(	long	sz,
		long	nbgen,
		Maestro &	maest
	)

Definition at line 26 of file simplex.cxx.

{
    size = sz;
    nbin = nbgen;
    calc = &maest;
    maxe = 40000;
    nbeval = 0;
}

References calc, maxe, nbeval, nbin, and size.

~Simplex()

Simplex::~Simplex

(

void

)

Definition at line 35 of file simplex.cxx.

{
    int     i;
    
    if (work.size() == size) {
        for (i=0; i<size; i++)
            delete work[i];
        for (i=0; i<nbin; i++)
            delete simplx[i];
    }
}

References yacsorb.CORBAEngineTest::i, nbin, simplx, size, and work.

Member Function Documentation

add()

Solution * Simplex::add ( Solution *  sol )

protected

Definition at line 101 of file simplex.cxx.

{
    int     i;
    Solution    *ret, *swp;
    
    if (simplx.size() < nbin) {
        ret = (Solution *) NULL;
        i = simplx.size();
        simplx.push_back(sol);
        while (i && simplx[i]->obj[0] < simplx[i-1]->obj[0]) {
            // TODO swap interne
            swp = simplx[i];
            simplx[i] = simplx[i-1];
            simplx[i-1] = swp;
            i--;
        }
    }
    else if (sol->obj[0] > simplx[nbin-1]->obj[0])
        ret = sol;
    else {
        i = nbin -1;
        ret = simplx[i];
        simplx[i] = sol;
        while (i && simplx[i]->obj[0] < simplx[i-1]->obj[0]) {
            swp = simplx[i];
            simplx[i] = simplx[i-1];
            simplx[i-1] = swp;
            i--;
        }
    }
    return ret;
}

References yacsorb.CORBAEngineTest::i, nbin, Solution::obj, and simplx.

Referenced by next().

barycentre()

std::vector< double > * Simplex::barycentre ( void  )

protected

Definition at line 139 of file simplex.cxx.

{
    int     i,j;
    std::vector<double>     *ret;
 
    ret = new std::vector<double>(nbin);
    for (i=0; i<nbin; i++) {
        (*ret)[i] = 0.0;
        for (j=0; j<nbin; j++)
            (*ret)[i] += (*simplx[j]->param)[i];
        (*ret)[i] /= nbin;
    }
    return ret;
}

References yacsorb.CORBAEngineTest::i, nbin, and simplx.

Referenced by next().

finish()

void Simplex::finish

(

void

)

Definition at line 90 of file simplex.cxx.

{
    std::cout << maxe - nbeval << std::endl;
    return;
}

References maxe, and nbeval.

Referenced by YACS::ENGINE::PluginSimplex::finish().

minimum()

std::vector< double > * Simplex::minimum ( void  )

protected

Definition at line 134 of file simplex.cxx.

{
    return new std::vector<double>(*simplx[0]->param);
}

References simplx.

Referenced by next().

next()

int Simplex::next

(

void

)

Definition at line 65 of file simplex.cxx.

{
    long        id;
    Solution    *pt, *pnt;
    std::vector<double>     *next, *res;
    
    res = calc->get(&id);
    nbeval--;
    pt = work[id]->inform(*res);
    if (pt) {
        pnt = add(pt);
        if (pnt)
            work[id]->mute(*pnt, *barycentre(), *minimum());
        else
            work[id]->reinit();
    }
    next = work[id]->next();
    if (nbeval > size)
        if (next) 
            calc->put(id, *next);
        //else
        //    nbeval = size - 1;
    return (nbeval > 0);
}

References add(), barycentre(), calc, Maestro::get(), minimum(), nbeval, next(), Maestro::put(), size, and work.

Referenced by next(), start(), and YACS::ENGINE::PluginSimplex::takeDecision().

setStop()

void Simplex::setStop

(

long

max

)

Definition at line 47 of file simplex.cxx.

{
    maxe = max;
}

References maxe.

Referenced by YACS::ENGINE::PluginSimplex::parseFileToInit().

solution()

Solution * Simplex::solution

(

void

)

Definition at line 96 of file simplex.cxx.

{
    return simplx[0];
}

References simplx.

Referenced by YACS::ENGINE::PluginSimplex::finish().

solve()

void Simplex::solve

(

void

)

start()

void Simplex::start

(

void

)

Definition at line 52 of file simplex.cxx.

{
    long    i;
 
    work.resize(size);
    for (i=0; i<size; i++) {
        work[i] = new Point(nbin);
        calc->put(i, *(work[i]->next()));
    }
    nbeval = maxe;
}

References calc, yacsorb.CORBAEngineTest::i, maxe, nbeval, nbin, next(), Maestro::put(), size, and work.

Referenced by YACS::ENGINE::PluginSimplex::start().

Member Data Documentation

calc

Maestro* Simplex::calc

protected

Definition at line 34 of file simplex.hxx.

Referenced by next(), Simplex(), and start().

maxe

long Simplex::maxe

protected

Definition at line 31 of file simplex.hxx.

Referenced by finish(), setStop(), Simplex(), and start().

nbeval

long Simplex::nbeval

protected

Definition at line 31 of file simplex.hxx.

Referenced by finish(), next(), Simplex(), and start().

nbin

long Simplex::nbin

protected

Definition at line 31 of file simplex.hxx.

Referenced by add(), barycentre(), Simplex(), start(), and ~Simplex().

simplx

std::vector<Solution *> Simplex::simplx

protected

Definition at line 32 of file simplex.hxx.

Referenced by add(), barycentre(), minimum(), solution(), and ~Simplex().

size

long Simplex::size

protected

Definition at line 31 of file simplex.hxx.

Referenced by next(), Simplex(), start(), and ~Simplex().

work

std::vector<Point *> Simplex::work

protected

Definition at line 33 of file simplex.hxx.

Referenced by next(), start(), and ~Simplex().

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

• src/engine/Plugin/simplex.hxx
• src/engine/Plugin/simplex.cxx