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sweep.cpp
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sweep.cpp
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/***************************************************************************
* Copyright (C) 2015 Tian-Li Yu and Shih-Huan Hsu *
* tianliyu@ntu.edu.tw *
***************************************************************************/
#include <cstdlib>
#include <cmath>
#include <iostream>
#include <fstream>
#include "statistics.h"
#include "dsmga2.h"
#include "global.h"
#define MAX_GEN 200
int step = 30;
using namespace std;
struct Record {
int n;
double nfe;
double gen;
};
int main (int argc, char *argv[]) {
if (argc != 4 && argc!=5 && argc !=6 && argc != 7) {
printf ("sweep ell numConvergence function(0~3)\n");
printf ("sweep ell numConvergence 4 [step #] [nk problem #]\n");
printf ("sweep ell numConvergence 5 [spin problem #]\n");
printf ("sweep ell numConvergence 6 [sat problem #]\n");
printf ("function: \n");
printf (" ONEMAX: 0\n");
printf (" MK : 1\n");
printf (" FTRAP : 2\n");
printf (" CYC : 3\n");
printf (" NK : 4\n");
printf (" SPIN : 5\n");
printf (" SAT : 6\n");
return -1;
}
int ell = atoi (argv[1]);
int numConvergence = atoi (argv[2]); // problem size
int fffff = atoi(argv[3]);
int problemNum = 0;
int neighborNum = 0;
int stepNum = 0;
if (fffff == 4) {
neighborNum = 4;
stepNum = atoi (argv[4]);
problemNum = atoi (argv[5]);
}
if (fffff == 5 || fffff == 6) {
problemNum = atoi (argv[4]);
}
int nInitial = 10;
// for debug
// myRand.seed(123);
Statistics st;
Statistics stGen, stLS, stNFE;
if (fffff == 5) {
char filename[200];
sprintf(filename, "./SPIN/%d/%d_%d",ell, ell, problemNum);
if (SHOW_BISECTION) printf("Loading: %s\n", filename);
loadSPIN(filename, &mySpinGlassParams);
}
if (fffff == 4) {
char filename[200];
sprintf(filename, "./NK_Instance/pnk%d_%d_%d_%d", ell, neighborNum, stepNum, problemNum);
if (SHOW_BISECTION) printf("Loading: %s\n", filename);
FILE *fp = fopen(filename, "r");
loadNKWAProblem(fp, &nkwa);
fclose(fp);
}
if (fffff == 6) {
char filename[200];
sprintf(filename, "./SAT/uf%d/uf%d-0%d.cnf",ell,ell,problemNum);
if (SHOW_BISECTION) printf("Loading: %s\n", filename);
loadSAT(filename, &mySAT);
}
bool foundOptima;
Record rec[3];
rec[0].n = nInitial;
rec[1].n = nInitial+step;
rec[2].n = nInitial+step+step;
int popu;
Record q1, q3;
if (SHOW_BISECTION) printf("Bisection phase 1\n");
for (int i=0; i<3; ++i) {
popu = rec[i].n;
if (SHOW_BISECTION) printf("[%d]: ", popu);
foundOptima = true;
stGen.reset();
stNFE.reset();
stLS.reset();
for (int j=0; j<numConvergence; j++) {
DSMGA2 ga(ell, popu, MAX_GEN, -1, fffff);
ga.doIt(false);
stGen.record(ga.getGeneration());
stNFE.record(Chromosome::hitnfe);
stLS.record(Chromosome::lsnfe);
if (!ga.foundOptima()) {
foundOptima = false;
if (SHOW_BISECTION) {
printf("-");
fflush(NULL);
}
break;
}
if (SHOW_BISECTION) {
printf("+");
fflush(NULL);
}
}
rec[i].gen = stGen.getMean();
if (!foundOptima)
rec[i].nfe = INF;
else
rec[i].nfe = stNFE.getMean();
if (SHOW_BISECTION) printf(" : %f \n", rec[i].nfe);
}
while (rec[0].nfe < rec[1].nfe && ((rec[2].n-rec[0].n)*20 > rec[1].n)) {
rec[2] = rec[1];
rec[1].n = (rec[0].n + rec[2].n) / 2;
step /= 2;
popu = rec[1].n;
if (SHOW_BISECTION) printf("[%d]: ", popu);
for (int j=0; j<numConvergence; j++) {
DSMGA2 ga(ell, popu, MAX_GEN, -1, fffff);
ga.doIt(false);
stGen.record(ga.getGeneration());
stNFE.record(Chromosome::hitnfe);
stLS.record(Chromosome::lsnfe);
if (!ga.foundOptima()) {
foundOptima = false;
if (SHOW_BISECTION) {
printf("-");
fflush(NULL);
}
break;
}
if (SHOW_BISECTION) {
printf("+");
fflush(NULL);
}
}
rec[1].gen = stGen.getMean();
if (!foundOptima)
rec[1].nfe = INF;
else
rec[1].nfe = stNFE.getMean();
if (SHOW_BISECTION) printf(" : %f \n", rec[1].nfe);
}
while ( (rec[1].nfe >= rec[0].nfe) || (rec[1].nfe >= rec[2].nfe)) {
popu = rec[2].n + step;
if (SHOW_BISECTION) printf("[%d]: ", popu);
foundOptima = true;
stGen.reset();
stNFE.reset();
stLS.reset();
for (int j=0; j<numConvergence; j++) {
DSMGA2 ga(ell, popu, MAX_GEN, -1, fffff);
ga.doIt(false);
stGen.record(ga.getGeneration());
stNFE.record(Chromosome::hitnfe);
stLS.record(Chromosome::lsnfe);
if (!ga.foundOptima()) {
foundOptima = false;
if (SHOW_BISECTION) {
printf("-");
fflush(NULL);
}
break;
}
if (SHOW_BISECTION) {
printf("+");
fflush(NULL);
}
}
rec[0] = rec[1];
rec[1] = rec[2];
rec[2].n = popu;
rec[2].gen = stGen.getMean();
if (!foundOptima)
rec[2].nfe = INF;
else
rec[2].nfe = stNFE.getMean();
if (SHOW_BISECTION) printf(" : %f \n", rec[2].nfe);
}
if (SHOW_BISECTION) printf("Bisection phase 2\n");
while ( ((rec[2].n-rec[0].n)*20 > rec[1].n) && (rec[2].n>rec[1].n+1) && (rec[1].n>rec[0].n+1)) {
q1.n = (rec[0].n + rec[1].n) / 2;
if (SHOW_BISECTION) printf("[%d]: ", q1.n);
foundOptima = true;
for (int j=0; j<numConvergence; j++) {
DSMGA2 ga(ell, q1.n, MAX_GEN, -1, fffff);
ga.doIt(false);
if (!ga.foundOptima()) {
foundOptima = false;
if (SHOW_BISECTION) {
printf("-");
fflush(NULL);
}
break;
}
if (SHOW_BISECTION) {
printf("+");
fflush(NULL);
}
if (j==0) {
stGen.reset();
stLS.reset();
stNFE.reset();
}
stGen.record(ga.getGeneration());
stNFE.record(Chromosome::hitnfe);
stLS.record(Chromosome::lsnfe);
}
q1.gen = stGen.getMean();
if (foundOptima)
q1.nfe = stNFE.getMean();
else
q1.nfe = INF;
if (SHOW_BISECTION) printf(" : %f \n", q1.nfe);
q3.n = (rec[1].n + rec[2].n) / 2;
if (SHOW_BISECTION) printf("[%d]: ", q3.n);
foundOptima = true;
for (int j=0; j<numConvergence; j++) {
DSMGA2 ga(ell, q3.n, MAX_GEN, -1, fffff);
ga.doIt(false);
if (!ga.foundOptima()) {
foundOptima = false;
if (SHOW_BISECTION) {
printf("-");
fflush(NULL);
}
break;
}
if (SHOW_BISECTION) {
printf("+");
fflush(NULL);
}
if (j==0) {
stGen.reset();
stLS.reset();
stNFE.reset();
}
stGen.record(ga.getGeneration());
stNFE.record(Chromosome::hitnfe);
stLS.record(Chromosome::lsnfe);
}
q3.gen = stGen.getMean();
if (foundOptima) {
q3.nfe = stNFE.getMean();
} else
q3.nfe = INF;
if (SHOW_BISECTION) printf(" : %f \n", q3.nfe);
if (rec[1].nfe < q1.nfe && rec[1].nfe < q3.nfe) {
rec[0] = q1;
rec[2] = q3;
} else if (q1.nfe < rec[1].nfe && q1.nfe < q3.nfe) {
rec[2] = rec[1];
rec[1] = q1;
} else { // q3nfe smallest
rec[0] = rec[1];
rec[1] = q3;
}
};
if (fffff == 4)
freeNKWAProblem(&nkwa);
printf("population: %d\n", rec[1].n);
printf("generation: %f\n", rec[1].gen);
printf("NFE: %f\n", rec[1].nfe);
return EXIT_SUCCESS;
}