ga_main.cpp

基于时域有限差分的遗传算法主程序

}

void repchar (FILE *outfp, char *ch, int repcount)
{
    int j;
    for (j = 1; j <= repcount; j++) fprintf(outfp,"%s", ch);
}

void skip(FILE *outfp,int skipcount)
{
    int j;
    for (j = 1; j <= skipcount; j++) fprintf(outfp,"\n");
}

void objfunc(struct individual *critter)            /* 计算适应度函数值 */
{
    transfer(critter);
	int right;

	char file1[] = "E:\\GA\\SGA\\data\\file1.txt";
	if((fp1=fopen(file1,"w")) == NULL)
	{
		printf("error,I can't open the file1.txt\n");
		exit(0);
	}
	right = 1;
	fprintf(fp1,"%lf\t%d",critter->varible,right);
	fclose(fp1);

	system("E:\\PhC\\PCCouplerDesign\\Release\\PCCouplerDesign.exe");

	char file2[] = "E:\\GA\\SGA\\data\\file2.txt";
	fp2=fopen(file2,"r");
	right = 0;
	while(right == 0)
	{
		fseek(fp2,0,0);
		fscanf(fp2,"%lf\t%d",&(critter->fitness),&right);
	}
	fclose(fp2);
}

void transfer(struct individual *critter)            /* 计算适应度函数值 */
{
	unsigned mask=1;
    unsigned bitpos;
    unsigned tp;
    double bitpow ;
    int j, k, stop;
    critter->varible = 0.0;
    for(k = 0; k < chromsize; k++)
    {
        if(k == (chromsize-1))
            stop = lchrom-(k*(8*sizeof(unsigned)));
        else
            stop =8*sizeof(unsigned);
        tp = critter->chrom[k];
        for(j = 0; j < stop; j++)
        {
            bitpos = j + (8*sizeof(unsigned))*k;
            if((tp&mask) == 1)
            {
                bitpow = pow(2.0,(double) bitpos);
                critter->varible = critter->varible + bitpow;
            }
            tp = tp>>1;
        }
    }
    critter->varible =0+critter->varible*1/(pow(2.0,(double)lchrom)-1);
}

/*void objfunc2(struct bestever *critter2)            计算适应度函数值 
{
    transfer2(critter2);
	int right;

	char file3[] = "E:\\GA\\SGA\\data\\file3.txt";
	if((fp3=fopen(file3,"w")) == NULL)
	{
		printf("error,I can't open the file1.txt\n");
		exit(0);
	}
	right = 1;
	fprintf(fp3,"%lf\t%d",critter2->varible,right);
	fclose(fp3);

	system("E:\\test.exe");

	char file2[] = "E:\\GA\\SGA\\data\\file2.txt";
	fp2=fopen(file2,"r");
	right = 0;
	while(right == 0)
	{
		fseek(fp2,0,0);
		fscanf(fp2,"%lf\t%d",&(critter->fitness),&right);
	}
	fclose(fp2);
}

void transfer2(struct bestever *critter2)             计算适应度函数值 
{
	unsigned mask=1;
    unsigned bitpos;
    unsigned tp;
    double bitpow ;
    int j, k, stop;
    critter2->varible = 0.0;
    for(k = 0; k < chromsize; k++)
    {
        if(k == (chromsize-1))
            stop = lchrom-(k*(8*sizeof(unsigned)));
        else
            stop =8*sizeof(unsigned);
        tp = critter2->chrom[k];
        for(j = 0; j < stop; j++)
        {
            bitpos = j + (8*sizeof(unsigned))*k;
            if((tp&mask) == 1)
            {
                bitpow = pow(2.0,(double) bitpos);
                critter2->varible = critter2->varible + bitpow;
            }
            tp = tp>>1;
        }
    }
    critter2->varible =-2+critter2->varible*3/(pow(2.0,(double)lchrom)-1);
}*/

void  mutation(unsigned *child)   /*变异操作*/
{
    int j, k, stop;
    unsigned mask, temp = 1;
    for(k = 0; k < chromsize; k++)
    {
        mask = 0;
        if(k == (chromsize-1))
            stop = lchrom - (k*(8*sizeof(unsigned)));
        else
            stop = 8*sizeof(unsigned);
        for(j = 0; j < stop; j++)
        {
            if(flip(pmutation))
            {
                mask = mask|(temp<<j);
                nmutation++;
            }
        }
        child[k] = child[k]^mask;
    }
}

int crossover (unsigned *parent1, unsigned *parent2, unsigned *child1, unsigned *child2)
/* 由两个父个体交叉产生两个子个体 */
{
    int j, jcross, k;
    unsigned mask, temp;
    if(flip(pcross))
    {
        jcross = rnd(1 ,(lchrom - 1));/* Cross between 1 and l-1 */
        ncross++;
        for(k = 1; k <= chromsize; k++)
        {
            if(jcross >= (k*(8*sizeof(unsigned))))
            {
                child1[k-1] = parent1[k-1];
                child2[k-1] = parent2[k-1];
            }
            else if((jcross < (k*(8*sizeof(unsigned)))) && (jcross > ((k-1)*(8*sizeof(unsigned)))))
            {
                mask = 1;
                for(j = 1; j <= (jcross-1-((k-1)*(8*sizeof(unsigned)))); j++)
                {
                    temp = 1;
                    mask = mask<<1;
                    mask = mask|temp;
                }
                child1[k-1] = (parent1[k-1]&mask)|(parent2[k-1]&(~mask));
                child2[k-1] = (parent1[k-1]&(~mask))|(parent2[k-1]&mask);
            }
            else
            {
                child1[k-1] = parent2[k-1];
                child2[k-1] = parent1[k-1];
            }
        }
    }
    else
    {
        for(k = 0; k < chromsize; k++)
        {
            child1[k] = parent1[k];
            child2[k] = parent2[k];
        }
        jcross = 0;
    }
    return(jcross);
}

void advance_random()          /* 产生55个随机数 */
{
    int j1;
    double new_random;
    for(j1 = 0; j1 < 24; j1++)
    {
        new_random = oldrand[j1] - oldrand[j1+31];
        if(new_random < 0.0) new_random = new_random + 1.0;
        oldrand[j1] = new_random;
    }
    for(j1 = 24; j1 < 55; j1++)
    {
        new_random = oldrand [j1] - oldrand [j1-24];
        if(new_random < 0.0) new_random = new_random + 1.0;
        oldrand[j1] = new_random;
    }
}

int flip(double prob)          /* 以一定概率产生0或1 */
{
    if(randomperc() <= prob)
        return(1);
    else
        return(0);
}

void randomize()            /* 设定随机数种子并初始化随机数发生器 */
{
    double randomseed;
    int j1;
    for(j1=0; j1<=54; j1++)
      oldrand[j1] = 0.0;
    jrand=0;
      do
        {
              printf("随机数种子[0-1]:");
              scanf("%lf", &randomseed);
         }
        while((randomseed < 0.0) || (randomseed > 1.0));
    warmup_random(randomseed);
}

double randomnormaldeviate()         /* 产生随机标准差 */
{
    double t, rndx1;
    if(rndcalcflag)
    {   rndx1 = sqrt(-2.0*log((double) randomperc()));
        t = 6.2831853072 * (double) randomperc();
        rndx2 = rndx1 * sin(t);
        rndcalcflag = 0;
        return(rndx1 * cos(t));
    }
    else
    {
        rndcalcflag = 1;
        return(rndx2);
    }
}

double randomperc()            /*与库函数random()作用相同, 产生[0,1]之间一个随机数 */
{
    jrand++;
    if(jrand >= 55)
    {
        jrand = 1;
        advance_random();
    }
    return((double) oldrand[jrand]);
}

int rnd(int low, int high)           /*在整数low和high之间产生一个随机整数*/
{
    int i;

    if(low >= high)
        i = low;
    else
    {
        i = (randomperc() * (high - low + 1)) + low;
        if(i > high) i = high;
    }
    return(i);
}


void warmup_random(double random_seed)       /* 初始化随机数发生器*/
{
    int j1, ii;
    double new_random, prev_random;

    oldrand[54] = random_seed;
    new_random = 0.000000001;
    prev_random = random_seed;
    for(j1 = 1 ; j1 <= 54; j1++)
    {
        ii = (21*j1)%54;
        oldrand[ii] = new_random;
        new_random = prev_random-new_random;
        if(new_random<0.0) new_random = new_random + 1.0;
        prev_random = oldrand[ii];
    }
    advance_random();
    advance_random();
    advance_random();
    jrand = 0;
}


void main()           /*  主程序  */
{
   struct individual *temp;

   char filename[] = "E:\\GA\\SGA\\data\\sga2.txt.";
   
   if((outfp = fopen(filename,"w")) == NULL)
   {
     fprintf(stderr,"Cannot open output file %s\n",filename);
     exit(-1);
   }
   

     title();
     printf("输入遗传算法执行次数(1-5):");
     scanf("%d",&maxruns);
     for(run=1; run<=maxruns; run++)
    {
        initialize();
        for(gen=0; gen<maxgen; gen++)
        {
         fprintf(outfp,"\n第 %d / %d 次运行: 当前代为 %d, 共 %d 代\n", run,maxruns,gen,maxgen);
            /* 产生新一代 */
            generation();
            /* 计算新一代种群的适应度统计数据 */
            statistics(newpop);
            /* 输出新一代统计数据 */
            report();
            temp = oldpop;
            oldpop = newpop;
            newpop = temp;
        }
        freeall();
    }
}