cuda产生随机数的程序为

#include 
    
       #include 
     
        #include
      
         #include
       
              int n = 200;  using namespace std;    __device__ float generate( curandState* globalState, int ind )   {      //int ind = threadIdx.x;      curandState localState = globalState[ind];      float RANDOM = curand_uniform( &localState );      globalState[ind] = localState;      return RANDOM;  }    __global__ void setup_kernel ( curandState * state, unsigned long seed )  {      int id = threadIdx.x;      curand_init ( seed, id, 0, &state[id] );  }    __global__ void kernel(float* N, curandState* globalState, int n)  {      // generate random numbers      for(int i=0;i<400;i++)      {          int k = generate(globalState, i) * 3;          while(k > n*n-1)          {              k-=(n*n-1);          }          N[i] = k-1;      }  }    int main()   {      int N=400;        curandState* devStates;      cudaMalloc ( &devStates, N*sizeof( curandState ) );        // setup seeds      setup_kernel <<< 1, N >>> ( devStates,unsigned(time(NULL)) );        float N2[400];      float* N3;      cudaMalloc((void**) &N3, sizeof(float)*N);        kernel<<<1,1>>> (N3, devStates, n);        cudaMemcpy(N2, N3, sizeof(float)*N, cudaMemcpyDeviceToHost);        for(int i=0;i
       
      
     
    

其中400是产生随机数的个数

c++产生随机数的程序为

#include 
    
      #include 
     
       #include 
      
        int main() { 	int i,k; 	srand( (unsigned)time( NULL ) );	int num_0=0,num_1=0,num_f1; 	for( i = 0; i < 500000;i++ ) 	{ 		k=rand() % 3-1;; 		printf( " k=%d\n", k );		if(k==0){			num_0++;		} else if(k==1){			num_1++;		}else{			num_f1++;		}	}	printf("%d\n",num_0);	printf("%d\n",num_1);	printf("%d\n",num_f1);		return 0; }