cuda vscode编译配置

#include <iostream> #include <cstdlib> #include <sys/time.h> using namespace std; void vecAdd(float* A, float* B, float* C, int n) { for (int i = 0; i < n; i++) { C[i] = A[i] + B[i]; } } int main(int argc, char *argv[]) { int n = atoi(argv[1]); cout << n << endl; size_t size = n * sizeof(float); // host memery float *a = (float *)malloc(size); float *b = (float *)malloc(size); float *c = (float *)malloc(size); for (int i = 0; i < n; i++) { float af = rand() / double(RAND_MAX); float bf = rand() / double(RAND_MAX); a[i] = af; b[i] = bf; } struct timeval t1, t2; gettimeofday(&t1, NULL); vecAdd(a, b, c, n); gettimeofday(&t2, NULL); //for (int i = 0; i < 10; i++) // cout << vecA[i] << " " << vecB[i] << " " << vecC[i] << endl; double timeuse = (t2.tv_sec - t1.tv_sec) + (double)(t2.tv_usec - t1.tv_usec)/1000000.0; cout << timeuse << endl; free(a); free(b); free(c); return 0; }