pjc97uv2f 4 days ago
parent 4067bae5d7
commit ed6902cdcc

42
1

@ -0,0 +1,42 @@
#include <stdio.h>
#include <stdlib.h>
#include <ctime>
#define SIZE 1024
// the add function
void vector_add(float* A, float* B, float* C, int size) {
for (int i = 0; i < size; i++) {
C[i] = A[i] + B[i];
}
}
int main() {
// define the size
float A[SIZE];
float B[SIZE];
float C[SIZE];
// use 'for' to random
for (int i = 0; i < SIZE; i++) {
A[i] = (float)(rand() % 100);
B[i] = (float)(rand() % 100);
}
clock_t start_time, end_time;
// get the start time
start_time = clock();
// use the function
vector_add(A, B, C, SIZE);
// get the end time
end_time = clock();
// get the time and transform to secound
double elapsed_time = ((double)(end_time - start_time)) / CLOCKS_PER_SEC;
printf("基础向量加法的运行时间:%f 秒\n", elapsed_time);
return 0;
}
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