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35 lines
700 B
35 lines
700 B
#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <ctime>
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#include <arm_neon.h>
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#define SIZE 1024
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void inArry(float a[]) {
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srand(time(NULL));
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for (int i = 0; i < SIZE; i++)
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{
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a[i] = rand() % 100;
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}
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}
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void vector_add_optimized(float* A, float* B, float* C, int size) {
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for (int i = 0; i < SIZE; i += 4) {
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float32x4_t vecA = vld1q_f32(&A[i]);
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float32x4_t vecB = vld1q_f32(&B[i]);
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float32x4_t vecC = vaddq_f32(vecA, vecB);
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vst1q_f32(&C[i], vecC);
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}
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}
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int main() {
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float A[SIZE], B[SIZE], C[SIZE];
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inArry(A);
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inArry(B);
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clock_t start = clock();
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vector_add_optimized(A, B, C, SIZE);
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clock_t end = clock();
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printf("%f", (double)(end - start) / CLOCKS_PER_SEC);
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}
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