chundoong-lab-ta/APWS23/sum-reduction/util.cpp

#include "util.h"

#include <math.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

double get_current_time() {
  struct timespec tv;
  clock_gettime(CLOCK_MONOTONIC, &tv);
  return tv.tv_sec + tv.tv_nsec * 1e-9;
}

void rand_vec(double *m, int N) {
  for (int j = 0; j < N; j++) { m[j] = (double) rand() / RAND_MAX - 0.5; }
}