benchmark/radix_sort-bench.cc
author deba
Fri, 27 Jan 2006 08:19:42 +0000
changeset 1914 7ef30a71937f
child 1956 a055123339d5
permissions -rw-r--r--
Doc bug fix
deba@1833
     1
#define NDEBUG
deba@1833
     2
deba@1833
     3
#include <lemon/time_measure.h>
deba@1833
     4
#include <lemon/smart_graph.h>
deba@1833
     5
#include <lemon/graph_utils.h>
deba@1833
     6
#include <lemon/maps.h>
deba@1833
     7
#include <lemon/error.h>
deba@1833
     8
deba@1833
     9
#include <lemon/radix_sort.h>
deba@1833
    10
deba@1833
    11
#include <vector>
deba@1833
    12
#include <algorithm>
deba@1833
    13
#include <cmath>
deba@1833
    14
deba@1833
    15
using namespace std;
deba@1833
    16
using namespace lemon;
deba@1833
    17
deba@1833
    18
void testRadixSort() {
deba@1833
    19
  int n = 10000000;
deba@1833
    20
  vector<int> data(n);
deba@1833
    21
  for (int i = 0; i < n; ++i) {
deba@1833
    22
    data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500;
deba@1833
    23
  }
deba@1833
    24
  radixSort(data.begin(), data.end());
deba@1833
    25
}
deba@1833
    26
deba@1833
    27
deba@1833
    28
void testCounterSort() {
deba@1833
    29
  int n = 10000000;
deba@1833
    30
  vector<int> data(n);
deba@1833
    31
  for (int i = 0; i < n; ++i) {
deba@1833
    32
    data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500;
deba@1833
    33
  }
deba@1833
    34
  counterSort(data.begin(), data.end());
deba@1833
    35
}
deba@1833
    36
deba@1833
    37
void testSort() {
deba@1833
    38
  int n = 10000000;
deba@1833
    39
  vector<int> data(n);
deba@1833
    40
  for (int i = 0; i < n; ++i) {
deba@1833
    41
    data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500;
deba@1833
    42
  }
deba@1833
    43
  sort(data.begin(), data.end());
deba@1833
    44
}
deba@1833
    45
deba@1833
    46
void testStableSort() {
deba@1833
    47
  int n = 10000000;
deba@1833
    48
  vector<int> data(n);
deba@1833
    49
  for (int i = 0; i < n; ++i) {
deba@1833
    50
    data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500;
deba@1833
    51
  }
deba@1833
    52
  stable_sort(data.begin(), data.end());
deba@1833
    53
}
deba@1833
    54
deba@1833
    55
void testSorts() {
deba@1833
    56
  {
deba@1833
    57
    int n = 10000000;
deba@1833
    58
    vector<int> data(n);
deba@1833
    59
  }
deba@1833
    60
  cout << "Radix sort: " << runningTimeTest(testRadixSort, 60) << endl;
deba@1833
    61
  cout << "Counter sort: " << runningTimeTest(testCounterSort, 60) << endl;
deba@1833
    62
  cout << "Standard sort: " << runningTimeTest(testSort, 60) << endl;
deba@1833
    63
  cout << "Stable sort: " << runningTimeTest(testStableSort, 60) << endl;
deba@1833
    64
}
deba@1833
    65
deba@1833
    66
deba@1833
    67
int main() {
deba@1833
    68
  testSorts();
deba@1833
    69
  return 0;
deba@1833
    70
}