benchmark/radix_sort-bench.cc
author deba
Wed, 01 Mar 2006 10:17:25 +0000
changeset 1990 15fb7a4ea6be
parent 1833 6d107b0b6b46
child 2242 16523135943d
permissions -rw-r--r--
Some classes assumed that the GraphMaps should be inherited
from an ObserverBase. These classes parents replaced with
DefaultMap which cause that the graph maps should not be
inherited from the ObserverBase.
     1 /* -*- C++ -*-
     2  *
     3  * This file is a part of LEMON, a generic C++ optimization library
     4  *
     5  * Copyright (C) 2003-2006
     6  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
     7  * (Egervary Research Group on Combinatorial Optimization, EGRES).
     8  *
     9  * Permission to use, modify and distribute this software is granted
    10  * provided that this copyright notice appears in all copies. For
    11  * precise terms see the accompanying LICENSE file.
    12  *
    13  * This software is provided "AS IS" with no warranty of any kind,
    14  * express or implied, and with no claim as to its suitability for any
    15  * purpose.
    16  *
    17  */
    18 
    19 #define NDEBUG
    20 
    21 #include <lemon/time_measure.h>
    22 #include <lemon/smart_graph.h>
    23 #include <lemon/graph_utils.h>
    24 #include <lemon/maps.h>
    25 #include <lemon/error.h>
    26 
    27 #include <lemon/radix_sort.h>
    28 
    29 #include <vector>
    30 #include <algorithm>
    31 #include <cmath>
    32 
    33 using namespace std;
    34 using namespace lemon;
    35 
    36 void testRadixSort() {
    37   int n = 10000000;
    38   vector<int> data(n);
    39   for (int i = 0; i < n; ++i) {
    40     data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500;
    41   }
    42   radixSort(data.begin(), data.end());
    43 }
    44 
    45 
    46 void testCounterSort() {
    47   int n = 10000000;
    48   vector<int> data(n);
    49   for (int i = 0; i < n; ++i) {
    50     data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500;
    51   }
    52   counterSort(data.begin(), data.end());
    53 }
    54 
    55 void testSort() {
    56   int n = 10000000;
    57   vector<int> data(n);
    58   for (int i = 0; i < n; ++i) {
    59     data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500;
    60   }
    61   sort(data.begin(), data.end());
    62 }
    63 
    64 void testStableSort() {
    65   int n = 10000000;
    66   vector<int> data(n);
    67   for (int i = 0; i < n; ++i) {
    68     data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500;
    69   }
    70   stable_sort(data.begin(), data.end());
    71 }
    72 
    73 void testSorts() {
    74   {
    75     int n = 10000000;
    76     vector<int> data(n);
    77   }
    78   cout << "Radix sort: " << runningTimeTest(testRadixSort, 60) << endl;
    79   cout << "Counter sort: " << runningTimeTest(testCounterSort, 60) << endl;
    80   cout << "Standard sort: " << runningTimeTest(testSort, 60) << endl;
    81   cout << "Stable sort: " << runningTimeTest(testStableSort, 60) << endl;
    82 }
    83 
    84 
    85 int main() {
    86   testSorts();
    87   return 0;
    88 }