1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | |
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27 | #include "globals.hh" |
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28 | #include "G4ios.hh" |
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29 | #include "G4Timer.hh" |
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30 | #include "G4Pow.hh" |
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31 | |
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32 | #include <fstream> |
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33 | #include <string> |
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34 | #include <iostream> |
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35 | #include <sstream> |
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36 | #include <iomanip> |
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37 | |
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38 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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39 | |
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40 | int main(int argc, char** argv) |
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41 | { |
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42 | if(argc < 2) { |
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43 | G4cout << "Name is not specified! Exit" << G4endl; |
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44 | exit(1); |
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45 | } |
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46 | |
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47 | G4double onethird = 1.0/3.0; |
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48 | G4int zmax = 255; |
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49 | const G4int n = 2551; |
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50 | G4int nn = 10000; |
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51 | |
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52 | G4cout.setf( std::ios::scientific, std::ios::floatfield ); |
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53 | |
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54 | G4cout << "Loop Z = 1-256 over " << n << " points in " << nn << " seria " << G4endl; |
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55 | G4cout << "Time comparison of G4Pow calculation of " << argv[1] << G4endl; |
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56 | |
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57 | G4int i, j; |
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58 | G4double x[n]; |
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59 | G4double y[n]; |
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60 | G4double z[n]; |
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61 | |
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62 | G4double del = G4double(zmax)/G4double(n-1); |
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63 | G4double t = 0.5; |
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64 | for (i=0; i<n; i++) { |
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65 | x[i] = t; |
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66 | t += del; |
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67 | } |
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68 | |
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69 | G4Pow* power = G4Pow::GetInstance(); |
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70 | G4Timer* timer1 = new G4Timer(); |
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71 | |
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72 | timer1->Start(); |
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73 | for(j=0; j<nn; j++) { |
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74 | for (i=0; i<n; i++) { |
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75 | t = x[i]; |
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76 | //y[i] = power->A13(t); |
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77 | // y[i] = power->A23(t); |
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78 | y[i] = power->logA(t); |
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79 | } |
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80 | } |
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81 | |
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82 | timer1->Stop(); |
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83 | G4cout << "======= G4pow "; |
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84 | G4cout << *timer1 << std::endl; |
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85 | |
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86 | timer1->Start(); |
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87 | for(j=0; j<nn; j++) { |
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88 | for (i=0; i<n; i++) { |
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89 | t = x[i]; |
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90 | //z[i] = std::pow(t,onethird); |
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91 | z[i] = std::log(t); |
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92 | // G4cout << "d[" << x << "] = " << d << G4endl; |
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93 | } |
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94 | } |
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95 | |
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96 | timer1->Stop(); |
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97 | G4cout << std::endl; |
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98 | G4cout << "======= std: "; |
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99 | G4cout << *timer1 << std::endl; |
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100 | |
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101 | nn *= 10; |
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102 | |
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103 | timer1->Start(); |
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104 | for(j=0; j<nn; j++) { |
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105 | for (i=1; i<256; i++) { |
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106 | //y[i] = power->Z13(i); |
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107 | // y[i] = power->Z23(i); |
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108 | y[i] = power->logZ(i); |
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109 | } |
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110 | } |
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111 | |
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112 | timer1->Stop(); |
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113 | G4cout << std::endl; |
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114 | G4cout << "======= G4pow Z "; |
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115 | G4cout << *timer1 << std::endl; |
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116 | |
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117 | timer1->Start(); |
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118 | for(j=0; j<nn; j++) { |
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119 | for (i=1; i<256; i++) { |
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120 | //z[i] = std::pow(G4double(i),onethird); |
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121 | z[i] = std::log(G4double(i)); |
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122 | // G4cout << "d[" << x << "] = " << d << G4endl; |
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123 | } |
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124 | } |
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125 | |
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126 | timer1->Stop(); |
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127 | G4cout << std::endl; |
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128 | G4cout << "======= std: "; |
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129 | G4cout << *timer1 << std::endl; |
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130 | |
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131 | delete timer1; |
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132 | return 0; |
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133 | } |
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134 | |
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135 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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