1 | // -*- C++ -*- |
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2 | /*************************************************************************** |
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3 | * blitz/benchext.h BenchmarkExt classes (Benchmarks with external |
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4 | * control) |
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5 | * |
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6 | * $Id$ |
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7 | * |
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8 | * Copyright (C) 1997-2011 Todd Veldhuizen <tveldhui@acm.org> |
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9 | * |
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10 | * This file is a part of Blitz. |
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11 | * |
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12 | * Blitz is free software: you can redistribute it and/or modify |
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13 | * it under the terms of the GNU Lesser General Public License |
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14 | * as published by the Free Software Foundation, either version 3 |
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15 | * of the License, or (at your option) any later version. |
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16 | * |
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17 | * Blitz is distributed in the hope that it will be useful, |
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18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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20 | * GNU Lesser General Public License for more details. |
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21 | * |
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22 | * You should have received a copy of the GNU Lesser General Public |
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23 | * License along with Blitz. If not, see <http://www.gnu.org/licenses/>. |
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24 | * |
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25 | * Suggestions: blitz-devel@lists.sourceforge.net |
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26 | * Bugs: blitz-support@lists.sourceforge.net |
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27 | * |
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28 | * For more information, please see the Blitz++ Home Page: |
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29 | * https://sourceforge.net/projects/blitz/ |
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30 | * |
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31 | ***************************************************************************/ |
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32 | |
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33 | #ifndef BZ_BENCHEXT_H |
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34 | #define BZ_BENCHEXT_H |
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35 | |
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36 | //#ifndef BZ_MATRIX_H |
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37 | #include <blitz/array.h> |
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38 | //#endif |
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39 | #include <vector> |
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40 | |
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41 | #ifndef BZ_TIMER_H |
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42 | #include <blitz/timer.h> |
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43 | #endif |
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44 | |
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45 | #include <math.h> |
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46 | #include <string> |
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47 | |
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48 | // NEEDS_WORK: replace use of const char* with <string>, once standard |
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49 | // library is widely supported. |
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50 | |
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51 | BZ_NAMESPACE(blitz) |
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52 | |
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53 | // Declaration of class BenchmarkExt<T> |
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54 | // The template parameter T is the parameter type which is varied in |
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55 | // the benchmark. Typically T will be an unsigned, and will represent |
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56 | // the length of a vector, size of an array, etc. |
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57 | |
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58 | template<typename P_parameter = unsigned> |
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59 | class BenchmarkExt { |
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60 | |
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61 | public: |
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62 | typedef P_parameter T_parameter; |
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63 | |
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64 | BenchmarkExt(const char* description, int numImplementations); |
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65 | |
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66 | ~BenchmarkExt(); |
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67 | |
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68 | void setNumParameters(int numParameters); |
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69 | void setParameterVector(Array<T_parameter,1> parms); |
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70 | void setParameterDescription(const char* string); |
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71 | void setIterations(Array<long,1> iters); |
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72 | void setOpsPerIteration(Array<double,1> flopsPerIteration); |
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73 | void setDependentVariable(const char* string); |
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74 | |
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75 | void beginBenchmarking(); |
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76 | |
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77 | void beginImplementation(const char* description); |
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78 | bool doneImplementationBenchmark() const; |
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79 | const string& currentImplementation() const; |
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80 | |
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81 | T_parameter getParameter() const; |
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82 | long getIterations() const; |
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83 | |
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84 | inline void start(); |
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85 | inline void stop(); |
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86 | |
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87 | void startOverhead(); |
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88 | void stopOverhead(); |
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89 | void skip(); |
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90 | |
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91 | |
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92 | void endImplementation(); |
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93 | |
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94 | void endBenchmarking(); |
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95 | double getMflops(unsigned implementation, unsigned parameterNum) const; |
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96 | double getinstrperc(int implementation, int parameterNum) const; |
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97 | double getflopsperc(int implementation, int parameterNum) const; |
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98 | |
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99 | void saveMatlabGraph(const char* filename, const char* graphType="semilogx") const; |
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100 | void savePylabGraph(const char* filename, const char* graphType="semilogx") const; |
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101 | |
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102 | protected: |
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103 | BenchmarkExt(const BenchmarkExt<P_parameter>&) { } |
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104 | void operator=(const BenchmarkExt<P_parameter>&) { } |
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105 | |
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106 | enum { initializing, benchmarking, benchmarkingImplementation, |
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107 | running, runningOverhead, done } state_; |
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108 | |
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109 | unsigned numImplementations_; |
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110 | unsigned implementationNumber_; |
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111 | |
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112 | std::string description_; |
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113 | std::vector<std::string> implementationDescriptions_; |
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114 | |
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115 | Array<double,2> times_; // Elapsed time |
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116 | Array<long long,2> instr_; // instructions according to timer |
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117 | Array<long long,2> flops_; // flops according to timer |
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118 | |
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119 | Array<T_parameter,1> parameters_; |
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120 | Array<long,1> iterations_; |
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121 | Array<double,1> flopsPerIteration_; |
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122 | |
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123 | Timer timer_; |
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124 | |
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125 | std::string parameterDescription_; |
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126 | std::string depvar_; |
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127 | double timerconversion_; |
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128 | |
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129 | unsigned numParameters_; |
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130 | unsigned parameterNumber_; |
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131 | }; |
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132 | |
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133 | BZ_NAMESPACE_END |
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134 | |
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135 | #include <blitz/benchext.cc> |
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136 | |
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137 | #endif // BZ_BENCHEXT_H |
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