1 | /*************************************************************************** |
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2 | * blitz/benchext.h BenchmarkExt classes (Benchmarks with external |
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3 | * control) |
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4 | * |
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5 | * Copyright (C) 1997-2001 Todd Veldhuizen <tveldhui@oonumerics.org> |
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6 | * |
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7 | * This program is free software; you can redistribute it and/or |
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8 | * modify it under the terms of the GNU General Public License |
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9 | * as published by the Free Software Foundation; either version 2 |
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10 | * of the License, or (at your option) any later version. |
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11 | * |
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12 | * This program is distributed in the hope that it will be useful, |
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 | * GNU General Public License for more details. |
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16 | * |
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17 | * Suggestions: blitz-dev@oonumerics.org |
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18 | * Bugs: blitz-bugs@oonumerics.org |
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19 | * |
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20 | * For more information, please see the Blitz++ Home Page: |
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21 | * http://oonumerics.org/blitz/ |
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22 | * |
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23 | ***************************************************************************/ |
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24 | |
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25 | #ifndef BZ_BENCHEXT_H |
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26 | #define BZ_BENCHEXT_H |
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27 | |
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28 | #ifndef BZ_MATRIX_H |
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29 | #include <blitz/matrix.h> |
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30 | #endif |
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31 | |
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32 | #ifndef BZ_TIMER_H |
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33 | #include <blitz/timer.h> |
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34 | #endif |
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35 | |
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36 | #include <math.h> |
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37 | |
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38 | // NEEDS_WORK: replace use of const char* with <string>, once standard |
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39 | // library is widely supported. |
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40 | |
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41 | BZ_NAMESPACE(blitz) |
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42 | |
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43 | // Declaration of class BenchmarkExt<T> |
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44 | // The template parameter T is the parameter type which is varied in |
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45 | // the benchmark. Typically T will be an unsigned, and will represent |
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46 | // the length of a vector, size of an array, etc. |
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47 | |
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48 | template<typename P_parameter = unsigned> |
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49 | class BenchmarkExt { |
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50 | |
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51 | public: |
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52 | typedef P_parameter T_parameter; |
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53 | |
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54 | BenchmarkExt(const char* description, int numImplementations); |
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55 | |
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56 | ~BenchmarkExt(); |
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57 | |
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58 | void setNumParameters(int numParameters); |
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59 | void setParameterVector(Vector<T_parameter> parms); |
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60 | void setParameterDescription(const char* string); |
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61 | void setIterations(Vector<long> iters); |
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62 | void setFlopsPerIteration(Vector<double> flopsPerIteration); |
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63 | void setRateDescription(const char* string); |
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64 | |
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65 | void beginBenchmarking(); |
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66 | |
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67 | void beginImplementation(const char* description); |
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68 | |
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69 | bool doneImplementationBenchmark() const; |
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70 | |
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71 | T_parameter getParameter() const; |
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72 | long getIterations() const; |
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73 | |
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74 | inline void start(); |
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75 | inline void stop(); |
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76 | |
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77 | void startOverhead(); |
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78 | void stopOverhead(); |
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79 | |
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80 | void endImplementation(); |
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81 | |
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82 | void endBenchmarking(); |
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83 | |
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84 | double getMflops(unsigned implementation, unsigned parameterNum) const; |
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85 | |
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86 | void saveMatlabGraph(const char* filename, const char* graphType="semilogx") const; |
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87 | |
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88 | protected: |
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89 | BenchmarkExt(const BenchmarkExt<P_parameter>&) { } |
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90 | void operator=(const BenchmarkExt<P_parameter>&) { } |
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91 | |
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92 | enum { initializing, benchmarking, benchmarkingImplementation, |
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93 | running, runningOverhead, done } state_; |
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94 | |
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95 | unsigned numImplementations_; |
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96 | unsigned implementationNumber_; |
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97 | |
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98 | const char* description_; |
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99 | Vector<const char*> implementationDescriptions_; |
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100 | |
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101 | Matrix<double,RowMajor> times_; // Elapsed time |
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102 | |
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103 | Vector<T_parameter> parameters_; |
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104 | Vector<long> iterations_; |
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105 | Vector<double> flopsPerIteration_; |
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106 | |
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107 | Timer timer_; |
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108 | Timer overheadTimer_; |
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109 | |
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110 | const char* parameterDescription_; |
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111 | const char* rateDescription_; |
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112 | |
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113 | unsigned numParameters_; |
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114 | unsigned parameterNumber_; |
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115 | }; |
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116 | |
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117 | BZ_NAMESPACE_END |
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118 | |
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119 | #include <blitz/benchext.cc> |
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120 | |
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121 | #endif // BZ_BENCHEXT_H |
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