1 | #include <iostream> |
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2 | using namespace std; |
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3 | #include <chrono> |
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4 | using namespace chrono; |
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5 | |
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6 | #include "caf/actor_ostream.hpp" |
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7 | #include "caf/caf_main.hpp" |
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8 | #include "caf/event_based_actor.hpp" |
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9 | using namespace caf; |
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10 | |
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11 | int Actors = 40'000, Set = 100, Rounds = 400, Processors = 1, Batch = 1, Factor = 40; // ' default values |
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12 | time_point<steady_clock> starttime; |
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13 | actor * actors; |
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14 | int actorCnt = 0; |
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15 | |
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16 | class Executor : public event_based_actor { |
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17 | static int ids; // unique actor id generator |
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18 | actor * gstart; |
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19 | int id, rounds, group, recs = 0, sends = 0; |
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20 | |
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21 | behavior make_behavior() override { |
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22 | return { |
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23 | [=]( int & ) -> void { |
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24 | if ( recs == rounds ) { |
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25 | if ( __atomic_add_fetch( &actorCnt, 1, __ATOMIC_SEQ_CST ) == Actors ) { |
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26 | aout(this) << (steady_clock::now() - starttime).count() * Factor / 1'000'000'000.0 << endl; |
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27 | } // if |
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28 | this->quit(); |
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29 | return; |
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30 | } // if |
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31 | if ( recs % Batch == 0 ) { |
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32 | for ( int i = 0; i < Batch; i += 1 ) { |
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33 | this->send( gstart[sends % Set], 0 ); // cycle through group |
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34 | sends += 1; |
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35 | } |
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36 | } |
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37 | //aout(this) << id << " " << cnt << endl; |
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38 | recs += 1; |
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39 | } |
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40 | }; |
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41 | } |
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42 | public: |
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43 | Executor( caf::actor_config & cfg ) : event_based_actor( cfg ) { |
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44 | id = ids++; // unique actor id, and start point for cycle |
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45 | gstart = &actors[id / Set * Set]; // remember group-start array-element |
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46 | rounds = Set * Rounds; // send at least one message to each group member |
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47 | // aout(this) << "id " << id << " rounds " << rounds << " group " << group << endl; |
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48 | } |
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49 | }; // Executor |
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50 | int Executor::ids = 0; |
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51 | |
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52 | void caf_main( actor_system & sys ) { |
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53 | for ( int i = 0; i < Actors; i += 1 ) { // create actors |
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54 | actors[i] = sys.spawn<Executor>(); |
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55 | } // for |
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56 | starttime = steady_clock::now(); |
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57 | for ( int i = 0; i < Actors; i += 1 ) { // start actors |
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58 | caf::anon_send( actors[i], 0 ); |
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59 | } // for |
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60 | } // caf_main |
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61 | |
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62 | int main( int argc, char * argv[] ) { |
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63 | switch ( argc ) { |
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64 | case 7: |
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65 | if ( strcmp( argv[6], "d" ) != 0 ) { // default ? |
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66 | Factor = stoi( argv[6] ); |
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67 | if ( Factor < 1 ) goto Usage; |
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68 | } // if |
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69 | case 6: |
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70 | if ( strcmp( argv[5], "d" ) != 0 ) { // default ? |
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71 | Batch = stoi( argv[5] ); |
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72 | if ( Batch < 1 ) goto Usage; |
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73 | } // if |
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74 | case 5: |
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75 | if ( strcmp( argv[4], "d" ) != 0 ) { // default ? |
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76 | Processors = stoi( argv[4] ); |
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77 | if ( Processors < 1 ) goto Usage; |
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78 | } // if |
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79 | case 4: |
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80 | if ( strcmp( argv[3], "d" ) != 0 ) { // default ? |
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81 | Rounds = stoi( argv[3] ); |
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82 | if ( Rounds < 1 ) goto Usage; |
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83 | } // if |
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84 | case 3: |
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85 | if ( strcmp( argv[2], "d" ) != 0 ) { // default ? |
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86 | Set = stoi( argv[2] ); |
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87 | if ( Set < 1 ) goto Usage; |
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88 | } // if |
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89 | case 2: |
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90 | if ( strcmp( argv[1], "d" ) != 0 ) { // default ? |
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91 | Actors = stoi( argv[1] ); |
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92 | if ( Actors < 1 || Actors <= Set || Actors % Set != 0 ) goto Usage; |
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93 | } // if |
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94 | case 1: // use defaults |
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95 | break; |
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96 | default: |
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97 | Usage: |
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98 | cerr << "Usage: " << argv[0] |
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99 | << " [ actors (> 0 && > set && actors % set == 0 ) | 'd' (default " << Actors |
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100 | << ") ] [ set (> 0) | 'd' (default " << Set |
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101 | << ") ] [ rounds (> 0) | 'd' (default " << Rounds |
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102 | << ") ] [ processors (> 0) | 'd' (default " << Processors |
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103 | << ") ] [ batch (> 0) | 'd' (default " << Batch |
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104 | << ") ]" << endl; |
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105 | exit( EXIT_FAILURE ); |
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106 | } // switch |
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107 | |
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108 | Rounds = Rounds / Factor; |
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109 | |
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110 | //cout << Actors << " " << Set << " " << Rounds << " " << Processors << endl; |
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111 | actors = new actor[Actors]; |
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112 | |
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113 | caf::core::init_global_meta_objects(); |
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114 | caf::exec_main_init_meta_objects<>(); |
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115 | |
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116 | caf::actor_system_config cfg; |
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117 | cfg.set( "caf.scheduler.max-threads", Processors ); |
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118 | caf::actor_system system { cfg }; |
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119 | |
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120 | return caf::exec_main<>(caf_main, argc, argv); |
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121 | } // main |
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122 | //CAF_MAIN() |
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123 | |
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124 | // /usr/bin/time -f "%Uu %Ss %Er %Mkb" a.out |
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125 | |
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126 | // Local Variables: // |
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127 | // compile-command: "g++-10 -Wall -O3 -std=c++17 -ICAF/actor-framework/libcaf_core -ICAF/actor-framework/libcaf_core/caf -ICAF/actor-framework/build/libcaf_core -LCAF/actor-framework/build/libcaf_core -LCAF/actor-framework/build/libcaf_io CAFExecutor.cpp -lcaf_io -lcaf_core -Wl,-rpath=CAF/actor-framework/build/libcaf_core" // |
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128 | // End: // |
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