src/Tuner/searchtuner.cc

   1 #include "searchtuner.h"
   2 #include <iostream>
   3 #include <fstream>
   4 using namespace std;
   5
   6 TunableSetting::TunableSetting(VarType _type, TunableParam _param) :
   7         hasVar(true),
   8         type1(_type),
   9         type2(0),
  10         param(_param) {
  11 }
  12
  13 TunableSetting::TunableSetting(VarType _type1, VarType _type2, TunableParam _param) :
  14         hasVar(true),
  15         type1(_type1),
  16         type2(_type2),
  17         param(_param) {
  18 }
  19
  20 TunableSetting::TunableSetting(TunableParam _param) :
  21         hasVar(false),
  22         type1(0),
  23         type2(0),
  24         param(_param) {
  25 }
  26
  27 TunableSetting::TunableSetting(TunableSetting *ts) :
  28         hasVar(ts->hasVar),
  29         type1(ts->type1),
  30         type2(ts->type2),
  31         param(ts->param),
  32         lowValue(ts->lowValue),
  33         highValue(ts->highValue),
  34         defaultValue(ts->defaultValue),
  35         selectedValue(ts->selectedValue)
  36 {
  37 }
  38
  39 void TunableSetting::setDecision(int _low, int _high, int _default, int _selection) {
  40         lowValue = _low;
  41         highValue = _high;
  42         defaultValue = _default;
  43         selectedValue = _selection;
  44 }
  45
  46 void TunableSetting::print() {
  47         model_print("Param %s = %u \t range=[%u,%u]", tunableParameterToString( (Tunables)param), selectedValue, lowValue, highValue);
  48         if (hasVar) {
  49                 model_print("\tVarType1 %" PRIu64 ", ", type1);
  50                 model_print("VarType2 %" PRIu64 ", ", type2);
  51         }
  52         model_print("\n");
  53 }
  54
  55 unsigned int tunableSettingHash(TunableSetting *setting) {
  56         return setting->hasVar ^ setting->type1 ^ setting->type2 ^ setting->param;
  57 }
  58
  59 bool tunableSettingEquals(TunableSetting *setting1, TunableSetting *setting2) {
  60         return setting1->hasVar == setting2->hasVar &&
  61                                  setting1->type1 == setting2->type1 &&
  62                                  setting1->type2 == setting2->type2 &&
  63                                  setting1->param == setting2->param;
  64 }
  65
  66 ostream &operator<<(ostream &os, const TunableSetting &ts)
  67 {
  68         os << ts.hasVar << " " << ts.type1 << " " << ts.type2 << " " << ts.param << " " << ts.lowValue << " "
  69                  << ts.highValue << " " << ts.defaultValue << " " << ts.selectedValue;
  70         return os;
  71 }
  72
  73
  74 SearchTuner::SearchTuner() {
  75 }
  76
  77 SearchTuner::SearchTuner(const char *filename) {
  78         ifstream myfile;
  79         myfile.open (filename, ios::in);
  80         if (myfile.is_open()) {
  81                 bool hasVar;
  82                 VarType type1;
  83                 VarType type2;
  84                 TunableParam param;
  85                 int lowValue;
  86                 int highValue;
  87                 int defaultValue;
  88                 int selectedValue;
  89                 while (myfile >> hasVar >> type1 >> type2 >> param >> lowValue >> highValue >> defaultValue >> selectedValue) {
  90                         TunableSetting *setting;
  91
  92                         if (hasVar) {
  93                                 setting = new TunableSetting(type1, type2, param);
  94                         } else {
  95                                 setting = new TunableSetting(param);
  96                         }
  97                         setting->setDecision(lowValue, highValue, defaultValue, selectedValue);
  98                         usedSettings.add(setting);
  99                 }
 100                 myfile.close();
 101         }
 102 }
 103
 104 SearchTuner *SearchTuner::copyUsed() {
 105         SearchTuner *tuner = new SearchTuner();
 106         SetIteratorTunableSetting *iterator = usedSettings.iterator();
 107         while (iterator->hasNext()) {
 108                 TunableSetting *setting = iterator->next();
 109                 TunableSetting *copy = new TunableSetting(setting);
 110                 tuner->settings.add(copy);
 111         }
 112         delete iterator;
 113         return tuner;
 114 }
 115
 116 SearchTuner::~SearchTuner() {
 117         SetIteratorTunableSetting *iterator = settings.iterator();
 118         while (iterator->hasNext()) {
 119                 TunableSetting *setting = iterator->next();
 120                 delete setting;
 121         }
 122         delete iterator;
 123 }
 124
 125 int SearchTuner::getTunable(TunableParam param, TunableDesc *descriptor) {
 126         TunableSetting setting(param);
 127         TunableSetting *result = usedSettings.get(&setting);
 128         if (result == NULL) {
 129                 result = settings.get(&setting);
 130                 if ( result == NULL) {
 131                         result = new TunableSetting(param);
 132                         uint value = descriptor->lowValue + (random() % (1 + descriptor->highValue - descriptor->lowValue));
 133                         result->setDecision(descriptor->lowValue, descriptor->highValue, descriptor->defaultValue, value);
 134                         settings.add(result);
 135                 }
 136                 usedSettings.add(result);
 137         }
 138         return result->selectedValue;
 139 }
 140
 141 int SearchTuner::getVarTunable(VarType vartype, TunableParam param, TunableDesc *descriptor) {
 142         return getVarTunable(vartype, 0, param, descriptor);
 143 }
 144
 145 int SearchTuner::getVarTunable(VarType vartype1, VarType vartype2, TunableParam param, TunableDesc *descriptor) {
 146         TunableSetting setting(vartype1, vartype2, param);
 147         TunableSetting *result = usedSettings.get(&setting);
 148         if (result == NULL) {
 149                 result = settings.get(&setting);
 150                 if ( result == NULL) {
 151                         result = new
 152                                                          TunableSetting(vartype1, vartype2, param);
 153                         uint value = descriptor->lowValue + (random() % (1 + descriptor->highValue - descriptor->lowValue));
 154                         result->setDecision(descriptor->lowValue, descriptor->highValue, descriptor->defaultValue, value);
 155                         settings.add(result);
 156                 }
 157                 usedSettings.add(result);
 158         }
 159         return result->selectedValue;
 160 }
 161
 162 void SearchTuner::randomMutate() {
 163         TunableSetting *randomSetting = settings.getRandomElement();
 164         int range = randomSetting->highValue - randomSetting->lowValue;
 165         int randomchoice = (random() % range) + randomSetting->lowValue;
 166         if (randomchoice < randomSetting->selectedValue)
 167                 randomSetting->selectedValue = randomchoice;
 168         else
 169                 randomSetting->selectedValue = randomchoice + 1;
 170         model_print("&&&&&&&&Mutating&&&&&&&\n");
 171         randomSetting->print();
 172         model_print("&&&&&&&&&&&&&&&&&&&&&&&\n");
 173 }
 174
 175 void SearchTuner::print() {
 176         SetIteratorTunableSetting *iterator = settings.iterator();
 177         while (iterator->hasNext()) {
 178                 TunableSetting *setting = iterator->next();
 179                 setting->print();
 180         }
 181         delete iterator;
 182
 183 }
 184
 185 void SearchTuner::serialize(const char *filename) {
 186         ofstream myfile;
 187         myfile.open (filename, ios::out | ios::trunc);
 188         SetIteratorTunableSetting *iterator = settings.iterator();
 189         while (iterator->hasNext()) {
 190                 TunableSetting *setting = iterator->next();
 191                 myfile << *setting << endl;
 192         }
 193         myfile.close();
 194         delete iterator;
 195 }
 196
 197 void SearchTuner::printUsed() {
 198         SetIteratorTunableSetting *iterator = usedSettings.iterator();
 199         while (iterator->hasNext()) {
 200                 TunableSetting *setting = iterator->next();
 201                 setting->print();
 202         }
 203         delete iterator;
 204 }