1 #include "randomtuner.h"
3 #include "searchtuner.h"
4 #include "multituner.h"
15 RandomTuner::RandomTuner(uint _budget, uint _timeout) :
16 budget(_budget), timeout(_timeout), execnum(0) {
19 RandomTuner::~RandomTuner() {
20 for (uint i = 0; i < problems.getSize(); i++)
21 ourfree(problems.get(i));
22 for (uint i = 0; i < allTuners.getSize(); i++)
23 delete allTuners.get(i);
26 void RandomTuner::addProblem(const char *filename) {
27 Problem *p = new Problem(filename);
28 p->problemnumber = problems.getSize();
32 void RandomTuner::printData() {
33 model_print("*********** DATA DUMP ***********\n");
34 for (uint i = 0; i < allTuners.getSize(); i++) {
35 TunerRecord *tuner = allTuners.get(i);
36 SearchTuner *stun = tuner->getTuner();
37 model_print("Tuner %u\n", i);
39 model_print("----------------------------------\n\n\n");
40 for (uint j = 0; j < tuner->problems.getSize(); j++) {
41 Problem *problem = tuner->problems.get(j);
42 model_print("Problem %s\n", problem->getProblem());
43 model_print("Time = %lld\n", tuner->getTime(problem));
48 bool RandomTuner::tunerExists(SearchTuner *tuner){
49 for(uint i=0; i< explored.getSize(); i++){
50 if(explored.get(i)->getTuner()->equalUsed(tuner))
56 void RandomTuner::addTuner(SearchTuner *tuner) {
57 TunerRecord *t = new TunerRecord(tuner);
59 t->tunernumber = allTuners.getSize();
63 long long RandomTuner::evaluate(Problem *problem, TunerRecord *tuner) {
66 snprintf(buffer, sizeof(buffer), "problem%u", execnum);
69 myfile.open (buffer, ios::out);
72 if (myfile.is_open()) {
73 myfile << problem->getProblem() << endl;
74 myfile << problem->problemnumber << endl;
80 snprintf(buffer, sizeof(buffer), "tunernum%u", execnum);
83 myfile.open (buffer, ios::out);
86 if (myfile.is_open()) {
87 myfile << tuner->tunernumber << endl;
93 snprintf(buffer, sizeof(buffer), "tuner%u", execnum);
94 tuner->getTuner()->serialize(buffer);
97 uint timeinsecs = problem->besttime / NANOSEC;
98 uint adaptive = (timeinsecs > 30) ? timeinsecs * 5 : 150;
99 uint maxtime = (adaptive < timeout) ? adaptive : timeout;
102 snprintf(buffer, sizeof(buffer), "./run.sh deserializerun %s %u tuner%u result%u > log%u", problem->getProblem(), maxtime, execnum, execnum, execnum);
103 int status = system(buffer);
105 long long metric = -1;
106 int sat = IS_INDETER;
109 //Read data in from results file
110 snprintf(buffer, sizeof(buffer), "result%u", execnum);
113 myfile.open (buffer, ios::in);
116 if (myfile.is_open()) {
121 updateTimeout(problem, metric);
122 snprintf(buffer, sizeof(buffer), "tuner%uused", execnum);
123 tuner->getTuner()->addUsed(buffer);
125 //Increment execution count
128 if (problem->result == UNSETVALUE && sat != IS_INDETER) {
129 problem->result = sat;
130 } else if (problem->result != sat && sat != IS_INDETER) {
131 model_print("******** Result has changed ********\n");
133 if (sat == IS_INDETER && metric != -1) {//The case when we have a timeout
139 void RandomTuner::updateTimeout(Problem *problem, long long metric) {
140 if (metric < problem->besttime) {
141 problem->besttime = metric;
145 void RandomTuner::tune() {
146 for (uint r = 0; r < budget; r++) {
147 model_print("Round %u of %u\n", r, budget);
148 for (uint i = 0; i < tuners.getSize(); i++){
149 TunerRecord *tuner = tuners.get(i);
151 for (uint j = 0; j < problems.getSize(); j++){
152 Problem *problem = problems.get(j);
153 long long metric = tuner->getTime(problem);
155 metric = evaluate(problem, tuner);
156 ASSERT(tuner->getTime(problem) == -1);
157 tuner->problems.push(problem);
158 model_print("%u.Problem<%s>\tTuner<%p, %d>\tMetric<%lld>\n", i, problem->problem,tuner, tuner->tunernumber, metric);
160 tuner->setTime(problem, metric);
162 tuner->setTime(problem, -2);
163 if(tunerExists(tuner->getTuner())){
164 //Solving the first problem and noticing the tuner
172 explored.push(tuner);
176 uint tSize = tuners.getSize();
177 for (uint i = 0; i < tSize; i++) {
178 SearchTuner *tmpTuner = mutateTuner(tuners.get(i)->getTuner(), budget);
179 while(subtuneIndex(tmpTuner) != -1){
180 tmpTuner->randomMutate();
182 TunerRecord *tmp = new TunerRecord(tmpTuner);
183 tmp->tunernumber = allTuners.getSize();
184 model_print("Mutated tuner %u to generate tuner %u\n", tuners.get(i)->tunernumber, tmp->tunernumber);
193 SearchTuner *RandomTuner::mutateTuner(SearchTuner *oldTuner, uint k) {
194 SearchTuner *newTuner = oldTuner->copyUsed();
195 uint numSettings = oldTuner->getSize();
196 uint settingsToMutate = (uint)(AUTOTUNERFACTOR * (((double)numSettings) * (budget - k)) / (budget));
197 if (settingsToMutate < 1)
198 settingsToMutate = 1;
199 model_print("Mutating %u settings\n", settingsToMutate);
200 while (settingsToMutate-- != 0) {
201 newTuner->randomMutate();
206 int RandomTuner::subtuneIndex(SearchTuner *newTuner){
207 for (uint i=0; i< explored.getSize(); i++){
208 SearchTuner *tuner = explored.get(i)->getTuner();
209 if(tuner->isSubTunerof(newTuner)){