#include <string.h>
#include <iostream>
#include <fstream>
-
+#include <limits>
#define UNSETVALUE -1
-#define TIMEOUTSEC 5000
-Problem::Problem(const char *_problem) : result(UNSETVALUE) {
+Problem::Problem(const char *_problem) :
+ problemnumber(-1),
+ result(UNSETVALUE),
+ besttime(LLONG_MAX)
+{
uint len = strlen(_problem);
problem = (char *) ourmalloc(len + 1);
memcpy(problem, _problem, len + 1);
ourfree(problem);
}
-MultiTuner::MultiTuner(uint _budget, uint _timeout) :
- budget(_budget), timeout(_timeout), execnum(0) {
+void TunerRecord::setTime(Problem *problem, long long time) {
+ timetaken.put(problem, time);
+}
+
+long long TunerRecord::getTime(Problem *problem) {
+ if (timetaken.contains(problem))
+ return timetaken.get(problem);
+ else return -1;
+}
+
+TunerRecord *TunerRecord::changeTuner(SearchTuner *_newtuner) {
+ TunerRecord *tr = new TunerRecord(_newtuner);
+ for (uint i = 0; i < problems.getSize(); i++) {
+ tr->problems.push(problems.get(i));
+ }
+ return tr;
+}
+
+MultiTuner::MultiTuner(uint _budget, uint _rounds, uint _timeout) :
+ budget(_budget), rounds(_rounds), timeout(_timeout), execnum(0) {
}
MultiTuner::~MultiTuner() {
for (uint i = 0; i < problems.getSize(); i++)
ourfree(problems.get(i));
+ for (uint i = 0; i < allTuners.getSize(); i++)
+ delete allTuners.get(i);
}
void MultiTuner::addProblem(const char *filename) {
- problems.push(new Problem(filename));
+ Problem *p = new Problem(filename);
+ p->problemnumber = problems.getSize();
+ problems.push(p);
+}
+
+void MultiTuner::printData() {
+ model_print("*********** DATA DUMP ***********\n");
+ for (uint i = 0; i < allTuners.getSize(); i++) {
+ TunerRecord *tuner = allTuners.get(i);
+ SearchTuner *stun = tuner->getTuner();
+ model_print("Tuner %u\n", i);
+ stun->print();
+ model_print("----------------------------------\n\n\n");
+ for (uint j = 0; j < tuner->problems.getSize(); j++) {
+ Problem *problem = tuner->problems.get(j);
+ model_print("Problem %s\n", problem->getProblem());
+ model_print("Time = %lld\n", tuner->getTime(problem));
+ }
+ }
+}
+
+void MultiTuner::findBestThreeTuners() {
+ if(allTuners.getSize() < 3){
+ printData();
+ return;
+ }
+ TunerRecord * bestTuners[3];
+ double score = DBL_MAX;
+ for (uint i = 0; i < allTuners.getSize()-2; i++) {
+ for(uint j=i+1; j< allTuners.getSize()-1; j++){
+ for(uint k=j+1; k<allTuners.getSize(); k++){
+ TunerRecord *tuner1 = allTuners.get(i);
+ TunerRecord *tuner2 = allTuners.get(j);
+ TunerRecord *tuner3 = allTuners.get(k);
+ double mintimes[problems.getSize()];
+ for(uint l=0; l < problems.getSize(); l++){
+ Problem *problem = problems.get(l);
+ mintimes[l] = pow(min(tuner1->getTime(problem), tuner2->getTime(problem), tuner3->getTime(problem)), (double)1 / problems.getSize());
+ }
+ double result=1;
+ for(uint l=0; l< problems.getSize(); l++){
+ result *= mintimes[l];
+ }
+ if(result < score){
+ score = result;
+ bestTuners[0] = tuner1;
+ bestTuners[1] = tuner2;
+ bestTuners[2] = tuner3;
+ }
+ }
+ }
+ }
+ model_print("Best 3 tuners:\n");
+ for(uint i=0; i<3; i++){
+ TunerRecord * tuner = bestTuners[i];
+ SearchTuner *stun = tuner->getTuner();
+ model_print("Tuner %u\n", tuner->tunernumber);
+ stun->print();
+ for (uint j = 0; j < tuner->problems.getSize(); j++) {
+ Problem *problem = tuner->problems.get(j);
+ model_print("Problem %s\n", problem->getProblem());
+ model_print("Time = %lld\n", tuner->getTime(problem));
+ }
+ model_print("----------------------------------\n\n\n");
+ }
}
void MultiTuner::addTuner(SearchTuner *tuner) {
- tuners.push(new TunerRecord(tuner));
+ TunerRecord *t = new TunerRecord(tuner);
+ tuners.push(t);
+ t->tunernumber = allTuners.getSize();
+ allTuners.push(t);
}
-long long MultiTuner::evaluate(Problem *problem, SearchTuner *tuner) {
+
+void MultiTuner::readData(uint numRuns) {
+ for (uint i = 0; i < numRuns; i++) {
+ ifstream myfile;
+ char buffer[512];
+ uint tunernumber;
+ snprintf(buffer, sizeof(buffer), "tunernum%u", i);
+ myfile.open (buffer, ios::in);
+ myfile >> tunernumber;
+ myfile.close();
+ if (allTuners.getSize() <= tunernumber)
+ allTuners.setSize(tunernumber + 1);
+ if (allTuners.get(tunernumber) == NULL) {
+ snprintf(buffer, sizeof(buffer), "tuner%u", i);
+ allTuners.set(tunernumber, new TunerRecord(new SearchTuner(buffer)));
+ }
+ //Add any new used records
+ snprintf(buffer, sizeof(buffer), "tuner%uused", i);
+ TunerRecord *tuner = allTuners.get(tunernumber);
+ tuner->getTuner()->addUsed(buffer);
+
+ char problemname[512];
+ uint problemnumber;
+ snprintf(buffer, sizeof(buffer), "problem%u", i);
+ myfile.open(buffer, ios::in);
+ myfile.getline(problemname, sizeof(problemname));
+ myfile >> problemnumber;
+ myfile.close();
+ if (problems.getSize() <= problemnumber)
+ problems.setSize(problemnumber + 1);
+ if (problems.get(problemnumber) == NULL)
+ problems.set(problemnumber, new Problem(problemname));
+ Problem *problem = problems.get(problemnumber);
+ long long metric = -1;
+ int sat = IS_INDETER;
+ //Read data in from results file
+ snprintf(buffer, sizeof(buffer), "result%u", i);
+
+ myfile.open (buffer, ios::in);
+
+
+ if (myfile.is_open()) {
+ myfile >> metric;
+ myfile >> sat;
+ myfile.close();
+ }
+ if (problem->result == UNSETVALUE && sat != IS_INDETER) {
+ problem->result = sat;
+ } else if (problem->result != sat && sat != IS_INDETER) {
+ model_print("******** Result has changed ********\n");
+ }
+
+ if (metric != -1) {
+ if (tuner->getTime(problem) == -1)
+ tuner->problems.push(problem);
+ tuner->setTime(problem, metric);
+ }
+
+ }
+
+}
+
+long long MultiTuner::evaluate(Problem *problem, TunerRecord *tuner) {
char buffer[512];
+ {
+ snprintf(buffer, sizeof(buffer), "problem%u", execnum);
+
+ ofstream myfile;
+ myfile.open (buffer, ios::out);
+
+
+ if (myfile.is_open()) {
+ myfile << problem->getProblem() << endl;
+ myfile << problem->problemnumber << endl;
+ myfile.close();
+ }
+ }
+
+ {
+ snprintf(buffer, sizeof(buffer), "tunernum%u", execnum);
+
+ ofstream myfile;
+ myfile.open (buffer, ios::out);
+
+
+ if (myfile.is_open()) {
+ myfile << tuner->tunernumber << endl;
+ myfile.close();
+ }
+ }
+
//Write out the tuner
snprintf(buffer, sizeof(buffer), "tuner%u", execnum);
- tuner->serialize(buffer);
+ tuner->getTuner()->serialize(buffer);
+
+ //compute timeout
+ uint timeinsecs = problem->besttime / NANOSEC;
+ uint adaptive = (timeinsecs > 30) ? timeinsecs * 5 : 150;
+ uint maxtime = (adaptive < timeout) ? adaptive : timeout;
//Do run
- snprintf(buffer, sizeof(buffer), "deserializerun %s %u tuner%u result%s%u", problem->getProblem(), timeout, execnum, problem->getProblem(), execnum);
+ snprintf(buffer, sizeof(buffer), "./run.sh deserializerun %s %u tuner%u result%u > log%u", problem->getProblem(), maxtime, execnum, execnum, execnum);
int status = system(buffer);
long long metric = -1;
int sat = IS_INDETER;
+
if (status == 0) {
//Read data in from results file
- snprintf(buffer, sizeof(buffer), "result%s%u", problem->getProblem(), execnum);
+ snprintf(buffer, sizeof(buffer), "result%u", execnum);
ifstream myfile;
myfile.open (buffer, ios::in);
myfile >> sat;
myfile.close();
}
+ updateTimeout(problem, metric);
+ snprintf(buffer, sizeof(buffer), "tuner%uused", execnum);
+ tuner->getTuner()->addUsed(buffer);
}
//Increment execution count
execnum++;
} else if (problem->result != sat && sat != IS_INDETER) {
model_print("******** Result has changed ********\n");
}
+ if (sat == IS_INDETER && metric != -1) {//The case when we have a timeout
+ metric = -1;
+ }
return metric;
}
-double MultiTuner::evaluateAll(SearchTuner *tuner) {
- double product = 1;
+void MultiTuner::updateTimeout(Problem *problem, long long metric) {
+ if (metric < problem->besttime) {
+ problem->besttime = metric;
+ }
+}
+
+void MultiTuner::tuneComp() {
+ Vector<TunerRecord *> *tunerV = new Vector<TunerRecord *>(&tuners);
+ for (uint b = 0; b < budget; b++) {
+ model_print("Round %u of %u\n", b, budget);
+ uint tSize = tunerV->getSize();
+ for (uint i = 0; i < tSize; i++) {
+ SearchTuner *tmpTuner = mutateTuner(tunerV->get(i)->getTuner(), b);
+ TunerRecord *tmp = new TunerRecord(tmpTuner);
+ tmp->tunernumber = allTuners.getSize();
+ model_print("Mutated tuner %u to generate tuner %u\n", tunerV->get(i)->tunernumber, tmp->tunernumber);
+ allTuners.push(tmp);
+ tunerV->push(tmp);
+ }
+
+ Hashtable<TunerRecord *, int, uint64_t> scores;
+ for (uint i = 0; i < problems.getSize(); i++) {
+ Problem *problem = problems.get(i);
+ Vector<TunerRecord *> places;
+ for (uint j = 0; j < tunerV->getSize(); j++) {
+ TunerRecord *tuner = tunerV->get(j);
+ long long metric = tuner->getTime(problem);
+ if (metric == -1) {
+ metric = evaluate(problem, tuner);
+ if (tuner->getTime(problem) == -1) {
+ tuner->problems.push(problem);
+ }
+ LOG("%u.Problem<%s>\tTuner<%p, %d>\tMetric<%lld>\n", i, problem->problem,tuner, tuner->tunernumber, metric);
+ LOG("*****************************\n");
+ if (metric != -1)
+ tuner->setTime(problem, metric);
+ }
+ if (metric != -1) {
+ uint k = 0;
+ for (; k < places.getSize(); k++) {
+ if (metric < places.get(k)->getTime(problem))
+ break;
+ }
+ LOG("place[%u]=Tuner<%p,%d>\n", k, tuner, tuner->tunernumber);
+ places.insertAt(k, tuner);
+ }
+ }
+ int points = 9;
+ for (uint k = 0; k < places.getSize() && points; k++) {
+ TunerRecord *tuner = places.get(k);
+ int currScore = 0;
+ if (scores.contains(tuner))
+ currScore = scores.get(tuner);
+ currScore += points;
+ LOG("Problem<%s>\tTuner<%p,%d>\tmetric<%d>\n", problem->problem, tuner, tuner->tunernumber, currScore);
+ LOG("**************************\n");
+ scores.put(tuner, currScore);
+ points = points / 3;
+ }
+ }
+ Vector<TunerRecord *> ranking;
+ for (uint i = 0; i < tunerV->getSize(); i++) {
+ TunerRecord *tuner = tunerV->get(i);
+ int score = 0;
+ if (scores.contains(tuner))
+ score = scores.get(tuner);
+ uint j = 0;
+ for (; j < ranking.getSize(); j++) {
+ TunerRecord *t = ranking.get(j);
+ int tscore = 0;
+ if (scores.contains(t))
+ tscore = scores.get(t);
+ if (score > tscore)
+ break;
+ }
+ LOG("ranking[%u]=tuner<%p,%u>(Score=%d)\n", j, tuner, tuner->tunernumber, score);
+ LOG("************************\n");
+ ranking.insertAt(j, tuner);
+ }
+ LOG("tunerSize=%u\trankingSize=%u\ttunerVSize=%u\n", tuners.getSize(), ranking.getSize(), tunerV->getSize());
+ for (uint i = tuners.getSize(); i < ranking.getSize(); i++) {
+ TunerRecord *tuner = ranking.get(i);
+ LOG("Removing tuner %u\n", tuner->tunernumber);
+ for (uint j = 0; j < tunerV->getSize(); j++) {
+ if (tunerV->get(j) == tuner)
+ tunerV->removeAt(j);
+ }
+ }
+ }
+ printData();
+}
+
+void MultiTuner::mapProblemsToTuners(Vector<TunerRecord *> *tunerV) {
for (uint i = 0; i < problems.getSize(); i++) {
Problem *problem = problems.get(i);
- double score = evaluate(problem, tuner);
+ TunerRecord *bestTuner = NULL;
+ long long bestscore = 0;
+ for (uint j = 0; j < tunerV->getSize(); j++) {
+ TunerRecord *tuner = tunerV->get(j);
+ long long metric = tuner->getTime(problem);
+ if (metric == -1) {
+ metric = evaluate(problem, tuner);
+ if (metric != -1)
+ tuner->setTime(problem, metric);
+ }
+ if ((bestTuner == NULL && metric != -1) ||
+ (metric < bestscore && metric != -1)) {
+ bestTuner = tuner;
+ bestscore = metric;
+ }
+ }
+ if (bestTuner != NULL)
+ bestTuner->problems.push(problem);
+ }
+}
+
+void clearVector(Vector<TunerRecord *> *tunerV) {
+ for (uint j = 0; j < tunerV->getSize(); j++) {
+ TunerRecord *tuner = tunerV->get(j);
+ tuner->problems.clear();
+ }
+}
+
+void MultiTuner::tuneK() {
+ Vector<TunerRecord *> *tunerV = new Vector<TunerRecord *>(&tuners);
+ for (uint i = 0; i < rounds; i++) {
+ clearVector(tunerV);
+ mapProblemsToTuners(tunerV);
+ improveTuners(tunerV);
+ }
+ model_print("Best tuners\n");
+ for (uint j = 0; j < tunerV->getSize(); j++) {
+ TunerRecord *tuner = tunerV->get(j);
+ char buffer[256];
+ sprintf(buffer, "tuner%u.conf", j);
+ tuner->getTuner()->serialize(buffer);
+ tuner->getTuner()->print();
+ }
+ delete tunerV;
+}
+
+void MultiTuner::improveTuners(Vector<TunerRecord *> *tunerV) {
+ for (uint j = 0; j < tunerV->getSize(); j++) {
+ TunerRecord *tuner = tunerV->get(j);
+ TunerRecord *newtuner = tune(tuner);
+ tunerV->set(j, newtuner);
+ }
+}
+
+double MultiTuner::evaluateAll(TunerRecord *tuner) {
+ double product = 1;
+ for (uint i = 0; i < tuner->problems.getSize(); i++) {
+ Problem *problem = tuner->problems.get(i);
+ long long metric = tuner->getTime(problem);
+ if (metric == -1) {
+ metric = evaluate(problem, tuner);
+ if (metric != -1)
+ tuner->setTime(problem, metric);
+ }
+
+ double score = metric;
product *= score;
}
- return pow(product, 1 / ((double)problems.getSize()));
+ return pow(product, 1 / ((double)tuner->problems.getSize()));
}
SearchTuner *MultiTuner::mutateTuner(SearchTuner *oldTuner, uint k) {
return newTuner;
}
-void MultiTuner::tune() {
- SearchTuner *bestTuner = NULL;
+TunerRecord *MultiTuner::tune(TunerRecord *tuner) {
+ TunerRecord *bestTuner = NULL;
double bestScore = DBL_MAX;
- SearchTuner *oldTuner = new SearchTuner();
+ TunerRecord *oldTuner = tuner;
double base_temperature = evaluateAll(oldTuner);
double oldScore = base_temperature;
for (uint i = 0; i < budget; i++) {
- SearchTuner *newTuner = mutateTuner(oldTuner, i);
+ SearchTuner *tmpTuner = mutateTuner(oldTuner->getTuner(), i);
+ TunerRecord *newTuner = oldTuner->changeTuner(tmpTuner);
+ newTuner->tunernumber = allTuners.getSize();
+ allTuners.push(newTuner);
double newScore = evaluateAll(newTuner);
- newTuner->printUsed();
+ newTuner->tuner->printUsed();
model_print("Received score %f\n", newScore);
double scoreDiff = newScore - oldScore; //smaller is better
if (newScore < bestScore) {
- if (bestTuner != NULL)
- delete bestTuner;
bestScore = newScore;
- bestTuner = newTuner->copyUsed();
+ bestTuner = newTuner;
}
double acceptanceP;
}
double ran = ((double)random()) / RAND_MAX;
if (ran <= acceptanceP) {
- delete oldTuner;
oldScore = newScore;
oldTuner = newTuner;
- } else {
- delete newTuner;
}
}
- model_print("Best tuner:\n");
- bestTuner->print();
- model_print("Received score %f\n", bestScore);
- if (bestTuner != NULL)
- delete bestTuner;
- delete oldTuner;
+
+ return bestTuner;
}
+
projects / satune.git / blobdiff