#include "multituner.h"
-#include "csolver.h"
-#include "searchtuner.h"
-#include <math.h>
-#include <stdlib.h>
#include <float.h>
-#include <string.h>
+#include <math.h>
+#include "searchtuner.h"
#include <iostream>
#include <fstream>
-
-
-#define UNSETVALUE -1
-#define TIMEOUTSEC 5000
-
-Problem::Problem(const char *_problem) : result(UNSETVALUE) {
- uint len = strlen(_problem);
- problem = (char *) ourmalloc(len + 1);
- memcpy(problem, _problem, len + 1);
-}
-
-Problem::~Problem() {
- ourfree(problem);
-}
-
-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;
-}
+#include "solver_interface.h"
MultiTuner::MultiTuner(uint _budget, uint _rounds, uint _timeout) :
- budget(_budget), rounds(_rounds), timeout(_timeout), execnum(0) {
+ BasicTuner(_budget, _timeout),
+ rounds(_rounds)
+{
}
-MultiTuner::~MultiTuner() {
- for (uint i = 0; i < problems.getSize(); i++)
- ourfree(problems.get(i));
-}
-
-void MultiTuner::addProblem(const char *filename) {
- problems.push(new Problem(filename));
-}
-
-void MultiTuner::addTuner(SearchTuner *tuner) {
- tuners.push(new TunerRecord(tuner));
+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();
+ char buffer[512];
+ snprintf(buffer, sizeof(buffer), "best%u.tuner", i);
+ stun->serialize(buffer);
+ model_print("Tuner %u\n", tuner->getTunerNumber());
+ stun->print();
+ tuner->printProblemsInfo();
+ model_print("----------------------------------\n\n\n");
+ }
}
-long long MultiTuner::evaluate(Problem *problem, SearchTuner *tuner) {
- char buffer[512];
- //Write out the tuner
- snprintf(buffer, sizeof(buffer), "tuner%u", execnum);
- tuner->serialize(buffer);
-
- //Do run
- snprintf(buffer, sizeof(buffer), "deserializerun %s %u tuner%u result%s%u > log%u", problem->getProblem(), timeout, execnum, problem->getProblem(), execnum, execnum);
- int status = system(buffer);
-
- long long metric = -1;
- int sat = IS_INDETER;
- if (status == 0) {
+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), tunernumber));
+ }
+ //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%s%u", problem->getProblem(), execnum);
+ snprintf(buffer, sizeof(buffer), "result%u", i);
- ifstream myfile;
myfile.open (buffer, ios::in);
myfile >> sat;
myfile.close();
}
- }
- //Increment execution count
- execnum++;
+ if (problem->getResult() == TUNERUNSETVALUE && sat != IS_INDETER) {
+ problem->setResult(sat);
+ } else if (problem->getResult() != sat && sat != IS_INDETER) {
+ model_print("******** Result has changed ********\n");
+ }
+
+ if (metric != -1) {
+ if (tuner->getTime(problem) == -1)
+ tuner->addProblem(problem);
+ tuner->setTime(problem, metric);
+ }
- if (problem->result == UNSETVALUE && sat != IS_INDETER) {
- problem->result = sat;
- } else if (problem->result != sat && sat != IS_INDETER) {
- model_print("******** Result has changed ********\n");
}
- return metric;
+
}
-void MultiTuner::tuneComp() {
+void MultiTuner::tune() {
Vector<TunerRecord *> *tunerV = new Vector<TunerRecord *>(&tuners);
- for (uint i = 0; i < problems.getSize(); i++) {
- Problem *problem = problems.get(i);
-
+ 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->setTunerNumber(allTuners.getSize());
+ model_print("Mutated tuner %u to generate tuner %u\n", tunerV->get(i)->getTunerNumber(), tmp->getTunerNumber());
+ 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->addProblem(problem);
+ }
+ model_print("%u.Problem<%s>\tTuner<%p, %d>\tMetric<%lld>\n", i, problem->getProblem(),tuner, tuner->getTunerNumber(), metric);
+ model_print("*****************************\n");
+ if (metric != -1)
+ tuner->setTime(problem, metric);
+ else
+ tuner->setTime(problem, -2);
+ }
+ if (metric >= 0) {
+ uint k = 0;
+ for (; k < places.getSize(); k++) {
+ if (metric < places.get(k)->getTime(problem))
+ break;
+ }
+ model_print("place[%u]=Tuner<%p,%d>\n", k, tuner, tuner->getTunerNumber());
+ 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;
+ model_print("Problem<%s>\tTuner<%p,%d>\tmetric<%d>\n", problem->getProblem(), tuner, tuner->getTunerNumber(), currScore);
+ model_print("**************************\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;
+ }
+ model_print("ranking[%u]=tuner<%p,%u>(Score=%d)\n", j, tuner, tuner->getTunerNumber(), score);
+ model_print("************************\n");
+ ranking.insertAt(j, tuner);
+ }
+ model_print("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);
+ model_print("Removing tuner %u\n", tuner->getTunerNumber());
+ for (uint j = 0; j < tunerV->getSize(); j++) {
+ if (tunerV->get(j) == tuner)
+ tunerV->removeAt(j);
+ }
+ }
}
-
+ printData();
}
void MultiTuner::mapProblemsToTuners(Vector<TunerRecord *> *tunerV) {
TunerRecord *tuner = tunerV->get(j);
long long metric = tuner->getTime(problem);
if (metric == -1) {
- metric = evaluate(problem, tuner->getTuner());
+ metric = evaluate(problem, tuner);
if (metric != -1)
tuner->setTime(problem, metric);
+ else
+ tuner->setTime(problem, -2);
}
- if ((bestTuner == NULL && metric != -1) ||
- (metric < bestscore && metric != -1)) {
+ if ((bestTuner == NULL && metric >= 0) ||
+ (metric < bestscore && metric >= 0)) {
bestTuner = tuner;
bestscore = metric;
}
}
if (bestTuner != NULL)
- bestTuner->problems.push(problem);
+ bestTuner->addProblem(problem);
}
}
double MultiTuner::evaluateAll(TunerRecord *tuner) {
double product = 1;
- for (uint i = 0; i < tuner->problems.getSize(); i++) {
- Problem *problem = tuner->problems.get(i);
+ for (uint i = 0; i < tuner->problemsSize(); i++) {
+ Problem *problem = tuner->getProblem(i);
long long metric = tuner->getTime(problem);
if (metric == -1) {
- metric = evaluate(problem, tuner->getTuner());
+ metric = evaluate(problem, tuner);
if (metric != -1)
tuner->setTime(problem, metric);
+ else
+ tuner->setTime(problem, -2);
}
double score = metric;
+ if (metric < 0)
+ score = timeout;
product *= score;
}
- return pow(product, 1 / ((double)tuner->problems.getSize()));
-}
-
-SearchTuner *MultiTuner::mutateTuner(SearchTuner *oldTuner, uint k) {
- SearchTuner *newTuner = oldTuner->copyUsed();
- uint numSettings = oldTuner->getSize();
- uint settingsToMutate = (uint)(AUTOTUNERFACTOR * (((double)numSettings) * (budget - k)) / (budget));
- if (settingsToMutate < 1)
- settingsToMutate = 1;
- model_print("Mutating %u settings\n", settingsToMutate);
- while (settingsToMutate-- != 0) {
- newTuner->randomMutate();
- }
- return newTuner;
+ return pow(product, 1 / ((double)tuner->problemsSize()));
}
TunerRecord *MultiTuner::tune(TunerRecord *tuner) {
for (uint i = 0; i < budget; i++) {
SearchTuner *tmpTuner = mutateTuner(oldTuner->getTuner(), i);
TunerRecord *newTuner = oldTuner->changeTuner(tmpTuner);
+ newTuner->setTunerNumber( allTuners.getSize() );
+ allTuners.push(newTuner);
double newScore = evaluateAll(newTuner);
- newTuner->tuner->printUsed();
+ newTuner->getTuner()->printUsed();
model_print("Received score %f\n", newScore);
double scoreDiff = newScore - oldScore; //smaller is better
if (newScore < bestScore) {
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