edits
authorbdemsky <bdemsky@uci.edu>
Fri, 12 Oct 2018 23:15:06 +0000 (16:15 -0700)
committerbdemsky <bdemsky@uci.edu>
Fri, 12 Oct 2018 23:15:06 +0000 (16:15 -0700)
src/Tuner/multituner.cc
src/Tuner/multituner.h

index e99082345971521885fcf9ac437346594f7e47d1..cd8d7bb942407f23894df49729f8c922283689c9 100644 (file)
@@ -22,6 +22,24 @@ 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;
+}
+
 MultiTuner::MultiTuner(uint _budget, uint _rounds, uint _timeout) :
        budget(_budget), rounds(_rounds), timeout(_timeout), execnum(0) {
 }
@@ -76,6 +94,16 @@ long long MultiTuner::evaluate(Problem *problem, SearchTuner *tuner) {
        return metric;
 }
 
+void MultiTuner::tuneComp() {
+       Vector<TunerRecord *> *tunerV = new Vector<TunerRecord *>(&tuners);
+       for (uint i = 0; i < problems.getSize(); i++) {
+               Problem *problem = problems.get(i);
+
+
+       }
+
+}
+
 void MultiTuner::mapProblemsToTuners(Vector<TunerRecord *> *tunerV) {
        for (uint i = 0; i < problems.getSize(); i++) {
                Problem *problem = problems.get(i);
@@ -83,7 +111,12 @@ void MultiTuner::mapProblemsToTuners(Vector<TunerRecord *> *tunerV) {
                long long bestscore = 0;
                for (uint j = 0; j < tunerV->getSize(); j++) {
                        TunerRecord *tuner = tunerV->get(j);
-                       long long metric = evaluate(problem, tuner->getTuner());
+                       long long metric = tuner->getTime(problem);
+                       if (metric == -1) {
+                               metric = evaluate(problem, tuner->getTuner());
+                               if (metric != -1)
+                                       tuner->setTime(problem, metric);
+                       }
                        if ((bestTuner == NULL && metric != -1) ||
                                        (metric < bestscore && metric != -1)) {
                                bestTuner = tuner;
@@ -123,18 +156,26 @@ void MultiTuner::tuneK() {
 void MultiTuner::improveTuners(Vector<TunerRecord *> *tunerV) {
        for (uint j = 0; j < tunerV->getSize(); j++) {
                TunerRecord *tuner = tunerV->get(j);
-               SearchTuner *newtuner = tune(tuner->getTuner(), &tuner->problems);
+               TunerRecord *newtuner = tune(tuner);
+               tunerV->set(j, newtuner);
        }
 }
 
-double MultiTuner::evaluateAll(SearchTuner *tuner, Vector<Problem *> *tProblems) {
+double MultiTuner::evaluateAll(TunerRecord *tuner) {
        double product = 1;
-       for (uint i = 0; i < tProblems->getSize(); i++) {
-               Problem *problem = tProblems->get(i);
-               double score = evaluate(problem, tuner);
+       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->getTuner());
+                       if (metric != -1)
+                               tuner->setTime(problem, metric);
+               }
+
+               double score = metric;
                product *= score;
        }
-       return pow(product, 1 / ((double)tProblems->getSize()));
+       return pow(product, 1 / ((double)tuner->problems.getSize()));
 }
 
 SearchTuner *MultiTuner::mutateTuner(SearchTuner *oldTuner, uint k) {
@@ -150,25 +191,24 @@ SearchTuner *MultiTuner::mutateTuner(SearchTuner *oldTuner, uint k) {
        return newTuner;
 }
 
-SearchTuner *MultiTuner::tune(SearchTuner *tuner, Vector<Problem *> *tProblems) {
-       SearchTuner *bestTuner = NULL;
+TunerRecord *MultiTuner::tune(TunerRecord *tuner) {
+       TunerRecord *bestTuner = NULL;
        double bestScore = DBL_MAX;
 
-       SearchTuner *oldTuner = tuner->copyUsed();
-       double base_temperature = evaluateAll(oldTuner, tProblems);
+       TunerRecord *oldTuner = tuner;
+       double base_temperature = evaluateAll(oldTuner);
        double oldScore = base_temperature;
 
        for (uint i = 0; i < budget; i++) {
-               SearchTuner *newTuner = mutateTuner(oldTuner, i);
-               double newScore = evaluateAll(newTuner, tProblems);
-               newTuner->printUsed();
+               SearchTuner *tmpTuner = mutateTuner(oldTuner->getTuner(), i);
+               TunerRecord *newTuner = oldTuner->changeTuner(tmpTuner);
+               double newScore = evaluateAll(newTuner);
+               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;
@@ -180,11 +220,8 @@ SearchTuner *MultiTuner::tune(SearchTuner *tuner, Vector<Problem *> *tProblems)
                }
                double ran = ((double)random()) / RAND_MAX;
                if (ran <= acceptanceP) {
-                       delete oldTuner;
                        oldScore = newScore;
                        oldTuner = newTuner;
-               } else {
-                       delete newTuner;
                }
        }
 
index 1c2a1fe7f5a61c4db02ae3402c40f869496d5af0..40bd5e19463acfa6bcefe6071ef9cd314d6e8687 100644 (file)
@@ -21,9 +21,13 @@ class TunerRecord {
 public:
        TunerRecord(SearchTuner *_tuner) : tuner(_tuner) {}
        SearchTuner *getTuner() {return tuner;}
+       TunerRecord *changeTuner(SearchTuner *_newtuner);
+       long long getTime(Problem *problem);
+       void setTime(Problem *problem, long long time);
 private:
        SearchTuner *tuner;
        Vector<Problem *> problems;
+       Hashtable<Problem *, long long, uint64_t> timetaken;
        friend class MultiTuner;
        friend void clearVector(Vector<TunerRecord *> *tunerV);
 };
@@ -34,18 +38,18 @@ public:
        ~MultiTuner();
        void addProblem(const char *filename);
        void addTuner(SearchTuner *tuner);
-
        void tuneK();
        CMEMALLOC;
 protected:
        long long evaluate(Problem *problem, SearchTuner *tuner);
-       double evaluateAll(SearchTuner *tuner, Vector<Problem *> *tProblems);
+       double evaluateAll(TunerRecord *tuner);
        SearchTuner *mutateTuner(SearchTuner *oldTuner, uint k);
        void mapProblemsToTuners(Vector<TunerRecord *> *tunerV);
        void improveTuners(Vector<TunerRecord *> *tunerV);
-       SearchTuner *tune(SearchTuner *tuner, Vector<Problem *> *tProblems);
-
+       TunerRecord *tune(TunerRecord *tuner);
+       void tuneComp();
 
+       Vector<TunerRecord *> allTuners;
        Vector<Problem *> problems;
        Vector<TunerRecord *> tuners;
        uint budget;