Finding the 3 best tuners after the learning process

[satune.git] / src / Tuner / multituner.cc

diff --git a/src/Tuner/multituner.cc b/src/Tuner/multituner.cc
index 61b5bd38e62461f49e1ab4a9cf71abb3244b1e30..0850f66ede42289b2623187d5407fc04e372ba18 100644 (file)
--- a/src/Tuner/multituner.cc
+++ b/src/Tuner/multituner.cc
@@ -7,10 +7,15 @@
 #include <string.h>
 #include <iostream>
 #include <fstream>
+#include <limits>
 
 #define UNSETVALUE -1
 
-Problem::Problem(const char *_problem) : problemnumber(-1), 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);
@@ -71,6 +76,52 @@ void MultiTuner::printData() {
        }
 }
 
+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) {
        TunerRecord *t = new TunerRecord(tuner);
        tuners.push(t);
@@ -173,8 +224,13 @@ long long MultiTuner::evaluate(Problem *problem, TunerRecord *tuner) {
        snprintf(buffer, sizeof(buffer), "tuner%u", execnum);
        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), "./run.sh deserializerun %s %u tuner%u result%u > log%u", problem->getProblem(), timeout, execnum, execnum, 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;
@@ -193,7 +249,7 @@ long long MultiTuner::evaluate(Problem *problem, TunerRecord *tuner) {
                        myfile >> sat;
                        myfile.close();
                }
-
+               updateTimeout(problem, metric);
                snprintf(buffer, sizeof(buffer), "tuner%uused", execnum);
                tuner->getTuner()->addUsed(buffer);
        }
@@ -205,9 +261,18 @@ long long MultiTuner::evaluate(Problem *problem, TunerRecord *tuner) {
        } 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;
 }
 
+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++) {
@@ -234,8 +299,8 @@ void MultiTuner::tuneComp() {
                                        if (tuner->getTime(problem) == -1) {
                                                tuner->problems.push(problem);
                                        }
-                                       DEBUG("%u.Problem<%s>\tTuner<%p, %d>\tMetric<%lld>\n", i, problem->problem,tuner, tuner->tunernumber, metric);
-                                       DEBUG("*****************************\n");
+                                       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);
                                }
@@ -245,7 +310,7 @@ void MultiTuner::tuneComp() {
                                                if (metric < places.get(k)->getTime(problem))
                                                        break;
                                        }
-                                       DEBUG("place[%u]=Tuner<%p>\n", k, tuner);
+                                       LOG("place[%u]=Tuner<%p,%d>\n", k, tuner, tuner->tunernumber);
                                        places.insertAt(k, tuner);
                                }
                        }
@@ -256,8 +321,8 @@ void MultiTuner::tuneComp() {
                                if (scores.contains(tuner))
                                        currScore = scores.get(tuner);
                                currScore += points;
-                               DEBUG("Problem<%s>\tTuner<%p,%d>\tmetric<%d>\n", problem->problem, tuner, tuner->tunernumber,  currScore);
-                               DEBUG("**************************\n");
+                               LOG("Problem<%s>\tTuner<%p,%d>\tmetric<%d>\n", problem->problem, tuner, tuner->tunernumber,  currScore);
+                               LOG("**************************\n");
                                scores.put(tuner, currScore);
                                points = points / 3;
                        }
@@ -277,14 +342,14 @@ void MultiTuner::tuneComp() {
                                if (score > tscore)
                                        break;
                        }
-                       DEBUG("ranking[%u]=tuner<%p,%u>(Score=%d)\n", j, tuner, tuner->tunernumber, score);
-                       DEBUG("************************\n");
+                       LOG("ranking[%u]=tuner<%p,%u>(Score=%d)\n", j, tuner, tuner->tunernumber, score);
+                       LOG("************************\n");
                        ranking.insertAt(j, tuner);
                }
-               DEBUG("tunerSize=%u\trankingSize=%u\ttunerVSize=%u\n", tuners.getSize(), ranking.getSize(), tunerV->getSize());
+               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);
-                       model_print("Removing tuner %u\n", tuner->tunernumber);
+                       LOG("Removing tuner %u\n", tuner->tunernumber);
                        for (uint j = 0; j < tunerV->getSize(); j++) {
                                if (tunerV->get(j) == tuner)
                                        tunerV->removeAt(j);