X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=src%2FTuner%2Fmultituner.cc;h=206a62e00067c2d2f1e79c29919bc90ecb2fd238;hb=67ab65d6d34fc2d8e66df7c024c7d4b1c8a5e95d;hp=232b1ea2e1d7f914b341e687a385164a5819b412;hpb=c2bfdd3a9255bb06e73edba902d1c13ed6e1ce43;p=satune.git

diff --git a/src/Tuner/multituner.cc b/src/Tuner/multituner.cc
index 232b1ea..206a62e 100644
--- 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++) {
@@ -234,7 +299,7 @@ void MultiTuner::tuneComp() {
 					if (tuner->getTime(problem) == -1) {
 						tuner->problems.push(problem);
 					}
-					LOG("%u.Problem<%s>\tTuner<%p>\tMetric<%lld>\n", i, problem->problem,tuner, metric);
+					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;
 					}
-					LOG("place[%u]=Tuner<%p>\n", k, tuner);
+					LOG("place[%u]=Tuner<%p,%d>\n", k, tuner, tuner->tunernumber);
 					places.insertAt(k, tuner);
 				}
 			}
@@ -256,7 +321,7 @@ void MultiTuner::tuneComp() {
 				if (scores.contains(tuner))
 					currScore = scores.get(tuner);
 				currScore += points;
-				LOG("Problem<%s>\tTuner<%p>\tmetric<%d>\n", problem->problem, tuner, currScore);
+				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;
 			}
-			LOG("ranking[%u]=tuner<%p>(Score=%d)\n", j, tuner, score);
+			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);
-			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);