Adding a directed search based config for the tuner

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

diff --git a/src/Tuner/autotuner.cc b/src/Tuner/autotuner.cc
index d31a72f1e024733dc03d801ba221a59cc0fd46c2..857b21cf6a5ad3c935d26f63a2d0d2b8e3db5191 100644 (file)
--- a/src/Tuner/autotuner.cc
+++ b/src/Tuner/autotuner.cc
@@ -4,52 +4,9 @@
 #include <math.h>
 #include <stdlib.h>
 #include <float.h>
-#include <iostream>
-#include <chrono>
-#include <thread>
-#include <mutex>
-#include <condition_variable>
 
-#define TIMEOUT 1000s
 #define UNSETVALUE -1
-#define POSINFINITY 9999999999L
-
-using namespace std::chrono_literals;
-
-int solve(CSolver *solver)
-{
-       try{
-               return solver->solve();
-       }
-       catch (std::runtime_error &e) {
-               return UNSETVALUE;
-       }
-}
-
-int solveWrapper(CSolver *solver)
-{
-       std::mutex m;
-       std::condition_variable cv;
-       int retValue;
-
-       std::thread t([&cv, &retValue, solver]()
-               {
-                                                               retValue = solve(solver);
-                                                               cv.notify_one();
-               });
-
-       t.detach();
-
-       {
-               std::unique_lock<std::mutex> l(m);
-               if (cv.wait_for(l, TIMEOUT) == std::cv_status::timeout)
-                       throw std::runtime_error("Timeout");
-       }
-
-       return retValue;
-}
-
-
+#define TIMEOUTSEC 5000
 AutoTuner::AutoTuner(uint _budget) :
        budget(_budget), result(UNSETVALUE) {
 }
@@ -61,23 +18,16 @@ void AutoTuner::addProblem(CSolver *solver) {
 long long AutoTuner::evaluate(CSolver *problem, SearchTuner *tuner) {
        CSolver *copy = problem->clone();
        copy->setTuner(tuner);
+       copy->setSatSolverTimeout(TIMEOUTSEC);
        model_print("**********************\n");
-       long long metric = 0L;
-       try {
-               int sat = solveWrapper(copy);
-               if (result == UNSETVALUE)
-                       result = sat;
-               else if (result != sat) {
-                       model_print("&&&&&&&&&&&&&&&&&& Result has changed &&&&&&&&&&&&&\n");
-                       copy->printConstraints();
-               }
-               metric = copy->getElapsedTime();
+       int sat = copy->solve();
+       if (result == UNSETVALUE && sat != IS_INDETER)
+               result = sat;
+       else if (result != sat && sat != IS_INDETER) {
+               model_print("&&&&&&&&&&&&&&&&&& Result has changed &&&&&&&&&&&&&\n");
+               copy->printConstraints();
        }
-       catch (std::runtime_error &e) {
-               metric = POSINFINITY;
-               model_print("TimeOut has hit\n");
-       }
-
+       long long metric = copy->getElapsedTime();
        delete copy;
        return metric;
 }
@@ -105,6 +55,13 @@ SearchTuner *AutoTuner::mutateTuner(SearchTuner *oldTuner, uint k) {
        return newTuner;
 }
 
+#ifdef STATICENCGEN
+SearchTuner *AutoTuner::mutateTuner(SearchTuner *oldTuner) {
+       SearchTuner *newTuner = oldTuner->copyUsed();
+       result = newTuner->nextStaticTuner();
+       return result==EXIT_FAILURE? newTuner: NULL;
+}
+#endif
 
 void AutoTuner::tune() {
        SearchTuner *bestTuner = NULL;
@@ -114,6 +71,20 @@ void AutoTuner::tune() {
        double base_temperature = evaluateAll(oldTuner);
        double oldScore = base_temperature;
 
+#ifdef STATICENCGEN
+       while(true){
+               SearchTuner *newTuner = mutateTuner(oldTuner);
+               if(newTuner == NULL)
+                       return;
+               double newScore = evaluateAll(newTuner);
+               newTuner->printUsed();
+               model_print("Received score %f\n", newScore);
+               delete oldTuner;
+               oldScore = newScore;
+               oldTuner = newTuner;
+       }
+#endif
+       
        for (uint i = 0; i < budget; i++) {
                SearchTuner *newTuner = mutateTuner(oldTuner, i);
                double newScore = evaluateAll(newTuner);