Robust/src/Main/Main.java

   1 package Main;
   2
   3 import java.io.FileOutputStream;
   4 import java.io.PrintStream;
   5 import java.io.Reader;
   6 import java.io.BufferedReader;
   7 import java.io.FileReader;
   8 import java.io.FileInputStream;
   9 import java.util.Iterator;
  10 import java.util.Set;
  11 import java.util.Vector;
  12
  13 import IR.Tree.ParseNode;
  14 import IR.Tree.BuildIR;
  15 import IR.Tree.SemanticCheck;
  16 import IR.Flat.BuildCodeMultiCore;
  17 import IR.Flat.BuildFlat;
  18 import IR.Flat.BuildCode;
  19 import IR.ClassDescriptor;
  20 import IR.State;
  21 import IR.TaskDescriptor;
  22 import IR.TypeUtil;
  23 import Analysis.Scheduling.Schedule;
  24 import Analysis.Scheduling.ScheduleAnalysis;
  25 import Analysis.Scheduling.ScheduleSimulator;
  26 import Analysis.TaskStateAnalysis.TaskAnalysis;
  27 import Analysis.TaskStateAnalysis.TaskTagAnalysis;
  28 import Analysis.TaskStateAnalysis.TaskGraph;
  29 import Analysis.CallGraph.CallGraph;
  30 import Analysis.TaskStateAnalysis.FEdge;
  31 import Analysis.TaskStateAnalysis.FlagState;
  32 import Analysis.TaskStateAnalysis.TagAnalysis;
  33 import Analysis.TaskStateAnalysis.GarbageAnalysis;
  34 import Analysis.TaskStateAnalysis.ExecutionGraph;
  35 import Analysis.TaskStateAnalysis.SafetyAnalysis;
  36 import Analysis.Locality.LocalityAnalysis;
  37 import Analysis.Locality.GenerateConversions;
  38 import Analysis.Prefetch.PrefetchAnalysis;
  39 import Analysis.FlatIRGraph.FlatIRGraph;
  40 import Analysis.OwnershipAnalysis.OwnershipAnalysis;
  41 import Interface.*;
  42 import Util.GraphNode;
  43 import Util.GraphNode.DFS;
  44 import Util.GraphNode.SCC;
  45
  46 public class Main {
  47
  48   /** Main method for the compiler.  */
  49
  50   public static void main(String args[]) throws Exception {
  51     String ClassLibraryPrefix="./ClassLibrary/";
  52     State state=new State();
  53
  54     for(int i=0; i<args.length; i++) {
  55       String option=args[i];
  56       if (option.equals("-precise"))
  57         IR.Flat.BuildCode.GENERATEPRECISEGC=true;
  58       else if (option.equals("-prefetch"))
  59         state.PREFETCH=true;
  60       else if (option.equals("-dir"))
  61         IR.Flat.BuildCode.PREFIX=args[++i]+"/";
  62       else if (option.equals("-selfloop"))
  63         state.selfloops.add(args[++i]);
  64       else if (option.equals("-excprefetch"))
  65         state.excprefetch.add(args[++i]);
  66       else if (option.equals("-classlibrary"))
  67         ClassLibraryPrefix=args[++i]+"/";
  68       else if(option.equals("-numcore")) {
  69         ++i;
  70         state.CORENUM = Integer.parseInt(args[i]);
  71       } else if (option.equals("-mainclass"))
  72         state.main=args[++i];
  73       else if (option.equals("-trueprob")) {
  74         state.TRUEPROB=Double.parseDouble(args[++i]);
  75       } else if (option.equals("-printflat"))
  76         State.PRINTFLAT=true;
  77       else if (option.equals("-struct"))
  78         state.structfile=args[++i];
  79       else if (option.equals("-conscheck"))
  80         state.CONSCHECK=true;
  81       else if (option.equals("-task"))
  82         state.TASK=true;
  83       else if (option.equals("-taskstate"))
  84         state.TASKSTATE=true;
  85       else if (option.equals("-tagstate"))
  86         state.TAGSTATE=true;
  87       else if (option.equals("-flatirtasks")) {
  88         state.FLATIRGRAPH=true;
  89         state.FLATIRGRAPHTASKS=true;
  90       } else if (option.equals("-flatirusermethods")) {
  91         state.FLATIRGRAPH=true;
  92         state.FLATIRGRAPHUSERMETHODS=true;
  93       } else if (option.equals("-flatirlibmethods")) {
  94         state.FLATIRGRAPH=true;
  95         state.FLATIRGRAPHLIBMETHODS=true;
  96       } else if (option.equals("-multicore"))
  97         state.MULTICORE=true;
  98       else if (option.equals("-ownership"))
  99         state.OWNERSHIP=true;
 100       else if (option.equals("-ownallocdepth")) {
 101         state.OWNERSHIPALLOCDEPTH=Integer.parseInt(args[++i]);
 102       } else if (option.equals("-ownwritedots")) {
 103         state.OWNERSHIPWRITEDOTS=true;
 104         if (args[++i].equals("all")) {
 105           state.OWNERSHIPWRITEALL=true;
 106         }
 107       } else if (option.equals("-ownaliasfile"))
 108         state.OWNERSHIPALIASFILE=args[++i];
 109       else if (option.equals("-optional"))
 110         state.OPTIONAL=true;
 111       else if (option.equals("-raw"))
 112         state.RAW=true;
 113       else if (option.equals("-scheduling"))
 114         state.SCHEDULING=true;
 115       else if (option.equals("-useprofile"))
 116         state.USEPROFILE=true;
 117       else if (option.equals("-thread"))
 118         state.THREAD=true;
 119       else if (option.equals("-dsm"))
 120         state.DSM=true;
 121       else if (option.equals("-webinterface"))
 122         state.WEBINTERFACE=true;
 123       else if (option.equals("-instructionfailures"))
 124         state.INSTRUCTIONFAILURE=true;
 125       else if (option.equals("-help")) {
 126         System.out.println("-classlibrary classlibrarydirectory -- directory where classlibrary is located");
 127         System.out.println("-selfloop task -- this task doesn't self loop its parameters forever");
 128         System.out.println("-dir outputdirectory -- output code in outputdirectory");
 129         System.out.println("-struct structfile -- output structure declarations for repair tool");
 130         System.out.println("-mainclass -- main function to call");
 131         System.out.println("-dsm -- distributed shared memory support");
 132         System.out.println("-precise -- use precise garbage collection");
 133         System.out.println("-conscheck -- turn on consistency checking");
 134         System.out.println("-task -- compiler for tasks");
 135         System.out.println("-thread -- threads");
 136         System.out.println("-trueprob <d> -- probability of true branch");
 137         System.out.println("-printflat -- print out flat representation");
 138         System.out.println("-instructionfailures -- insert code for instruction level failures");
 139         System.out.println("-taskstate -- do task state analysis");
 140         System.out.println("-flatirtasks -- create dot files for flat IR graphs of tasks");
 141         System.out.println("-flatirusermethods -- create dot files for flat IR graphs of user methods");
 142         System.out.println("-flatirlibmethods -- create dot files for flat IR graphs of library class methods");
 143         System.out.println("  note: -flatirusermethods or -flatirlibmethods currently generate all class method flat IR graphs");
 144         System.out.println("-ownership -- do ownership analysis");
 145         System.out.println("-ownallocdepth <d> -- set allocation depth for ownership analysis");
 146         System.out.println("-ownwritedots <all/final> -- write ownership graphs; can be all results or just final results");
 147         System.out.println("-ownaliasfile <filename> -- write a text file showing all detected aliases in program tasks");
 148         System.out.println("-optional -- enable optional arguments");
 149         System.out.println("-webinterface -- enable web interface");
 150         System.out.println("-help -- print out help");
 151         System.exit(0);
 152       } else {
 153         readSourceFile(state, args[i]);
 154       }
 155     }
 156
 157
 158     readSourceFile(state, ClassLibraryPrefix+"System.java");
 159     readSourceFile(state, ClassLibraryPrefix+"String.java");
 160     readSourceFile(state, ClassLibraryPrefix+"HashSet.java");
 161     readSourceFile(state, ClassLibraryPrefix+"HashMap.java");
 162     readSourceFile(state, ClassLibraryPrefix+"HashMapIterator.java");
 163     readSourceFile(state, ClassLibraryPrefix+"HashEntry.java");
 164     readSourceFile(state, ClassLibraryPrefix+"Integer.java");
 165     readSourceFile(state, ClassLibraryPrefix+"StringBuffer.java");
 166     //if(!state.RAW) {
 167     readSourceFile(state, ClassLibraryPrefix+"FileInputStream.java");
 168     readSourceFile(state, ClassLibraryPrefix+"InputStream.java");
 169     readSourceFile(state, ClassLibraryPrefix+"OutputStream.java");
 170     readSourceFile(state, ClassLibraryPrefix+"FileOutputStream.java");
 171     readSourceFile(state, ClassLibraryPrefix+"File.java");
 172     readSourceFile(state, ClassLibraryPrefix+"InetAddress.java");
 173     readSourceFile(state, ClassLibraryPrefix+"SocketInputStream.java");
 174     readSourceFile(state, ClassLibraryPrefix+"SocketOutputStream.java");
 175     //}
 176     readSourceFile(state, ClassLibraryPrefix+"Math.java");
 177     readSourceFile(state, ClassLibraryPrefix+"gnu/Random.java");
 178     readSourceFile(state, ClassLibraryPrefix+"Vector.java");
 179     readSourceFile(state, ClassLibraryPrefix+"Enumeration.java");
 180     readSourceFile(state, ClassLibraryPrefix+"Dictionary.java");
 181     readSourceFile(state, ClassLibraryPrefix+"Writer.java");
 182     readSourceFile(state, ClassLibraryPrefix+"BufferedWriter.java");
 183     readSourceFile(state, ClassLibraryPrefix+"OutputStreamWriter.java");
 184     readSourceFile(state, ClassLibraryPrefix+"FileWriter.java");
 185     readSourceFile(state, ClassLibraryPrefix+"Date.java");
 186
 187     if (state.TASK) {
 188       readSourceFile(state, ClassLibraryPrefix+"Object.java");
 189       readSourceFile(state, ClassLibraryPrefix+"TagDescriptor.java");
 190     } else if (state.DSM) {
 191       readSourceFile(state, ClassLibraryPrefix+"ThreadDSM.java");
 192       readSourceFile(state, ClassLibraryPrefix+"ObjectJavaDSM.java");
 193       readSourceFile(state, ClassLibraryPrefix+"Barrier.java");
 194     } else {
 195       if (state.THREAD) {
 196         readSourceFile(state, ClassLibraryPrefix+"Thread.java");
 197         readSourceFile(state, ClassLibraryPrefix+"ObjectJava.java");
 198       } else
 199         readSourceFile(state, ClassLibraryPrefix+"ObjectJavaNT.java");
 200     }
 201
 202     if (state.TASK) {
 203       readSourceFile(state, ClassLibraryPrefix+"StartupObject.java");
 204       readSourceFile(state, ClassLibraryPrefix+"Socket.java");
 205       readSourceFile(state, ClassLibraryPrefix+"ServerSocket.java");
 206     } else {
 207       readSourceFile(state, ClassLibraryPrefix+"SocketJava.java");
 208       readSourceFile(state, ClassLibraryPrefix+"ServerSocketJava.java");
 209     }
 210
 211     BuildIR bir=new BuildIR(state);
 212     bir.buildtree();
 213
 214     TypeUtil tu=new TypeUtil(state);
 215
 216     SemanticCheck sc=new SemanticCheck(state,tu);
 217     sc.semanticCheck();
 218     tu.createFullTable();
 219
 220     BuildFlat bf=new BuildFlat(state,tu);
 221     bf.buildFlat();
 222     SafetyAnalysis sa=null;
 223     PrefetchAnalysis pa=null;
 224
 225     if (state.TAGSTATE) {
 226       CallGraph callgraph=new CallGraph(state);
 227       TagAnalysis taganalysis=new TagAnalysis(state, callgraph);
 228       TaskTagAnalysis tta=new TaskTagAnalysis(state, taganalysis);
 229     }
 230
 231     if (state.TASKSTATE) {
 232       CallGraph callgraph=new CallGraph(state);
 233       TagAnalysis taganalysis=new TagAnalysis(state, callgraph);
 234       TaskAnalysis ta=new TaskAnalysis(state, taganalysis);
 235       ta.taskAnalysis();
 236       TaskGraph tg=new TaskGraph(state, ta);
 237       tg.createDOTfiles();
 238
 239       if (state.OPTIONAL) {
 240         ExecutionGraph et=new ExecutionGraph(state, ta);
 241         et.createExecutionGraph();
 242         sa = new SafetyAnalysis(et.getExecutionGraph(), state, ta);
 243         sa.doAnalysis();
 244         state.storeAnalysisResult(sa.getResult());
 245         state.storeOptionalTaskDescriptors(sa.getOptionalTaskDescriptors());
 246       }
 247
 248       if (state.WEBINTERFACE) {
 249         GarbageAnalysis ga=new GarbageAnalysis(state, ta);
 250         WebInterface wi=new WebInterface(state, ta, tg, ga, taganalysis);
 251         JhttpServer serve=new JhttpServer(8000,wi);
 252         serve.run();
 253       }
 254
 255       if (state.SCHEDULING) {
 256         // Indentify backedges
 257         for(Iterator it_classes=state.getClassSymbolTable().getDescriptorsIterator(); it_classes.hasNext();) {
 258           ClassDescriptor cd=(ClassDescriptor) it_classes.next();
 259           if(cd.hasFlags()) {
 260             Set<FlagState> fss = ta.getFlagStates(cd);
 261             SCC scc=GraphNode.DFS.computeSCC(fss);
 262             if (scc.hasCycles()) {
 263               for(int i=0; i<scc.numSCC(); i++) {
 264                 if (scc.hasCycle(i)) {
 265                   Set cycleset = scc.getSCC(i);
 266                   Iterator it_fs = cycleset.iterator();
 267                   while(it_fs.hasNext()) {
 268                     FlagState fs = (FlagState)it_fs.next();
 269                     Iterator it_edges = fs.edges();
 270                     while(it_edges.hasNext()) {
 271                       FEdge edge = (FEdge)it_edges.next();
 272                       if(cycleset.contains(edge.getTarget())) {
 273                         // a backedge
 274                         edge.setisbackedge(true);
 275                       }
 276                     }
 277                   }
 278                 }
 279               }
 280             }
 281           }
 282         }
 283
 284         // set up profiling data
 285         if(state.USEPROFILE) {
 286           // read in profile data and set
 287           FileInputStream inStream = new FileInputStream("/scratch/profile.rst");
 288           byte[] b = new byte[1024 * 100];
 289           int length = inStream.read(b);
 290           if(length < 0) {
 291             System.out.print("No content in input file: /scratch/profile.rst\n");
 292             System.exit(-1);
 293           }
 294           String profiledata = new String(b, 0, length);
 295           java.util.Hashtable<String, Integer> taskinfo = new java.util.Hashtable<String, Integer>();
 296
 297           int inindex = profiledata.indexOf('\n');
 298           while((inindex != -1) ) {
 299             String inline = profiledata.substring(0, inindex);
 300             profiledata = profiledata.substring(inindex + 1);
 301             //System.printString(inline + "\n");
 302             int tmpinindex = inline.indexOf(',');
 303             if(tmpinindex == -1) {
 304               break;
 305             }
 306             String inname = inline.substring(0, tmpinindex);
 307             String inint = inline.substring(tmpinindex + 1);
 308             while(inint.startsWith(" ")) {
 309               inint = inint.substring(1);
 310             }
 311             int duration = Integer.parseInt(inint);
 312             taskinfo.put(inname, duration);
 313             inindex = profiledata.indexOf('\n');
 314           }
 315
 316           java.util.Random r=new java.util.Random();
 317           int tint = 0;
 318           for(Iterator it_classes=state.getClassSymbolTable().getDescriptorsIterator(); it_classes.hasNext();) {
 319             ClassDescriptor cd=(ClassDescriptor) it_classes.next();
 320             if(cd.hasFlags()) {
 321               Vector rootnodes=ta.getRootNodes(cd);
 322               if(rootnodes!=null) {
 323                 for(Iterator it_rootnodes=rootnodes.iterator(); it_rootnodes.hasNext();) {
 324                   FlagState root=(FlagState)it_rootnodes.next();
 325                   Vector allocatingTasks = root.getAllocatingTasks();
 326                   if(allocatingTasks != null) {
 327                     for(int k = 0; k < allocatingTasks.size(); k++) {
 328                       TaskDescriptor td = (TaskDescriptor)allocatingTasks.elementAt(k);
 329                       Vector<FEdge> fev = (Vector<FEdge>)ta.getFEdgesFromTD(td);
 330                       int numEdges = fev.size();
 331                       int total = 100;
 332                       for(int j = 0; j < numEdges; j++) {
 333                         FEdge pfe = fev.elementAt(j);
 334                         if(numEdges - j == 1) {
 335                           pfe.setProbability(total);
 336                         } else {
 337                           if((total != 0) && (total != 1)) {
 338                             do {
 339                               tint = r.nextInt()%total;
 340                             } while(tint <= 0);
 341                           }
 342                           pfe.setProbability(tint);
 343                           total -= tint;
 344                         }
 345                         //do {
 346                         //   tint = r.nextInt()%10;
 347                         //  } while(tint <= 0);
 348                         //int newRate = tint;
 349                         //int newRate = (j+1)%2+1;
 350                         int newRate = 1;
 351                         String cdname = cd.getSymbol();
 352                         if((cdname.equals("SeriesRunner")) ||
 353                            (cdname.equals("MDRunner")) ||
 354                            (cdname.equals("Stage")) ||
 355                            (cdname.equals("AppDemoRunner")) ||
 356                            (cdname.equals("FilterBankAtom"))) {
 357                           newRate = 16;
 358                         } else if(cdname.equals("SentenceParser")) {
 359                           newRate = 4;
 360                         }
 361                         //do {
 362                         //    tint = r.nextInt()%100;
 363                         //   } while(tint <= 0);
 364                         //   int probability = tint;
 365                         int probability = 100;
 366                         pfe.addNewObjInfo(cd, newRate, probability);
 367                       }
 368                     }
 369                   }
 370                 }
 371               }
 372               Iterator it_flags = ta.getFlagStates(cd).iterator();
 373               while(it_flags.hasNext()) {
 374                 FlagState fs = (FlagState)it_flags.next();
 375                 Iterator it_edges = fs.edges();
 376                 int total = 100;
 377                 while(it_edges.hasNext()) {
 378                   //do {
 379                   //    tint = r.nextInt()%10;
 380                   //   } while(tint <= 0);
 381                   FEdge edge = (FEdge)it_edges.next();
 382                   tint = taskinfo.get(edge.getTask().getSymbol()).intValue();
 383                   edge.setExeTime(tint);
 384                   if((fs.getClassDescriptor().getSymbol().equals("MD")) && (edge.getTask().getSymbol().equals("t6"))) {
 385                     if(edge.isbackedge()) {
 386                       if(edge.getTarget().equals(edge.getSource())) {
 387                         edge.setProbability(93.75);
 388                       } else {
 389                         edge.setProbability(3.125);
 390                       }
 391                     } else {
 392                       edge.setProbability(3.125);
 393                     }
 394                     continue;
 395                   }
 396                   if(!it_edges.hasNext()) {
 397                     edge.setProbability(total);
 398                   } else {
 399                     if((total != 0) && (total != 1)) {
 400                       do {
 401                         tint = r.nextInt()%total;
 402                       } while(tint <= 0);
 403                     }
 404                     edge.setProbability(tint);
 405                     total -= tint;
 406                   }
 407                 }
 408               }
 409             }
 410           }
 411         } else {
 412           // for test
 413           // Randomly set the newRate and probability of FEdges
 414           java.util.Random r=new java.util.Random();
 415           int tint = 0;
 416           for(Iterator it_classes=state.getClassSymbolTable().getDescriptorsIterator(); it_classes.hasNext();) {
 417             ClassDescriptor cd=(ClassDescriptor) it_classes.next();
 418             if(cd.hasFlags()) {
 419               Vector rootnodes=ta.getRootNodes(cd);
 420               if(rootnodes!=null) {
 421                 for(Iterator it_rootnodes=rootnodes.iterator(); it_rootnodes.hasNext();) {
 422                   FlagState root=(FlagState)it_rootnodes.next();
 423                   Vector allocatingTasks = root.getAllocatingTasks();
 424                   if(allocatingTasks != null) {
 425                     for(int k = 0; k < allocatingTasks.size(); k++) {
 426                       TaskDescriptor td = (TaskDescriptor)allocatingTasks.elementAt(k);
 427                       Vector<FEdge> fev = (Vector<FEdge>)ta.getFEdgesFromTD(td);
 428                       int numEdges = fev.size();
 429                       int total = 100;
 430                       for(int j = 0; j < numEdges; j++) {
 431                         FEdge pfe = fev.elementAt(j);
 432                         if(numEdges - j == 1) {
 433                           pfe.setProbability(total);
 434                         } else {
 435                           if((total != 0) && (total != 1)) {
 436                             do {
 437                               tint = r.nextInt()%total;
 438                             } while(tint <= 0);
 439                           }
 440                           pfe.setProbability(tint);
 441                           total -= tint;
 442                         }
 443                         //do {
 444                         //   tint = r.nextInt()%10;
 445                         //  } while(tint <= 0);
 446                         //int newRate = tint;
 447                         //int newRate = (j+1)%2+1;
 448                         int newRate = 1;
 449                         String cdname = cd.getSymbol();
 450                         if((cdname.equals("SeriesRunner")) ||
 451                            (cdname.equals("MDRunner")) ||
 452                            (cdname.equals("Stage")) ||
 453                            (cdname.equals("AppDemoRunner")) ||
 454                            (cdname.equals("FilterBankAtom"))) {
 455                           newRate = 16;
 456                         } else if(cdname.equals("SentenceParser")) {
 457                           newRate = 4;
 458                         }
 459                         //do {
 460                         //    tint = r.nextInt()%100;
 461                         //   } while(tint <= 0);
 462                         //   int probability = tint;
 463                         int probability = 100;
 464                         pfe.addNewObjInfo(cd, newRate, probability);
 465                       }
 466                     }
 467                   }
 468                 }
 469               }
 470
 471               Iterator it_flags = ta.getFlagStates(cd).iterator();
 472               while(it_flags.hasNext()) {
 473                 FlagState fs = (FlagState)it_flags.next();
 474                 Iterator it_edges = fs.edges();
 475                 int total = 100;
 476                 while(it_edges.hasNext()) {
 477                   //do {
 478                   //    tint = r.nextInt()%10;
 479                   //   } while(tint <= 0);
 480                   tint = 3;
 481                   FEdge edge = (FEdge)it_edges.next();
 482                   edge.setExeTime(tint);
 483                   if((fs.getClassDescriptor().getSymbol().equals("MD")) && (edge.getTask().getSymbol().equals("t6"))) {
 484                     if(edge.isbackedge()) {
 485                       if(edge.getTarget().equals(edge.getSource())) {
 486                         edge.setProbability(93.75);
 487                       } else {
 488                         edge.setProbability(3.125);
 489                       }
 490                     } else {
 491                       edge.setProbability(3.125);
 492                     }
 493                     continue;
 494                   }
 495                   if(!it_edges.hasNext()) {
 496                     edge.setProbability(total);
 497                   } else {
 498                     if((total != 0) && (total != 1)) {
 499                       do {
 500                         tint = r.nextInt()%total;
 501                       } while(tint <= 0);
 502                     }
 503                     edge.setProbability(tint);
 504                     total -= tint;
 505                   }
 506                 }
 507               }
 508             }
 509           }
 510         }
 511
 512         // Use ownership analysis to get alias information
 513         CallGraph callGraph = new CallGraph(state);
 514         OwnershipAnalysis oa = new OwnershipAnalysis(state,
 515                                                      tu,
 516                                                      callGraph,
 517                                                      state.OWNERSHIPALLOCDEPTH,
 518                                                      state.OWNERSHIPWRITEDOTS,
 519                                                      state.OWNERSHIPWRITEALL,
 520                                                      state.OWNERSHIPALIASFILE);
 521
 522         // Save the current standard input, output, and error streams
 523         // for later restoration.
 524         PrintStream origOut = System.out;
 525
 526         // Create a new output stream for the standard output.
 527         PrintStream stdout  = null;
 528         try {
 529           stdout = new PrintStream(new FileOutputStream("SimulatorResult.out"));
 530         } catch (Exception e) {
 531           // Sigh.  Couldn't open the file.
 532           System.out.println("Redirect:  Unable to open output file!");
 533           System.exit(1);
 534         }
 535
 536         // Print stuff to the original output and error streams.
 537         // On most systems all of this will end up on your console when you
 538         // run this application.
 539         //origOut.println ("\nRedirect:  Round #1");
 540         //System.out.println ("Test output via 'System.out'.");
 541         //origOut.println ("Test output via 'origOut' reference.");
 542
 543         // Set the System out and err streams to use our replacements.
 544         System.setOut(stdout);
 545
 546         // Print stuff to the original output and error streams.
 547         // The stuff printed through the 'origOut' and 'origErr' references
 548         // should go to the console on most systems while the messages
 549         // printed through the 'System.out' and 'System.err' will end up in
 550         // the files we created for them.
 551         //origOut.println ("\nRedirect:  Round #2");
 552         //System.out.println ("Test output via 'SimulatorResult.out'.");
 553         //origOut.println ("Test output via 'origOut' reference.");
 554
 555         // generate multiple schedulings
 556         ScheduleAnalysis scheduleAnalysis = new ScheduleAnalysis(state, ta);
 557         scheduleAnalysis.preSchedule();
 558         scheduleAnalysis.scheduleAnalysis();
 559         //scheduleAnalysis.setCoreNum(scheduleAnalysis.getSEdges4Test().size());
 560         scheduleAnalysis.setCoreNum(state.CORENUM);
 561         scheduleAnalysis.schedule();
 562
 563         //simulate these schedulings
 564         ScheduleSimulator scheduleSimulator = new ScheduleSimulator(scheduleAnalysis.getCoreNum(), state, ta);
 565         Iterator it_scheduling = scheduleAnalysis.getSchedulingsIter();
 566         int index = 0;
 567         Vector<Integer> selectedScheduling = new Vector<Integer>();
 568         int processTime = Integer.MAX_VALUE;
 569         while(it_scheduling.hasNext()) {
 570           Vector<Schedule> scheduling = (Vector<Schedule>)it_scheduling.next();
 571           scheduleSimulator.setScheduling(scheduling);
 572           int tmpTime = scheduleSimulator.process();
 573           if(tmpTime < processTime) {
 574             selectedScheduling.clear();
 575             selectedScheduling.add(index);
 576             processTime = tmpTime;
 577           } else if(tmpTime == processTime) {
 578             selectedScheduling.add(index);
 579           }
 580           index++;
 581         }
 582         System.out.print("Selected schedulings with least exectution time " + processTime + ": \n\t");
 583         for(int i = 0; i < selectedScheduling.size(); i++) {
 584           System.out.print((selectedScheduling.elementAt(i) + 1) + ", ");
 585         }
 586         System.out.println();
 587
 588         /*ScheduleSimulator scheduleSimulator = new ScheduleSimulator(4, state, ta);
 589            Vector<Schedule> scheduling = new Vector<Schedule>();
 590            for(int i = 0; i < 4; i++) {
 591             Schedule schedule = new Schedule(i);
 592             scheduling.add(schedule);
 593            }
 594            Iterator it_tasks = state.getTaskSymbolTable().getAllDescriptorsIterator();
 595            while(it_tasks.hasNext()) {
 596             TaskDescriptor td = (TaskDescriptor)it_tasks.next();
 597             if(td.getSymbol().equals("t10")) {
 598                 scheduling.elementAt(1).addTask(td);
 599             } else {
 600                 scheduling.elementAt(0).addTask(td);
 601             }
 602            }
 603            ClassDescriptor cd = (ClassDescriptor)state.getClassSymbolTable().get("E");
 604            scheduling.elementAt(0).addTargetCore(cd, 1);
 605            scheduleSimulator.setScheduling(scheduling);
 606            scheduleSimulator.process();
 607
 608            Vector<Schedule> scheduling1 = new Vector<Schedule>();
 609            for(int i = 0; i < 4; i++) {
 610             Schedule schedule = new Schedule(i);
 611             scheduling1.add(schedule);
 612            }
 613            Iterator it_tasks1 = state.getTaskSymbolTable().getAllDescriptorsIterator();
 614            while(it_tasks1.hasNext()) {
 615             TaskDescriptor td = (TaskDescriptor)it_tasks1.next();
 616             scheduling1.elementAt(0).addTask(td);
 617            }
 618            scheduleSimulator.setScheduling(scheduling1);
 619            scheduleSimulator.process();*/
 620
 621         // Close the streams.
 622         try {
 623           stdout.close();
 624           System.setOut(origOut);
 625         } catch (Exception e) {
 626           origOut.println("Redirect:  Unable to close files!");
 627         }
 628
 629         if(state.MULTICORE) {
 630           //it_scheduling = scheduleAnalysis.getSchedulingsIter();
 631           //Vector<Schedule> scheduling = (Vector<Schedule>)it_scheduling.next();
 632           Vector<Schedule> scheduling = scheduleAnalysis.getSchedulings().elementAt(selectedScheduling.lastElement());
 633           BuildCodeMultiCore bcm=new BuildCodeMultiCore(state, bf.getMap(), tu, sa, scheduling, scheduleAnalysis.getCoreNum(), pa);
 634           bcm.setOwnershipAnalysis(oa);
 635           bcm.buildCode();
 636         }
 637       }
 638
 639     }
 640
 641     if(!state.MULTICORE) {
 642       if (state.DSM) {
 643         CallGraph callgraph=new CallGraph(state);
 644         if (state.PREFETCH) {
 645           //speed up prefetch generation using locality analysis results
 646           LocalityAnalysis la=new LocalityAnalysis(state, callgraph, tu);
 647           pa=new PrefetchAnalysis(state, callgraph, tu, la);
 648         }
 649
 650         LocalityAnalysis la=new LocalityAnalysis(state, callgraph, tu);
 651         GenerateConversions gc=new GenerateConversions(la, state);
 652         BuildCode bc=new BuildCode(state, bf.getMap(), tu, la, pa);
 653         bc.buildCode();
 654       } else {
 655         BuildCode bc=new BuildCode(state, bf.getMap(), tu, sa, pa);
 656         bc.buildCode();
 657       }
 658     }
 659
 660     if (state.FLATIRGRAPH) {
 661       FlatIRGraph firg = new FlatIRGraph(state,
 662                                          state.FLATIRGRAPHTASKS,
 663                                          state.FLATIRGRAPHUSERMETHODS,
 664                                          state.FLATIRGRAPHLIBMETHODS);
 665     }
 666
 667     if (state.OWNERSHIP) {
 668       CallGraph callGraph = new CallGraph(state);
 669       OwnershipAnalysis oa = new OwnershipAnalysis(state,
 670                                                    tu,
 671                                                    callGraph,
 672                                                    state.OWNERSHIPALLOCDEPTH,
 673                                                    state.OWNERSHIPWRITEDOTS,
 674                                                    state.OWNERSHIPWRITEALL,
 675                                                    state.OWNERSHIPALIASFILE);
 676     }
 677
 678     System.exit(0);
 679   }
 680
 681   /** Reads in a source file and adds the parse tree to the state object. */
 682
 683   private static void readSourceFile(State state, String sourcefile) throws Exception {
 684     Reader fr = new BufferedReader(new FileReader(sourcefile));
 685     Lex.Lexer l = new Lex.Lexer(fr);
 686     java_cup.runtime.lr_parser g;
 687     g = new Parse.Parser(l);
 688     ParseNode p=null;
 689     try {
 690       p=(ParseNode) g./*debug_*/ parse().value;
 691     } catch (Exception e) {
 692       System.err.println("Error parsing file:"+sourcefile);
 693       e.printStackTrace();
 694       System.exit(-1);
 695     }
 696     state.addParseNode(p);
 697     if (l.numErrors()!=0) {
 698       System.out.println("Error parsing "+sourcefile);
 699       System.exit(l.numErrors());
 700     }
 701   }
 702 }