HLT/TPCLib/tracking-ca/AliHLTTPCCATracker.cxx

   1 // @(#) $Id$
   2 // **************************************************************************
   3 // This file is property of and copyright by the ALICE HLT Project          *
   4 // ALICE Experiment at CERN, All rights reserved.                           *
   5 //                                                                          *
   6 // Primary Authors: Sergey Gorbunov <sergey.gorbunov@kip.uni-heidelberg.de> *
   7 //                  Ivan Kisel <kisel@kip.uni-heidelberg.de>                *
   8 //                  for The ALICE HLT Project.                              *
   9 //                                                                          *
  10 // Permission to use, copy, modify and distribute this software and its     *
  11 // documentation strictly for non-commercial purposes is hereby granted     *
  12 // without fee, provided that the above copyright notice appears in all     *
  13 // copies and that both the copyright notice and this permission notice     *
  14 // appear in the supporting documentation. The authors make no claims       *
  15 // about the suitability of this software for any purpose. It is            *
  16 // provided "as is" without express or implied warranty.                    *
  17 //                                                                          *
  18 //***************************************************************************
  19
  20 #include "AliHLTTPCCATracker.h"
  21 #include "AliHLTTPCCARow.h"
  22 #include "AliHLTTPCCATrack.h"
  23 #include "AliHLTTPCCATracklet.h"
  24 #include "AliHLTTPCCAMath.h"
  25 #include "MemoryAssignmentHelpers.h"
  26
  27 #include "TStopwatch.h"
  28 #include "AliHLTTPCCAHitArea.h"
  29 #include "AliHLTTPCCANeighboursFinder.h"
  30 #include "AliHLTTPCCANeighboursCleaner.h"
  31 #include "AliHLTTPCCAStartHitsFinder.h"
  32 #include "AliHLTTPCCATrackletConstructor.h"
  33 #include "AliHLTTPCCATrackletSelector.h"
  34 #include "AliHLTTPCCAProcess.h"
  35 #include "AliHLTTPCCAClusterData.h"
  36
  37 #include "AliHLTTPCCATrackParam.h"
  38
  39 #include "AliHLTTPCCAGPUConfig.h"
  40
  41 #if !defined(HLTCA_GPUCODE)
  42 #include <iostream>
  43 #include <iomanip>
  44 #include <string.h>
  45 #endif
  46
  47 //#define DRAW1
  48
  49 #ifdef DRAW1
  50 #include "AliHLTTPCCADisplay.h"
  51 #endif //DRAW1
  52
  53 #ifdef HLTCA_INTERNAL_PERFORMANCE
  54 //#include "AliHLTTPCCAPerformance.h"
  55 #endif
  56
  57 ClassImp( AliHLTTPCCATracker )
  58
  59 #if !defined(HLTCA_GPUCODE)
  60
  61 AliHLTTPCCATracker::~AliHLTTPCCATracker()
  62 {
  63         // destructor
  64         if (!fIsGPUTracker)
  65         {
  66                 if (fCommonMem) delete fCommonMem;
  67                 if (fHitMemory) delete[] fHitMemory;
  68                 if (fTrackletMemory) delete[] fTrackletMemory;
  69                 if (fTrackMemory) delete[] fTrackMemory;
  70                 fCommonMem = NULL;
  71                 fHitMemory = fTrackMemory = NULL;
  72         }
  73 #ifdef HLTCA_STANDALONE
  74         if (fLinkTmpMemory) delete[] fLinkTmpMemory;
  75 #endif
  76 }
  77
  78 // ----------------------------------------------------------------------------------
  79 void AliHLTTPCCATracker::Initialize( const AliHLTTPCCAParam &param )
  80 {
  81         // initialisation
  82         fParam = param;
  83         fParam.Update();
  84         fData.InitializeRows( fParam );
  85
  86         StartEvent();
  87 }
  88
  89 void AliHLTTPCCATracker::StartEvent()
  90 {
  91         // start new event and fresh the memory
  92
  93         SetupCommonMemory();
  94 }
  95
  96 void AliHLTTPCCATracker::SetGPUTracker()
  97 {
  98         //Make this a GPU Tracker
  99         fIsGPUTracker = true;
 100         fData.SetGpuSliceData();
 101 }
 102
 103 char* AliHLTTPCCATracker::SetGPUTrackerCommonMemory(char* const pGPUMemory)
 104 {
 105         //Set up common Memory Pointer for GPU Tracker
 106         fCommonMem = (commonMemoryStruct*) pGPUMemory;
 107         return(pGPUMemory + sizeof(commonMemoryStruct));
 108 }
 109
 110
 111 char* AliHLTTPCCATracker::SetGPUTrackerHitsMemory(char* pGPUMemory, int MaxNHits)
 112 {
 113         //Set up Hits Memory Pointers for GPU Tracker
 114         fHitMemory = (char*) pGPUMemory;
 115         SetPointersHits(MaxNHits);
 116         pGPUMemory += fHitMemorySize;
 117         AssignMemory(fTrackletTmpStartHits, pGPUMemory, NHitsTotal());
 118         AssignMemory(fRowStartHitCountOffset, pGPUMemory, Param().NRows());
 119
 120         return(pGPUMemory);
 121 }
 122
 123 char* AliHLTTPCCATracker::SetGPUTrackerTrackletsMemory(char* pGPUMemory, int MaxNTracks, int
 124 #ifndef HLTCA_GPU_ALTERNATIVE_SCHEDULER
 125 constructorBlockCount
 126 #endif
 127 )
 128 {
 129         //Set up Tracklet Memory Pointers for GPU Tracker
 130         fTrackletMemory = (char*) pGPUMemory;
 131         SetPointersTracklets(MaxNTracks);
 132         pGPUMemory += fTrackletMemorySize;
 133 #ifndef HLTCA_GPU_ALTERNATIVE_SCHEDULER
 134         AssignMemory(fGPUTrackletTemp, pGPUMemory, MaxNTracks);
 135         AssignMemory(fRowBlockTracklets, pGPUMemory, MaxNTracks * 2 * (Param().NRows() / HLTCA_GPU_SCHED_ROW_STEP + 1));
 136         AssignMemory(fRowBlockPos, pGPUMemory, 2 * (Param().NRows() / HLTCA_GPU_SCHED_ROW_STEP + 1));
 137         AssignMemory(fBlockStartingTracklet, pGPUMemory, constructorBlockCount);
 138 #endif
 139
 140         return(pGPUMemory);
 141 }
 142
 143 char* AliHLTTPCCATracker::SetGPUTrackerTracksMemory(char* pGPUMemory, int MaxNTracks, int MaxNHits )
 144 {
 145         //Set up Tracks Memory Pointer for GPU Tracker
 146         fTrackMemory = (char*) pGPUMemory;
 147         SetPointersTracks(MaxNTracks, MaxNHits);
 148         pGPUMemory += fTrackMemorySize;
 149
 150         return(pGPUMemory);
 151 }
 152
 153 void AliHLTTPCCATracker::DumpOutput(FILE* out)
 154 {
 155         fprintf(out, "Slice %d\n", fParam.ISlice());
 156         const AliHLTTPCCASliceOutTrack* track = (*(Output()))->GetFirstTrack();
 157         for (int j = 0;j < (*(Output()))->NTracks();j++)
 158         {
 159                 fprintf(out, "Track %d (%d): ", j, track->NClusters());
 160                 for (int k = 0;k < track->NClusters();k++)
 161                 {
 162                         fprintf(out, "(%2.3f,%2.3f,%2.4f) ", track->Cluster(k).GetX(), track->Cluster(k).GetY(), track->Cluster(k).GetZ());
 163                 }
 164                 fprintf(out, " - (%8.5f %8.5f %8.5f %8.5f %8.5f)", track->Param().Y(), track->Param().Z(), track->Param().SinPhi(), track->Param().DzDs(), track->Param().QPt());
 165                 fprintf(out, "\n");
 166                 track = track->GetNextTrack();
 167         }
 168 }
 169
 170 void AliHLTTPCCATracker::DumpSliceData(std::ostream &out)
 171 {
 172         //Dump Slice Input Data to File
 173         out << "Slice Data (Slice" << Param().ISlice() << "):" << std::endl;
 174         for (int i = 0;i < Param().NRows();i++)
 175         {
 176                 if (Row(i).NHits() == 0) continue;
 177                 out << "Row: " << i << std::endl;
 178                 for (int j = 0;j < Row(i).NHits();j++)
 179                 {
 180                         if (j && j % 16 == 0) out << std::endl;
 181                         out << j << '-' << Data().HitDataY(Row(i), j) << '-' << Data().HitDataZ(Row(i), j) << ", ";
 182                 }
 183                 out << std::endl;
 184         }
 185 }
 186
 187 void AliHLTTPCCATracker::DumpLinks(std::ostream &out)
 188 {
 189         //Dump Links (after Neighbours Finder / Cleaner) to file
 190         out << "Hit Links(Slice" << Param().ISlice() << "):" << std::endl;
 191         for (int i = 0;i < Param().NRows();i++)
 192         {
 193                 if (Row(i).NHits() == 0) continue;
 194                 out << "Row: " << i << std::endl;
 195                 for (int j = 0;j < Row(i).NHits();j++)
 196                 {
 197                         if (j && j % 32 == 0) out << std::endl;
 198                         out << HitLinkUpData(Row(i), j) << "/" << HitLinkDownData(Row(i), j) << ", ";
 199                 }
 200                 out << std::endl;
 201         }
 202 }
 203
 204 void AliHLTTPCCATracker::DumpHitWeights(std::ostream &out)
 205 {
 206         //dump hit weights to file
 207         out << "Hit Weights(Slice" << Param().ISlice() << "):" << std::endl;
 208         for (int i = 0;i < Param().NRows();i++)
 209         {
 210                 if (Row(i).NHits() == 0) continue;
 211                 out << "Row: " << i << ":" << std::endl;
 212                 for (int j = 0;j < Row(i).NHits();j++)
 213                 {
 214                         if (j && j % 32 == 0) out << std::endl;
 215                         out << HitWeight(Row(i), j) << ", ";
 216                 }
 217                 out << std::endl;
 218         }
 219 }
 220
 221 int AliHLTTPCCATracker::StarthitSortComparison(const void*a, const void* b)
 222 {
 223         //qsort helper function to sort start hits
 224         AliHLTTPCCAHitId* aa = (AliHLTTPCCAHitId*) a;
 225         AliHLTTPCCAHitId* bb = (AliHLTTPCCAHitId*) b;
 226
 227         if (aa->RowIndex() != bb->RowIndex()) return(aa->RowIndex() - bb->RowIndex());
 228         return(aa->HitIndex() - bb->HitIndex());
 229 }
 230
 231 void AliHLTTPCCATracker::DumpStartHits(std::ostream &out)
 232 {
 233         //sort start hits and dump to file
 234         out << "Start Hits: (Slice" << Param().ISlice() << ") (" << *NTracklets() << ")" << std::endl;
 235 #ifdef HLTCA_GPU_SORT_DUMPDATA
 236         qsort(TrackletStartHits(), *NTracklets(), sizeof(AliHLTTPCCAHitId), StarthitSortComparison);
 237 #endif
 238         for (int i = 0;i < *NTracklets();i++)
 239         {
 240                 out << TrackletStartHit(i).RowIndex() << "-" << TrackletStartHit(i).HitIndex() << std::endl;
 241         }
 242         out << std::endl;
 243 }
 244
 245 void AliHLTTPCCATracker::DumpTrackHits(std::ostream &out)
 246 {
 247         //dump tracks to file
 248         out << "Tracks: (Slice" << Param().ISlice() << ") (" << *NTracks() << ")" << std::endl;
 249 #ifdef HLTCA_GPU_SORT_DUMPDATA
 250         for (int k = 0;k < Param().NRows();k++)
 251         {
 252                 for (int l = 0;l < Row(k).NHits();l++)
 253                 {
 254 #endif
 255                         for (int j = 0;j < *NTracks();j++)
 256                         {
 257                                 if (Tracks()[j].NHits() == 0 || !Tracks()[j].Alive()) continue;
 258 #ifdef HLTCA_GPU_SORT_DUMPDATA
 259                                 if (TrackHits()[Tracks()[j].FirstHitID()].RowIndex() == k && TrackHits()[Tracks()[j].FirstHitID()].HitIndex() == l)
 260                                 {
 261 #endif
 262                                         for (int i = 0;i < Tracks()[j].NHits();i++)
 263                                         {
 264                                                 out << TrackHits()[Tracks()[j].FirstHitID() + i].RowIndex() << "-" << TrackHits()[Tracks()[j].FirstHitID() + i].HitIndex() << ", ";
 265                                         }
 266 #ifndef BITWISE_COMPATIBLE_DEBUG_OUTPUT
 267                                         out << "(Track: " << j << ")";
 268 #endif
 269                                         out << std::endl;
 270 #ifdef HLTCA_GPU_SORT_DUMPDATA
 271                                 }
 272                         }
 273 #endif
 274                 }
 275 #ifdef HLTCA_GPU_SORT_DUMPDATA
 276         }
 277 #endif
 278 }
 279
 280 void AliHLTTPCCATracker::DumpTrackletHits(std::ostream &out)
 281 {
 282         //dump tracklets to file
 283         int nTracklets = *NTracklets();
 284         if( nTracklets<0 ) nTracklets = 0;
 285         if( nTracklets>HLTCA_GPU_MAX_TRACKLETS ) nTracklets = HLTCA_GPU_MAX_TRACKLETS;
 286         out << "Tracklets: (Slice" << Param().ISlice() << ") (" << nTracklets << ")" << std::endl;
 287 #ifdef HLTCA_GPU_SORT_DUMPDATA
 288         AliHLTTPCCAHitId* tmpIds = new AliHLTTPCCAHitId[nTracklets];
 289         AliHLTTPCCATracklet* tmpTracklets = new AliHLTTPCCATracklet[nTracklets];
 290         memcpy(tmpIds, TrackletStartHits(), nTracklets * sizeof(AliHLTTPCCAHitId));
 291         memcpy(tmpTracklets, Tracklets(), nTracklets * sizeof(AliHLTTPCCATracklet));
 292 #ifdef EXTERN_ROW_HITS
 293         int* tmpHits = new int[nTracklets * Param().NRows()];
 294         memcpy(tmpHits, TrackletRowHits(), nTracklets * Param().NRows() * sizeof(int));
 295 #endif
 296         qsort(TrackletStartHits(), nTracklets, sizeof(AliHLTTPCCAHitId), StarthitSortComparison);
 297         for (int i = 0;i < nTracklets; i++ ){
 298                 for (int j = 0;j < nTracklets; j++ ){
 299                         if (tmpIds[i].RowIndex() == TrackletStartHit(j).RowIndex() && tmpIds[i].HitIndex() == TrackletStartHit(j).HitIndex() ){
 300                                 memcpy(&Tracklets()[j], &tmpTracklets[i], sizeof(AliHLTTPCCATracklet));
 301 #ifdef EXTERN_ROW_HITS
 302                                 if (tmpTracklets[i].NHits() ){
 303                                         for (int k = tmpTracklets[i].FirstRow();k <= tmpTracklets[i].LastRow();k++){
 304                                                 const int pos = k * nTracklets + j;
 305                                                 if (pos < 0 || pos >= HLTCA_GPU_MAX_TRACKLETS * fParam.NRows()){
 306                                                         printf("internal error\n");
 307                                                 } else {
 308                                                         fTrackletRowHits[pos] = tmpHits[k * nTracklets + i];
 309                                                 }
 310                                         }
 311                                 }
 312 #endif
 313                                 break;
 314                         }
 315                 }
 316         }
 317         delete[] tmpIds;
 318         delete[] tmpTracklets;
 319 #ifdef EXTERN_ROW_HITS
 320         delete[] tmpHits;
 321 #endif
 322 #endif
 323         for (int j = 0;j < nTracklets; j++ )
 324         {
 325                 out << "Tracklet " << std::setw(4) << j << " (Hits: " << std::setw(3) << Tracklets()[j].NHits() << ", Start: " << std::setw(3) << TrackletStartHit(j).RowIndex() << "-" << std::setw(3) << TrackletStartHit(j).HitIndex() << ", Rows: " << (Tracklets()[j].NHits() ? Tracklets()[j].FirstRow() : -1) << " - " << (Tracklets()[j].NHits() ? Tracklets()[j].LastRow() : -1) << ") ";
 326                 if (Tracklets()[j].NHits() == 0);
 327                 else if (Tracklets()[j].LastRow() > Tracklets()[j].FirstRow() && (Tracklets()[j].FirstRow() >= Param().NRows() || Tracklets()[j].LastRow() >= Param().NRows()))
 328                 {
 329 #ifdef HLTCA_STANDALONE
 330                         printf("\nError: Tracklet %d First %d Last %d Hits %d", j, Tracklets()[j].FirstRow(), Tracklets()[j].LastRow(), Tracklets()[j].NHits());
 331                         out << " (Error: Tracklet " << j << " First " << Tracklets()[j].FirstRow() << " Last " << Tracklets()[j].LastRow() << " Hits " << Tracklets()[j].NHits() << ") ";
 332                         for (int i = 0;i < Param().NRows();i++)
 333                         {
 334                                 //if (Tracklets()[j].RowHit(i) != -1)
 335 #ifdef EXTERN_ROW_HITS
 336                                 out << i << "-" << fTrackletRowHits[i * fCommonMem->fNTracklets + j] << ", ";
 337 #else
 338                                 out << i << "-" << Tracklets()[j].RowHit(i) << ", ";
 339 #endif
 340                         }
 341 #endif
 342                 }
 343                 else if (Tracklets()[j].NHits() && Tracklets()[j].LastRow() > Tracklets()[j].FirstRow())
 344                 {
 345                         int nHits = 0;;
 346                         for (int i = Tracklets()[j].FirstRow();i <= Tracklets()[j].LastRow();i++)
 347                         {
 348 #ifdef EXTERN_ROW_HITS
 349                                 if (fTrackletRowHits[i * fCommonMem->fNTracklets + j] != -1)
 350 #else
 351                                 if (Tracklets()[j].RowHit(i) != -1)
 352 #endif
 353                                 {
 354                                         nHits++;
 355                                 }
 356 #ifdef EXTERN_ROW_HITS
 357                                 out << i << "-" << fTrackletRowHits[i * fCommonMem->fNTracklets + j] << ", ";
 358 #else
 359                                 out << i << "-" << Tracklets()[j].RowHit(i) << ", ";
 360 #endif
 361                         }
 362                         if (nHits != Tracklets()[j].NHits())
 363                         {
 364                                 out << std::endl << "Wrong NHits!: Expected " << Tracklets()[j].NHits() << ", fount " << nHits;
 365                         }
 366                 }
 367                 out << std::endl;
 368         }
 369 }
 370
 371
 372 void AliHLTTPCCATracker::SetupCommonMemory()
 373 {
 374         // set up common memory
 375
 376         if (!fIsGPUTracker)
 377         {
 378                 if ( !fCommonMem ) {
 379                         // the 1600 extra bytes are not used unless fCommonMemorySize increases with a later event
 380                         //fCommonMemory = reinterpret_cast<char*> ( new uint4 [ fCommonMemorySize/sizeof( uint4 ) + 100] );
 381                         fCommonMem = new commonMemoryStruct;
 382                 }
 383
 384                 if (fHitMemory) delete[] fHitMemory;
 385                 if (fTrackletMemory) delete[] fTrackletMemory;
 386                 if (fTrackMemory) delete[] fTrackMemory;
 387         }
 388
 389         fHitMemory = fTrackletMemory = fTrackMemory = 0;
 390
 391         fData.Clear();
 392         fCommonMem->fNTracklets = 0;
 393         fCommonMem->fNTracks = 0 ;
 394         fCommonMem->fNTrackHits = 0;
 395 }
 396
 397 void AliHLTTPCCATracker::ReadEvent( AliHLTTPCCAClusterData *clusterData )
 398 {
 399         // read event
 400
 401         fClusterData = clusterData;
 402
 403         StartEvent();
 404
 405         //* Convert input hits, create grids, etc.
 406         fData.InitFromClusterData( *clusterData );
 407         {
 408                 if (!fIsGPUTracker)
 409                 {
 410                         SetPointersHits( fData.NumberOfHits() ); // to calculate the size
 411                         fHitMemory = reinterpret_cast<char*> ( new uint4 [ fHitMemorySize/sizeof( uint4 ) + 100] );
 412                 }
 413                 SetPointersHits( fData.NumberOfHits() ); // set pointers for hits
 414         }
 415 }
 416
 417 GPUhd() void  AliHLTTPCCATracker::SetPointersHits( int MaxNHits )
 418 {
 419         // set all pointers to the event memory
 420
 421         char *mem = fHitMemory;
 422
 423         // extra arrays for tpc clusters
 424
 425 #ifdef HLTCA_GPU_SORT_STARTHITS_2
 426         AssignMemory( fTrackletStartHits, mem, MaxNHits + 32);
 427 #else
 428         AssignMemory( fTrackletStartHits, mem, MaxNHits);
 429 #endif
 430
 431         // calculate the size
 432
 433         fHitMemorySize = mem - fHitMemory;
 434 }
 435
 436 GPUhd() void  AliHLTTPCCATracker::SetPointersTracklets( int MaxNTracklets )
 437 {
 438         // set all pointers to the tracklets memory
 439         char *mem = fTrackletMemory;
 440
 441         // memory for tracklets
 442
 443         AssignMemory( fTracklets, mem, MaxNTracklets );
 444 #ifdef EXTERN_ROW_HITS
 445         AssignMemory( fTrackletRowHits, mem, MaxNTracklets * Param().NRows());
 446 #endif
 447
 448         fTrackletMemorySize = mem - fTrackletMemory;
 449 }
 450
 451
 452 GPUhd() void  AliHLTTPCCATracker::SetPointersTracks( int MaxNTracks, int MaxNHits )
 453 {
 454         // set all pointers to the tracks memory
 455         char *mem = fTrackMemory;
 456
 457         // memory for selected tracks
 458
 459         AssignMemory( fTracks, mem, MaxNTracks );
 460         AssignMemory( fTrackHits, mem, 2 * MaxNHits );
 461
 462         // calculate the size
 463
 464         fTrackMemorySize = mem - fTrackMemory;
 465 }
 466
 467 GPUh() int AliHLTTPCCATracker::CheckEmptySlice() const
 468 {
 469         //Check if the Slice is empty, if so set the output apropriate and tell the reconstuct procesdure to terminate
 470         if ( NHitsTotal() < 1 ) {
 471                 {
 472                         AliHLTTPCCASliceOutput::Allocate(*fOutput, 0, 0, fOutputControl);
 473                         AliHLTTPCCASliceOutput* useOutput = *fOutput;
 474                         if (useOutput == NULL) return(1);
 475                         useOutput->SetNTracks( 0 );
 476                         useOutput->SetNTrackClusters( 0 );
 477                 }
 478
 479                 return 1;
 480         }
 481         return 0;
 482 }
 483
 484 void AliHLTTPCCATracker::RunNeighboursFinder()
 485 {
 486         //Run the CPU Neighbours Finder
 487         AliHLTTPCCAProcess<AliHLTTPCCANeighboursFinder>( Param().NRows(), 1, *this );
 488 }
 489
 490 void AliHLTTPCCATracker::RunNeighboursCleaner()
 491 {
 492         //Run the CPU Neighbours Cleaner
 493         AliHLTTPCCAProcess<AliHLTTPCCANeighboursCleaner>( Param().NRows() - 2, 1, *this );
 494 }
 495
 496 void AliHLTTPCCATracker::RunStartHitsFinder()
 497 {
 498         //Run the CPU Start Hits Finder
 499         AliHLTTPCCAProcess<AliHLTTPCCAStartHitsFinder>( Param().NRows() - 4, 1, *this );
 500 }
 501
 502 void AliHLTTPCCATracker::RunTrackletConstructor()
 503 {
 504         //Run CPU Tracklet Constructor
 505         AliHLTTPCCATrackletConstructor::AliHLTTPCCATrackletConstructorCPU(*this);
 506 }
 507
 508 void AliHLTTPCCATracker::RunTrackletSelector()
 509 {
 510         //Run CPU Tracklet Selector
 511         AliHLTTPCCAProcess<AliHLTTPCCATrackletSelector>( 1, fCommonMem->fNTracklets, *this );
 512 }
 513
 514 #ifdef HLTCA_STANDALONE
 515 void AliHLTTPCCATracker::StandalonePerfTime(int i)
 516 {
 517         //Query Performance Timer for Standalone Version of Tracker
 518         if (fGPUDebugLevel >= 1)
 519         {
 520                 StandaloneQueryTime(&fPerfTimers[i]);
 521         }
 522 }
 523 #else
 524 void AliHLTTPCCATracker::StandalonePerfTime(int /*i*/) {}
 525 #endif
 526
 527 GPUh() void AliHLTTPCCATracker::DoTracking()
 528 {
 529         fCommonMem->fNTracklets = fCommonMem->fNTracks = fCommonMem->fNTrackHits = 0;
 530
 531         if (fGPUDebugLevel >= 6)
 532         {
 533 #ifndef BITWISE_COMPATIBLE_DEBUG_OUTPUT
 534                 *fGPUDebugOut << std::endl << std::endl << "Slice: " << Param().ISlice() << std::endl;
 535                 *fGPUDebugOut << "Slice Data:" << std::endl;
 536 #endif
 537                 DumpSliceData(*fGPUDebugOut);
 538         }
 539
 540         StandalonePerfTime(1);
 541
 542         RunNeighboursFinder();
 543
 544         StandalonePerfTime(2);
 545
 546 #ifdef TRACKER_KEEP_TEMPDATA
 547         if (fLinkTmpMemory) delete[] fLinkTmpMemory;
 548         fLinkTmpMemory = new char[fData.MemorySize()];
 549         memcpy(fLinkTmpMemory, fData.Memory(), fData.MemorySize());
 550 #endif
 551
 552         if (fGPUDebugLevel >= 6) DumpLinks(*fGPUDebugOut);
 553
 554 #ifdef HLTCA_INTERNAL_PERFORMANCE
 555         //if( Param().ISlice()<=2 )
 556         //AliHLTTPCCAPerformance::Instance().LinkPerformance( Param().ISlice() );
 557 #endif
 558
 559
 560 #ifdef DRAW1
 561         if ( NHitsTotal() > 0 ) {
 562                 AliHLTTPCCADisplay::Instance().DrawSliceLinks( -1, -1, 1 );
 563                 AliHLTTPCCADisplay::Instance().Ask();
 564         }
 565 #endif //DRAW1
 566
 567         RunNeighboursCleaner();
 568
 569         StandalonePerfTime(3);
 570
 571         if (fGPUDebugLevel >= 6) DumpLinks(*fGPUDebugOut);
 572
 573         RunStartHitsFinder();
 574
 575         StandalonePerfTime(4);
 576         StandalonePerfTime(5);
 577
 578         if (fGPUDebugLevel >= 6) DumpStartHits(*fGPUDebugOut);
 579
 580         fData.ClearHitWeights();
 581
 582         if (!fIsGPUTracker)
 583         {
 584                 SetPointersTracklets( fCommonMem->fNTracklets * 2 ); // to calculate the size
 585                 fTrackletMemory = reinterpret_cast<char*> ( new uint4 [ fTrackletMemorySize/sizeof( uint4 ) + 100] );
 586                 SetPointersTracks( fCommonMem->fNTracklets * 2, NHitsTotal() ); // to calculate the size
 587                 fTrackMemory = reinterpret_cast<char*> ( new uint4 [ fTrackMemorySize/sizeof( uint4 ) + 100] );
 588         }
 589
 590         SetPointersTracklets( fCommonMem->fNTracklets * 2 ); // set pointers for hits
 591         SetPointersTracks( fCommonMem->fNTracklets * 2, NHitsTotal() ); // set pointers for hits
 592
 593         StandalonePerfTime(6);
 594         StandalonePerfTime(7);
 595
 596         RunTrackletConstructor();
 597
 598         StandalonePerfTime(8);
 599
 600         if (fGPUDebugLevel >= 6) DumpTrackletHits(*fGPUDebugOut);
 601 #ifndef BITWISE_COMPATIBLE_DEBUG_OUTPUT
 602         if (fGPUDebugLevel >= 6) DumpHitWeights(*fGPUDebugOut);
 603 #endif
 604
 605         //std::cout<<"Slice "<<Param().ISlice()<<": NHits="<<NHitsTotal()<<", NTracklets="<<*NTracklets()<<std::endl;
 606
 607         RunTrackletSelector();
 608
 609         StandalonePerfTime(9);
 610
 611         //std::cout<<"Slice "<<Param().ISlice()<<": N start hits/tracklets/tracks = "<<nStartHits<<" "<<nStartHits<<" "<<*fNTracks<<std::endl;
 612
 613         if (fGPUDebugLevel >= 6) DumpTrackHits(*fGPUDebugOut);
 614
 615         //std::cout<<"Memory used for slice "<<fParam.ISlice()<<" : "<<fCommonMemorySize/1024./1024.<<" + "<<fHitMemorySize/1024./1024.<<" + "<<fTrackMemorySize/1024./1024.<<" = "<<( fCommonMemorySize+fHitMemorySize+fTrackMemorySize )/1024./1024.<<" Mb "<<std::endl;
 616 }
 617
 618 GPUh() void AliHLTTPCCATracker::Reconstruct()
 619 {
 620         //* reconstruction of event
 621         //std::cout<<"Reconstruct slice "<<fParam.ISlice()<<", nHits="<<NHitsTotal()<<std::endl;
 622
 623         fTimers[0] = 0; // find neighbours
 624         fTimers[1] = 0; // construct tracklets
 625         fTimers[2] = 0; // fit tracklets
 626         fTimers[3] = 0; // prolongation of tracklets
 627         fTimers[4] = 0; // selection
 628         fTimers[5] = 0; // write output
 629         fTimers[6] = 0;
 630         fTimers[7] = 0;
 631
 632         //if( fParam.ISlice()<1 ) return; //SG!!!
 633
 634         TStopwatch timer0;
 635
 636         if (CheckEmptySlice()) return;
 637
 638 #ifdef DRAW1
 639         //if( fParam.ISlice()==2 || fParam.ISlice()==3)
 640         {
 641                 AliHLTTPCCADisplay::Instance().ClearView();
 642                 AliHLTTPCCADisplay::Instance().SetSliceView();
 643                 AliHLTTPCCADisplay::Instance().SetCurrentSlice( this );
 644                 AliHLTTPCCADisplay::Instance().DrawSlice( this, 1 );
 645                 if ( NHitsTotal() > 0 ) {
 646                         AliHLTTPCCADisplay::Instance().DrawSliceHits( kRed, .5 );
 647                         AliHLTTPCCADisplay::Instance().Ask();
 648                 }
 649         }
 650 #endif //DRAW1
 651
 652         DoTracking();
 653         fTimers[0] = timer0.CpuTime() / 100.;
 654 }
 655
 656 GPUh() void AliHLTTPCCATracker::ReconstructOutput()
 657 {
 658         TStopwatch timer0;
 659         WriteOutputPrepare();
 660         WriteOutput();
 661
 662         StandalonePerfTime(10);
 663
 664 #ifdef DRAW1
 665         {
 666                 AliHLTTPCCADisplay &disp = AliHLTTPCCADisplay::Instance();
 667                 AliHLTTPCCATracker &slice = *this;
 668                 std::cout << "N out tracks = " << slice.NOutTracks() << std::endl;
 669                 AliHLTTPCCADisplay::Instance().SetSliceView();
 670                 AliHLTTPCCADisplay::Instance().SetCurrentSlice( this );
 671                 AliHLTTPCCADisplay::Instance().DrawSlice( this, 1 );
 672                 disp.DrawSliceHits( kRed, .5 );
 673                 disp.Ask();
 674                 for ( int itr = 0; itr < slice.NOutTracks(); itr++ ) {
 675                         std::cout << "track N " << itr << ", nhits=" << slice.OutTracks()[itr].NHits() << std::endl;
 676                         disp.DrawSliceOutTrack( itr, kBlue );
 677                         //disp.Ask();
 678                         //int id = slice.OutTracks()[itr].OrigTrackID();
 679                         //AliHLTTPCCATrack &tr = Tracks()[id];
 680                         //for( int ih=0; ih<tr.NHits(); ih++ ){
 681                         //int ic = (fTrackHits[tr.FirstHitID()+ih]);
 682                         //std::cout<<ih<<" "<<ID2IRow(ic)<<" "<<ID2IHit(ic)<<std::endl;
 683                         //}
 684                         //disp.DrawSliceTrack( id, kBlue );
 685                         //disp.Ask();
 686                 }
 687                 disp.Ask();
 688         }
 689 #endif //DRAW1
 690
 691         timer0.Stop();
 692         fTimers[0] += timer0.CpuTime() / 100.;
 693 }
 694
 695 GPUh() void AliHLTTPCCATracker::WriteOutputPrepare()
 696 {
 697         if (fOutputControl == NULL) fOutputControl = new AliHLTTPCCASliceOutput::outputControlStruct;
 698         AliHLTTPCCASliceOutput::Allocate(*fOutput, fCommonMem->fNTracks, fCommonMem->fNTrackHits, fOutputControl);
 699 }
 700
 701 GPUh() int AliHLTTPCCATracker::SortComparison(const void* a, const void* b)
 702 {
 703         return(((trackSortData*) a)->fSortVal < ((trackSortData*) b)->fSortVal ? 1 : -1);
 704 }
 705
 706 GPUh() void AliHLTTPCCATracker::WriteOutput()
 707 {
 708         // write output
 709         AliHLTTPCCASliceOutput* useOutput = *fOutput;
 710
 711         TStopwatch timer;
 712
 713         //cout<<"output: nTracks = "<<*fNTracks<<", nHitsTotal="<<NHitsTotal()<<std::endl;
 714
 715         if (useOutput == NULL) return;
 716
 717         useOutput->SetNTracks( 0 );
 718         useOutput->SetNTrackClusters( 0 );
 719
 720         int nStoredHits = 0;
 721         int nStoredTracks = 0;
 722         int nStoredLocalTracks = 0;
 723
 724         AliHLTTPCCASliceOutTrack *out = useOutput->FirstTrack();
 725
 726         trackSortData* trackOrder = new trackSortData[fCommonMem->fNTracks];
 727         for (int i = 0;i < fCommonMem->fNTracks;i++)
 728         {
 729                 trackOrder[i].fTtrack = i % fCommonMem->fNTracks;
 730                 trackOrder[i].fSortVal = fTracks[trackOrder[i].fTtrack].NHits() / 1000.f + fTracks[trackOrder[i].fTtrack].Param().GetZ() * 100.f + fTracks[trackOrder[i].fTtrack].Param().GetY();
 731         }
 732         qsort(trackOrder, fCommonMem->fNLocalTracks, sizeof(trackSortData), SortComparison);
 733         qsort(trackOrder + fCommonMem->fNLocalTracks, fCommonMem->fNTracks - fCommonMem->fNLocalTracks, sizeof(trackSortData), SortComparison);
 734
 735         for ( int iTrTmp = 0; iTrTmp < fCommonMem->fNTracks; iTrTmp++ ) {
 736                 int iTr = trackOrder[iTrTmp].fTtrack;
 737                 AliHLTTPCCATrack &iTrack = fTracks[iTr];
 738
 739                 if( iTr < fCommonMem->fNLocalTracks && iTrack.NHits() < fParam.MinNTrackClusters() ) continue;
 740                 if( CAMath::Abs(iTrack.Param().GetQPt())> fParam.MaxTrackQPt() ) continue;
 741
 742                 out->SetParam( iTrack.Param() );
 743                 out->SetLocalTrackId( iTrack.LocalTrackId() );
 744                 int nClu = 0;
 745                 int iID = iTrack.FirstHitID();
 746
 747                 for ( int ith = 0; ith < iTrack.NHits(); ith++ ) {
 748                         const AliHLTTPCCAHitId &ic = fTrackHits[iID + ith];
 749                         int iRow = ic.RowIndex();
 750                         int ih = ic.HitIndex();
 751
 752                         const AliHLTTPCCARow &row = fData.Row( iRow );
 753
 754                         int clusterIndex = fData.ClusterDataIndex( row, ih );
 755                         int clusterRowIndex = clusterIndex - fClusterData->RowOffset( iRow );
 756
 757                         if ( clusterIndex < 0 || clusterIndex >= fClusterData->NumberOfClusters() ) {
 758                                 //std::cout << inpIDtot << ", " << fClusterData->NumberOfClusters()
 759                                 //<< "; " << inpID << ", " << fClusterData->NumberOfClusters( iRow ) << std::endl;
 760                                 //abort();
 761                                 continue;
 762                         }
 763                         if ( clusterRowIndex < 0 || clusterRowIndex >= fClusterData->NumberOfClusters( iRow ) ) {
 764                                 //std::cout << inpIDtot << ", " << fClusterData->NumberOfClusters()
 765                                 //<< "; " << inpID << ", " << fClusterData->NumberOfClusters( iRow ) << std::endl;
 766                                 //abort();
 767                                 continue;
 768                         }
 769
 770                         float origX = fClusterData->X( clusterIndex );
 771                         float origY = fClusterData->Y( clusterIndex );
 772                         float origZ = fClusterData->Z( clusterIndex );
 773                         int id = fClusterData->Id( clusterIndex );
 774                         AliHLTTPCCASliceOutCluster c;
 775                         c.Set( id, iRow, origX, origY, origZ );
 776                         out->SetCluster( nClu, c );
 777                         nClu++;
 778                 }
 779
 780                 nStoredTracks++;
 781                 if (iTr < fCommonMem->fNLocalTracks) nStoredLocalTracks++;
 782                 nStoredHits+=nClu;
 783                 out->SetNClusters( nClu );
 784                 out = out->NextTrack();
 785         }
 786         delete[] trackOrder;
 787
 788         useOutput->SetNTracks( nStoredTracks );
 789         useOutput->SetNLocalTracks( nStoredLocalTracks );
 790         useOutput->SetNTrackClusters( nStoredHits );
 791
 792         timer.Stop();
 793         fTimers[5] += timer.CpuTime();
 794 }
 795
 796 #endif
 797
 798 GPUh() void AliHLTTPCCATracker::FitTrackFull( const AliHLTTPCCATrack &/**/, float * /**/ ) const
 799 {
 800         // fit track with material
 801 #ifdef XXX
 802         //* Fit the track
 803         FitTrack( iTrack, tt0 );
 804         if ( iTrack.NHits() <= 3 ) return;
 805
 806         AliHLTTPCCATrackParam &t = iTrack.Param();
 807         AliHLTTPCCATrackParam t0 = t;
 808
 809         t.Chi2() = 0;
 810         t.NDF() = -5;
 811         bool first = 1;
 812
 813         int iID = iTrack.FirstHitID();
 814         for ( int ih = 0; ih < iTrack.NHits(); ih++, iID++ ) {
 815                 const AliHLTTPCCAHitId &ic = fTrackHits[iID];
 816                 int iRow = ic.rowIndex();
 817                 const AliHLTTPCCARow &row = fData.Row( iRow );
 818                 if ( !t0.TransportToX( row.X() ) ) continue;
 819                 float dy, dz;
 820                 const AliHLTTPCCAHit &h = ic.hitIndex();
 821
 822                 // check for wrong hits
 823                 if ( 0 ) {
 824                         dy = t0.GetY() - h.Y();
 825                         dz = t0.GetZ() - h.Z();
 826
 827                         //if( dy*dy > 3.5*3.5*(/*t0.GetErr2Y() + */h.ErrY()*h.ErrY() ) ) continue;//SG!!!
 828                         //if( dz*dz > 3.5*3.5*(/*t0.GetErr2Z() + */h.ErrZ()*h.ErrZ() ) ) continue;
 829                 }
 830
 831                 if ( !t.TransportToX( row.X() ) ) continue;
 832
 833                 //* Update the track
 834
 835                 if ( first ) {
 836                         t.Cov()[ 0] = .5 * .5;
 837                         t.Cov()[ 1] = 0;
 838                         t.Cov()[ 2] = .5 * .5;
 839                         t.Cov()[ 3] = 0;
 840                         t.Cov()[ 4] = 0;
 841                         t.Cov()[ 5] = .2 * .2;
 842                         t.Cov()[ 6] = 0;
 843                         t.Cov()[ 7] = 0;
 844                         t.Cov()[ 8] = 0;
 845                         t.Cov()[ 9] = .2 * .2;
 846                         t.Cov()[10] = 0;
 847                         t.Cov()[11] = 0;
 848                         t.Cov()[12] = 0;
 849                         t.Cov()[13] = 0;
 850                         t.Cov()[14] = .2 * .2;
 851                         t.Chi2() = 0;
 852                         t.NDF() = -5;
 853                 }
 854                 float err2Y, err2Z;
 855                 GetErrors2( iRow, t, err2Y, err2Z );
 856
 857                 if ( !t.Filter2( h.Y(), h.Z(), err2Y, err2Z ) ) continue;
 858
 859                 first = 0;
 860         }
 861         /*
 862         float cosPhi = iTrack.Param().GetCosPhi();
 863         p0.Param().TransportToX(ID2Row( iTrack.PointID()[0] ).X());
 864         p2.Param().TransportToX(ID2Row( iTrack.PointID()[1] ).X());
 865         if( p0.Param().GetCosPhi()*cosPhi<0 ){ // change direction
 866         float *par = p0.Param().Par();
 867         float *cov = p0.Param().Cov();
 868         par[2] = -par[2]; // sin phi
 869         par[3] = -par[3]; // DzDs
 870         par[4] = -par[4]; // kappa
 871         cov[3] = -cov[3];
 872         cov[4] = -cov[4];
 873         cov[6] = -cov[6];
 874         cov[7] = -cov[7];
 875         cov[10] = -cov[10];
 876         cov[11] = -cov[11];
 877         p0.Param().CosPhi() = -p0.Param().GetCosPhi();
 878         }
 879         */
 880 #endif
 881 }
 882
 883 GPUh() void AliHLTTPCCATracker::FitTrack( const AliHLTTPCCATrack &/*track*/, float * /*t0[]*/ ) const
 884 {
 885         //* Fit the track
 886 #ifdef XXX
 887         AliHLTTPCCAEndPoint &p2 = ID2Point( track.PointID()[1] );
 888         const AliHLTTPCCAHit &c0 = ID2Hit( fTrackHits[p0.TrackHitID()].HitID() );
 889         const AliHLTTPCCAHit &c1 = ID2Hit( fTrackHits[track.HitID()[1]].HitID() );
 890         const AliHLTTPCCAHit &c2 = ID2Hit( fTrackHits[p2.TrackHitID()].HitID() );
 891         const AliHLTTPCCARow &row0 = ID2Row( fTrackHits[p0.TrackHitID()].HitID() );
 892         const AliHLTTPCCARow &row1 = ID2Row( fTrackHits[track.HitID()[1]].HitID() );
 893         const AliHLTTPCCARow &row2 = ID2Row( fTrackHits[p2.TrackHitID()].HitID() );
 894         float sp0[5] = {row0.X(), c0.Y(), c0.Z(), c0.ErrY(), c0.ErrZ() };
 895         float sp1[5] = {row1.X(), c1.Y(), c1.Z(), c1.ErrY(), c1.ErrZ() };
 896         float sp2[5] = {row2.X(), c2.Y(), c2.Z(), c2.ErrY(), c2.ErrZ() };
 897         //std::cout<<"Fit track, points ="<<sp0[0]<<" "<<sp0[1]<<" / "<<sp1[0]<<" "<<sp1[1]<<" / "<<sp2[0]<<" "<<sp2[1]<<std::endl;
 898         if ( track.NHits() >= 3 ) {
 899                 p0.Param().ConstructXYZ3( sp0, sp1, sp2, p0.Param().CosPhi(), t0 );
 900                 p2.Param().ConstructXYZ3( sp2, sp1, sp0, p2.Param().CosPhi(), t0 );
 901                 //p2.Param() = p0.Param();
 902                 //p2.Param().TransportToX(row2.X());
 903                 //p2.Param().Par()[1] = -p2.Param().Par()[1];
 904                 //p2.Param().Par()[4] = -p2.Param().Par()[4];
 905         } else {
 906                 p0.Param().X() = row0.X();
 907                 p0.Param().Y() = c0.Y();
 908                 p0.Param().Z() = c0.Z();
 909                 p0.Param().Err2Y() = c0.ErrY() * c0.ErrY();
 910                 p0.Param().Err2Z() = c0.ErrZ() * c0.ErrZ();
 911                 p2.Param().X() = row2.X();
 912                 p2.Param().Y() = c2.Y();
 913                 p2.Param().Z() = c2.Z();
 914                 p2.Param().Err2Y() = c2.ErrY() * c2.ErrY();
 915                 p2.Param().Err2Z() = c2.ErrZ() * c2.ErrZ();
 916         }
 917 #endif
 918 }
 919
 920
 921 GPUdi() void AliHLTTPCCATracker::GetErrors2( int iRow, float z, float sinPhi, float cosPhi, float DzDs, float &Err2Y, float &Err2Z ) const
 922 {
 923         //
 924         // Use calibrated cluster error from OCDB
 925         //
 926
 927         fParam.GetClusterErrors2( iRow, z, sinPhi, cosPhi, DzDs, Err2Y, Err2Z );
 928         Err2Y*=fParam.ClusterError2CorrectionY();
 929         Err2Z*=fParam.ClusterError2CorrectionZ();
 930 }
 931
 932 GPUdi() void AliHLTTPCCATracker::GetErrors2( int iRow, const AliHLTTPCCATrackParam &t, float &Err2Y, float &Err2Z ) const
 933 {
 934         //
 935         // Use calibrated cluster error from OCDB
 936         //
 937
 938         fParam.GetClusterErrors2( iRow, t.GetZ(), t.SinPhi(), t.GetCosPhi(), t.DzDs(), Err2Y, Err2Z );
 939 }
 940
 941
 942 #if !defined(HLTCA_GPUCODE)
 943
 944 GPUh() void AliHLTTPCCATracker::WriteEvent( std::ostream &out )
 945 {
 946         // write event to the file
 947         for ( int iRow = 0; iRow < fParam.NRows(); iRow++ ) {
 948                 out << fData.Row( iRow ).HitNumberOffset() << " " << fData.Row( iRow ).NHits() << std::endl;
 949         }
 950         out << NHitsTotal() << std::endl;
 951
 952         AliHLTResizableArray<float> y( NHitsTotal() ), z( NHitsTotal() );
 953
 954         for ( int iRow = 0; iRow < fParam.NRows(); iRow++ ) {
 955                 const AliHLTTPCCARow &row = Row( iRow );
 956                 float y0 = row.Grid().YMin();
 957                 float z0 = row.Grid().ZMin();
 958                 float stepY = row.HstepY();
 959                 float stepZ = row.HstepZ();
 960                 for ( int ih = 0; ih < fData.Row( iRow ).NHits(); ih++ ) {
 961                         int id = HitInputID( row, ih );
 962                         y[id] = y0 + HitDataY( row, ih ) * stepY;
 963                         z[id] = z0 + HitDataZ( row, ih ) * stepZ;
 964                 }
 965         }
 966         for ( int ih = 0; ih < NHitsTotal(); ih++ ) {
 967                 out << y[ih] << " " << z[ih] << std::endl;
 968         }
 969 }
 970
 971 GPUh() void AliHLTTPCCATracker::WriteTracks( std::ostream &/*out*/ )
 972 {
 973         //* Write tracks to file --- dummy
 974 }
 975
 976 GPUh() void AliHLTTPCCATracker::ReadTracks( std::istream &/*in*/ )
 977 {
 978         //* Read tracks  from file -- dummy
 979 }
 980
 981 GPUh() int AliHLTTPCCATracker::PerformGlobalTrackingRun(AliHLTTPCCATracker& sliceNeighbour, int iTrack, int rowIndex, float angle, int direction)
 982 {
 983         /*for (int j = 0;j < fTracks[j].NHits();j++)
 984         {
 985                 printf("Hit %3d: Row %3d: X %3.7lf Y %3.7lf\n", j, fTrackHits[fTracks[iTrack].FirstHitID() + j].RowIndex(), Row(fTrackHits[fTracks[iTrack].FirstHitID() + j].RowIndex()).X(),
 986                 (float) Data().HitDataY(Row(fTrackHits[fTracks[iTrack].FirstHitID() + j].RowIndex()), fTrackHits[fTracks[iTrack].FirstHitID() + j].HitIndex()) * Row(fTrackHits[fTracks[iTrack].FirstHitID() + j].RowIndex()).HstepY() + Row(fTrackHits[fTracks[iTrack].FirstHitID() + j].RowIndex()).Grid().YMin());
 987                 }*/
 988
 989         if (sliceNeighbour.fCommonMem->fNTracklets == 0) return(0);
 990
 991         AliHLTTPCCATrackParam tParam;
 992         tParam.InitParam();
 993         tParam.SetCov( 0, 0.05 );
 994         tParam.SetCov( 2, 0.05 );
 995         tParam.SetCov( 5, 0.001 );
 996         tParam.SetCov( 9, 0.001 );
 997         tParam.SetCov( 14, 0.05 );
 998         tParam.SetParam(fTracks[iTrack].Param());
 999
1000         //printf("Parameters X %f Y %f Z %f SinPhi %f DzDs %f QPt %f SignCosPhi %f\n", tParam.X(), tParam.Y(), tParam.Z(), tParam.SinPhi(), tParam.DzDs(), tParam.QPt(), tParam.SignCosPhi());
1001         if (!tParam.Rotate(angle, .999)) return(0);
1002         //printf("Rotated X %f Y %f Z %f SinPhi %f DzDs %f QPt %f SignCosPhi %f\n", tParam.X(), tParam.Y(), tParam.Z(), tParam.SinPhi(), tParam.DzDs(), tParam.QPt(), tParam.SignCosPhi());
1003
1004         int maxRowGap = 6;
1005         do
1006         {
1007                 rowIndex += direction;
1008                 if (!tParam.TransportToX(sliceNeighbour.Row(rowIndex).X(), fParam.ConstBz(), .999)) {maxRowGap = 0;break;}
1009                 //printf("Transported X %f Y %f Z %f SinPhi %f DzDs %f QPt %f SignCosPhi %f (MaxY %f)\n", tParam.X(), tParam.Y(), tParam.Z(), tParam.SinPhi(), tParam.DzDs(), tParam.QPt(), tParam.SignCosPhi(), sliceNeighbour.Row(rowIndex).MaxY());
1010         } while (fabs(tParam.Y()) > sliceNeighbour.Row(rowIndex).MaxY() && --maxRowGap);
1011         if (maxRowGap == 0) return(0);
1012
1013         int nHits = AliHLTTPCCATrackletConstructor::AliHLTTPCCATrackletConstructorGlobalTracking(sliceNeighbour, tParam, rowIndex, direction);
1014         if (nHits >= GLOBAL_TRACKING_MIN_HITS)
1015         {
1016                 //printf("%d hits found\n", nHits);
1017                 AliHLTTPCCATrack& track = sliceNeighbour.fTracks[sliceNeighbour.fCommonMem->fNTracks];
1018                 if (direction == 1)
1019                 {
1020                         int i = 0;
1021                         while (i < nHits)
1022                         {
1023                                 if (sliceNeighbour.fTrackletRowHits[rowIndex * sliceNeighbour.fCommonMem->fNTracklets] != -1)
1024                                 {
1025                                         //printf("New track: entry %d, row %d, hitindex %d\n", i, rowIndex, sliceNeighbour.fTrackletRowHits[rowIndex * sliceNeighbour.fCommonMem->fNTracklets]);
1026                                         sliceNeighbour.fTrackHits[sliceNeighbour.fCommonMem->fNTrackHits + i].Set(rowIndex, sliceNeighbour.fTrackletRowHits[rowIndex * sliceNeighbour.fCommonMem->fNTracklets]);
1027                                         if (i == 0) tParam.TransportToX(sliceNeighbour.Row(rowIndex).X(), fParam.ConstBz(), .999);
1028                                         i++;
1029                                 }
1030                                 rowIndex ++;
1031                         }
1032                 }
1033                 else
1034                 {
1035                         int i = nHits - 1;
1036                         while (i >= 0)
1037                         {
1038                                 if (sliceNeighbour.fTrackletRowHits[rowIndex * sliceNeighbour.fCommonMem->fNTracklets] != -1)
1039                                 {
1040                                         //printf("New track: entry %d, row %d, hitindex %d\n", i, rowIndex, sliceNeighbour.fTrackletRowHits[rowIndex * sliceNeighbour.fCommonMem->fNTracklets]);
1041                                         sliceNeighbour.fTrackHits[sliceNeighbour.fCommonMem->fNTrackHits + i].Set(rowIndex, sliceNeighbour.fTrackletRowHits[rowIndex * sliceNeighbour.fCommonMem->fNTracklets]);
1042                                         i--;
1043                                 }
1044                                 rowIndex--;
1045                         }
1046                 }
1047                 track.SetAlive(1);
1048                 track.SetParam(tParam.GetParam());
1049                 track.SetNHits(nHits);
1050                 track.SetFirstHitID(sliceNeighbour.fCommonMem->fNTrackHits);
1051                 const int kMaxTrackIdInSlice = AliHLTTPCCASliceOutTrack::MaxTrackId();
1052                 track.SetLocalTrackId(fParam.ISlice() * kMaxTrackIdInSlice + fTracks[iTrack].LocalTrackId());
1053                 sliceNeighbour.fCommonMem->fNTracks++;
1054                 sliceNeighbour.fCommonMem->fNTrackHits += nHits;
1055                 return(1);
1056         }
1057         return(0);
1058 }
1059
1060 GPUh() void AliHLTTPCCATracker::PerformGlobalTracking(AliHLTTPCCATracker& sliceLeft, AliHLTTPCCATracker& sliceRight, int MaxTracks)
1061 {
1062         int ul = 0, ur = 0, ll = 0, lr = 0;
1063         for (int i = 0;i < fCommonMem->fNLocalTracks;i++)
1064         {
1065                 if (sliceLeft.fCommonMem->fNTracks >= MaxTracks || sliceRight.fCommonMem->fNTracks >= MaxTracks) return;
1066
1067                 {
1068                         const int tmpHit = fTracks[i].FirstHitID();
1069                         if (fTrackHits[tmpHit].RowIndex() >= GLOBAL_TRACKING_MIN_ROWS && fTrackHits[tmpHit].RowIndex() < GLOBAL_TRACKING_RANGE)
1070                         {
1071                                 int rowIndex = fTrackHits[tmpHit].RowIndex();
1072                                 const AliHLTTPCCARow& row = Row(rowIndex);
1073                                 float Y = (float) Data().HitDataY(row, fTrackHits[tmpHit].HitIndex()) * row.HstepY() + row.Grid().YMin();
1074                                 if (Y < -row.MaxY() * GLOBAL_TRACKING_Y_RANGE_LOWER_LEFT)
1075                                 {
1076                                         //printf("Track %d, lower row %d, left border (%f of %f)\n", i, fTrackHits[tmpHit].RowIndex(), Y, -row.MaxY());
1077                                         ll += PerformGlobalTrackingRun(sliceLeft, i, rowIndex, -fParam.DAlpha(), -1);
1078                                 }
1079                                 if (Y > row.MaxY() * GLOBAL_TRACKING_Y_RANGE_LOWER_RIGHT)
1080                                 {
1081                                         //printf("Track %d, lower row %d, right border (%f of %f)\n", i, fTrackHits[tmpHit].RowIndex(), Y, row.MaxY());
1082                                         lr += PerformGlobalTrackingRun(sliceRight, i, rowIndex, fParam.DAlpha(), -1);
1083                                 }
1084                         }
1085                 }
1086
1087                 {
1088                         const int tmpHit = fTracks[i].FirstHitID() + fTracks[i].NHits() - 1;
1089                         if (fTrackHits[tmpHit].RowIndex() < HLTCA_ROW_COUNT - GLOBAL_TRACKING_MIN_ROWS && fTrackHits[tmpHit].RowIndex() >= HLTCA_ROW_COUNT - GLOBAL_TRACKING_RANGE)
1090                         {
1091                                 int rowIndex = fTrackHits[tmpHit].RowIndex();
1092                                 const AliHLTTPCCARow& row = Row(rowIndex);
1093                                 float Y = (float) Data().HitDataY(row, fTrackHits[tmpHit].HitIndex()) * row.HstepY() + row.Grid().YMin();
1094                                 if (Y < -row.MaxY() * GLOBAL_TRACKING_Y_RANGE_UPPER_LEFT)
1095                                 {
1096                                         //printf("Track %d, upper row %d, left border (%f of %f)\n", i, fTrackHits[tmpHit].RowIndex(), Y, -row.MaxY());
1097                                         ul += PerformGlobalTrackingRun(sliceLeft, i, rowIndex, -fParam.DAlpha(), 1);
1098                                 }
1099                                 if (Y > row.MaxY() * GLOBAL_TRACKING_Y_RANGE_UPPER_RIGHT)
1100                                 {
1101                                         //printf("Track %d, upper row %d, right border (%f of %f)\n", i, fTrackHits[tmpHit].RowIndex(), Y, row.MaxY());
1102                                         ur += PerformGlobalTrackingRun(sliceRight, i, rowIndex, fParam.DAlpha(), 1);
1103                                 }
1104                         }
1105                 }
1106         }
1107         //printf("Global Tracking Result: Slide %2d: LL %3d LR %3d UL %3d UR %3d\n", fParam.ISlice(), ll, lr, ul, ur);
1108 }
1109
1110 #endif