propagating patches from the online system
[u/mrichter/AliRoot.git] / HLT / TPCLib / AliHLTTPCdEdxComponent.cxx
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0973c527 1// **************************************************************************
2// This file is property of and copyright by the ALICE HLT Project *
3// ALICE Experiment at CERN, All rights reserved. *
4// *
5// Primary Authors: Sergey Gorbunov <sergey.gorbunov@kip.uni-heidelberg.de> *
6// for The ALICE HLT Project. *
7// *
8// Permission to use, copy, modify and distribute this software and its *
9// documentation strictly for non-commercial purposes is hereby granted *
10// without fee, provided that the above copyright notice appears in all *
11// copies and that both the copyright notice and this permission notice *
12// appear in the supporting documentation. The authors make no claims *
13// about the suitability of this software for any purpose. It is *
14// provided "as is" without express or implied warranty. *
15// *
16//***************************************************************************
17
18/// @file AliHLTTPCdEdxComponent.cxx
19/// @author Sergey Gorbunov <sergey.gorbunov@kip.uni-heidelberg.de>
20/// @date June 2009
21/// @brief An ITS tracker processing component for the HLT
22
23
24/////////////////////////////////////////////////////
25// //
26// dEdx calculation component for the HLT TPC //
27// //
28/////////////////////////////////////////////////////
29
30#include "AliHLTTPCdEdxComponent.h"
31#include "TStopwatch.h"
32#include "TMath.h"
33#include "AliCDBEntry.h"
34#include "AliCDBManager.h"
35#include "TObjString.h"
36#include "TObjArray.h"
37#include "AliHLTDataTypes.h"
38#include "AliHLTExternalTrackParam.h"
39#include "AliHLTGlobalBarrelTrack.h"
40#include "AliHLTTPCTransform.h"
41#include "AliHLTTPCSpacePointData.h"
42#include "AliHLTTPCClusterDataFormat.h"
43#include "AliHLTTPCTrackletDataFormat.h"
44#include "AliHLTTPCDefinitions.h"
45#include "AliTPCseed.h"
46#include "AliTPCclusterMI.h"
47#include "TGeoGlobalMagField.h"
cb2572d9 48#include "AliTPCcalibDB.h"
49#include "AliTPCRecoParam.h"
50#include "AliTPCTransform.h"
0973c527 51
52/** ROOT macro for the implementation of ROOT specific class methods */
53ClassImp( AliHLTTPCdEdxComponent )
54AliHLTTPCdEdxComponent::AliHLTTPCdEdxComponent()
55 :
56 fSolenoidBz( 0 ),
57 fStatTime( 0 ),
58 fStatNEvents( 0 )
59{
60 // see header file for class documentation
61 // or
62 // refer to README to build package
63 // or
64 // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt
65 for( int i=0; i<fkNPatches; i++ ){
66 fPatchClusters[i] = 0;
67 fNPatchClusters[i] = 0;
68 }
69}
70
71AliHLTTPCdEdxComponent::AliHLTTPCdEdxComponent( const AliHLTTPCdEdxComponent& )
72 :
73 AliHLTProcessor(),
74 fSolenoidBz( 0 ),
75 fStatTime( 0 ),
76 fStatNEvents( 0 )
77{
4a76350f 78 // dummy
79 for( int i=0; i<fkNPatches; i++ ){
80 fPatchClusters[i] = 0;
81 fNPatchClusters[i] = 0;
82 }
0973c527 83 HLTFatal( "copy constructor untested" );
84}
85
86AliHLTTPCdEdxComponent& AliHLTTPCdEdxComponent::operator=( const AliHLTTPCdEdxComponent& )
87{
88 // see header file for class documentation
89 HLTFatal( "assignment operator untested" );
90 for( int i=0; i<fkNPatches; i++ ){
91 fPatchClusters[i] = 0;
92 fNPatchClusters[i] = 0;
93 }
94 return *this;
95}
96
97AliHLTTPCdEdxComponent::~AliHLTTPCdEdxComponent()
98{
99 // see header file for class documentation
100 for( int i=0; i<fkNPatches; i++ ){
101 delete[] fPatchClusters[i];
102 }
103}
104
105//
106// Public functions to implement AliHLTComponent's interface.
107// These functions are required for the registration process
108//
109
110const char* AliHLTTPCdEdxComponent::GetComponentID()
111{
112 // see header file for class documentation
113 return "TPCdEdx";
114}
115
116void AliHLTTPCdEdxComponent::GetInputDataTypes( vector<AliHLTComponentDataType>& list )
117{
118 // see header file for class documentation
119 list.clear();
120 list.push_back( kAliHLTDataTypeTrack|kAliHLTDataOriginTPC );
121 list.push_back( AliHLTTPCDefinitions::fgkClustersDataType );
122}
123
124AliHLTComponentDataType AliHLTTPCdEdxComponent::GetOutputDataType()
125{
126 // see header file for class documentation
127 return kAliHLTDataTypedEdx|kAliHLTDataOriginTPC;
128}
129
130void AliHLTTPCdEdxComponent::GetOutputDataSize( unsigned long& constBase, double& inputMultiplier )
131{
132 // define guess for the output data size
133 constBase = 200; // minimum size
134 inputMultiplier = 0.1; // size relative to input
135}
136
137AliHLTComponent* AliHLTTPCdEdxComponent::Spawn()
138{
139 // see header file for class documentation
140 return new AliHLTTPCdEdxComponent;
141}
142
143void AliHLTTPCdEdxComponent::SetDefaultConfiguration()
144{
145 // Set default configuration for the CA tracker component
146 // Some parameters can be later overwritten from the OCDB
147
148 fSolenoidBz = -5.00668;
149 fStatTime = 0;
150 fStatNEvents = 0;
151}
152
153int AliHLTTPCdEdxComponent::ReadConfigurationString( const char* arguments )
154{
155 // Set configuration parameters for the CA tracker component from the string
156
157 int iResult = 0;
158 if ( !arguments ) return iResult;
159
160 TString allArgs = arguments;
161 TString argument;
162 int bMissingParam = 0;
163
164 TObjArray* pTokens = allArgs.Tokenize( " " );
165
166 int nArgs = pTokens ? pTokens->GetEntries() : 0;
167
168 for ( int i = 0; i < nArgs; i++ ) {
169 argument = ( ( TObjString* )pTokens->At( i ) )->GetString();
170 if ( argument.IsNull() ) continue;
171
172 if ( argument.CompareTo( "-solenoidBz" ) == 0 ) {
173 if ( ( bMissingParam = ( ++i >= pTokens->GetEntries() ) ) ) break;
75970b8d 174 HLTWarning("argument -solenoidBz is deprecated, magnetic field set up globally (%f)", GetBz());
0973c527 175 continue;
176 }
177
178 HLTError( "Unknown option \"%s\"", argument.Data() );
179 iResult = -EINVAL;
180 }
181 delete pTokens;
182
183 if ( bMissingParam ) {
184 HLTError( "Specifier missed for parameter \"%s\"", argument.Data() );
185 iResult = -EINVAL;
186 }
187
188 return iResult;
189}
190
191
192int AliHLTTPCdEdxComponent::ReadCDBEntry( const char* cdbEntry, const char* chainId )
193{
194 // see header file for class documentation
195
196 const char* defaultNotify = "";
197
198 if ( !cdbEntry ) {
199 return 0;// need to add the HLT/ConfigTPC/TPCdEdx directory to cdb SG!!!
4a76350f 200 //cdbEntry = "HLT/ConfigTPC/TPCdEdx";
201 //defaultNotify = " (default)";
202 //chainId = 0;
0973c527 203 }
204
205 HLTInfo( "configure from entry \"%s\"%s, chain id %s", cdbEntry, defaultNotify, ( chainId != NULL && chainId[0] != 0 ) ? chainId : "<none>" );
206 AliCDBEntry *pEntry = AliCDBManager::Instance()->Get( cdbEntry );//,GetRunNo());
207
208 if ( !pEntry ) {
209 HLTError( "cannot fetch object \"%s\" from CDB", cdbEntry );
210 return -EINVAL;
211 }
212
213 TObjString* pString = dynamic_cast<TObjString*>( pEntry->GetObject() );
214
215 if ( !pString ) {
216 HLTError( "configuration object \"%s\" has wrong type, required TObjString", cdbEntry );
217 return -EINVAL;
218 }
219
220 HLTInfo( "received configuration object string: \"%s\"", pString->GetString().Data() );
221
222 return ReadConfigurationString( pString->GetString().Data() );
223}
224
225
226int AliHLTTPCdEdxComponent::Configure( const char* cdbEntry, const char* chainId, const char *commandLine )
227{
228 // Configure the component
229 // There are few levels of configuration,
230 // parameters which are set on one step can be overwritten on the next step
231
232 //* read hard-coded values
233
234 SetDefaultConfiguration();
235
236 //* read the default CDB entry
237
238 int iResult1 = ReadCDBEntry( NULL, chainId );
239
240 //* read magnetic field
241
75970b8d 242 fSolenoidBz=GetBz();
0973c527 243
244 //* read the actual CDB entry if required
245
4a76350f 246 int iResult2 = ( cdbEntry ) ? ReadCDBEntry( cdbEntry, chainId ) : 0;
0973c527 247
248 //* read extra parameters from input (if they are)
249
4a76350f 250 int iResult3 = 0;
0973c527 251
252 if ( commandLine && commandLine[0] != '\0' ) {
253 HLTInfo( "received configuration string from HLT framework: \"%s\"", commandLine );
4a76350f 254 iResult3 = ReadConfigurationString( commandLine );
0973c527 255 }
256
257 // Initialise the tracker here
258
4a76350f 259 return iResult1 ? iResult1 : ( iResult2 ? iResult2 : iResult3 );
0973c527 260}
261
262
263
264int AliHLTTPCdEdxComponent::DoInit( int argc, const char** argv )
265{
266 // Configure the component
267
268 TString arguments = "";
269 for ( int i = 0; i < argc; i++ ) {
270 if ( !arguments.IsNull() ) arguments += " ";
271 arguments += argv[i];
272 }
273
274 int ret = Configure( NULL, NULL, arguments.Data() );
275
6a725e52 276 // Check field
277 if (!TGeoGlobalMagField::Instance()) {
278 HLTError("magnetic field not initialized, please set up TGeoGlobalMagField and AliMagF");
279 return -ENODEV;
0973c527 280 }
cb2572d9 281
282 AliTPCcalibDB::Instance()->SetRun(GetRunNo());
283 AliTPCcalibDB::Instance()->UpdateRunInformations(GetRunNo());
284
285 AliTPCcalibDB::Instance()->GetTransform()->SetCurrentRun(GetRunNo());
286 AliTPCcalibDB::Instance()->GetTransform()->SetCurrentTimeStamp( GetTimeStamp() );
287 AliTPCcalibDB::Instance()->GetTransform()->SetCurrentRecoParam(AliTPCRecoParam::GetHLTParam());
288
0973c527 289 //AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform();
290 //if( transform ){
291 //AliTPCRecoParam *reco = transform->GetCurrentRecoParam();
292 //if( ! reco ){
293 //reco = new AliTPCRecoParam;
294 //reco->SetUseTotalCharge(0);
295 //transform->SetCurrentRecoParam( reco );
296 //}
297
298 return ret;
299}
300
301
302int AliHLTTPCdEdxComponent::DoDeinit()
303{
304 // see header file for class documentation
305 return 0;
306}
307
308
309
310int AliHLTTPCdEdxComponent::Reconfigure( const char* cdbEntry, const char* chainId )
311{
312 // Reconfigure the component from OCDB .
313
314 return Configure( cdbEntry, chainId, NULL );
315}
316
317
318
319int AliHLTTPCdEdxComponent::DoEvent
320(
321 const AliHLTComponentEventData& evtData,
322 const AliHLTComponentBlockData* blocks,
323 AliHLTComponentTriggerData& /*trigData*/,
324 AliHLTUInt8_t* outputPtr,
325 AliHLTUInt32_t& size,
326 vector<AliHLTComponentBlockData>& outputBlocks )
327{
328 //* process the event
329
330 AliHLTUInt32_t maxBufferSize = size;
331 size = 0; // output size
332
333 if (!IsDataEvent()) return 0;
334
335 if ( evtData.fBlockCnt <= 0 ) {
336 HLTWarning( "no blocks in event" );
337 return 0;
338 }
339 if ( !outputPtr ) {
340 return -ENOSPC;
341 }
342
343 int iResult=0;
344
345 TStopwatch timer;
346
347 // Initialise the data pointers
348
349 for( int i=0; i<fkNPatches; i++ ){
350 delete[] fPatchClusters[i];
351 fPatchClusters[i] = 0;
352 fNPatchClusters[i] = 0;
353 }
354
355 int nBlocks = (int)evtData.fBlockCnt;
356
357 int nInputClusters = 0;
358 int nInputTracks = 0;
359
360 // first read all the clusters
361
362 for (int ndx=0; ndx<nBlocks && iResult>=0; ndx++) {
363 const AliHLTComponentBlockData* iter = blocks+ndx;
364 if ( iter->fDataType != AliHLTTPCDefinitions::fgkClustersDataType ) continue;
365 Int_t slice=AliHLTTPCDefinitions::GetMinSliceNr(iter->fSpecification);
366 Int_t patch=AliHLTTPCDefinitions::GetMinPatchNr(iter->fSpecification);
367 Int_t slicepatch=slice*6+patch;
4a76350f 368 if( slicepatch >= fkNPatches ){
0973c527 369 HLTWarning("Wrong header of TPC cluster data, slice %d, patch %d",
370 slice, patch );
371 continue;
372 }
373 AliHLTTPCClusterData* inPtrSP = ( AliHLTTPCClusterData* )( iter->fPtr );
374 nInputClusters += inPtrSP->fSpacePointCnt;
375
376 delete[] fPatchClusters[slicepatch];
377 fPatchClusters[slicepatch] = new AliTPCclusterMI[inPtrSP->fSpacePointCnt];
378 fNPatchClusters[slicepatch] = inPtrSP->fSpacePointCnt;
379
380 // create off-line clusters out of the HLT clusters
381 // todo: check which cluster information is really needed for the dEdx
382
383 for ( unsigned int i = 0; i < inPtrSP->fSpacePointCnt; i++ ) {
384 AliHLTTPCSpacePointData *chlt = &( inPtrSP->fSpacePoints[i] );
385 AliTPCclusterMI *c = fPatchClusters[slicepatch]+i;
386 c->SetX(chlt->fX);
387 c->SetY(chlt->fY);
388 c->SetZ(chlt->fZ);
389 c->SetSigmaY2(chlt->fSigmaY2);
390 c->SetSigmaYZ( 0 );
391 c->SetSigmaZ2(chlt->fSigmaZ2);
392 c->SetQ( chlt->fCharge );
393 c->SetMax( chlt->fQMax );
394 Int_t sector, row;
395 Float_t padtime[3]={0,chlt->fY,chlt->fZ};
396 AliHLTTPCTransform::Slice2Sector(slice,chlt->fPadRow, sector, row);
397 AliHLTTPCTransform::Local2Raw( padtime, sector, row);
398 c->SetDetector( sector );
399 c->SetRow( row );
400 c->SetPad( (Int_t) padtime[1] );
401 c->SetTimeBin( (Int_t) padtime[2] );
402 }
403 }
404
405
406 // loop over the input tracks: calculate dEdx and write output
407
408 unsigned int outSize = 0;
409 AliHLTFloat32_t *outPtr = ( AliHLTFloat32_t * )( outputPtr );
410
411 for (const AliHLTComponentBlockData* pBlock=GetFirstInputBlock(kAliHLTDataTypeTrack|kAliHLTDataOriginTPC);
412 pBlock!=NULL; pBlock=GetNextInputBlock()) {
413
414 AliHLTComponentBlockData outBlock;
415 FillBlockData( outBlock );
416 outBlock.fOffset = outSize;
417 outBlock.fSize = 0;
418 outBlock.fDataType = kAliHLTDataTypedEdx|kAliHLTDataOriginTPC;
419 outBlock.fSpecification = pBlock->fSpecification;
420
421 AliHLTTracksData* dataPtr = ( AliHLTTracksData* ) pBlock->fPtr;
422 int nTracks = dataPtr->fCount;
423 AliHLTExternalTrackParam* currTrack = dataPtr->fTracklets;
424 nInputTracks+=nTracks;
425
426 for( int itr=0;
427 itr<nTracks && ( (AliHLTUInt8_t *)currTrack < ((AliHLTUInt8_t *) pBlock->fPtr)+pBlock->fSize);
428 itr++ ){
429
430 // create an off-line track
431 AliHLTGlobalBarrelTrack gb(*currTrack);
432 AliTPCseed tTPC;
433 tTPC.Set( gb.GetX(), gb.GetAlpha(),
434 gb.GetParameter(), gb.GetCovariance() );
435
436 // set the clusters
437
26c0ed2d 438 for( UInt_t ic=0; ic<currTrack->fNPoints; ic++){
0973c527 439 UInt_t id = currTrack->fPointIDs[ic];
a371a266 440 int iSlice = AliHLTTPCSpacePointData::GetSlice(id);
441 int iPatch = AliHLTTPCSpacePointData::GetPatch(id);
442 int iCluster = AliHLTTPCSpacePointData::GetNumber(id);
0973c527 443 if( iSlice<0 || iSlice>36 || iPatch<0 || iPatch>5 ){
444 HLTError("Corrupted TPC cluster Id: slice %d, patch %d, cluster %d",
445 iSlice, iPatch,iCluster );
446 continue;
447 }
448 AliTPCclusterMI *patchClusters = fPatchClusters[iSlice*6 + iPatch];
449 if( !patchClusters ){
450 HLTError("Clusters are missed for slice %d, patch %d",
451 iSlice, iPatch );
452 continue;
453 }
454 if( iCluster >= fNPatchClusters[iSlice*6 + iPatch] ){
455 HLTError("TPC slice %d, patch %d: ClusterID==%d >= N Cluaters==%d ",
456 iSlice, iPatch,iCluster, fNPatchClusters[iSlice*6 + iPatch] );
457 continue;
458 }
459 AliTPCclusterMI *c = &(patchClusters[iCluster]);
460
461 int sec = c->GetDetector();
462 int row = c->GetRow();
463 if ( sec >= 36 ) {
464 row = row + AliHLTTPCTransform::GetNRowLow();
465 }
466 tTPC.SetClusterPointer( row, c );
467
468 AliTPCTrackerPoint &point = *( tTPC.GetTrackPoint( row ) );
3aba5bd4 469 tTPC.Propagate( TMath::DegToRad()*(sec%18*20.+10.), c->GetX(), fSolenoidBz );
0973c527 470 Double_t angle2 = tTPC.GetSnp()*tTPC.GetSnp();
471 angle2 = (angle2<1) ?TMath::Sqrt(angle2/(1-angle2)) :10.;
472 point.SetAngleY( angle2 );
473 point.SetAngleZ( tTPC.GetTgl() );
474 }
475
476 // Cook dEdx
477
72a916d9 478 if( outSize+3*sizeof( AliHLTFloat32_t ) > maxBufferSize ){
0973c527 479 HLTWarning( "Output buffer size %d exceed", maxBufferSize );
480 iResult = -ENOSPC;
481 break;
482 }
72a916d9 483
1adaacf9 484 //Old method
485 /*
72a916d9 486 tTPC.CookdEdx( 0.02, 0.6 );
487 outPtr[0] = tTPC.GetdEdx();
488 outPtr[1] = tTPC.GetSDEDX(0);
489 outPtr[2] = tTPC.GetNCDEDX(0);
1adaacf9 490 */
491
492 //New method
493 outPtr[0] = tTPC.CookdEdxAnalytical(0.02,0.6,1,0,159,0);
494 outPtr[1] = 0.;
495 outPtr[2] = 159;
496
72a916d9 497 outPtr+=3;
498 outSize+=3*sizeof( AliHLTFloat32_t );
499 outBlock.fSize+=3*sizeof( AliHLTFloat32_t );
0973c527 500
501 unsigned int step = sizeof( AliHLTExternalTrackParam ) + currTrack->fNPoints * sizeof( unsigned int );
502 currTrack = ( AliHLTExternalTrackParam* )( (( Byte_t * )currTrack) + step );
503 }
504 if( iResult<0 ) break;
505 outputBlocks.push_back( outBlock );
506 size = outSize;
507 }
508
509 timer.Stop();
510 fStatTime += timer.RealTime();
511 fStatNEvents++;
512
513 // Set log level to "Warning" for on-line system monitoring
514 int hz = ( int ) ( fStatTime > 1.e-10 ? fStatNEvents / fStatTime : 100000 );
515
516 HLTInfo( "TPCdEdx : %d clusters and %d tracks processed; average time %d Hz",
517 nInputClusters, nInputTracks, hz );
518
519 return iResult;
520}