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Commit | Line | Data |
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d92b41ad | 1 | /* $Id: $ */ |
d92b41ad | 2 | //-------------------------------------------------- |
3 | // Example macro to do analysis with the | |
4 | // analysis classes in PWG4PartCorr | |
5 | // Can be executed with Root and AliRoot | |
6 | // | |
7 | // Pay attention to the options and definitions | |
8 | // set in the lines below | |
9 | // | |
10 | // Author : Gustavo Conesa Balbastre (INFN-LNF) | |
11 | // | |
12 | //------------------------------------------------- | |
13 | enum anaModes {mLocal, mLocalCAF,mPROOF,mGRID}; | |
14 | //mLocal: Analyze locally files in your computer | |
15 | //mLocalCAF: Analyze locally CAF files | |
16 | //mPROOF: Analyze CAF files with PROOF | |
17 | ||
18 | //--------------------------------------------------------------------------- | |
19 | //Settings to read locally several files, only for "mLocal" mode | |
20 | //The different values are default, they can be set with environmental | |
c8fe2783 | 21 | //variables: INDIR, PATTERN, NFILES, respectivelly |
54769bc0 | 22 | |
23 | char * kInDir = "/user/data/files/"; | |
3e0577a2 | 24 | char * kPattern = ""; // Data are in files kInDir/kPattern+i |
c8fe2783 | 25 | Int_t kFile = 1; // Number of files |
d92b41ad | 26 | //--------------------------------------------------------------------------- |
27 | //Collection file for grid analysis | |
28 | char * kXML = "collection.xml"; | |
29 | //--------------------------------------------------------------------------- | |
30 | //Scale histograms from file. Change to kTRUE when xsection file exists | |
31 | //Put name of file containing xsection | |
32 | //Put number of events per ESD file | |
33 | //This is an specific case for normalization of Pythia files. | |
34 | const Bool_t kGetXSectionFromFileAndScale = kFALSE ; | |
35 | const char * kXSFileName = "pyxsec.root"; | |
54769bc0 | 36 | |
d92b41ad | 37 | //--------------------------------------------------------------------------- |
38 | ||
c8fe2783 | 39 | const Bool_t kMC = kFALSE; //With real data kMC = kFALSE |
54769bc0 | 40 | const TString kInputData = "ESD"; //ESD, AOD, MC, deltaAOD |
41 | const Bool_t outAOD = kFALSE; //Some tasks doesnt need it. | |
42 | TString kTreeName = "esdTree"; | |
43 | const Int_t kFilter = kFALSE; //Use ESD filter | |
7175a03a | 44 | |
c8fe2783 | 45 | void ana(Int_t mode=mLocal) |
d92b41ad | 46 | { |
47 | // Main | |
54769bc0 | 48 | |
d92b41ad | 49 | //-------------------------------------------------------------------- |
50 | // Load analysis libraries | |
51 | // Look at the method below, | |
52 | // change whatever you need for your analysis case | |
53 | // ------------------------------------------------------------------ | |
54 | LoadLibraries(mode) ; | |
54769bc0 | 55 | // TGeoManager::Import("geometry.root") ; //need file "geometry.root" in local dir!!!! |
56 | ||
d92b41ad | 57 | //------------------------------------------------------------------------------------------------- |
58 | //Create chain from ESD and from cross sections files, look below for options. | |
c8fe2783 | 59 | //------------------------------------------------------------------------------------------------- |
7175a03a | 60 | if(kInputData == "ESD") kTreeName = "esdTree" ; |
54769bc0 | 61 | else if(kInputData.Contains("AOD")) kTreeName = "aodTree" ; |
7175a03a | 62 | else if (kInputData == "MC") kTreeName = "TE" ; |
63 | else { | |
64 | cout<<"Wrong data type "<<kInputData<<endl; | |
65 | break; | |
66 | } | |
54769bc0 | 67 | |
c8fe2783 | 68 | TChain *chain = new TChain(kTreeName) ; |
d92b41ad | 69 | TChain * chainxs = new TChain("Xsection") ; |
70 | CreateChain(mode, chain, chainxs); | |
54769bc0 | 71 | |
d92b41ad | 72 | if(chain){ |
73 | AliLog::SetGlobalLogLevel(AliLog::kError);//Minimum prints on screen | |
74 | ||
75 | //-------------------------------------- | |
76 | // Make the analysis manager | |
77 | //------------------------------------- | |
78 | AliAnalysisManager *mgr = new AliAnalysisManager("Manager", "Manager"); | |
54769bc0 | 79 | //AliAnalysisManager::SetUseProgressBar(kTRUE); |
80 | //mgr->SetSkipTerminate(kTRUE); | |
81 | //mgr->SetNSysInfo(1); | |
82 | ||
d92b41ad | 83 | // MC handler |
54769bc0 | 84 | if((kMC || kInputData == "MC") && !kInputData.Contains("AOD")){ |
d92b41ad | 85 | AliMCEventHandler* mcHandler = new AliMCEventHandler(); |
86 | mcHandler->SetReadTR(kFALSE);//Do not search TrackRef file | |
87 | mgr->SetMCtruthEventHandler(mcHandler); | |
54769bc0 | 88 | if( kInputData == "MC") { |
89 | cout<<"INPUT EVENT HANDLER"<<endl; | |
90 | mgr->SetInputEventHandler(NULL); | |
91 | } | |
d92b41ad | 92 | } |
54769bc0 | 93 | |
d92b41ad | 94 | // AOD output handler |
54769bc0 | 95 | if(kInputData!="deltaAOD" && outAOD){ |
96 | cout<<"Init output handler"<<endl; | |
97 | AliAODHandler* aodoutHandler = new AliAODHandler(); | |
98 | aodoutHandler->SetOutputFileName("aod.root"); | |
99 | ////aodoutHandler->SetCreateNonStandardAOD(); | |
100 | mgr->SetOutputEventHandler(aodoutHandler); | |
101 | } | |
c8fe2783 | 102 | |
d92b41ad | 103 | //input |
54769bc0 | 104 | |
105 | if(kInputData == "ESD"){ | |
d92b41ad | 106 | // ESD handler |
107 | AliESDInputHandler *esdHandler = new AliESDInputHandler(); | |
54769bc0 | 108 | esdHandler->SetReadFriends(kFALSE); |
d92b41ad | 109 | mgr->SetInputEventHandler(esdHandler); |
54769bc0 | 110 | cout<<"ESD handler "<<mgr->GetInputEventHandler()<<endl; |
111 | } | |
112 | else if(kInputData.Contains("AOD")){ | |
d92b41ad | 113 | // AOD handler |
114 | AliAODInputHandler *aodHandler = new AliAODInputHandler(); | |
115 | mgr->SetInputEventHandler(aodHandler); | |
54769bc0 | 116 | if(kInputData == "deltaAOD") aodHandler->AddFriend("deltaAODPartCorr.root"); |
117 | cout<<"AOD handler "<<mgr->GetInputEventHandler()<<endl; | |
d92b41ad | 118 | } |
54769bc0 | 119 | //mgr->RegisterExternalFile("deltaAODPartCorr.root"); |
120 | //mgr->SetDebugLevel(-1); // For debugging, do not uncomment if you want no messages. | |
121 | ||
d92b41ad | 122 | //------------------------------------------------------------------------- |
123 | //Define task, put here any other task that you want to use. | |
124 | //------------------------------------------------------------------------- | |
8a546c82 | 125 | AliAnalysisDataContainer *cinput1 = mgr->GetCommonInputContainer(); |
54769bc0 | 126 | AliAnalysisDataContainer *coutput1; |
127 | if(outAOD){ | |
128 | ||
129 | coutput1 = mgr->GetCommonOutputContainer(); | |
130 | ||
131 | if(kInputData=="ESD"){ | |
132 | ||
133 | gROOT->LoadMacro("$ALICE_ROOT/ANALYSIS/macros/AddTaskPhysicsSelection.C"); | |
134 | AliPhysicsSelectionTask* physSelTask = AddTaskPhysicsSelection(); | |
135 | if(kFilter){ | |
136 | gROOT->LoadMacro("$ALICE_ROOT/ANALYSIS/macros/AddTaskESDFilter.C"); | |
137 | AliAnalysisTaskESDfilter *taskesdfilter = AddTaskESDFilter(kFALSE); | |
138 | } | |
139 | } | |
140 | } | |
141 | ||
142 | gROOT->LoadMacro("$ALICE_ROOT/PWG4/macros/AddTaskPartCorr.C"); | |
143 | TString data = kInputData; | |
144 | if(kFilter && kInputData=="ESD" && outAOD) data = "AOD"; | |
145 | //data="MC"; | |
146 | AliAnalysisTaskParticleCorrelation *taskEMCAL = AddTaskPartCorr(data,"EMCAL", kFALSE,kFALSE, kFALSE); | |
147 | //mgr->ProfileTask("PartCorrEMCAL"); | |
148 | ||
149 | //AliAnalysisTaskParticleCorrelation *taskPHOS = AddTaskPartCorr(data,"PHOS", kFALSE,kFALSE,kFALSE); | |
150 | //mgr->ProfileTask("PartCorrPHOS"); | |
151 | ||
c8fe2783 | 152 | //gROOT->LoadMacro("AddTaskCalorimeterQA.C"); |
54769bc0 | 153 | gROOT->LoadMacro("$ALICE_ROOT/PWG4/macros/QA/AddTaskCalorimeterQA.C"); |
154 | AliAnalysisTaskParticleCorrelation *taskQA = AddTaskCalorimeterQA(kInputData,kFALSE,kFALSE); | |
155 | //mgr->ProfileTask("CalorimeterPerformance"); | |
156 | ||
d92b41ad | 157 | //----------------------- |
158 | // Run the analysis | |
159 | //----------------------- | |
160 | TString smode = ""; | |
161 | if (mode==mLocal || mode == mLocalCAF) | |
162 | smode = "local"; | |
163 | else if (mode==mPROOF) | |
164 | smode = "proof"; | |
165 | else if (mode==mGRID) | |
29d1ef1d | 166 | smode = "local"; |
d92b41ad | 167 | mgr->InitAnalysis(); |
168 | mgr->PrintStatus(); | |
169 | mgr->StartAnalysis(smode.Data(),chain); | |
3e0577a2 | 170 | |
54769bc0 | 171 | cout <<" Analysis ended sucessfully "<< endl ; |
172 | ||
d92b41ad | 173 | } |
174 | else cout << "Chain was not produced ! "<<endl; | |
54769bc0 | 175 | //printf("*** DELETE MANAGER ***\n"); |
176 | // delete mgr; | |
d92b41ad | 177 | |
178 | } | |
179 | ||
180 | void LoadLibraries(const anaModes mode) { | |
181 | ||
182 | //-------------------------------------- | |
183 | // Load the needed libraries most of them already loaded by aliroot | |
184 | //-------------------------------------- | |
185 | gSystem->Load("libTree.so"); | |
186 | gSystem->Load("libGeom.so"); | |
187 | gSystem->Load("libVMC.so"); | |
188 | gSystem->Load("libXMLIO.so"); | |
54769bc0 | 189 | gSystem->Load("libMatrix.so"); |
190 | gSystem->Load("libPhysics.so"); | |
d92b41ad | 191 | //---------------------------------------------------------- |
192 | // >>>>>>>>>>> Local mode <<<<<<<<<<<<<< | |
193 | //---------------------------------------------------------- | |
194 | if (mode==mLocal || mode == mLocalCAF || mode == mGRID) { | |
195 | //-------------------------------------------------------- | |
196 | // If you want to use already compiled libraries | |
197 | // in the aliroot distribution | |
198 | //-------------------------------------------------------- | |
c8fe2783 | 199 | gSystem->Load("libSTEERBase.so"); |
200 | gSystem->Load("libESD.so"); | |
201 | gSystem->Load("libAOD.so"); | |
202 | gSystem->Load("libANALYSIS.so"); | |
203 | gSystem->Load("libANALYSISalice.so"); | |
204 | gSystem->Load("libPHOSUtils"); | |
205 | gSystem->Load("libEMCALUtils"); | |
206 | gSystem->Load("libPWG4PartCorrBase.so"); | |
207 | gSystem->Load("libPWG4PartCorrDep.so"); | |
54769bc0 | 208 | if(kFilter){ |
209 | gSystem->Load("libCORRFW.so"); | |
210 | gSystem->Load("libPWG3base.so"); | |
211 | gSystem->Load("libPWG3muon.so"); | |
212 | } | |
213 | ||
d92b41ad | 214 | //-------------------------------------------------------- |
215 | //If you want to use root and par files from aliroot | |
216 | //-------------------------------------------------------- | |
54769bc0 | 217 | /* |
218 | SetupPar("STEERBase"); | |
219 | SetupPar("ESD"); | |
220 | SetupPar("AOD"); | |
221 | SetupPar("ANALYSIS"); | |
222 | SetupPar("ANALYSISalice"); | |
223 | //If your analysis needs PHOS geometry uncomment following lines | |
224 | SetupPar("PHOSUtils"); | |
225 | SetupPar("EMCALUtils"); | |
226 | //Create Geometry | |
227 | SetupPar("PWG4PartCorrBase"); | |
228 | SetupPar("PWG4PartCorrDep"); | |
229 | if(kFilter){ | |
230 | gSystem->Load("libCORRFW.so"); | |
231 | gSystem->Load("libPWG3base.so"); | |
232 | gSystem->Load("libPWG3muon.so"); | |
233 | } | |
234 | */ | |
d92b41ad | 235 | } |
236 | ||
237 | //--------------------------------------------------------- | |
238 | // <<<<<<<<<< PROOF mode >>>>>>>>>>>> | |
239 | //--------------------------------------------------------- | |
240 | else if (mode==mPROOF) { | |
241 | // | |
242 | // Connect to proof | |
243 | // Put appropriate username here | |
244 | // TProof::Reset("proof://mgheata@lxb6046.cern.ch"); | |
245 | TProof::Open("proof://mgheata@lxb6046.cern.ch"); | |
246 | ||
247 | // gProof->ClearPackages(); | |
248 | // gProof->ClearPackage("ESD"); | |
249 | // gProof->ClearPackage("AOD"); | |
250 | // gProof->ClearPackage("ANALYSIS"); | |
3e0577a2 | 251 | // gProof->ClearPackage("PWG4PartCorrBase"); |
252 | // gProof->ClearPackage("PWG4PartCorrDep"); | |
d92b41ad | 253 | |
254 | // Enable the STEERBase Package | |
255 | gProof->UploadPackage("STEERBase.par"); | |
256 | gProof->EnablePackage("STEERBase"); | |
257 | // Enable the ESD Package | |
258 | gProof->UploadPackage("ESD.par"); | |
259 | gProof->EnablePackage("ESD"); | |
260 | // Enable the AOD Package | |
261 | gProof->UploadPackage("AOD.par"); | |
262 | gProof->EnablePackage("AOD"); | |
263 | // Enable the Analysis Package | |
264 | gProof->UploadPackage("ANALYSIS.par"); | |
265 | gProof->EnablePackage("ANALYSIS"); | |
3e0577a2 | 266 | // Enable the PHOS geometry Package |
c8fe2783 | 267 | //gProof->UploadPackage("PHOSUtils.par"); |
268 | //gProof->EnablePackage("PHOSUtils"); | |
3e0577a2 | 269 | // Enable PartCorr analysis |
270 | gProof->UploadPackage("PWG4PartCorrBase.par"); | |
271 | gProof->EnablePackage("PWG4PartCorrBase"); | |
54769bc0 | 272 | gProof->UploadPackage("PWG4PartCorrDep.par"); |
3e0577a2 | 273 | gProof->EnablePackage("PWG4PartCorrDep"); |
d92b41ad | 274 | gProof->ShowEnabledPackages(); |
275 | } | |
276 | ||
277 | } | |
278 | ||
279 | void SetupPar(char* pararchivename) | |
280 | { | |
281 | //Load par files, create analysis libraries | |
282 | //For testing, if par file already decompressed and modified | |
283 | //classes then do not decompress. | |
284 | ||
285 | TString cdir(Form("%s", gSystem->WorkingDirectory() )) ; | |
286 | TString parpar(Form("%s.par", pararchivename)) ; | |
287 | if ( gSystem->AccessPathName(parpar.Data()) ) { | |
288 | gSystem->ChangeDirectory(gSystem->Getenv("ALICE_ROOT")) ; | |
289 | TString processline(Form(".! make %s", parpar.Data())) ; | |
290 | gROOT->ProcessLine(processline.Data()) ; | |
291 | gSystem->ChangeDirectory(cdir) ; | |
3e0577a2 | 292 | processline = Form(".! mv $ALICE_ROOT/%s .", parpar.Data()) ; |
d92b41ad | 293 | gROOT->ProcessLine(processline.Data()) ; |
294 | } | |
295 | if ( gSystem->AccessPathName(pararchivename) ) { | |
296 | TString processline = Form(".! tar xvzf %s",parpar.Data()) ; | |
297 | gROOT->ProcessLine(processline.Data()); | |
298 | } | |
299 | ||
300 | TString ocwd = gSystem->WorkingDirectory(); | |
301 | gSystem->ChangeDirectory(pararchivename); | |
302 | ||
303 | // check for BUILD.sh and execute | |
304 | if (!gSystem->AccessPathName("PROOF-INF/BUILD.sh")) { | |
305 | printf("*******************************\n"); | |
306 | printf("*** Building PAR archive ***\n"); | |
307 | cout<<pararchivename<<endl; | |
308 | printf("*******************************\n"); | |
309 | ||
310 | if (gSystem->Exec("PROOF-INF/BUILD.sh")) { | |
311 | Error("runProcess","Cannot Build the PAR Archive! - Abort!"); | |
312 | return -1; | |
313 | } | |
314 | } | |
315 | // check for SETUP.C and execute | |
316 | if (!gSystem->AccessPathName("PROOF-INF/SETUP.C")) { | |
317 | printf("*******************************\n"); | |
318 | printf("*** Setup PAR archive ***\n"); | |
319 | cout<<pararchivename<<endl; | |
320 | printf("*******************************\n"); | |
321 | gROOT->Macro("PROOF-INF/SETUP.C"); | |
322 | } | |
323 | ||
324 | gSystem->ChangeDirectory(ocwd.Data()); | |
325 | printf("Current dir: %s\n", ocwd.Data()); | |
326 | } | |
327 | ||
328 | ||
329 | ||
330 | void CreateChain(const anaModes mode, TChain * chain, TChain * chainxs){ | |
331 | //Fills chain with data | |
332 | TString ocwd = gSystem->WorkingDirectory(); | |
333 | ||
334 | //----------------------------------------------------------- | |
335 | //Analysis of CAF data locally and with PROOF | |
336 | //----------------------------------------------------------- | |
337 | if(mode ==mPROOF || mode ==mLocalCAF){ | |
338 | // Chain from CAF | |
339 | gROOT->LoadMacro("$ALICE_ROOT/PWG0/CreateESDChain.C"); | |
340 | // The second parameter is the number of input files in the chain | |
341 | chain = CreateESDChain("ESD12001.txt", 5); | |
342 | } | |
343 | ||
344 | //--------------------------------------- | |
345 | //Local files analysis | |
346 | //--------------------------------------- | |
347 | else if(mode == mLocal){ | |
348 | //If you want to add several ESD files sitting in a common directory INDIR | |
349 | //Specify as environmental variables the directory (INDIR), the number of files | |
c8fe2783 | 350 | //to analyze (NFILES) and the pattern name of the directories with files (PATTERN) |
d92b41ad | 351 | |
352 | if(gSystem->Getenv("INDIR")) | |
353 | kInDir = gSystem->Getenv("INDIR") ; | |
354 | else cout<<"INDIR not set, use default: "<<kInDir<<endl; | |
355 | ||
356 | if(gSystem->Getenv("PATTERN")) | |
357 | kPattern = gSystem->Getenv("PATTERN") ; | |
358 | else cout<<"PATTERN not set, use default: "<<kPattern<<endl; | |
359 | ||
c8fe2783 | 360 | if(gSystem->Getenv("NFILES")) |
361 | kFile = atoi(gSystem->Getenv("NFILES")) ; | |
362 | else cout<<"NFILES not set, use default: "<<kFile<<endl; | |
d92b41ad | 363 | |
364 | //Check if env variables are set and are correct | |
c8fe2783 | 365 | if ( kInDir && kFile) { |
366 | printf("Get %d files from directory %s\n",kFile,kInDir); | |
d92b41ad | 367 | if ( ! gSystem->cd(kInDir) ) {//check if ESDs directory exist |
368 | printf("%s does not exist\n", kInDir) ; | |
369 | return ; | |
370 | } | |
c8fe2783 | 371 | |
372 | //if(gSystem->Getenv("XSFILE")) | |
373 | //kXSFileName = gSystem->Getenv("XSFILE") ; | |
374 | //else cout<<" XS file name not set, use default: "<<kXSFileName<<endl; | |
375 | char * kGener = gSystem->Getenv("GENER"); | |
376 | if(kGener) { | |
377 | cout<<"GENER "<<kGener<<endl; | |
378 | if(!strcmp(kGener,"PYTHIA")) kXSFileName = "pyxsec.root"; | |
379 | else if(!strcmp(kGener,"HERWIG")) kXSFileName = "hexsec.root"; | |
380 | else cout<<" UNKNOWN GENER, use default: "<<kXSFileName<<endl; | |
381 | } | |
382 | else cout<<" GENER not set, use default xs file name: "<<kXSFileName<<endl; | |
383 | ||
384 | cout<<"INDIR : "<<kInDir<<endl; | |
385 | cout<<"NFILES : "<<kFile<<endl; | |
386 | cout<<"PATTERN : " <<kPattern<<endl; | |
387 | cout<<"XSFILE : "<<kXSFileName<<endl; | |
388 | ||
7175a03a | 389 | TString datafile=""; |
390 | if(kInputData == "ESD") datafile = "AliESDs.root" ; | |
54769bc0 | 391 | else if(kInputData.Contains("AOD")) datafile = "AliAOD.root" ; |
7175a03a | 392 | else if(kInputData == "MC") datafile = "galice.root" ; |
393 | ||
d92b41ad | 394 | //Loop on ESD files, add them to chain |
395 | Int_t event =0; | |
396 | Int_t skipped=0 ; | |
397 | char file[120] ; | |
398 | char filexs[120] ; | |
399 | ||
c8fe2783 | 400 | for (event = 0 ; event < kFile ; event++) { |
7175a03a | 401 | sprintf(file, "%s/%s%d/%s", kInDir,kPattern,event,datafile.Data()) ; |
d92b41ad | 402 | sprintf(filexs, "%s/%s%d/%s", kInDir,kPattern,event,kXSFileName) ; |
403 | TFile * fESD = 0 ; | |
404 | //Check if file exists and add it, if not skip it | |
405 | if ( fESD = TFile::Open(file)) { | |
7175a03a | 406 | if ( fESD->Get(kTreeName) ) { |
d92b41ad | 407 | printf("++++ Adding %s\n", file) ; |
408 | chain->AddFile(file); | |
409 | chainxs->Add(filexs) ; | |
410 | } | |
411 | } | |
412 | else { | |
413 | printf("---- Skipping %s\n", file) ; | |
414 | skipped++ ; | |
415 | } | |
416 | } | |
c8fe2783 | 417 | printf("number of entries # %lld, skipped %d\n", chain->GetEntries(), skipped*100) ; |
d92b41ad | 418 | } |
419 | else { | |
420 | TString input = "AliESDs.root" ; | |
421 | cout<<">>>>>> No list added, take a single file <<<<<<<<< "<<input<<endl; | |
422 | chain->AddFile(input); | |
423 | } | |
424 | ||
425 | }// local files analysis | |
426 | ||
427 | //------------------------------ | |
428 | //GRID xml files | |
429 | //----------------------------- | |
430 | else if(mode == mGRID){ | |
431 | //Get colection file. It is specified by the environmental | |
432 | //variable XML | |
433 | ||
434 | if(gSystem->Getenv("XML") ) | |
435 | kXML = gSystem->Getenv("XML"); | |
436 | else | |
437 | sprintf(kXML, "collection.xml") ; | |
438 | ||
439 | if (!TFile::Open(kXML)) { | |
440 | printf("No collection file with name -- %s -- was found\n",kXML); | |
441 | return ; | |
442 | } | |
443 | else cout<<"XML file "<<kXML<<endl; | |
444 | ||
445 | //Load necessary libraries and connect to the GRID | |
446 | gSystem->Load("libNetx.so") ; | |
447 | gSystem->Load("libRAliEn.so"); | |
448 | TGrid::Connect("alien://") ; | |
449 | ||
450 | //Feed Grid with collection file | |
451 | //TGridCollection * collection = (TGridCollection*)gROOT->ProcessLine(Form("TAlienCollection::Open(\"%s\", 0)", kXML)); | |
452 | TGridCollection * collection = (TGridCollection*) TAlienCollection::Open(kXML); | |
453 | if (! collection) { | |
454 | AliError(Form("%s not found", kXML)) ; | |
455 | return kFALSE ; | |
456 | } | |
457 | TGridResult* result = collection->GetGridResult("",0 ,0); | |
458 | ||
459 | // Makes the ESD chain | |
460 | printf("*** Getting the Chain ***\n"); | |
461 | for (Int_t index = 0; index < result->GetEntries(); index++) { | |
462 | TString alienURL = result->GetKey(index, "turl") ; | |
463 | cout << "================== " << alienURL << endl ; | |
464 | chain->Add(alienURL) ; | |
465 | alienURL.ReplaceAll("AliESDs.root",kXSFileName); | |
466 | chainxs->Add(alienURL) ; | |
467 | } | |
468 | }// xml analysis | |
469 | ||
470 | gSystem->ChangeDirectory(ocwd.Data()); | |
471 | } | |
472 | ||
473 | //________________________________________________ | |
474 | void GetAverageXsection(TTree * tree, Double_t & xs, Float_t & ntr) | |
475 | { | |
476 | // Read the PYTHIA statistics from the file pyxsec.root created by | |
477 | // the function WriteXsection(): | |
478 | // integrated cross section (xsection) and | |
479 | // the number of Pyevent() calls (ntrials) | |
480 | // and calculate the weight per one event xsection/ntrials | |
481 | // The spectrum calculated by a user should be | |
482 | // multiplied by this weight, something like this: | |
483 | // TH1F *userSpectrum ... // book and fill the spectrum | |
484 | // userSpectrum->Scale(weight) | |
485 | // | |
486 | // Yuri Kharlov 19 June 2007 | |
487 | // Gustavo Conesa 15 April 2008 | |
488 | Double_t xsection = 0; | |
489 | UInt_t ntrials = 0; | |
490 | xs = 0; | |
491 | ntr = 0; | |
492 | ||
493 | Int_t nfiles = tree->GetEntries() ; | |
494 | if (tree && nfiles > 0) { | |
495 | tree->SetBranchAddress("xsection",&xsection); | |
496 | tree->SetBranchAddress("ntrials",&ntrials); | |
497 | for(Int_t i = 0; i < nfiles; i++){ | |
498 | tree->GetEntry(i); | |
499 | xs += xsection ; | |
500 | ntr += ntrials ; | |
501 | cout << "xsection " <<xsection<<" ntrials "<<ntrials<<endl; | |
502 | } | |
503 | ||
504 | xs = xs / nfiles; | |
505 | ntr = ntr / nfiles; | |
506 | cout << "-----------------------------------------------------------------"<<endl; | |
507 | cout << "Average of "<< nfiles<<" files: xsection " <<xs<<" ntrials "<<ntr<<endl; | |
508 | cout << "-----------------------------------------------------------------"<<endl; | |
509 | } | |
510 | else cout << " >>>> Empty tree !!!! <<<<< "<<endl; | |
511 | ||
512 | } | |
513 | ||
514 | ||
515 |