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34ce8d31 | 1 | /* $Id$ */ |
37ff46b0 | 2 | /* $Log$ |
030af48c | 3 | /* Revision 1.2 2007/12/13 09:45:45 gustavo |
4 | /* Scaling option and more comentaries added | |
5 | /* | |
37ff46b0 | 6 | /* Revision 1.1 2007/12/07 14:13:02 gustavo |
7 | /* Example macros for execution and configuration of the analysis | |
8 | /* */ | |
34ce8d31 | 9 | |
10 | //--------------------------------------------------- | |
11 | // Example macro to do analysis with the | |
12 | // analysis classes in PWG4Gamma | |
13 | // Can be executed with Root and AliRoot | |
37ff46b0 | 14 | // |
ce8dba2f | 15 | // Pay attention to the options and definitions |
16 | // set in the lines below | |
34ce8d31 | 17 | // |
18 | // Author : Gustavo Conesa Balbastre (INFN-LNF) | |
19 | // | |
20 | //------------------------------------------------- | |
34ce8d31 | 21 | enum anaModes {mLocal, mLocalCAF,mPROOF,mGRID}; |
22 | //mLocal: Analyze locally files in your computer | |
23 | //mLocalCAF: Analyze locally CAF files | |
24 | //mPROOF: Analyze CAF files with PROOF | |
37ff46b0 | 25 | |
ce8dba2f | 26 | //--------------------------------------------------------------------------- |
27 | //Settings to read locally several files, only for "mLocal" mode | |
28 | //The different values are default, they can be set with environmental | |
d6072244 | 29 | //variables: INDIR, PATTERN, NEVENT, respectivelly |
f78666e7 | 30 | char * kInDir = "/home/group/alice/schutz/analysis/PWG4/data"; |
31 | char * kPattern = ""; // Data are in diles /data/Run0, | |
030af48c | 32 | // /Data/Run1 ... |
f78666e7 | 33 | Int_t kEvent = 1; // Number of files |
ce8dba2f | 34 | //--------------------------------------------------------------------------- |
35 | //Collection file for grid analysis | |
36 | char * kXML = "collection.xml"; | |
37 | //--------------------------------------------------------------------------- | |
37ff46b0 | 38 | //Scale histograms from file. Change to kTRUE when xsection file exists |
39 | //Put name of file containing xsection | |
40 | //Put number of events per ESD file | |
41 | //This is an specific case for normalization of Pythia files. | |
d6072244 | 42 | const Bool_t kGetXSectionFromFileAndScale = kTRUE ; |
37ff46b0 | 43 | const char * kXSFileName = "pyxsec.root"; |
44 | const Int_t kNumberOfEventsPerFile = 100; | |
ce8dba2f | 45 | //--------------------------------------------------------------------------- |
37ff46b0 | 46 | |
ce8dba2f | 47 | const Bool_t kMC = kTRUE; //With real data kMC = kFALSE |
34ce8d31 | 48 | |
d6072244 | 49 | void anaGammaAnalysis(Int_t mode=mLocal, TString configName = "ConfigKineGammaDirect") |
34ce8d31 | 50 | { |
51 | // Main | |
ce8dba2f | 52 | |
53 | //-------------------------------------------------------------------- | |
34ce8d31 | 54 | // Load analysis libraries |
55 | // Look at the method below, | |
56 | // change whatever you need for your analysis case | |
ce8dba2f | 57 | // ------------------------------------------------------------------ |
34ce8d31 | 58 | LoadLibraries(mode) ; |
59 | ||
ce8dba2f | 60 | //------------------------------------------------------------------------------------------------- |
61 | //Create chain from ESD and from cross sections files, look below for options. | |
62 | //------------------------------------------------------------------------------------------------- | |
63 | TChain *chain = new TChain("esdTree") ; | |
64 | TChain * chainxs = new TChain("Xsection") ; | |
65 | CreateChain(mode, chain, chainxs); | |
37ff46b0 | 66 | |
34ce8d31 | 67 | if(chain){ |
ce8dba2f | 68 | AliLog::SetGlobalLogLevel(AliLog::kError);//Minimum prints on screen |
37ff46b0 | 69 | |
ce8dba2f | 70 | //-------------------------------------- |
71 | // Make the analysis manager | |
72 | //------------------------------------- | |
73 | AliAnalysisManager *mgr = new AliAnalysisManager("Manager", "Manager"); | |
74 | // MC handler | |
75 | if(kMC){ | |
76 | AliMCEventHandler* mcHandler = new AliMCEventHandler(); | |
77 | mgr->SetMCtruthEventHandler(mcHandler); | |
78 | } | |
79 | // AOD output handler | |
80 | AliAODHandler* aodHandler = new AliAODHandler(); | |
81 | aodHandler->SetOutputFileName("aod.root"); | |
82 | mgr->SetOutputEventHandler(aodHandler); | |
83 | // ESD handler | |
84 | AliESDInputHandler *esdHandler = new AliESDInputHandler(); | |
85 | mgr->SetInputEventHandler(esdHandler); | |
86 | ||
87 | //mgr->SetDebugLevel(10); // For debugging | |
88 | ||
89 | //------------------------------------------------------------------------- | |
90 | //Define task, put here any other task that you want to use. | |
91 | //------------------------------------------------------------------------- | |
92 | AliAnalysisTaskGamma * taskgamma = new AliAnalysisTaskGamma ("Gamma"); | |
93 | taskgamma->SetConfigFileName(configName); //Default name is ConfigGammaAnalysis | |
94 | mgr->AddTask(taskgamma); | |
95 | ||
96 | // Create containers for input/output | |
97 | AliAnalysisDataContainer *cinput1 = mgr->CreateContainer("cchain",TChain::Class(), | |
98 | AliAnalysisManager::kInputContainer); | |
99 | AliAnalysisDataContainer *coutput1 = mgr->CreateContainer("tree", TTree::Class(), | |
100 | AliAnalysisManager::kOutputContainer, "default"); | |
101 | AliAnalysisDataContainer *coutput2 = mgr->CreateContainer("gammahistos", TList::Class(), | |
102 | AliAnalysisManager::kOutputContainer, "gammahistos.root"); | |
103 | ||
104 | mgr->ConnectInput (taskgamma, 0, cinput1); | |
105 | mgr->ConnectOutput (taskgamma, 0, coutput1 ); | |
106 | mgr->ConnectOutput (taskgamma, 1, coutput2 ); | |
34ce8d31 | 107 | |
ce8dba2f | 108 | //------------------------ |
109 | //Scaling task | |
110 | //----------------------- | |
111 | Int_t nfiles = chainxs->GetEntries(); | |
112 | if(kGetXSectionFromFileAndScale && nfiles > 0){ | |
113 | //Get the cross section | |
114 | Double_t xsection=0; | |
115 | Float_t ntrials = 0; | |
116 | GetAverageXsection(chainxs, xsection, ntrials); | |
117 | ||
118 | AliAnaScale * scale = new AliAnaScale("scale") ; | |
119 | scale->Set(xsection/ntrials/kNumberOfEventsPerFile/nfiles) ; | |
120 | mgr->AddTask(scale); | |
121 | ||
122 | AliAnalysisDataContainer *coutput3 = mgr->CreateContainer("gammahistosscaled", TList::Class(), | |
123 | AliAnalysisManager::kOutputContainer, "gammahistosscaled.root"); | |
124 | mgr->ConnectInput (scale, 0, coutput2); | |
125 | mgr->ConnectOutput (scale, 0, coutput3 ); | |
126 | } | |
127 | ||
128 | //----------------------- | |
129 | // Run the analysis | |
130 | //----------------------- | |
131 | TString smode = ""; | |
132 | if (mode==mLocal || mode == mLocalCAF) | |
133 | smode = "local"; | |
134 | else if (mode==mPROOF) | |
135 | smode = "proof"; | |
136 | else if (mode==mGRID) | |
137 | smode = "grid"; | |
138 | ||
139 | mgr->InitAnalysis(); | |
140 | mgr->PrintStatus(); | |
141 | mgr->StartAnalysis(smode.Data(),chain); | |
34ce8d31 | 142 | } |
143 | else cout << "Chain was not produced ! "<<endl; | |
ce8dba2f | 144 | |
34ce8d31 | 145 | } |
146 | ||
147 | void LoadLibraries(const anaModes mode) { | |
148 | ||
149 | //-------------------------------------- | |
37ff46b0 | 150 | // Load the needed libraries most of them already loaded by aliroot |
34ce8d31 | 151 | //-------------------------------------- |
152 | gSystem->Load("libTree.so"); | |
153 | gSystem->Load("libGeom.so"); | |
154 | gSystem->Load("libVMC.so"); | |
155 | gSystem->Load("libXMLIO.so"); | |
156 | ||
ce8dba2f | 157 | //---------------------------------------------------------- |
34ce8d31 | 158 | // >>>>>>>>>>> Local mode <<<<<<<<<<<<<< |
ce8dba2f | 159 | //---------------------------------------------------------- |
34ce8d31 | 160 | if (mode==mLocal || mode == mLocalCAF || mode == mGRID) { |
37ff46b0 | 161 | //-------------------------------------------------------- |
162 | // If you want to use already compiled libraries | |
163 | // in the aliroot distribution | |
164 | //-------------------------------------------------------- | |
165 | //gSystem->Load("libSTEERBase"); | |
166 | //gSystem->Load("libESD"); | |
167 | //gSystem->Load("libAOD"); | |
168 | //gSystem->Load("libANALYSIS"); | |
d6072244 | 169 | //gSystem->Load("libANALYSISalice"); |
37ff46b0 | 170 | //gSystem->Load("libPWG4Gamma"); |
ce8dba2f | 171 | |
37ff46b0 | 172 | //-------------------------------------------------------- |
d6072244 | 173 | //If you want to use root and par files from aliroot |
37ff46b0 | 174 | //-------------------------------------------------------- |
175 | SetupPar("STEERBase"); | |
176 | SetupPar("ESD"); | |
177 | SetupPar("AOD"); | |
178 | SetupPar("ANALYSIS"); | |
d6072244 | 179 | SetupPar("ANALYSISalice"); |
37ff46b0 | 180 | SetupPar("PWG4Gamma"); |
181 | ||
34ce8d31 | 182 | } |
ce8dba2f | 183 | |
184 | //--------------------------------------------------------- | |
34ce8d31 | 185 | // <<<<<<<<<< PROOF mode >>>>>>>>>>>> |
ce8dba2f | 186 | //--------------------------------------------------------- |
34ce8d31 | 187 | else if (mode==mPROOF) { |
188 | // | |
189 | // Connect to proof | |
190 | // Put appropriate username here | |
191 | // TProof::Reset("proof://mgheata@lxb6046.cern.ch"); | |
192 | TProof::Open("proof://mgheata@lxb6046.cern.ch"); | |
193 | ||
194 | // gProof->ClearPackages(); | |
195 | // gProof->ClearPackage("ESD"); | |
196 | // gProof->ClearPackage("AOD"); | |
197 | // gProof->ClearPackage("ANALYSIS"); | |
198 | // gProof->ClearPackage("PWG4Gamma"); | |
199 | ||
200 | // Enable the STEERBase Package | |
201 | gProof->UploadPackage("STEERBase.par"); | |
202 | gProof->EnablePackage("STEERBase"); | |
203 | // Enable the ESD Package | |
204 | gProof->UploadPackage("ESD.par"); | |
205 | gProof->EnablePackage("ESD"); | |
206 | // Enable the AOD Package | |
207 | gProof->UploadPackage("AOD.par"); | |
208 | gProof->EnablePackage("AOD"); | |
209 | // Enable the Analysis Package | |
210 | gProof->UploadPackage("ANALYSIS.par"); | |
211 | gProof->EnablePackage("ANALYSIS"); | |
212 | // Enable gamma jet analysis | |
213 | gProof->UploadPackage("PWG4Gamma.par"); | |
214 | gProof->EnablePackage("PWG4Gamma"); | |
215 | // | |
216 | gProof->ShowEnabledPackages(); | |
217 | } | |
218 | ||
219 | } | |
220 | ||
d6072244 | 221 | void SetupPar(char* pararchivename) |
34ce8d31 | 222 | { |
34ce8d31 | 223 | //Load par files, create analysis libraries |
224 | //For testing, if par file already decompressed and modified | |
225 | //classes then do not decompress. | |
ce8dba2f | 226 | |
f78666e7 | 227 | TString cdir(Form("%s", gSystem->WorkingDirectory() )) ; |
228 | TString parpar(Form("%s.par", pararchivename)) ; | |
229 | if ( gSystem->AccessPathName(parpar.Data()) ) { | |
230 | gSystem->ChangeDirectory(gSystem->Getenv("ALICE_ROOT")) ; | |
231 | TString processline(Form(".! make %s", parpar.Data())) ; | |
232 | gROOT->ProcessLine(processline.Data()) ; | |
233 | gSystem->ChangeDirectory(cdir) ; | |
234 | processline = Form(".! mv /tmp/%s .", parpar.Data()) ; | |
235 | gROOT->ProcessLine(processline.Data()) ; | |
236 | } | |
237 | if ( gSystem->AccessPathName(pararchivename) ) { | |
238 | TString processline = Form(".! tar xvzf %s",parpar.Data()) ; | |
239 | gROOT->ProcessLine(processline.Data()); | |
240 | } | |
ce8dba2f | 241 | |
f78666e7 | 242 | TString ocwd = gSystem->WorkingDirectory(); |
243 | gSystem->ChangeDirectory(pararchivename); | |
244 | ||
245 | // check for BUILD.sh and execute | |
246 | if (!gSystem->AccessPathName("PROOF-INF/BUILD.sh")) { | |
247 | printf("*******************************\n"); | |
248 | printf("*** Building PAR archive ***\n"); | |
d6072244 | 249 | cout<<pararchivename<<endl; |
f78666e7 | 250 | printf("*******************************\n"); |
34ce8d31 | 251 | |
f78666e7 | 252 | if (gSystem->Exec("PROOF-INF/BUILD.sh")) { |
253 | Error("runProcess","Cannot Build the PAR Archive! - Abort!"); | |
254 | return -1; | |
34ce8d31 | 255 | } |
34ce8d31 | 256 | } |
f78666e7 | 257 | // check for SETUP.C and execute |
258 | if (!gSystem->AccessPathName("PROOF-INF/SETUP.C")) { | |
259 | printf("*******************************\n"); | |
260 | printf("*** Setup PAR archive ***\n"); | |
d6072244 | 261 | cout<<pararchivename<<endl; |
f78666e7 | 262 | printf("*******************************\n"); |
263 | gROOT->Macro("PROOF-INF/SETUP.C"); | |
264 | } | |
265 | ||
266 | gSystem->ChangeDirectory(ocwd.Data()); | |
267 | printf("Current dir: %s\n", ocwd.Data()); | |
34ce8d31 | 268 | } |
269 | ||
270 | ||
f78666e7 | 271 | |
ce8dba2f | 272 | void CreateChain(const anaModes mode, TChain * chain, TChain * chainxs){ |
273 | //Fills chain with data | |
34ce8d31 | 274 | TString ocwd = gSystem->WorkingDirectory(); |
ce8dba2f | 275 | |
276 | //----------------------------------------------------------- | |
34ce8d31 | 277 | //Analysis of CAF data locally and with PROOF |
ce8dba2f | 278 | //----------------------------------------------------------- |
34ce8d31 | 279 | if(mode ==mPROOF || mode ==mLocalCAF){ |
280 | // Chain from CAF | |
281 | gROOT->LoadMacro("$ALICE_ROOT/PWG0/CreateESDChain.C"); | |
282 | // The second parameter is the number of input files in the chain | |
283 | chain = CreateESDChain("ESD12001.txt", 5); | |
284 | } | |
ce8dba2f | 285 | |
286 | //--------------------------------------- | |
34ce8d31 | 287 | //Local files analysis |
ce8dba2f | 288 | //--------------------------------------- |
289 | else if(mode == mLocal){ | |
d6072244 | 290 | //If you want to add several ESD files sitting in a common directory INDIR |
291 | //Specify as environmental variables the directory (INDIR), the number of files | |
34ce8d31 | 292 | //to analyze (NEVENT) and the pattern name of the directories with files (PATTERN) |
ce8dba2f | 293 | |
d6072244 | 294 | if(gSystem->Getenv("INDIR")) |
295 | kInDir = gSystem->Getenv("INDIR") ; | |
296 | else cout<<"INDIR not set, use default: "<<kInDir<<endl; | |
ce8dba2f | 297 | |
030af48c | 298 | if(gSystem->Getenv("PATTERN")) |
299 | kPattern = gSystem->Getenv("PATTERN") ; | |
300 | else cout<<"PATTERN not set, use default: "<<kPattern<<endl; | |
ce8dba2f | 301 | |
37ff46b0 | 302 | if(gSystem->Getenv("NEVENT")) |
303 | kEvent = atoi(gSystem->Getenv("NEVENT")) ; | |
030af48c | 304 | else cout<<"NEVENT not set, use default: "<<kEvent<<endl; |
37ff46b0 | 305 | |
34ce8d31 | 306 | //Check if env variables are set and are correct |
307 | if ( kInDir && kEvent) { | |
308 | printf("Get %d files from directory %s\n",kEvent,kInDir); | |
309 | if ( ! gSystem->cd(kInDir) ) {//check if ESDs directory exist | |
310 | printf("%s does not exist\n", kInDir) ; | |
311 | return ; | |
312 | } | |
d6072244 | 313 | cout<<"INDIR : "<<kInDir<<endl; |
34ce8d31 | 314 | cout<<"NEVENT : "<<kEvent<<endl; |
315 | cout<<"PATTERN: " <<kPattern<<endl; | |
37ff46b0 | 316 | |
34ce8d31 | 317 | //Loop on ESD files, add them to chain |
37ff46b0 | 318 | Int_t event =0; |
319 | Int_t skipped=0 ; | |
34ce8d31 | 320 | char file[120] ; |
ce8dba2f | 321 | char filexs[120] ; |
322 | ||
34ce8d31 | 323 | for (event = 0 ; event < kEvent ; event++) { |
ce8dba2f | 324 | sprintf(file, "%s/%s%d/AliESDs.root", kInDir,kPattern,event) ; |
325 | sprintf(filexs, "%s/%s%d/%s", kInDir,kPattern,event,kXSFileName) ; | |
34ce8d31 | 326 | TFile * fESD = 0 ; |
327 | //Check if file exists and add it, if not skip it | |
030af48c | 328 | if ( fESD = TFile::Open(file)) { |
34ce8d31 | 329 | if ( fESD->Get("esdTree") ) { |
37ff46b0 | 330 | printf("++++ Adding %s\n", file) ; |
331 | chain->AddFile(file); | |
ce8dba2f | 332 | chainxs->Add(filexs) ; |
34ce8d31 | 333 | } |
ce8dba2f | 334 | } |
335 | else { | |
336 | printf("---- Skipping %s\n", file) ; | |
337 | skipped++ ; | |
338 | } | |
34ce8d31 | 339 | } |
340 | printf("number of entries # %lld, skipped %d\n", chain->GetEntries(), skipped*100) ; | |
341 | } | |
342 | else { | |
ce8dba2f | 343 | TString input = "AliESDs.root" ; |
34ce8d31 | 344 | cout<<">>>>>> No list added, take a single file <<<<<<<<< "<<input<<endl; |
345 | chain->AddFile(input); | |
346 | } | |
ce8dba2f | 347 | |
34ce8d31 | 348 | }// local files analysis |
ce8dba2f | 349 | |
350 | //------------------------------ | |
34ce8d31 | 351 | //GRID xml files |
ce8dba2f | 352 | //----------------------------- |
34ce8d31 | 353 | else if(mode == mGRID){ |
ce8dba2f | 354 | //Get colection file. It is specified by the environmental |
355 | //variable XML | |
356 | ||
34ce8d31 | 357 | if(gSystem->Getenv("XML") ) |
358 | kXML = gSystem->Getenv("XML"); | |
359 | else | |
ce8dba2f | 360 | sprintf(kXML, "collection.xml") ; |
34ce8d31 | 361 | |
362 | if (!TFile::Open(kXML)) { | |
363 | printf("No collection file with name -- %s -- was found\n",kXML); | |
364 | return ; | |
365 | } | |
ce8dba2f | 366 | else cout<<"XML file "<<kXML<<endl; |
34ce8d31 | 367 | |
ce8dba2f | 368 | //Load necessary libraries and connect to the GRID |
f78666e7 | 369 | gSystem->Load("libNetx.so") ; |
370 | gSystem->Load("libRAliEn.so"); | |
371 | TGrid::Connect("alien://") ; | |
ce8dba2f | 372 | |
373 | //Feed Grid with collection file | |
374 | //TGridCollection * collection = (TGridCollection*)gROOT->ProcessLine(Form("TAlienCollection::Open(\"%s\", 0)", kXML)); | |
375 | TGridCollection * collection = (TGridCollection*) TAlienCollection::Open(kXML); | |
34ce8d31 | 376 | if (! collection) { |
377 | AliError(Form("%s not found", kXML)) ; | |
378 | return kFALSE ; | |
379 | } | |
34ce8d31 | 380 | TGridResult* result = collection->GetGridResult("",0 ,0); |
ce8dba2f | 381 | |
34ce8d31 | 382 | // Makes the ESD chain |
383 | printf("*** Getting the Chain ***\n"); | |
f78666e7 | 384 | for (Int_t index = 0; index < result->GetEntries(); index++) { |
385 | TString alienURL = result->GetKey(index, "turl") ; | |
386 | cout << "================== " << alienURL << endl ; | |
387 | chain->Add(alienURL) ; | |
ce8dba2f | 388 | alienURL.ReplaceAll("AliESDs.root",kXSFileName); |
389 | chainxs->Add(alienURL) ; | |
f78666e7 | 390 | } |
34ce8d31 | 391 | }// xml analysis |
392 | ||
393 | gSystem->ChangeDirectory(ocwd.Data()); | |
34ce8d31 | 394 | } |
37ff46b0 | 395 | |
396 | //________________________________________________ | |
ce8dba2f | 397 | void GetAverageXsection(TTree * tree, Double_t & xs, Float_t & ntr) |
37ff46b0 | 398 | { |
399 | // Read the PYTHIA statistics from the file pyxsec.root created by | |
400 | // the function WriteXsection(): | |
401 | // integrated cross section (xsection) and | |
402 | // the number of Pyevent() calls (ntrials) | |
403 | // and calculate the weight per one event xsection/ntrials | |
404 | // The spectrum calculated by a user should be | |
405 | // multiplied by this weight, something like this: | |
406 | // TH1F *userSpectrum ... // book and fill the spectrum | |
407 | // userSpectrum->Scale(weight) | |
408 | // | |
409 | // Yuri Kharlov 19 June 2007 | |
ce8dba2f | 410 | // Gustavo Conesa 15 April 2008 |
411 | Double_t xsection = 0; | |
412 | UInt_t ntrials = 0; | |
413 | xs = 0; | |
414 | ntr = 0; | |
415 | ||
416 | Int_t nfiles = tree->GetEntries() ; | |
417 | if (tree && nfiles > 0) { | |
418 | tree->SetBranchAddress("xsection",&xsection); | |
419 | tree->SetBranchAddress("ntrials",&ntrials); | |
420 | for(Int_t i = 0; i < nfiles; i++){ | |
421 | tree->GetEntry(i); | |
422 | xs += xsection ; | |
423 | ntr += ntrials ; | |
424 | cout << "xsection " <<xsection<<" ntrials "<<ntrials<<endl; | |
425 | } | |
426 | ||
427 | xs = xs / nfiles; | |
428 | ntr = ntr / nfiles; | |
429 | cout << "-----------------------------------------------------------------"<<endl; | |
430 | cout << "Average of "<< nfiles<<" files: xsection " <<xs<<" ntrials "<<ntr<<endl; | |
431 | cout << "-----------------------------------------------------------------"<<endl; | |
432 | } | |
433 | else cout << " >>>> Empty tree !!!! <<<<< "<<endl; | |
434 | ||
435 | } | |
37ff46b0 | 436 | |
37ff46b0 | 437 | |
37ff46b0 | 438 |