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1e1befe8 | 1 | /* $Id: $ */ |
2 | //-------------------------------------------------- | |
d92b41ad | 3 | // Example macro to do analysis with the |
4 | // AliAnalysisTaksSE | |
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 | |
21 | //variables: INDIR, PATTERN, NEVENT, respectivelly | |
1e1befe8 | 22 | char * kInDir = "/user/data/files/"; |
23 | char * kPattern = ""; // Data are in files kInDir/kPattern+i | |
d92b41ad | 24 | Int_t kEvent = 1; // Number of files |
25 | //--------------------------------------------------------------------------- | |
26 | //Collection file for grid analysis | |
27 | char * kXML = "collection.xml"; | |
28 | //--------------------------------------------------------------------------- | |
29 | //Scale histograms from file. Change to kTRUE when xsection file exists | |
30 | //Put name of file containing xsection | |
31 | //Put number of events per ESD file | |
32 | //This is an specific case for normalization of Pythia files. | |
33 | const Bool_t kGetXSectionFromFileAndScale = kFALSE ; | |
34 | const char * kXSFileName = "pyxsec.root"; | |
35 | const Int_t kNumberOfEventsPerFile = 100; | |
36 | //--------------------------------------------------------------------------- | |
37 | ||
38 | const Bool_t kMC = kTRUE; //With real data kMC = kFALSE | |
1e1befe8 | 39 | const TString kInputData = "ESD";//ESD, AOD, MC |
40 | TString kTreeName = "esdTree"; | |
d92b41ad | 41 | |
42 | void anaExampleTask(Int_t mode=mLocal) | |
43 | { | |
44 | // Main | |
45 | ||
46 | //-------------------------------------------------------------------- | |
47 | // Load analysis libraries | |
48 | // Look at the method below, | |
49 | // change whatever you need for your analysis case | |
50 | // ------------------------------------------------------------------ | |
51 | LoadLibraries(mode) ; | |
52 | ||
53 | //------------------------------------------------------------------------------------------------- | |
54 | //Create chain from ESD and from cross sections files, look below for options. | |
55 | //------------------------------------------------------------------------------------------------- | |
1e1befe8 | 56 | if(kInputData == "ESD") kTreeName = "esdTree" ; |
57 | else if(kInputData == "AOD") kTreeName = "aodTree" ; | |
58 | else if (kInputData == "MC") kTreeName = "TE" ; | |
59 | else { | |
60 | cout<<"Wrong data type "<<kInputData<<endl; | |
61 | break; | |
62 | } | |
63 | ||
64 | TChain *chain = new TChain(kTreeName) ; | |
d92b41ad | 65 | TChain * chainxs = new TChain("Xsection") ; |
66 | CreateChain(mode, chain, chainxs); | |
67 | ||
68 | if(chain){ | |
69 | AliLog::SetGlobalLogLevel(AliLog::kError);//Minimum prints on screen | |
70 | ||
71 | //-------------------------------------- | |
72 | // Make the analysis manager | |
73 | //------------------------------------- | |
74 | AliAnalysisManager *mgr = new AliAnalysisManager("Manager", "Manager"); | |
75 | // MC handler | |
1e1befe8 | 76 | if(kMC || kInputData == "MC"){ |
d92b41ad | 77 | AliMCEventHandler* mcHandler = new AliMCEventHandler(); |
377108c5 | 78 | mcHandler->SetReadTR(kFALSE);//Do not search TrackRef file |
d92b41ad | 79 | mgr->SetMCtruthEventHandler(mcHandler); |
1e1befe8 | 80 | if( kInputData == "MC") mgr->SetInputEventHandler(NULL); |
d92b41ad | 81 | } |
82 | ||
83 | // AOD output handler | |
84 | AliAODHandler* aodoutHandler = new AliAODHandler(); | |
85 | aodoutHandler->SetOutputFileName("aod.root"); | |
86 | //aodoutHandler->SetCreateNonStandardAOD(); | |
87 | mgr->SetOutputEventHandler(aodoutHandler); | |
88 | ||
89 | //input | |
90 | if(kInputData == "ESD"){ | |
91 | // ESD handler | |
92 | AliESDInputHandler *esdHandler = new AliESDInputHandler(); | |
93 | mgr->SetInputEventHandler(esdHandler); | |
94 | } | |
95 | if(kInputData == "AOD"){ | |
96 | // AOD handler | |
97 | AliAODInputHandler *aodHandler = new AliAODInputHandler(); | |
98 | mgr->SetInputEventHandler(aodHandler); | |
99 | } | |
100 | ||
1e1befe8 | 101 | //mgr->SetDebugLevel(-1); // For debugging |
d92b41ad | 102 | |
103 | //------------------------------------------------------------------------- | |
104 | //Define task, put here any other task that you want to use. | |
105 | //------------------------------------------------------------------------- | |
106 | AliAnalysisTaskPHOSExample * taskex = new AliAnalysisTaskPHOSExample ("Gamma"); | |
107 | mgr->AddTask(taskex); | |
108 | ||
109 | // Create containers for input/output | |
8a546c82 | 110 | AliAnalysisDataContainer *cinput1 = mgr->GetCommonInputContainer(); |
111 | AliAnalysisDataContainer *coutput1 = mgr->GetCommonOutputContainer(); | |
d92b41ad | 112 | AliAnalysisDataContainer *coutput2 = mgr->CreateContainer("histos", TList::Class(), |
113 | AliAnalysisManager::kOutputContainer, "histos.root"); | |
114 | ||
115 | mgr->ConnectInput (taskex, 0, cinput1); | |
116 | mgr->ConnectOutput (taskex, 0, coutput1 ); | |
117 | mgr->ConnectOutput (taskex, 1, coutput2 ); | |
118 | ||
119 | //------------------------ | |
120 | //Scaling task | |
121 | //----------------------- | |
122 | Int_t nfiles = chainxs->GetEntries(); | |
123 | if(kGetXSectionFromFileAndScale && nfiles > 0){ | |
124 | //Get the cross section | |
125 | Double_t xsection=0; | |
126 | Float_t ntrials = 0; | |
127 | GetAverageXsection(chainxs, xsection, ntrials); | |
128 | ||
129 | AliAnaScale * scale = new AliAnaScale("scale") ; | |
e5dbdaf0 | 130 | scale->Set(xsection/ntrials/nfiles) ; |
1e1befe8 | 131 | scale->MakeSumw2(kFALSE);//If you want histograms with error bars set to kTRUE |
132 | //scale->SetDebugLevel(2); | |
d92b41ad | 133 | mgr->AddTask(scale); |
1e1befe8 | 134 | |
d92b41ad | 135 | AliAnalysisDataContainer *coutput3 = mgr->CreateContainer("histosscaled", TList::Class(), |
136 | AliAnalysisManager::kOutputContainer, "gammahistosscaled.root"); | |
137 | mgr->ConnectInput (scale, 0, coutput2); | |
138 | mgr->ConnectOutput (scale, 0, coutput3 ); | |
139 | } | |
140 | ||
141 | //----------------------- | |
142 | // Run the analysis | |
143 | //----------------------- | |
144 | TString smode = ""; | |
145 | if (mode==mLocal || mode == mLocalCAF) | |
146 | smode = "local"; | |
147 | else if (mode==mPROOF) | |
148 | smode = "proof"; | |
149 | else if (mode==mGRID) | |
29d1ef1d | 150 | smode = "local"; |
d92b41ad | 151 | |
152 | mgr->InitAnalysis(); | |
153 | mgr->PrintStatus(); | |
154 | mgr->StartAnalysis(smode.Data(),chain); | |
1e1befe8 | 155 | |
156 | cout <<" Analysis ended sucessfully "<< endl ; | |
157 | ||
d92b41ad | 158 | } |
159 | else cout << "Chain was not produced ! "<<endl; | |
160 | ||
161 | } | |
162 | ||
163 | void LoadLibraries(const anaModes mode) { | |
164 | ||
165 | //-------------------------------------- | |
166 | // Load the needed libraries most of them already loaded by aliroot | |
167 | //-------------------------------------- | |
168 | gSystem->Load("libTree.so"); | |
169 | gSystem->Load("libGeom.so"); | |
170 | gSystem->Load("libVMC.so"); | |
171 | gSystem->Load("libXMLIO.so"); | |
172 | ||
173 | //---------------------------------------------------------- | |
174 | // >>>>>>>>>>> Local mode <<<<<<<<<<<<<< | |
175 | //---------------------------------------------------------- | |
176 | if (mode==mLocal || mode == mLocalCAF || mode == mGRID) { | |
177 | //-------------------------------------------------------- | |
178 | // If you want to use already compiled libraries | |
179 | // in the aliroot distribution | |
180 | //-------------------------------------------------------- | |
181 | //gSystem->Load("libSTEERBase"); | |
182 | //gSystem->Load("libESD"); | |
183 | //gSystem->Load("libAOD"); | |
184 | //gSystem->Load("libANALYSIS"); | |
185 | //gSystem->Load("libANALYSISalice"); | |
e5dbdaf0 | 186 | //gSystem->Load("libPHOSUtils"); |
187 | //gSystem->Load("libEMCALUtils"); | |
3e0577a2 | 188 | //gSystem->Load("libPWG4PartCorrBase"); |
1e1befe8 | 189 | //gSystem->Load("libPWG4PartCorrDep"); |
3e0577a2 | 190 | |
d92b41ad | 191 | //-------------------------------------------------------- |
192 | //If you want to use root and par files from aliroot | |
193 | //-------------------------------------------------------- | |
194 | SetupPar("STEERBase"); | |
195 | SetupPar("ESD"); | |
196 | SetupPar("AOD"); | |
197 | SetupPar("ANALYSIS"); | |
198 | SetupPar("ANALYSISalice"); | |
e5dbdaf0 | 199 | SetupPar("PHOSUtils"); |
200 | SetupPar("EMCALUtils"); | |
3e0577a2 | 201 | SetupPar("PWG4PartCorrBase"); |
202 | SetupPar("PWG4PartCorrDep"); | |
d92b41ad | 203 | } |
204 | ||
205 | //--------------------------------------------------------- | |
206 | // <<<<<<<<<< PROOF mode >>>>>>>>>>>> | |
207 | //--------------------------------------------------------- | |
208 | else if (mode==mPROOF) { | |
209 | // | |
210 | // Connect to proof | |
211 | // Put appropriate username here | |
212 | // TProof::Reset("proof://mgheata@lxb6046.cern.ch"); | |
213 | TProof::Open("proof://mgheata@lxb6046.cern.ch"); | |
214 | ||
d92b41ad | 215 | // Enable the STEERBase Package |
216 | gProof->UploadPackage("STEERBase.par"); | |
217 | gProof->EnablePackage("STEERBase"); | |
218 | // Enable the ESD Package | |
219 | gProof->UploadPackage("ESD.par"); | |
220 | gProof->EnablePackage("ESD"); | |
221 | // Enable the AOD Package | |
222 | gProof->UploadPackage("AOD.par"); | |
223 | gProof->EnablePackage("AOD"); | |
224 | // Enable the Analysis Package | |
225 | gProof->UploadPackage("ANALYSIS.par"); | |
226 | gProof->EnablePackage("ANALYSIS"); | |
e5dbdaf0 | 227 | // Enable the PHOSUtils Package |
228 | gProof->UploadPackage("PHOSUtils.par"); | |
229 | gProof->EnablePackage("PHOSUtils"); | |
230 | // Enable the EMCALUtils Package | |
231 | gProof->UploadPackage("EMCALUtils.par"); | |
232 | gProof->EnablePackage("EMCALUtils"); | |
3e0577a2 | 233 | // Enable PartCorr analysis |
234 | gProof->UploadPackage("PWG4PartCorrBase.par"); | |
235 | gProof->EnablePackage("PWG4PartCorrBase"); | |
236 | gProof->UploadPackage("PWG4PartCorrDep.par"); | |
237 | gProof->EnablePackage("PWG4PartCorrDep"); | |
d92b41ad | 238 | // |
239 | gProof->ShowEnabledPackages(); | |
240 | } | |
241 | ||
242 | } | |
243 | ||
244 | void SetupPar(char* pararchivename) | |
245 | { | |
246 | //Load par files, create analysis libraries | |
247 | //For testing, if par file already decompressed and modified | |
248 | //classes then do not decompress. | |
249 | ||
250 | TString cdir(Form("%s", gSystem->WorkingDirectory() )) ; | |
251 | TString parpar(Form("%s.par", pararchivename)) ; | |
252 | if ( gSystem->AccessPathName(parpar.Data()) ) { | |
253 | gSystem->ChangeDirectory(gSystem->Getenv("ALICE_ROOT")) ; | |
254 | TString processline(Form(".! make %s", parpar.Data())) ; | |
255 | gROOT->ProcessLine(processline.Data()) ; | |
256 | gSystem->ChangeDirectory(cdir) ; | |
1e1befe8 | 257 | //processline = Form(".! mv /tmp/%s .", parpar.Data()) ; |
258 | processline = Form(".! mv $ALICE_ROOT/%s .", parpar.Data()) ; | |
d92b41ad | 259 | gROOT->ProcessLine(processline.Data()) ; |
260 | } | |
261 | if ( gSystem->AccessPathName(pararchivename) ) { | |
262 | TString processline = Form(".! tar xvzf %s",parpar.Data()) ; | |
263 | gROOT->ProcessLine(processline.Data()); | |
264 | } | |
265 | ||
266 | TString ocwd = gSystem->WorkingDirectory(); | |
267 | gSystem->ChangeDirectory(pararchivename); | |
268 | ||
269 | // check for BUILD.sh and execute | |
270 | if (!gSystem->AccessPathName("PROOF-INF/BUILD.sh")) { | |
271 | printf("*******************************\n"); | |
272 | printf("*** Building PAR archive ***\n"); | |
273 | cout<<pararchivename<<endl; | |
274 | printf("*******************************\n"); | |
275 | ||
276 | if (gSystem->Exec("PROOF-INF/BUILD.sh")) { | |
277 | Error("runProcess","Cannot Build the PAR Archive! - Abort!"); | |
278 | return -1; | |
279 | } | |
280 | } | |
281 | // check for SETUP.C and execute | |
282 | if (!gSystem->AccessPathName("PROOF-INF/SETUP.C")) { | |
283 | printf("*******************************\n"); | |
284 | printf("*** Setup PAR archive ***\n"); | |
285 | cout<<pararchivename<<endl; | |
286 | printf("*******************************\n"); | |
287 | gROOT->Macro("PROOF-INF/SETUP.C"); | |
288 | } | |
289 | ||
290 | gSystem->ChangeDirectory(ocwd.Data()); | |
291 | printf("Current dir: %s\n", ocwd.Data()); | |
292 | } | |
293 | ||
294 | ||
295 | ||
296 | void CreateChain(const anaModes mode, TChain * chain, TChain * chainxs){ | |
297 | //Fills chain with data | |
298 | TString ocwd = gSystem->WorkingDirectory(); | |
299 | ||
300 | //----------------------------------------------------------- | |
301 | //Analysis of CAF data locally and with PROOF | |
302 | //----------------------------------------------------------- | |
303 | if(mode ==mPROOF || mode ==mLocalCAF){ | |
304 | // Chain from CAF | |
305 | gROOT->LoadMacro("$ALICE_ROOT/PWG0/CreateESDChain.C"); | |
306 | // The second parameter is the number of input files in the chain | |
307 | chain = CreateESDChain("ESD12001.txt", 5); | |
308 | } | |
309 | ||
310 | //--------------------------------------- | |
311 | //Local files analysis | |
312 | //--------------------------------------- | |
313 | else if(mode == mLocal){ | |
314 | //If you want to add several ESD files sitting in a common directory INDIR | |
315 | //Specify as environmental variables the directory (INDIR), the number of files | |
316 | //to analyze (NEVENT) and the pattern name of the directories with files (PATTERN) | |
317 | ||
318 | if(gSystem->Getenv("INDIR")) | |
319 | kInDir = gSystem->Getenv("INDIR") ; | |
320 | else cout<<"INDIR not set, use default: "<<kInDir<<endl; | |
321 | ||
322 | if(gSystem->Getenv("PATTERN")) | |
323 | kPattern = gSystem->Getenv("PATTERN") ; | |
324 | else cout<<"PATTERN not set, use default: "<<kPattern<<endl; | |
325 | ||
326 | if(gSystem->Getenv("NEVENT")) | |
327 | kEvent = atoi(gSystem->Getenv("NEVENT")) ; | |
328 | else cout<<"NEVENT not set, use default: "<<kEvent<<endl; | |
329 | ||
330 | //Check if env variables are set and are correct | |
331 | if ( kInDir && kEvent) { | |
332 | printf("Get %d files from directory %s\n",kEvent,kInDir); | |
333 | if ( ! gSystem->cd(kInDir) ) {//check if ESDs directory exist | |
334 | printf("%s does not exist\n", kInDir) ; | |
335 | return ; | |
336 | } | |
337 | cout<<"INDIR : "<<kInDir<<endl; | |
338 | cout<<"NEVENT : "<<kEvent<<endl; | |
339 | cout<<"PATTERN: " <<kPattern<<endl; | |
1e1befe8 | 340 | |
341 | TString datafile=""; | |
342 | if(kInputData == "ESD") datafile = "AliESDs.root" ; | |
343 | else if(kInputData == "AOD") datafile = "aod.root" ; | |
344 | else if(kInputData == "MC") datafile = "galice.root" ; | |
345 | ||
d92b41ad | 346 | //Loop on ESD files, add them to chain |
347 | Int_t event =0; | |
348 | Int_t skipped=0 ; | |
349 | char file[120] ; | |
350 | char filexs[120] ; | |
351 | ||
352 | for (event = 0 ; event < kEvent ; event++) { | |
1e1befe8 | 353 | sprintf(file, "%s/%s%d/%s", kInDir,kPattern,event,datafile.Data()) ; |
d92b41ad | 354 | sprintf(filexs, "%s/%s%d/%s", kInDir,kPattern,event,kXSFileName) ; |
355 | TFile * fESD = 0 ; | |
356 | //Check if file exists and add it, if not skip it | |
357 | if ( fESD = TFile::Open(file)) { | |
1e1befe8 | 358 | if ( fESD->Get(kTreeName) ) { |
d92b41ad | 359 | printf("++++ Adding %s\n", file) ; |
360 | chain->AddFile(file); | |
361 | chainxs->Add(filexs) ; | |
362 | } | |
363 | } | |
364 | else { | |
365 | printf("---- Skipping %s\n", file) ; | |
366 | skipped++ ; | |
367 | } | |
368 | } | |
1e1befe8 | 369 | printf("number of entries # %lld, skipped %d\n", chain->GetEntries(), skipped) ; |
d92b41ad | 370 | } |
371 | else { | |
372 | TString input = "AliESDs.root" ; | |
373 | cout<<">>>>>> No list added, take a single file <<<<<<<<< "<<input<<endl; | |
374 | chain->AddFile(input); | |
375 | } | |
376 | ||
377 | }// local files analysis | |
378 | ||
379 | //------------------------------ | |
380 | //GRID xml files | |
381 | //----------------------------- | |
382 | else if(mode == mGRID){ | |
383 | //Get colection file. It is specified by the environmental | |
384 | //variable XML | |
385 | ||
386 | if(gSystem->Getenv("XML") ) | |
387 | kXML = gSystem->Getenv("XML"); | |
388 | else | |
389 | sprintf(kXML, "collection.xml") ; | |
390 | ||
391 | if (!TFile::Open(kXML)) { | |
392 | printf("No collection file with name -- %s -- was found\n",kXML); | |
393 | return ; | |
394 | } | |
395 | else cout<<"XML file "<<kXML<<endl; | |
396 | ||
397 | //Load necessary libraries and connect to the GRID | |
398 | gSystem->Load("libNetx.so") ; | |
399 | gSystem->Load("libRAliEn.so"); | |
400 | TGrid::Connect("alien://") ; | |
401 | ||
402 | //Feed Grid with collection file | |
403 | //TGridCollection * collection = (TGridCollection*)gROOT->ProcessLine(Form("TAlienCollection::Open(\"%s\", 0)", kXML)); | |
404 | TGridCollection * collection = (TGridCollection*) TAlienCollection::Open(kXML); | |
405 | if (! collection) { | |
406 | AliError(Form("%s not found", kXML)) ; | |
407 | return kFALSE ; | |
408 | } | |
409 | TGridResult* result = collection->GetGridResult("",0 ,0); | |
410 | ||
411 | // Makes the ESD chain | |
412 | printf("*** Getting the Chain ***\n"); | |
413 | for (Int_t index = 0; index < result->GetEntries(); index++) { | |
414 | TString alienURL = result->GetKey(index, "turl") ; | |
415 | cout << "================== " << alienURL << endl ; | |
416 | chain->Add(alienURL) ; | |
417 | alienURL.ReplaceAll("AliESDs.root",kXSFileName); | |
418 | chainxs->Add(alienURL) ; | |
419 | } | |
420 | }// xml analysis | |
421 | ||
422 | gSystem->ChangeDirectory(ocwd.Data()); | |
423 | } | |
424 | ||
425 | //________________________________________________ | |
426 | void GetAverageXsection(TTree * tree, Double_t & xs, Float_t & ntr) | |
427 | { | |
428 | // Read the PYTHIA statistics from the file pyxsec.root created by | |
429 | // the function WriteXsection(): | |
430 | // integrated cross section (xsection) and | |
431 | // the number of Pyevent() calls (ntrials) | |
432 | // and calculate the weight per one event xsection/ntrials | |
433 | // The spectrum calculated by a user should be | |
434 | // multiplied by this weight, something like this: | |
435 | // TH1F *userSpectrum ... // book and fill the spectrum | |
436 | // userSpectrum->Scale(weight) | |
437 | // | |
438 | // Yuri Kharlov 19 June 2007 | |
439 | // Gustavo Conesa 15 April 2008 | |
440 | Double_t xsection = 0; | |
441 | UInt_t ntrials = 0; | |
442 | xs = 0; | |
443 | ntr = 0; | |
444 | ||
445 | Int_t nfiles = tree->GetEntries() ; | |
446 | if (tree && nfiles > 0) { | |
447 | tree->SetBranchAddress("xsection",&xsection); | |
448 | tree->SetBranchAddress("ntrials",&ntrials); | |
449 | for(Int_t i = 0; i < nfiles; i++){ | |
450 | tree->GetEntry(i); | |
451 | xs += xsection ; | |
452 | ntr += ntrials ; | |
453 | cout << "xsection " <<xsection<<" ntrials "<<ntrials<<endl; | |
454 | } | |
455 | ||
456 | xs = xs / nfiles; | |
457 | ntr = ntr / nfiles; | |
458 | cout << "-----------------------------------------------------------------"<<endl; | |
459 | cout << "Average of "<< nfiles<<" files: xsection " <<xs<<" ntrials "<<ntr<<endl; | |
460 | cout << "-----------------------------------------------------------------"<<endl; | |
461 | } | |
462 | else cout << " >>>> Empty tree !!!! <<<<< "<<endl; | |
463 | ||
464 | } | |
465 | ||
466 | ||
467 |