1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
17 // Author: Andrei Gheata, 31/05/2006
19 //==============================================================================
20 // AliAnalysysManager - Manager analysis class. Allows creation of several
21 // analysis tasks and data containers storing their input/output. Allows
22 // connecting/chaining tasks via shared data containers. Serializes the current
23 // event for all tasks depending only on initial input data.
24 //==============================================================================
26 //==============================================================================
28 #include <Riostream.h>
32 #include <TMethodCall.h>
38 #include "AliAnalysisTask.h"
39 #include "AliAnalysisDataContainer.h"
40 #include "AliAnalysisDataSlot.h"
41 #include "AliVEventHandler.h"
42 #include "AliSysInfo.h"
43 #include "AliAnalysisManager.h"
45 ClassImp(AliAnalysisManager)
47 AliAnalysisManager *AliAnalysisManager::fgAnalysisManager = NULL;
49 //______________________________________________________________________________
50 AliAnalysisManager::AliAnalysisManager(const char *name, const char *title)
53 fInputEventHandler(NULL),
54 fOutputEventHandler(NULL),
55 fMCtruthEventHandler(NULL),
58 fMode(kLocalAnalysis),
68 // Default constructor.
69 fgAnalysisManager = this;
70 fTasks = new TObjArray();
71 fTopTasks = new TObjArray();
72 fZombies = new TObjArray();
73 fContainers = new TObjArray();
74 fInputs = new TObjArray();
75 fOutputs = new TObjArray();
79 //______________________________________________________________________________
80 AliAnalysisManager::AliAnalysisManager(const AliAnalysisManager& other)
83 fInputEventHandler(NULL),
84 fOutputEventHandler(NULL),
85 fMCtruthEventHandler(NULL),
89 fInitOK(other.fInitOK),
99 fTasks = new TObjArray(*other.fTasks);
100 fTopTasks = new TObjArray(*other.fTopTasks);
101 fZombies = new TObjArray(*other.fZombies);
102 fContainers = new TObjArray(*other.fContainers);
103 fInputs = new TObjArray(*other.fInputs);
104 fOutputs = new TObjArray(*other.fOutputs);
105 fgAnalysisManager = this;
108 //______________________________________________________________________________
109 AliAnalysisManager& AliAnalysisManager::operator=(const AliAnalysisManager& other)
112 if (&other != this) {
113 TNamed::operator=(other);
114 fInputEventHandler = other.fInputEventHandler;
115 fOutputEventHandler = other.fOutputEventHandler;
116 fMCtruthEventHandler = other.fMCtruthEventHandler;
119 fNSysInfo = other.fNSysInfo;
121 fInitOK = other.fInitOK;
122 fDebug = other.fDebug;
123 fTasks = new TObjArray(*other.fTasks);
124 fTopTasks = new TObjArray(*other.fTopTasks);
125 fZombies = new TObjArray(*other.fZombies);
126 fContainers = new TObjArray(*other.fContainers);
127 fInputs = new TObjArray(*other.fInputs);
128 fOutputs = new TObjArray(*other.fOutputs);
129 fgAnalysisManager = this;
134 //______________________________________________________________________________
135 AliAnalysisManager::~AliAnalysisManager()
138 if (fTasks) {fTasks->Delete(); delete fTasks;}
139 if (fTopTasks) delete fTopTasks;
140 if (fZombies) delete fZombies;
141 if (fContainers) {fContainers->Delete(); delete fContainers;}
142 if (fInputs) delete fInputs;
143 if (fOutputs) delete fOutputs;
144 if (fgAnalysisManager==this) fgAnalysisManager = NULL;
147 //______________________________________________________________________________
148 Int_t AliAnalysisManager::GetEntry(Long64_t entry, Int_t getall)
150 // Read one entry of the tree or a whole branch.
152 cout << "== AliAnalysisManager::GetEntry()" << endl;
154 fCurrentEntry = entry;
155 return fTree ? fTree->GetTree()->GetEntry(entry, getall) : 0;
158 //______________________________________________________________________________
159 void AliAnalysisManager::Init(TTree *tree)
161 // The Init() function is called when the selector needs to initialize
162 // a new tree or chain. Typically here the branch addresses of the tree
163 // will be set. It is normaly not necessary to make changes to the
164 // generated code, but the routine can be extended by the user if needed.
165 // Init() will be called many times when running with PROOF.
168 printf("->AliAnalysisManager::InitTree(%s)\n", tree->GetName());
171 // Call InitTree of EventHandler
172 if (fOutputEventHandler) {
173 if (fMode == kProofAnalysis) {
174 fOutputEventHandler->Init(0x0, "proof");
176 fOutputEventHandler->Init(0x0, "local");
180 if (fInputEventHandler) {
181 if (fMode == kProofAnalysis) {
182 fInputEventHandler->Init(tree, "proof");
184 fInputEventHandler->Init(tree, "local");
187 // If no input event handler we need to get the tree once
189 if(!tree->GetTree()) tree->LoadTree(0);
193 if (fMCtruthEventHandler) {
194 if (fMode == kProofAnalysis) {
195 fMCtruthEventHandler->Init(0x0, "proof");
197 fMCtruthEventHandler->Init(0x0, "local");
201 if (!fInitOK) InitAnalysis();
202 if (!fInitOK) return;
204 AliAnalysisDataContainer *top = (AliAnalysisDataContainer*)fInputs->At(0);
206 cout<<"Error: No top input container !" <<endl;
211 printf("<-AliAnalysisManager::Init(%s)\n", tree->GetName());
215 //______________________________________________________________________________
216 void AliAnalysisManager::SlaveBegin(TTree *tree)
218 // The SlaveBegin() function is called after the Begin() function.
219 // When running with PROOF SlaveBegin() is called on each slave server.
220 // The tree argument is deprecated (on PROOF 0 is passed).
222 cout << "->AliAnalysisManager::SlaveBegin()" << endl;
225 // Call Init of EventHandler
226 if (fOutputEventHandler) {
227 if (fMode == kProofAnalysis) {
228 fOutputEventHandler->Init("proof");
230 fOutputEventHandler->Init("local");
234 if (fInputEventHandler) {
235 fInputEventHandler->SetInputTree(tree);
236 if (fMode == kProofAnalysis) {
237 fInputEventHandler->Init("proof");
239 fInputEventHandler->Init("local");
243 if (fMCtruthEventHandler) {
244 if (fMode == kProofAnalysis) {
245 fMCtruthEventHandler->Init("proof");
247 fMCtruthEventHandler->Init("local");
252 AliAnalysisTask *task;
253 // Call CreateOutputObjects for all tasks
254 while ((task=(AliAnalysisTask*)next())) {
255 TDirectory *curdir = gDirectory;
256 task->CreateOutputObjects();
257 if (curdir) curdir->cd();
261 cout << "<-AliAnalysisManager::SlaveBegin()" << endl;
265 //______________________________________________________________________________
266 Bool_t AliAnalysisManager::Notify()
268 // The Notify() function is called when a new file is opened. This
269 // can be either for a new TTree in a TChain or when when a new TTree
270 // is started when using PROOF. It is normaly not necessary to make changes
271 // to the generated code, but the routine can be extended by the
272 // user if needed. The return value is currently not used.
274 TFile *curfile = fTree->GetCurrentFile();
275 if (curfile && fDebug>1) printf("AliAnalysisManager::Notify() file: %s\n", curfile->GetName());
277 AliAnalysisTask *task;
278 // Call Notify for all tasks
279 while ((task=(AliAnalysisTask*)next()))
282 // Call Notify of the event handlers
283 if (fInputEventHandler) {
284 fInputEventHandler->Notify(curfile->GetName());
287 if (fOutputEventHandler) {
288 fOutputEventHandler->Notify(curfile->GetName());
291 if (fMCtruthEventHandler) {
292 fMCtruthEventHandler->Notify(curfile->GetName());
299 //______________________________________________________________________________
300 Bool_t AliAnalysisManager::Process(Long64_t entry)
302 // The Process() function is called for each entry in the tree (or possibly
303 // keyed object in the case of PROOF) to be processed. The entry argument
304 // specifies which entry in the currently loaded tree is to be processed.
305 // It can be passed to either TTree::GetEntry() or TBranch::GetEntry()
306 // to read either all or the required parts of the data. When processing
307 // keyed objects with PROOF, the object is already loaded and is available
308 // via the fObject pointer.
310 // This function should contain the "body" of the analysis. It can contain
311 // simple or elaborate selection criteria, run algorithms on the data
312 // of the event and typically fill histograms.
314 // WARNING when a selector is used with a TChain, you must use
315 // the pointer to the current TTree to call GetEntry(entry).
316 // The entry is always the local entry number in the current tree.
317 // Assuming that fChain is the pointer to the TChain being processed,
318 // use fChain->GetTree()->GetEntry(entry).
320 cout << "->AliAnalysisManager::Process(" << entry << ")" << endl;
322 if (fInputEventHandler) fInputEventHandler ->BeginEvent(entry);
323 if (fOutputEventHandler) fOutputEventHandler ->BeginEvent(entry);
324 if (fMCtruthEventHandler) fMCtruthEventHandler->BeginEvent(entry);
329 cout << "<-AliAnalysisManager::Process()" << endl;
334 //______________________________________________________________________________
335 void AliAnalysisManager::PackOutput(TList *target)
337 // Pack all output data containers in the output list. Called at SlaveTerminate
338 // stage in PROOF case for each slave.
340 cout << "->AliAnalysisManager::PackOutput()" << endl;
343 Error("PackOutput", "No target. Aborting.");
346 if (fInputEventHandler) fInputEventHandler ->Terminate();
347 if (fOutputEventHandler) fOutputEventHandler ->Terminate();
348 if (fMCtruthEventHandler) fMCtruthEventHandler->Terminate();
350 if (fMode == kProofAnalysis) {
351 TIter next(fOutputs);
352 AliAnalysisDataContainer *output;
353 while ((output=(AliAnalysisDataContainer*)next())) {
354 if (output->GetData()) {
355 if (output->GetProducer()->IsPostEventLoop()) continue;
356 AliAnalysisDataWrapper *wrap = output->ExportData();
357 // Output wrappers must delete data after merging (AG 13/11/07)
358 wrap->SetDeleteData(kTRUE);
359 if (fDebug > 1) printf(" Packing container %s...\n", output->GetName());
365 printf("<-AliAnalysisManager::PackOutput: output list contains %d containers\n", target->GetSize());
369 //______________________________________________________________________________
370 void AliAnalysisManager::ImportWrappers(TList *source)
372 // Import data in output containers from wrappers coming in source.
374 cout << "->AliAnalysisManager::ImportWrappers()" << endl;
376 TIter next(fOutputs);
377 AliAnalysisDataContainer *cont;
378 AliAnalysisDataWrapper *wrap;
380 while ((cont=(AliAnalysisDataContainer*)next())) {
381 if (cont->GetProducer()->IsPostEventLoop()) continue;
382 wrap = (AliAnalysisDataWrapper*)source->FindObject(cont->GetName());
383 if (!wrap && fDebug>1) {
384 printf("(WW) ImportWrappers: container %s not found in analysis output !\n", cont->GetName());
388 if (fDebug > 1) printf(" Importing data for container %s\n", wrap->GetName());
389 if (cont->GetFileName()) printf(" -> %s\n", cont->GetFileName());
390 cont->ImportData(wrap);
393 cout << "<-AliAnalysisManager::ImportWrappers(): "<< icont << " containers imported" << endl;
397 //______________________________________________________________________________
398 void AliAnalysisManager::UnpackOutput(TList *source)
400 // Called by AliAnalysisSelector::Terminate. Output containers should
401 // be in source in the same order as in fOutputs.
403 cout << "->AliAnalysisManager::UnpackOutput()" << endl;
406 Error("UnpackOutput", "No target. Aborting.");
410 printf(" Source list contains %d containers\n", source->GetSize());
413 if (fMode == kProofAnalysis) ImportWrappers(source);
415 TIter next(fOutputs);
416 AliAnalysisDataContainer *output;
417 while ((output=(AliAnalysisDataContainer*)next())) {
418 if (!output->GetData()) continue;
419 // Check if there are client tasks that run post event loop
420 if (output->HasConsumers()) {
421 // Disable event loop semaphore
422 output->SetPostEventLoop(kTRUE);
423 TObjArray *list = output->GetConsumers();
424 Int_t ncons = list->GetEntriesFast();
425 for (Int_t i=0; i<ncons; i++) {
426 AliAnalysisTask *task = (AliAnalysisTask*)list->At(i);
427 task->CheckNotify(kTRUE);
428 // If task is active, execute it
429 if (task->IsPostEventLoop() && task->IsActive()) {
431 cout << "== Executing post event loop task " << task->GetName() << endl;
437 // Check if the output need to be written to a file.
438 const char *filename = output->GetFileName();
439 if (!(strcmp(filename, "default"))) {
440 if (fOutputEventHandler) filename = fOutputEventHandler->GetOutputFileName();
443 if (!filename || !strlen(filename)) continue;
444 TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject(filename);
445 TDirectory *opwd = gDirectory;
446 if (file) file->cd();
447 else file = new TFile(filename, "RECREATE");
448 if (file->IsZombie()) continue;
449 // Reparent data to this file
451 if (output->GetData()->IsA())
452 callEnv.InitWithPrototype(output->GetData()->IsA(), "SetDirectory", "TDirectory*");
453 if (callEnv.IsValid()) {
454 callEnv.SetParam((Long_t) file);
455 callEnv.Execute(output->GetData());
457 output->GetData()->Write();
458 if (opwd) opwd->cd();
461 cout << "<-AliAnalysisManager::UnpackOutput()" << endl;
465 //______________________________________________________________________________
466 void AliAnalysisManager::Terminate()
468 // The Terminate() function is the last function to be called during
469 // a query. It always runs on the client, it can be used to present
470 // the results graphically.
472 cout << "->AliAnalysisManager::Terminate()" << endl;
474 AliAnalysisTask *task;
476 // Call Terminate() for tasks
477 while ((task=(AliAnalysisTask*)next())) task->Terminate();
479 cout << "<-AliAnalysisManager::Terminate()" << endl;
482 if (fInputEventHandler) fInputEventHandler ->TerminateIO();
483 if (fOutputEventHandler) fOutputEventHandler ->TerminateIO();
484 if (fMCtruthEventHandler) fMCtruthEventHandler->TerminateIO();
485 TIter next1(fOutputs);
486 AliAnalysisDataContainer *output;
487 while ((output=(AliAnalysisDataContainer*)next1())) {
488 // Close all files at output
489 const char *filename = output->GetFileName();
490 if (!(strcmp(filename, "default"))) {
491 if (fOutputEventHandler) filename = fOutputEventHandler->GetOutputFileName();
494 if (!filename || !strlen(filename)) continue;
495 TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject(filename);
496 if (!file || file->IsZombie()) continue;
500 Bool_t getsysInfo = ((fNSysInfo>0) && (fMode==kLocalAnalysis))?kTRUE:kFALSE;
502 TDirectory *cdir = gDirectory;
503 TFile f("syswatch.root", "RECREATE");
505 TTree *tree = AliSysInfo::MakeTree("syswatch.log");
506 tree->SetMarkerStyle(kCircle);
507 tree->SetMarkerColor(kBlue);
508 tree->SetMarkerSize(0.5);
509 if (!gROOT->IsBatch()) {
510 tree->SetAlias("event", "id0");
511 tree->SetAlias("memUSED", "mi.fMemUsed");
512 tree->SetAlias("userCPU", "pI.fCpuUser");
513 TCanvas *c = new TCanvas("SysInfo","SysInfo",10,10,800,600);
514 c->Divide(2,1,0.01,0.01);
516 tree->Draw("memUSED:event","","", 1234567890, 0);
518 tree->Draw("userCPU:event","","", 1234567890, 0);
524 if (cdir) cdir->cd();
528 //______________________________________________________________________________
529 void AliAnalysisManager::AddTask(AliAnalysisTask *task)
531 // Adds a user task to the global list of tasks.
532 task->SetActive(kFALSE);
536 //______________________________________________________________________________
537 AliAnalysisTask *AliAnalysisManager::GetTask(const char *name) const
539 // Retreive task by name.
540 if (!fTasks) return NULL;
541 return (AliAnalysisTask*)fTasks->FindObject(name);
544 //______________________________________________________________________________
545 AliAnalysisDataContainer *AliAnalysisManager::CreateContainer(const char *name,
546 TClass *datatype, EAliAnalysisContType type, const char *filename)
548 // Create a data container of a certain type. Types can be:
549 // kExchangeContainer = 0, used to exchange date between tasks
550 // kInputContainer = 1, used to store input data
551 // kOutputContainer = 2, used for posting results
552 if (fContainers->FindObject(name)) {
553 Error("CreateContainer","A container named %s already defined !\n",name);
556 AliAnalysisDataContainer *cont = new AliAnalysisDataContainer(name, datatype);
557 fContainers->Add(cont);
559 case kInputContainer:
562 case kOutputContainer:
564 if (filename && strlen(filename)) {
565 cont->SetFileName(filename);
566 cont->SetDataOwned(kFALSE); // data owned by the file
569 case kExchangeContainer:
575 //______________________________________________________________________________
576 Bool_t AliAnalysisManager::ConnectInput(AliAnalysisTask *task, Int_t islot,
577 AliAnalysisDataContainer *cont)
579 // Connect input of an existing task to a data container.
580 if (!fTasks->FindObject(task)) {
582 Warning("ConnectInput", "Task %s not registered. Now owned by analysis manager", task->GetName());
584 Bool_t connected = task->ConnectInput(islot, cont);
588 //______________________________________________________________________________
589 Bool_t AliAnalysisManager::ConnectOutput(AliAnalysisTask *task, Int_t islot,
590 AliAnalysisDataContainer *cont)
592 // Connect output of an existing task to a data container.
593 if (!fTasks->FindObject(task)) {
595 Warning("ConnectOutput", "Task %s not registered. Now owned by analysis manager", task->GetName());
597 Bool_t connected = task->ConnectOutput(islot, cont);
601 //______________________________________________________________________________
602 void AliAnalysisManager::CleanContainers()
604 // Clean data from all containers that have already finished all client tasks.
605 TIter next(fContainers);
606 AliAnalysisDataContainer *cont;
607 while ((cont=(AliAnalysisDataContainer *)next())) {
608 if (cont->IsOwnedData() &&
609 cont->IsDataReady() &&
610 cont->ClientsExecuted()) cont->DeleteData();
614 //______________________________________________________________________________
615 Bool_t AliAnalysisManager::InitAnalysis()
617 // Initialization of analysis chain of tasks. Should be called after all tasks
618 // and data containers are properly connected
619 // Check for input/output containers
621 // Check for top tasks (depending only on input data containers)
622 if (!fTasks->First()) {
623 Error("InitAnalysis", "Analysis has no tasks !");
627 AliAnalysisTask *task;
628 AliAnalysisDataContainer *cont;
631 Bool_t iszombie = kFALSE;
632 Bool_t istop = kTRUE;
634 while ((task=(AliAnalysisTask*)next())) {
637 Int_t ninputs = task->GetNinputs();
638 for (i=0; i<ninputs; i++) {
639 cont = task->GetInputSlot(i)->GetContainer();
647 Error("InitAnalysis", "Input slot %d of task %s has no container connected ! Declared zombie...",
650 if (iszombie) continue;
651 // Check if cont is an input container
652 if (istop && !fInputs->FindObject(cont)) istop=kFALSE;
653 // Connect to parent task
657 fTopTasks->Add(task);
661 Error("InitAnalysis", "No top task defined. At least one task should be connected only to input containers");
664 // Check now if there are orphan tasks
665 for (i=0; i<ntop; i++) {
666 task = (AliAnalysisTask*)fTopTasks->At(i);
671 while ((task=(AliAnalysisTask*)next())) {
672 if (!task->IsUsed()) {
674 Warning("InitAnalysis", "Task %s is orphan", task->GetName());
677 // Check the task hierarchy (no parent task should depend on data provided
678 // by a daughter task)
679 for (i=0; i<ntop; i++) {
680 task = (AliAnalysisTask*)fTopTasks->At(i);
681 if (task->CheckCircularDeps()) {
682 Error("InitAnalysis", "Found illegal circular dependencies between following tasks:");
687 // Check that all containers feeding post-event loop tasks are in the outputs list
688 TIter nextcont(fContainers); // loop over all containers
689 while ((cont=(AliAnalysisDataContainer*)nextcont())) {
690 if (!cont->IsPostEventLoop() && !fOutputs->FindObject(cont)) {
691 if (cont->HasConsumers()) {
692 // Check if one of the consumers is post event loop
693 TIter nextconsumer(cont->GetConsumers());
694 while ((task=(AliAnalysisTask*)nextconsumer())) {
695 if (task->IsPostEventLoop()) {
707 //______________________________________________________________________________
708 void AliAnalysisManager::PrintStatus(Option_t *option) const
710 // Print task hierarchy.
712 Info("PrintStatus", "Analysis manager %s not initialized : call InitAnalysis() first", GetName());
715 Bool_t getsysInfo = ((fNSysInfo>0) && (fMode==kLocalAnalysis))?kTRUE:kFALSE;
717 Info("PrintStatus", "System information will be collected each %lld events", fNSysInfo);
718 TIter next(fTopTasks);
719 AliAnalysisTask *task;
720 while ((task=(AliAnalysisTask*)next()))
721 task->PrintTask(option);
724 //______________________________________________________________________________
725 void AliAnalysisManager::ResetAnalysis()
727 // Reset all execution flags and clean containers.
731 //______________________________________________________________________________
732 void AliAnalysisManager::StartAnalysis(const char *type, TTree *tree, Long64_t nentries, Long64_t firstentry)
734 // Start analysis for this manager. Analysis task can be: LOCAL, PROOF or GRID.
735 // Process nentries starting from firstentry
737 Error("StartAnalysis","Analysis manager was not initialized !");
741 cout << "StartAnalysis: " << GetName() << endl;
743 TString anaType = type;
745 fMode = kLocalAnalysis;
747 if (anaType.Contains("proof")) fMode = kProofAnalysis;
748 else if (anaType.Contains("grid")) fMode = kGridAnalysis;
750 if (fMode == kGridAnalysis) {
751 Warning("StartAnalysis", "GRID analysis mode not implemented. Running local.");
752 fMode = kLocalAnalysis;
755 SetEventLoop(kFALSE);
756 // Disable all branches if requested and set event loop mode
758 if (TestBit(kDisableBranches)) {
759 printf("Disabling all branches...\n");
760 // tree->SetBranchStatus("*",0); // not yet working
766 TString ttype = "TTree";
767 if (tree->IsA() == TChain::Class()) {
768 chain = (TChain*)tree;
772 // Initialize locally all tasks
774 AliAnalysisTask *task;
775 while ((task=(AliAnalysisTask*)next())) {
783 AliAnalysisTask *task;
784 // Call CreateOutputObjects for all tasks
785 while ((task=(AliAnalysisTask*)next())) {
786 TDirectory *curdir = gDirectory;
787 task->CreateOutputObjects();
788 if (curdir) curdir->cd();
794 // Run tree-based analysis via AliAnalysisSelector
795 cout << "===== RUNNING LOCAL ANALYSIS " << GetName() << " ON TREE " << tree->GetName() << endl;
796 sprintf(line, "AliAnalysisSelector *selector = new AliAnalysisSelector((AliAnalysisManager*)0x%lx);",(ULong_t)this);
797 gROOT->ProcessLine(line);
798 sprintf(line, "((%s*)0x%lx)->Process(selector, \"\",%lld, %lld);",ttype.Data(),(ULong_t)tree, nentries, firstentry);
799 gROOT->ProcessLine(line);
802 if (!gROOT->GetListOfProofs() || !gROOT->GetListOfProofs()->GetEntries()) {
803 printf("StartAnalysis: no PROOF!!!\n");
806 sprintf(line, "gProof->AddInput((TObject*)0x%lx);", (ULong_t)this);
807 gROOT->ProcessLine(line);
810 cout << "===== RUNNING PROOF ANALYSIS " << GetName() << " ON CHAIN " << chain->GetName() << endl;
811 chain->Process("AliAnalysisSelector", "", nentries, firstentry);
813 printf("StartAnalysis: no chain\n");
818 Warning("StartAnalysis", "GRID analysis mode not implemented. Running local.");
822 //______________________________________________________________________________
823 void AliAnalysisManager::ExecAnalysis(Option_t *option)
826 static Long64_t ncalls = 0;
827 Bool_t getsysInfo = ((fNSysInfo>0) && (fMode==kLocalAnalysis))?kTRUE:kFALSE;
828 if (getsysInfo && ncalls==0) AliSysInfo::AddStamp("Start", (Int_t)ncalls);
831 Error("ExecAnalysis", "Analysis manager was not initialized !");
834 AliAnalysisTask *task;
835 // Check if the top tree is active.
838 // De-activate all tasks
839 while ((task=(AliAnalysisTask*)next())) task->SetActive(kFALSE);
840 AliAnalysisDataContainer *cont = (AliAnalysisDataContainer*)fInputs->At(0);
842 Error("ExecAnalysis","Cannot execute analysis in TSelector mode without at least one top container");
845 cont->SetData(fTree); // This will notify all consumers
846 Long64_t entry = fTree->GetTree()->GetReadEntry();
849 // Call BeginEvent() for optional input/output and MC services
850 if (fInputEventHandler) fInputEventHandler ->BeginEvent(entry);
851 if (fOutputEventHandler) fOutputEventHandler ->BeginEvent(entry);
852 if (fMCtruthEventHandler) fMCtruthEventHandler->BeginEvent(entry);
855 TIter next1(cont->GetConsumers());
856 while ((task=(AliAnalysisTask*)next1())) {
858 cout << " Executing task " << task->GetName() << endl;
861 task->ExecuteTask(option);
864 // Call FinishEvent() for optional output and MC services
865 if (fInputEventHandler) fInputEventHandler ->FinishEvent();
866 if (fOutputEventHandler) fOutputEventHandler ->FinishEvent();
867 if (fMCtruthEventHandler) fMCtruthEventHandler->FinishEvent();
868 // Gather system information if requested
869 if (getsysInfo && ((ncalls%fNSysInfo)==0))
870 AliSysInfo::AddStamp(Form("Event#%lld",ncalls),(Int_t)ncalls);
873 // The event loop is not controlled by TSelector
875 // Call BeginEvent() for optional input/output and MC services
876 if (fInputEventHandler) fInputEventHandler ->BeginEvent(-1);
877 if (fOutputEventHandler) fOutputEventHandler ->BeginEvent(-1);
878 if (fMCtruthEventHandler) fMCtruthEventHandler->BeginEvent(-1);
879 TIter next2(fTopTasks);
880 while ((task=(AliAnalysisTask*)next2())) {
881 task->SetActive(kTRUE);
883 cout << " Executing task " << task->GetName() << endl;
885 task->ExecuteTask(option);
888 // Call FinishEvent() for optional output and MC services
889 if (fInputEventHandler) fInputEventHandler ->FinishEvent();
890 if (fOutputEventHandler) fOutputEventHandler ->FinishEvent();
891 if (fMCtruthEventHandler) fMCtruthEventHandler->FinishEvent();
894 //______________________________________________________________________________
895 void AliAnalysisManager::FinishAnalysis()