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e2213ed5 | 1 | /** |
2 | * @file MakeForwardQA.C | |
3 | * @author Christian Holm Christensen <cholm@dalsgaard.hehi.nbi.dk> | |
4 | * @date Wed Mar 23 14:08:14 2011 | |
5 | * | |
6 | * @brief Generate energy loss fits | |
7 | * | |
bd6f5206 | 8 | * @ingroup pwglf_forward_scripts_makers |
e2213ed5 | 9 | */ |
10 | /** | |
11 | * Run a pass on ESD data to produce the energ loss fits | |
12 | * | |
13 | * If the ROOT AliEn interface library (libRAliEn) can be loaded, | |
14 | * and the parameter @a name is not empty, then use the plugin to do | |
15 | * the analysis. Note that in this case, the output is placed | |
16 | * in a sub-directory named by @a name after escaping spaces and special | |
17 | * characters | |
18 | * | |
19 | * If PROOF mode is selected, then Terminate will be run on the master node | |
20 | * in any case. | |
21 | * | |
22 | * @param esddir ESD input directory. Any file matching the pattern | |
23 | * *AliESDs*.root are added to the chain | |
24 | * @param nEvents Number of events to process. If 0 or less, then | |
25 | * all events are analysed | |
26 | * @param proof If larger then 1, run in PROOF-Lite mode with this | |
27 | * many number of workers. | |
28 | * @param mc Data is assumed to be from simulations | |
29 | * @param cent Whether to use centrality or not | |
30 | * @param name Name of train - free form. This will be the name | |
31 | * of the output directory if the plug-in is used | |
32 | * | |
bd6f5206 | 33 | * @ingroup pwglf_forward_eloss |
e2213ed5 | 34 | */ |
35 | void MakeForwardQA(const char* esddir, | |
36 | Int_t nEvents = 1000, | |
37 | Int_t proof = 0, | |
38 | Bool_t mc = false, | |
39 | Bool_t cent = false, | |
40 | const char* name = 0) | |
41 | { | |
42 | // --- Possibly use plug-in for this ------------------------------- | |
43 | if ((name && name[0] != '\0') && gSystem->Load("libRAliEn") >= 0) { | |
44 | const char* builder = | |
bd6f5206 | 45 | "$(ALICE_ROOT)/PWGLF/FORWARD/analysis2/trains/BuildTrain.C"; |
e2213ed5 | 46 | gROOT->LoadMacro(builder); |
47 | ||
48 | BuildTrain("MakeQATrain"); | |
49 | ||
50 | MakeQATrain t(name, cent, false); | |
51 | t.SetDataDir(esddir); | |
52 | t.SetDataSet(""); | |
53 | t.SetProofServer(Form("workers=%d",proof)); | |
54 | t.Run(proof > 0 ? "PROOF" : "LOCAL", "FULL", nEvents, mc, proof > 0); | |
55 | return; | |
56 | } | |
57 | ||
58 | // --- Libraries to load ------------------------------------------- | |
bd6f5206 | 59 | gROOT->Macro("$ALICE_ROOT/PWGLF/FORWARD/analysis2/scripts/LoadLibs.C"); |
e2213ed5 | 60 | |
61 | // --- Check for proof mode, and possibly upload pars -------------- | |
62 | if (proof > 0) { | |
bd6f5206 | 63 | gROOT->LoadMacro("$ALICE_ROOT/PWGLF/FORWARD/analysis2/scripts/LoadPars.C"); |
e2213ed5 | 64 | LoadPars(proof); |
65 | } | |
66 | ||
67 | // --- Our data chain ---------------------------------------------- | |
bd6f5206 | 68 | gROOT->LoadMacro("$ALICE_ROOT/PWGLF/FORWARD/analysis2/scripts/MakeChain.C"); |
e2213ed5 | 69 | TChain* chain = MakeChain("ESD",esddir, true); |
70 | // If 0 or less events is select, choose all | |
71 | if (nEvents <= 0) nEvents = chain->GetEntries(); | |
72 | Info("MakeForwardQA", "Will analyse %d events", nEvents); | |
73 | ||
74 | // --- Set the macro path ------------------------------------------ | |
bd6f5206 | 75 | gROOT->SetMacroPath(Form("%s:$(ALICE_ROOT)/PWGLF/FORWARD/analysis2:" |
e2213ed5 | 76 | "$ALICE_ROOT/ANALYSIS/macros", |
77 | gROOT->GetMacroPath())); | |
78 | ||
79 | // --- Creating the manager and handlers --------------------------- | |
80 | AliAnalysisManager *mgr = new AliAnalysisManager("Forward QA Train", | |
81 | "Forward QA"); | |
82 | AliAnalysisManager::SetCommonFileName("forward_qa.root"); | |
83 | ||
84 | // --- ESD input handler ------------------------------------------- | |
85 | AliESDInputHandler *esdHandler = new AliESDInputHandler(); | |
86 | mgr->SetInputEventHandler(esdHandler); | |
87 | ||
88 | // --- Monte Carlo handler ----------------------------------------- | |
89 | if (mc) { | |
90 | AliMCEventHandler* mcHandler = new AliMCEventHandler(); | |
91 | mgr->SetMCtruthEventHandler(mcHandler); | |
92 | mcHandler->SetReadTR(true); | |
93 | } | |
94 | ||
95 | // --- Add tasks --------------------------------------------------- | |
96 | gROOT->LoadMacro("AddTaskPhysicsSelection.C"); | |
97 | AddTaskPhysicsSelection(mc, kTRUE, kFALSE); | |
98 | ||
99 | // Centrality | |
100 | if(cent) { | |
101 | gROOT->LoadMacro("AddTaskCentrality.C"); | |
102 | AddTaskCentrality(); | |
103 | } | |
104 | ||
105 | // FMD ELoss fitter | |
106 | gROOT->LoadMacro("AddTaskForwardQA.C"); | |
107 | AddTaskForwardQA(mc, cent); | |
108 | ||
109 | // --- Run the analysis -------------------------------------------- | |
110 | TStopwatch t; | |
111 | if (!mgr->InitAnalysis()) { | |
112 | Error("RunManager", "Failed to initialize analysis train!"); | |
113 | return; | |
114 | } | |
115 | // Some informative output | |
116 | mgr->PrintStatus(); | |
117 | // mgr->SetDebugLevel(3); | |
118 | if (mgr->GetDebugLevel() < 1 && proof <= 0) | |
119 | mgr->SetUseProgressBar(kTRUE,100); | |
120 | ||
121 | // Run the train | |
122 | t.Start(); | |
123 | Printf("=== RUNNING ANALYSIS on %9d events ========================",nEvents); | |
124 | mgr->StartAnalysis(proof > 0 ? "proof" : "local", chain, nEvents); | |
125 | t.Stop(); | |
126 | t.Print(); | |
127 | } | |
128 | // | |
129 | // EOF | |
130 | // |