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2a910c25 | 1 | #include "AliEventPoolManager.h" |
2 | ||
3 | ClassImp(AliEventPool) | |
4 | ||
5 | void AliEventPool::PrintInfo() const | |
6 | { | |
7 | cout << Form("%20s: %d events", "Pool capacity", fMixDepth) << endl; | |
8 | cout << Form("%20s: %d events, %d tracks", "Current size", | |
9 | GetCurrentNEvents(), NTracksInPool()) << endl; | |
10 | cout << Form("%20s: %.1f to %.1f", "Sub-event mult.", fMultMin, fMultMax) << endl; | |
11 | cout << Form("%20s: %.1f to %.1f", "Z-vtx range", fZvtxMin, fZvtxMax) << endl; | |
12 | ||
13 | return; | |
14 | } | |
15 | ||
16 | Bool_t AliEventPool::EventMatchesBin(Int_t mult, Double_t zvtx) const | |
17 | { | |
18 | return EventMatchesBin((Double_t) mult, zvtx); | |
19 | } | |
20 | ||
21 | Bool_t AliEventPool::EventMatchesBin(Double_t mult, Double_t zvtx) const | |
22 | { | |
23 | // Lower bin limit included; upper limit excluded. | |
24 | ||
25 | Bool_t multOK = (mult >= fMultMin && mult < fMultMax); | |
26 | Bool_t zvtxOK = (zvtx >= fZvtxMin && zvtx < fZvtxMax); | |
27 | return (multOK && zvtxOK); | |
28 | } | |
29 | ||
30 | Int_t AliEventPool::NTracksInPool() const | |
31 | { | |
32 | // Number of tracks for this cent, zvtx bin; possibly includes many | |
33 | // events. | |
34 | ||
35 | Int_t ntrk=0; | |
36 | for (Int_t i=0; i<(Int_t)fEvents.size(); ++i) { | |
37 | ntrk += fNTracksInEvent.at(i); | |
38 | } | |
39 | return ntrk; | |
40 | } | |
41 | ||
42 | Int_t AliEventPool::SetEventMultRange(Int_t multMin, Int_t multMax) | |
43 | { | |
44 | fMultMin = (Double_t)multMin; | |
45 | fMultMax = (Double_t)multMax; | |
46 | return 0; | |
47 | } | |
48 | ||
49 | Int_t AliEventPool::SetEventMultRange(Double_t multMin, Double_t multMax) | |
50 | { | |
51 | fMultMin = multMin; | |
52 | fMultMax = multMax; | |
53 | return 0; | |
54 | } | |
55 | ||
56 | Int_t AliEventPool::SetEventZvtxRange(Double_t zvtxMin, Double_t zvtxMax) | |
57 | { | |
58 | fZvtxMin = zvtxMin; | |
59 | fZvtxMax = zvtxMax; | |
60 | return 0; | |
61 | } | |
62 | ||
63 | Int_t AliEventPool::GlobalEventIndex(Int_t j) const | |
64 | { | |
65 | // Index returned from passing local pool event index. | |
66 | ||
67 | if (j < 0 || j >= (Int_t)fEventIndex.size()) { | |
68 | cout << "ERROR in AliEventPool::GlobalEventIndex(): " | |
69 | << " Invalid index " << j << endl; | |
70 | return -99; | |
71 | } | |
72 | return fEventIndex.at(j); | |
73 | } | |
74 | ||
75 | Int_t AliEventPool::UpdatePool(TObjArray *trk) | |
76 | { | |
77 | // A rolling buffer (a double-ended queue) is updated by removing | |
78 | // the oldest event, and appending the newest. | |
79 | ||
80 | static Int_t iEvent = -1; | |
81 | iEvent++; | |
82 | ||
83 | Int_t mult = trk->GetEntries(); | |
84 | Int_t nTrkA = NTracksInPool(); | |
85 | Int_t nTrkB = 0; | |
86 | Int_t nTrkC = 0; | |
87 | ||
88 | if (nTrkA < fTargetTrackDepth && ((nTrkA + mult) >= fTargetTrackDepth)) | |
89 | fNTimes++; | |
90 | ||
91 | // remove 0th element before appending this event | |
92 | if (NTracksInPool() >= fTargetTrackDepth) { | |
93 | TObjArray *fa = fEvents.front(); | |
94 | delete fa; | |
95 | fEvents.pop_front(); // remove first track array | |
96 | fNTracksInEvent.pop_front(); // remove first int | |
97 | fEventIndex.pop_front(); | |
98 | nTrkB = NTracksInPool(); | |
99 | } | |
100 | ||
101 | fNTracksInEvent.push_back(mult); | |
102 | fEvents.push_back(trk); | |
103 | fEventIndex.push_back(iEvent); | |
104 | nTrkC = NTracksInPool(); | |
105 | ||
106 | if (fNTimes==1) { | |
d94cc49b | 107 | if (AliEventPool::fDebug) { |
108 | cout << "\nPool " << MultBinIndex() << ", " << ZvtxBinIndex() | |
109 | << " ready at event "<< iEvent; | |
110 | PrintInfo(); | |
111 | cout << endl; | |
112 | } | |
2a910c25 | 113 | fNTimes++; // See this message exactly once/pool |
114 | } | |
115 | ||
116 | fWasUpdated = true; | |
117 | ||
118 | if (AliEventPool::fDebug) { | |
119 | cout << " Event " << fEventIndex.back(); | |
120 | cout << " PoolDepth = " << GetCurrentNEvents(); | |
121 | cout << " NTracksInCurrentEvent = " << NTracksInCurrentEvent(); | |
122 | } | |
123 | ||
124 | return fEvents.size(); | |
125 | } | |
126 | ||
127 | TObject* AliEventPool::GetRandomTrack() const | |
128 | { | |
129 | // Get any random track from the pool, sampled with uniform probability. | |
130 | ||
131 | UInt_t ranEvt = gRandom->Integer(fEvents.size()); | |
132 | TObjArray *tca = fEvents.at(ranEvt); | |
133 | UInt_t ranTrk = gRandom->Integer(tca->GetEntries()); | |
134 | TObject *trk = (TObject*)tca->At(ranTrk); | |
135 | return trk; | |
136 | } | |
137 | ||
138 | TObjArray* AliEventPool::GetEvent(Int_t i) const | |
139 | { | |
140 | if (i<0 || i>=(Int_t)fEvents.size()) { | |
141 | cout << "AliEventPool::GetEvent(" | |
142 | << i << "): Invalid index" << endl; | |
143 | return 0x0; | |
144 | } | |
145 | ||
146 | TObjArray *tca = fEvents.at(i); | |
147 | return tca; | |
148 | } | |
149 | ||
150 | TObjArray* AliEventPool::GetRandomEvent() const | |
151 | { | |
152 | UInt_t ranEvt = gRandom->Integer(fEvents.size()); | |
153 | TObjArray *tca = fEvents.at(ranEvt); | |
154 | return tca; | |
155 | } | |
156 | ||
157 | Int_t AliEventPool::NTracksInEvent(Int_t iEvent) const | |
158 | { | |
159 | // Return number of tracks in iEvent, which is the local pool index. | |
160 | ||
161 | Int_t n = -1; | |
162 | Int_t curEvent = fEventIndex.back(); | |
163 | Int_t offset = curEvent - iEvent; | |
164 | Int_t pos = fEventIndex.size() - offset - 1; | |
165 | ||
166 | if (offset==0) | |
167 | n = fNTracksInEvent.back(); | |
168 | else if (offset < 0 || iEvent < 0) { | |
169 | n = 0; | |
170 | } | |
171 | else if (offset > 0 && offset <= (int)fEventIndex.size()) { | |
172 | n = fNTracksInEvent.at(pos); | |
173 | } | |
174 | else | |
175 | cout << "Event info no longer in memory" << endl; | |
176 | return n; | |
177 | } | |
178 | ||
179 | ClassImp(AliEventPoolManager) | |
180 | ||
181 | AliEventPoolManager::AliEventPoolManager(Int_t depth, Int_t minNTracks, | |
182 | Int_t nMultBins, Double_t *multbins, | |
183 | Int_t nZvtxBins, Double_t *zvtxbins) : | |
184 | fDebug(0), fNMultBins(0), fNZvtxBins(0), fEvPool(0), fTargetTrackDepth(minNTracks) | |
185 | { | |
186 | // Constructor. | |
187 | ||
188 | InitEventPools(depth, nMultBins, multbins, nZvtxBins, zvtxbins); | |
189 | cout << "AliEventPoolManager initialized." << endl; | |
190 | } | |
191 | ||
192 | Int_t AliEventPoolManager::InitEventPools(Int_t depth, | |
193 | Int_t nMultBins, Double_t *multbin, | |
194 | Int_t nZvtxBins, Double_t *zvtxbin) | |
195 | { | |
196 | // Assign AliEventPoolManager members. | |
197 | ||
198 | fNMultBins = nMultBins; | |
199 | fNZvtxBins = nZvtxBins; | |
200 | ||
201 | for (Int_t iM=0; iM<nMultBins; iM++) { | |
202 | std::vector<AliEventPool*> evp; | |
203 | for (Int_t iZ=0; iZ<nZvtxBins; iZ++) { | |
204 | evp.push_back(new AliEventPool(depth, | |
205 | multbin[iM], multbin[iM+1], | |
206 | zvtxbin[iZ], zvtxbin[iZ+1] )); | |
207 | } | |
208 | fEvPool.push_back(evp); | |
209 | } | |
210 | ||
211 | for (Int_t iM=0; iM<nMultBins; iM++) { | |
212 | for (Int_t iZ=0; iZ<nZvtxBins; iZ++) { | |
213 | fEvPool.at(iM).at(iZ)->SetMultBinIndex(iM); | |
214 | fEvPool.at(iM).at(iZ)->SetZvtxBinIndex(iZ); | |
215 | fEvPool.at(iM).at(iZ)->SetTargetTrackDepth(fTargetTrackDepth); | |
216 | } | |
217 | } | |
218 | ||
219 | if (0) { | |
220 | cout << "fEvPool outer size: " << fEvPool.size() << endl; | |
221 | for (Int_t iM=0; iM<nMultBins; iM++) { | |
222 | for (Int_t iZ=0; iZ<nZvtxBins; iZ++) { | |
223 | if(fEvPool.at(iM).at(iZ)) { | |
224 | cout << "multiplicity bin: " << iM; | |
225 | cout << ", z-vertex bin: " << iZ; | |
226 | fEvPool.at(iM).at(iZ)->PrintInfo(); | |
227 | } | |
228 | } | |
229 | } | |
230 | } | |
231 | ||
232 | return fEvPool.size(); | |
233 | } | |
234 | ||
235 | AliEventPool *AliEventPoolManager::GetEventPool(Int_t iMult, Int_t iZvtx) const | |
236 | { | |
237 | if (iMult < 0 || iMult >= fNMultBins) | |
238 | return 0x0; | |
239 | if (iZvtx < 0 || iZvtx >= fNZvtxBins) | |
240 | return 0x0; | |
241 | return fEvPool.at(iMult).at(iZvtx); | |
242 | } | |
243 | ||
244 | AliEventPool *AliEventPoolManager::GetEventPool(Int_t centVal, Double_t zVtxVal) const | |
245 | { | |
246 | return GetEventPool((Double_t)centVal, zVtxVal); | |
247 | } | |
248 | ||
249 | AliEventPool *AliEventPoolManager::GetEventPool(Double_t centVal, Double_t zVtxVal) const | |
250 | { | |
251 | // Return appropriate pool for this centrality and z-vertex value. | |
252 | ||
253 | for (Int_t iM=0; iM<fNMultBins; iM++) { | |
254 | for (Int_t iZ=0; iZ<fNZvtxBins; iZ++) { | |
255 | AliEventPool* pool = GetEventPool(iM, iZ); | |
256 | if (pool->EventMatchesBin(centVal, zVtxVal)) | |
257 | return pool; | |
258 | } | |
259 | } | |
260 | return 0x0; | |
261 | } | |
262 | ||
263 | Int_t AliEventPoolManager::UpdatePools(TObjArray *trk) | |
264 | { | |
265 | // Call UpdatePool for all bins. | |
266 | ||
267 | for (Int_t iM=0; iM<fNMultBins; iM++) { | |
268 | for (Int_t iZ=0; iZ<fNZvtxBins; iZ++) { | |
269 | if (fEvPool.at(iM).at(iZ)->UpdatePool(trk) > -1) | |
270 | break; | |
271 | } | |
272 | } | |
273 | return 0; | |
274 | } |