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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. | |
c05ff6be | 79 | // |
80 | // the ownership of <trk> is delegated to this class | |
2a910c25 | 81 | |
82 | static Int_t iEvent = -1; | |
83 | iEvent++; | |
84 | ||
85 | Int_t mult = trk->GetEntries(); | |
fa67180e | 86 | Int_t nTrk = NTracksInPool(); |
2a910c25 | 87 | |
fa67180e | 88 | if (nTrk < fTargetTrackDepth && ((nTrk + mult) >= fTargetTrackDepth)) |
2a910c25 | 89 | fNTimes++; |
fa67180e | 90 | |
2a910c25 | 91 | // remove 0th element before appending this event |
fa67180e | 92 | Bool_t removeFirstEvent = 0; |
93 | if (nTrk>fTargetTrackDepth) { | |
94 | Int_t nTrksFirstEvent= fNTracksInEvent.front(); | |
95 | Int_t diff = nTrk - nTrksFirstEvent + mult; | |
96 | if (diff>fTargetTrackDepth) | |
97 | removeFirstEvent = 1; | |
98 | } | |
99 | if (removeFirstEvent) { | |
2a910c25 | 100 | TObjArray *fa = fEvents.front(); |
101 | delete fa; | |
102 | fEvents.pop_front(); // remove first track array | |
103 | fNTracksInEvent.pop_front(); // remove first int | |
104 | fEventIndex.pop_front(); | |
2a910c25 | 105 | } |
106 | ||
107 | fNTracksInEvent.push_back(mult); | |
108 | fEvents.push_back(trk); | |
109 | fEventIndex.push_back(iEvent); | |
2a910c25 | 110 | |
111 | if (fNTimes==1) { | |
fa67180e | 112 | fFirstFilled = kTRUE; |
db48ae1a | 113 | if (AliEventPool::fDebug) { |
d94cc49b | 114 | cout << "\nPool " << MultBinIndex() << ", " << ZvtxBinIndex() |
115 | << " ready at event "<< iEvent; | |
116 | PrintInfo(); | |
117 | cout << endl; | |
118 | } | |
2a910c25 | 119 | fNTimes++; // See this message exactly once/pool |
fa67180e | 120 | } else { |
121 | fFirstFilled = kFALSE; | |
2a910c25 | 122 | } |
123 | ||
124 | fWasUpdated = true; | |
125 | ||
126 | if (AliEventPool::fDebug) { | |
127 | cout << " Event " << fEventIndex.back(); | |
128 | cout << " PoolDepth = " << GetCurrentNEvents(); | |
129 | cout << " NTracksInCurrentEvent = " << NTracksInCurrentEvent(); | |
130 | } | |
131 | ||
132 | return fEvents.size(); | |
133 | } | |
134 | ||
135 | TObject* AliEventPool::GetRandomTrack() const | |
136 | { | |
137 | // Get any random track from the pool, sampled with uniform probability. | |
138 | ||
139 | UInt_t ranEvt = gRandom->Integer(fEvents.size()); | |
140 | TObjArray *tca = fEvents.at(ranEvt); | |
141 | UInt_t ranTrk = gRandom->Integer(tca->GetEntries()); | |
142 | TObject *trk = (TObject*)tca->At(ranTrk); | |
143 | return trk; | |
144 | } | |
145 | ||
146 | TObjArray* AliEventPool::GetEvent(Int_t i) const | |
147 | { | |
148 | if (i<0 || i>=(Int_t)fEvents.size()) { | |
149 | cout << "AliEventPool::GetEvent(" | |
150 | << i << "): Invalid index" << endl; | |
151 | return 0x0; | |
152 | } | |
153 | ||
154 | TObjArray *tca = fEvents.at(i); | |
155 | return tca; | |
156 | } | |
157 | ||
158 | TObjArray* AliEventPool::GetRandomEvent() const | |
159 | { | |
160 | UInt_t ranEvt = gRandom->Integer(fEvents.size()); | |
161 | TObjArray *tca = fEvents.at(ranEvt); | |
162 | return tca; | |
163 | } | |
164 | ||
165 | Int_t AliEventPool::NTracksInEvent(Int_t iEvent) const | |
166 | { | |
167 | // Return number of tracks in iEvent, which is the local pool index. | |
168 | ||
169 | Int_t n = -1; | |
170 | Int_t curEvent = fEventIndex.back(); | |
171 | Int_t offset = curEvent - iEvent; | |
172 | Int_t pos = fEventIndex.size() - offset - 1; | |
173 | ||
174 | if (offset==0) | |
175 | n = fNTracksInEvent.back(); | |
176 | else if (offset < 0 || iEvent < 0) { | |
177 | n = 0; | |
178 | } | |
179 | else if (offset > 0 && offset <= (int)fEventIndex.size()) { | |
180 | n = fNTracksInEvent.at(pos); | |
181 | } | |
182 | else | |
183 | cout << "Event info no longer in memory" << endl; | |
184 | return n; | |
185 | } | |
186 | ||
187 | ClassImp(AliEventPoolManager) | |
188 | ||
189 | AliEventPoolManager::AliEventPoolManager(Int_t depth, Int_t minNTracks, | |
190 | Int_t nMultBins, Double_t *multbins, | |
191 | Int_t nZvtxBins, Double_t *zvtxbins) : | |
192 | fDebug(0), fNMultBins(0), fNZvtxBins(0), fEvPool(0), fTargetTrackDepth(minNTracks) | |
193 | { | |
194 | // Constructor. | |
195 | ||
196 | InitEventPools(depth, nMultBins, multbins, nZvtxBins, zvtxbins); | |
197 | cout << "AliEventPoolManager initialized." << endl; | |
198 | } | |
199 | ||
200 | Int_t AliEventPoolManager::InitEventPools(Int_t depth, | |
201 | Int_t nMultBins, Double_t *multbin, | |
202 | Int_t nZvtxBins, Double_t *zvtxbin) | |
203 | { | |
204 | // Assign AliEventPoolManager members. | |
205 | ||
206 | fNMultBins = nMultBins; | |
207 | fNZvtxBins = nZvtxBins; | |
208 | ||
209 | for (Int_t iM=0; iM<nMultBins; iM++) { | |
210 | std::vector<AliEventPool*> evp; | |
211 | for (Int_t iZ=0; iZ<nZvtxBins; iZ++) { | |
212 | evp.push_back(new AliEventPool(depth, | |
213 | multbin[iM], multbin[iM+1], | |
214 | zvtxbin[iZ], zvtxbin[iZ+1] )); | |
215 | } | |
216 | fEvPool.push_back(evp); | |
217 | } | |
218 | ||
219 | for (Int_t iM=0; iM<nMultBins; iM++) { | |
220 | for (Int_t iZ=0; iZ<nZvtxBins; iZ++) { | |
221 | fEvPool.at(iM).at(iZ)->SetMultBinIndex(iM); | |
222 | fEvPool.at(iM).at(iZ)->SetZvtxBinIndex(iZ); | |
223 | fEvPool.at(iM).at(iZ)->SetTargetTrackDepth(fTargetTrackDepth); | |
224 | } | |
225 | } | |
226 | ||
227 | if (0) { | |
228 | cout << "fEvPool outer size: " << fEvPool.size() << endl; | |
229 | for (Int_t iM=0; iM<nMultBins; iM++) { | |
230 | for (Int_t iZ=0; iZ<nZvtxBins; iZ++) { | |
231 | if(fEvPool.at(iM).at(iZ)) { | |
232 | cout << "multiplicity bin: " << iM; | |
233 | cout << ", z-vertex bin: " << iZ; | |
234 | fEvPool.at(iM).at(iZ)->PrintInfo(); | |
235 | } | |
236 | } | |
237 | } | |
238 | } | |
239 | ||
240 | return fEvPool.size(); | |
241 | } | |
242 | ||
243 | AliEventPool *AliEventPoolManager::GetEventPool(Int_t iMult, Int_t iZvtx) const | |
244 | { | |
245 | if (iMult < 0 || iMult >= fNMultBins) | |
246 | return 0x0; | |
247 | if (iZvtx < 0 || iZvtx >= fNZvtxBins) | |
248 | return 0x0; | |
249 | return fEvPool.at(iMult).at(iZvtx); | |
250 | } | |
251 | ||
252 | AliEventPool *AliEventPoolManager::GetEventPool(Int_t centVal, Double_t zVtxVal) const | |
253 | { | |
254 | return GetEventPool((Double_t)centVal, zVtxVal); | |
255 | } | |
256 | ||
257 | AliEventPool *AliEventPoolManager::GetEventPool(Double_t centVal, Double_t zVtxVal) const | |
258 | { | |
259 | // Return appropriate pool for this centrality and z-vertex value. | |
260 | ||
261 | for (Int_t iM=0; iM<fNMultBins; iM++) { | |
262 | for (Int_t iZ=0; iZ<fNZvtxBins; iZ++) { | |
263 | AliEventPool* pool = GetEventPool(iM, iZ); | |
264 | if (pool->EventMatchesBin(centVal, zVtxVal)) | |
265 | return pool; | |
266 | } | |
267 | } | |
268 | return 0x0; | |
269 | } | |
270 | ||
271 | Int_t AliEventPoolManager::UpdatePools(TObjArray *trk) | |
272 | { | |
273 | // Call UpdatePool for all bins. | |
274 | ||
275 | for (Int_t iM=0; iM<fNMultBins; iM++) { | |
276 | for (Int_t iZ=0; iZ<fNZvtxBins; iZ++) { | |
277 | if (fEvPool.at(iM).at(iZ)->UpdatePool(trk) > -1) | |
278 | break; | |
279 | } | |
280 | } | |
281 | return 0; | |
282 | } |