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1 | /************************************************************************** | |
2 | * This file is property of and copyright by the ALICE HLT Project * | |
3 | * All rights reserved. * | |
4 | * * | |
5 | * Primary Authors: * | |
6 | * Artur Szostak <artursz@iafrica.com> * | |
7 | * * | |
8 | * Permission to use, copy, modify and distribute this software and its * | |
9 | * documentation strictly for non-commercial purposes is hereby granted * | |
10 | * without fee, provided that the above copyright notice appears in all * | |
11 | * copies and that both the copyright notice and this permission notice * | |
12 | * appear in the supporting documentation. The authors make no claims * | |
13 | * about the suitability of this software for any purpose. It is * | |
14 | * provided "as is" without express or implied warranty. * | |
15 | **************************************************************************/ | |
16 | ||
17 | /// \ingroup macros | |
18 | /// \file MUONTimeRawStreamTracker.C | |
19 | /// \brief Macro for checking the timing (speed) performance of the tracker decoder. | |
20 | /// | |
21 | /// \author Artur Szostak <artursz@iafrica.com> | |
22 | /// | |
23 | /// This macro is used to check the timing (speed) performance of the | |
24 | /// decoder for the tracker DDLs. It can be invoked as follows: | |
25 | /// | |
26 | /// $ aliroot | |
27 | /// .L $ALICE_ROOT/MUON/MUONTimeRawStreamTracker.C+ | |
28 | /// MUONTimeRawStreamTracker(filename, maxEvent); | |
29 | /// | |
30 | /// where \em filename is the name of a file containing the raw data, or alternatively | |
31 | /// the directory containing rawX (X being an integer) paths with the raw DDL | |
32 | /// data. The \em maxEvent value is the maximum event to process (default set to | |
33 | /// 1000). Thus the macro will time the algorithm for all events in the range | |
34 | /// [0 .. maxEvent-1]. | |
35 | /// | |
36 | ||
37 | #if !defined(__CINT__) || defined(__MAKECINT__) | |
38 | ||
39 | #include "AliCodeTimer.h" | |
40 | ||
41 | // MUON includes | |
42 | #include "AliMUONRawStreamTrackerHP.h" | |
43 | #include "AliMUONDspHeader.h" | |
44 | #include "AliMUONBlockHeader.h" | |
45 | #include "AliMUONBusStruct.h" | |
46 | #include "AliMUONDDLTracker.h" | |
47 | ||
48 | // RAW includes | |
49 | #include "AliRawReader.h" | |
50 | #include "AliRawReaderMemory.h" | |
51 | #include "AliRawDataHeader.h" | |
52 | ||
53 | #include "TStopwatch.h" | |
54 | #include "TMath.h" | |
55 | #include "Riostream.h" | |
56 | ||
57 | #endif | |
58 | ||
59 | ||
60 | // Linked list node for buffer structures. | |
61 | struct AliBufferInfo | |
62 | { | |
63 | AliBufferInfo* fNext; | |
64 | Int_t fEquipId; | |
65 | UInt_t fBufferSize; | |
66 | UChar_t* fBuffer; | |
67 | }; | |
68 | ||
69 | ||
70 | // Digit information to store | |
71 | struct AliDigitInfo | |
72 | { | |
73 | UShort_t fManuId; | |
74 | UShort_t fAdc; | |
75 | UChar_t fChannelId; | |
76 | }; | |
77 | ||
78 | ||
79 | UInt_t LoadFiles(AliBufferInfo*& list, TString fileName = "./", Int_t maxEvent = 1000) | |
80 | { | |
81 | /// Reads in the DDL files into memory buffers as a linked list. | |
82 | ||
83 | AliRawReader* rawReader = AliRawReader::Create(fileName.Data()); | |
84 | ||
85 | if (rawReader == NULL) | |
86 | { | |
87 | cerr << "ERROR: Could not create AliRawReader." << endl; | |
88 | delete rawReader; | |
89 | return 0; | |
90 | } | |
91 | ||
92 | UInt_t count = 0; | |
93 | Int_t iEvent = 0; | |
94 | list = NULL; | |
95 | while (rawReader->NextEvent()) | |
96 | { | |
97 | if (iEvent++ >= maxEvent) break; | |
98 | ||
99 | rawReader->Select("MUONTRK", 0, 19); | |
100 | while (rawReader->ReadHeader()) | |
101 | { | |
102 | AliBufferInfo* info = new AliBufferInfo; | |
103 | if (info == NULL) | |
104 | { | |
105 | cerr << "ERROR: Out of memory, sorry. You should limit the number of events read in." << endl; | |
106 | delete rawReader; | |
107 | return count; | |
108 | } | |
109 | info->fNext = list; | |
110 | info->fEquipId = rawReader->GetEquipmentId(); | |
111 | info->fBufferSize = rawReader->GetDataSize() + sizeof(AliRawDataHeader); | |
112 | info->fBuffer = new UChar_t[info->fBufferSize]; | |
113 | if (info->fBuffer == NULL) | |
114 | { | |
115 | cerr << "ERROR: Out of memory, sorry. You should limit the number of events read in." << endl; | |
116 | delete rawReader; | |
117 | return count; | |
118 | } | |
119 | list = info; | |
120 | ||
121 | // Copy the header. | |
122 | memcpy(info->fBuffer, rawReader->GetDataHeader(), sizeof(AliRawDataHeader)); | |
123 | ||
124 | // Now copy the payload. | |
125 | if (! rawReader->ReadNext( | |
126 | info->fBuffer + sizeof(AliRawDataHeader), | |
127 | info->fBufferSize - sizeof(AliRawDataHeader) | |
128 | ) | |
129 | ) | |
130 | { | |
131 | cerr << "ERROR: Failed to read from AliRawReader." << endl; | |
132 | } | |
133 | count++; | |
134 | } | |
135 | } | |
136 | ||
137 | delete rawReader; | |
138 | return count; | |
139 | } | |
140 | ||
141 | ||
142 | UInt_t CountMaxDigits(AliBufferInfo* list) | |
143 | { | |
144 | /// Counts the maximum number of digits possible in all the buffers. | |
145 | ||
146 | UInt_t total = 0; | |
147 | AliBufferInfo* current = list; | |
148 | while (current != NULL) | |
149 | { | |
150 | total += current->fBufferSize; | |
151 | current = current->fNext; | |
152 | } | |
153 | return total; | |
154 | } | |
155 | ||
156 | ||
157 | void ReleaseBuffers(AliBufferInfo* list) | |
158 | { | |
159 | /// Deletes the memory allocated for the linked list of buffers. | |
160 | ||
161 | AliBufferInfo* current = list; | |
162 | while (current != NULL) | |
163 | { | |
164 | AliBufferInfo* tmp = current; | |
165 | current = current->fNext; | |
166 | delete [] tmp->fBuffer; | |
167 | delete tmp; | |
168 | } | |
169 | } | |
170 | ||
171 | ||
172 | Double_t TimeDecoderBusPatchIteration(AliBufferInfo* list, AliDigitInfo* buffer, UInt_t maxBufferSize) | |
173 | { | |
174 | /// Perform a timing using the new decoder using the "next bus patch" iteration | |
175 | ||
176 | AliRawReaderMemory rawReader; | |
177 | AliMUONRawStreamTrackerHP rawStream(&rawReader); | |
178 | rawReader.NextEvent(); | |
179 | ||
180 | TStopwatch timer; | |
181 | timer.Start(kTRUE); | |
182 | ||
183 | UInt_t i = 0; | |
184 | AliBufferInfo* current = list; | |
185 | while (current != NULL) | |
186 | { | |
187 | rawReader.SetMemory(current->fBuffer, current->fBufferSize); | |
188 | rawReader.SetEquipmentID(current->fEquipId); | |
189 | rawReader.Reset(); | |
190 | ||
191 | UShort_t manuId, adc; | |
192 | UChar_t manuChannel; | |
193 | ||
194 | rawStream.First(); | |
195 | ||
196 | const AliMUONRawStreamTrackerHP::AliBusPatch* buspatch = NULL; | |
197 | while ((buspatch = rawStream.Next()) != NULL) | |
198 | { | |
199 | for (UInt_t j = 0; j < buspatch->GetDataCount(); j++) | |
200 | { | |
201 | buspatch->GetData(j, manuId, manuChannel, adc); | |
202 | if (i < maxBufferSize) | |
203 | { | |
204 | buffer[i].fManuId = manuId; | |
205 | buffer[i].fAdc = adc; | |
206 | buffer[i].fChannelId = manuChannel; | |
207 | i++; | |
208 | } | |
209 | } | |
210 | } | |
211 | ||
212 | current = current->fNext; | |
213 | } | |
214 | ||
215 | return timer.RealTime(); | |
216 | } | |
217 | ||
218 | ||
219 | Double_t TimeDecoderChannelIteration(AliBufferInfo* list, AliDigitInfo* buffer, UInt_t maxBufferSize, Bool_t skipParityErrors) | |
220 | { | |
221 | /// Perform a timing using the "next channel" iteration | |
222 | ||
223 | AliRawReaderMemory rawReader; | |
224 | AliMUONRawStreamTrackerHP rawStream(&rawReader); | |
225 | rawReader.NextEvent(); | |
226 | ||
227 | TStopwatch timer; | |
228 | timer.Start(kTRUE); | |
229 | ||
230 | UInt_t i = 0; | |
231 | AliBufferInfo* current = list; | |
232 | while (current != NULL) | |
233 | { | |
234 | rawReader.SetMemory(current->fBuffer, current->fBufferSize); | |
235 | rawReader.SetEquipmentID(current->fEquipId); | |
236 | rawReader.Reset(); | |
237 | ||
238 | Int_t busPatch; | |
239 | UShort_t manuId, adc; | |
240 | UChar_t manuChannel; | |
241 | ||
242 | rawStream.First(); | |
243 | ||
244 | while ( rawStream.Next(busPatch,manuId,manuChannel,adc,skipParityErrors) ) | |
245 | { | |
246 | if (i < maxBufferSize) | |
247 | { | |
248 | buffer[i].fManuId = manuId; | |
249 | buffer[i].fAdc = adc; | |
250 | buffer[i].fChannelId = manuChannel; | |
251 | i++; | |
252 | } | |
253 | } | |
254 | ||
255 | current = current->fNext; | |
256 | } | |
257 | ||
258 | return timer.RealTime(); | |
259 | } | |
260 | ||
261 | void MUONTimeRawStreamTrackerDumb(TString fileName) | |
262 | { | |
263 | AliCodeTimer::Instance()->Reset(); | |
264 | ||
265 | // first check we can open the stream | |
266 | AliRawReader* reader = AliRawReader::Create(fileName.Data()); | |
267 | if (!reader) | |
268 | { | |
269 | cerr << "Cannot create reader from " << fileName.Data() << endl; | |
270 | return; | |
271 | } | |
272 | ||
273 | AliMUONRawStreamTrackerHP stream(reader); | |
274 | ||
275 | Int_t busPatch; | |
276 | UShort_t manuId, adc; | |
277 | UChar_t manuChannel; | |
278 | ||
279 | while ( reader->NextEvent() ) | |
280 | { | |
281 | stream.First(); | |
282 | ||
283 | while ( stream.Next(busPatch,manuId,manuChannel,adc) ) | |
284 | { | |
285 | adc *= 2; | |
286 | } | |
287 | } | |
288 | ||
289 | AliCodeTimer::Instance()->Print(); | |
290 | } | |
291 | ||
292 | ||
293 | void MUONTimeRawStreamTracker(TString fileName = "./", Int_t maxEvent = 1000) | |
294 | { | |
295 | /// Performs a timing of decoder | |
296 | ||
297 | AliBufferInfo* list = NULL; | |
298 | UInt_t bufferCount = LoadFiles(list, fileName, maxEvent); | |
299 | if (bufferCount == 0) | |
300 | { | |
301 | cerr << "ERROR: No DDL files found or read in." << endl; | |
302 | return; | |
303 | } | |
304 | ||
305 | UInt_t maxBufferSize = CountMaxDigits(list); | |
306 | AliDigitInfo* buffer = new AliDigitInfo[maxBufferSize]; | |
307 | if (buffer == NULL) | |
308 | { | |
309 | ReleaseBuffers(list); | |
310 | cerr << "ERROR: Out of memory, sorry. You should limit the number of events read in." << endl; | |
311 | return; | |
312 | } | |
313 | Double_t bpTimes[100]; | |
314 | for (Int_t i = 0; i < 100; i++) | |
315 | { | |
316 | cout << "Timing decoder: bus patch iteration " << i+1 << " of 100" << endl; | |
317 | bpTimes[i] = TimeDecoderBusPatchIteration(list, buffer, maxBufferSize); | |
318 | } | |
319 | Double_t channelTimes[100]; | |
320 | for (Int_t i = 0; i < 100; i++) | |
321 | { | |
322 | cout << "Timing decoder: channel iteration w/ parity check" << i+1 << " of 100" << endl; | |
323 | channelTimes[i] = TimeDecoderChannelIteration(list, buffer, maxBufferSize,kTRUE); | |
324 | } | |
325 | Double_t channelTimes2[100]; | |
326 | for (Int_t i = 0; i < 100; i++) | |
327 | { | |
328 | cout << "Timing decoder: channel iteration w/o parity check" << i+1 << " of 100" << endl; | |
329 | channelTimes2[i] = TimeDecoderChannelIteration(list, buffer, maxBufferSize,kFALSE); | |
330 | } | |
331 | ||
332 | ReleaseBuffers(list); | |
333 | delete buffer; | |
334 | ||
335 | Double_t bpTime = TMath::Mean(100, bpTimes) / Double_t(bufferCount); | |
336 | Double_t bpTimeErr = TMath::RMS(100, bpTimes) / Double_t(bufferCount); | |
337 | Double_t channelTime = TMath::Mean(100, channelTimes) / Double_t(bufferCount); | |
338 | Double_t channelTimeErr = TMath::RMS(100, channelTimes) / Double_t(bufferCount); | |
339 | Double_t channelTime2 = TMath::Mean(100, channelTimes2) / Double_t(bufferCount); | |
340 | Double_t channelTime2Err = TMath::RMS(100, channelTimes2) / Double_t(bufferCount); | |
341 | ||
342 | cout << "Average processing time per DDL for:" << endl; | |
343 | cout << " bus patch iteration = " << bpTime*1e6 << " +/- " << bpTimeErr*1e6/TMath::Sqrt(100) << " micro seconds" << endl; | |
344 | cout << " channel iteration with parity check = " << channelTime*1e6 << " +/- " << channelTimeErr*1e6/TMath::Sqrt(100) << " micro seconds" << endl; | |
345 | cout << " channel iteration without parity check = " << channelTime2*1e6 << " +/- " << channelTime2Err*1e6/TMath::Sqrt(100) << " micro seconds" << endl; | |
346 | } | |
347 |