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root/OpenMD/trunk/src/io/DumpReader.cpp
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Comparing trunk/src/io/DumpReader.cpp (file contents):
Revision 619 by tim, Wed Sep 21 20:59:31 2005 UTC vs.
Revision 996 by chrisfen, Wed Jun 28 14:35:14 2006 UTC

# Line 1 | Line 1
1 < /*
2 < * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3 < *
4 < * The University of Notre Dame grants you ("Licensee") a
5 < * non-exclusive, royalty free, license to use, modify and
6 < * redistribute this software in source and binary code form, provided
7 < * that the following conditions are met:
8 < *
9 < * 1. Acknowledgement of the program authors must be made in any
10 < *    publication of scientific results based in part on use of the
11 < *    program.  An acceptable form of acknowledgement is citation of
12 < *    the article in which the program was described (Matthew
13 < *    A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
14 < *    J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
15 < *    Parallel Simulation Engine for Molecular Dynamics,"
16 < *    J. Comput. Chem. 26, pp. 252-271 (2005))
17 < *
18 < * 2. Redistributions of source code must retain the above copyright
19 < *    notice, this list of conditions and the following disclaimer.
20 < *
21 < * 3. Redistributions in binary form must reproduce the above copyright
22 < *    notice, this list of conditions and the following disclaimer in the
23 < *    documentation and/or other materials provided with the
24 < *    distribution.
25 < *
26 < * This software is provided "AS IS," without a warranty of any
27 < * kind. All express or implied conditions, representations and
28 < * warranties, including any implied warranty of merchantability,
29 < * fitness for a particular purpose or non-infringement, are hereby
30 < * excluded.  The University of Notre Dame and its licensors shall not
31 < * be liable for any damages suffered by licensee as a result of
32 < * using, modifying or distributing the software or its
33 < * derivatives. In no event will the University of Notre Dame or its
34 < * licensors be liable for any lost revenue, profit or data, or for
35 < * direct, indirect, special, consequential, incidental or punitive
36 < * damages, however caused and regardless of the theory of liability,
37 < * arising out of the use of or inability to use software, even if the
38 < * University of Notre Dame has been advised of the possibility of
39 < * such damages.
40 < */
41 <
42 < #define _LARGEFILE_SOURCE64
43 < #define _FILE_OFFSET_BITS 64
44 <
45 < #include <sys/types.h>
46 < #include <sys/stat.h>
47 <
48 < #include <iostream>
49 < #include <math.h>
50 <
51 < #include <stdio.h>
52 < #include <stdlib.h>
53 < #include <string.h>
54 <
55 < #include "io/DumpReader.hpp"
56 < #include "primitives/Molecule.hpp"
57 < #include "utils/simError.h"
58 < #include "utils/MemoryUtils.hpp"
59 < #include "utils/StringTokenizer.hpp"
60 <
61 < #ifdef IS_MPI
62 <
63 < #include <mpi.h>
64 < #define TAKE_THIS_TAG_CHAR 0
65 < #define TAKE_THIS_TAG_INT 1
66 <
67 < #endif // is_mpi
68 <
69 <
70 < namespace oopse {
71 <  
72 <  DumpReader::DumpReader(SimInfo* info, const std::string& filename)
73 <    : info_(info), filename_(filename), isScanned_(false), nframes_(0) {
74 <    
75 < #ifdef IS_MPI
76 <    
77 <      if (worldRank == 0) {
78 < #endif
79 <      
80 <      inFile_ = new std::ifstream(filename_.c_str());
81 <      
82 <        if (inFile_->fail()) {
83 <          sprintf(painCave.errMsg, "DumpReader: Cannot open file: %s\n", filename_.c_str());
84 <          painCave.isFatal = 1;
85 <          simError();
86 <        }
87 <      
88 < #ifdef IS_MPI
89 <      
90 <      }
91 <    
92 <      strcpy(checkPointMsg, "Dump file opened for reading successfully.");
93 <      MPIcheckPoint();
94 <    
95 < #endif
96 <    
97 <      return;
98 <    }
99 <  
100 <  DumpReader::~DumpReader() {
101 <    
102 < #ifdef IS_MPI
103 <    
104 <    if (worldRank == 0) {
105 < #endif
106 <      
107 <      delete inFile_;
108 <      
109 < #ifdef IS_MPI
110 <      
111 <    }
112 <    
113 <    strcpy(checkPointMsg, "Dump file closed successfully.");
114 <    MPIcheckPoint();
115 <    
116 < #endif
117 <    
118 <    return;
119 <  }
120 <  
121 <  int DumpReader::getNFrames(void) {
122 <    
123 <    if (!isScanned_)
124 <      scanFile();
125 <    
126 <    return nframes_;
127 <  }
128 <  
129 <  void DumpReader::scanFile(void) {
130 <    int i, j;
131 <    int lineNum = 0;
132 <    char readBuffer[maxBufferSize];
133 <    std::streampos  currPos;
134 <    
135 < #ifdef IS_MPI
136 <    
137 <    if (worldRank == 0) {
138 < #endif // is_mpi
139 <      
140 <      inFile_->seekg (0, std::ios::beg);
141 <      
142 <
143 <      currPos = inFile_->tellg();
144 <      inFile_->getline(readBuffer, sizeof(readBuffer));
145 <      lineNum++;
146 <      
147 <      if (inFile_->eof()) {
148 <        sprintf(painCave.errMsg,
149 <                "DumpReader Error: File \"%s\" ended unexpectedly at line %d\n",
150 <                filename_.c_str(),
151 <                lineNum);
152 <        painCave.isFatal = 1;
153 <        simError();
154 <      }
155 <      
156 <      while (!inFile_->eof()) {
157 <        framePos_.push_back(currPos);
158 <        
159 <        i = atoi(readBuffer);
160 <        
161 <        inFile_->getline(readBuffer, sizeof(readBuffer));
162 <        lineNum++;
163 <        
164 <        if (inFile_->eof()) {
165 <          sprintf(painCave.errMsg,
166 <                  "DumpReader Error: File \"%s\" ended unexpectedly at line %d\n",
167 <                  filename_.c_str(),
168 <                  lineNum);
169 <          painCave.isFatal = 1;
170 <          simError();
171 <        }
172 <        
173 <        for(j = 0; j < i; j++) {
174 <          inFile_->getline(readBuffer, sizeof(readBuffer));
175 <          lineNum++;
176 <          
177 <          if (inFile_->eof()) {
178 <            sprintf(painCave.errMsg,
179 <                    "DumpReader Error: File \"%s\" ended unexpectedly at line %d,"
180 <                    " with atom %d\n", filename_.c_str(),
181 <                    lineNum,
182 <                    j);
183 <            
184 <            painCave.isFatal = 1;
185 <            simError();
186 <          }
187 <        }
188 <        
189 <        currPos = inFile_->tellg();
190 <        inFile_->getline(readBuffer, sizeof(readBuffer));
191 <        lineNum++;
192 <      }
193 <
194 <      inFile_->seekg (0, std::ios::beg);
195 <      
196 <      nframes_ = framePos_.size();
197 < #ifdef IS_MPI
198 <    }
199 <    
200 <    MPI_Bcast(&nframes_, 1, MPI_INT, 0, MPI_COMM_WORLD);
201 <    
202 <    strcpy(checkPointMsg, "Successfully scanned DumpFile\n");
203 <    MPIcheckPoint();
204 <    
205 < #endif // is_mpi
206 <    
207 <    isScanned_ = true;
208 <  }
209 <  
210 <  void DumpReader::readFrame(int whichFrame) {
211 <    if (!isScanned_)
212 <      scanFile();
213 <        
214 <    int storageLayout = info_->getSnapshotManager()->getStorageLayout();
215 <    
216 <    if (storageLayout & DataStorage::dslPosition) {
217 <      needPos_ = true;
218 <    } else {
219 <      needPos_ = false;
220 <    }
221 <    
222 <    if (storageLayout & DataStorage::dslVelocity) {
223 <      needVel_ = true;
224 <    } else {
225 <      needVel_ = false;
226 <    }
227 <    
228 <    if (storageLayout & DataStorage::dslAmat || storageLayout & DataStorage::dslElectroFrame) {
229 <      needQuaternion_ = true;
230 <    } else {
231 <      needQuaternion_ = false;
232 <    }
233 <    
234 <    if (storageLayout & DataStorage::dslAngularMomentum) {
235 <      needAngMom_ = true;
236 <    } else {
237 <      needAngMom_ = false;    
238 <    }
239 <    
240 <    readSet(whichFrame);
241 <  }
242 <  
243 <  void DumpReader::readSet(int whichFrame) {
244 <    int i;
245 <    int nTotObjs;                  // the number of atoms
246 <    char read_buffer[maxBufferSize];  //the line buffer for reading
247 <    char * eof_test;               // ptr to see when we reach the end of the file
248 <    
249 <    Molecule* mol;
250 <    StuntDouble* integrableObject;
251 <    SimInfo::MoleculeIterator mi;
252 <    Molecule::IntegrableObjectIterator ii;
253 <    
254 < #ifndef IS_MPI
255 <    inFile_->clear();
256 <    inFile_->seekg(framePos_[whichFrame]);
257 <        
258 <    if (!inFile_->getline(read_buffer, sizeof(read_buffer))) {
259 <      sprintf(painCave.errMsg,
260 <              "DumpReader error: error reading 1st line of \"%s\"\n",
261 <              filename_.c_str());
262 <      painCave.isFatal = 1;
263 <      simError();
264 <    }
265 <    
266 <    nTotObjs = atoi(read_buffer);
267 <    
268 <    if (nTotObjs != info_->getNGlobalIntegrableObjects()) {
269 <      sprintf(painCave.errMsg,
270 <              "DumpReader error. %s nIntegrable, %d, "
271 <              "does not match the meta-data file's nIntegrable, %d.\n",
272 <              filename_.c_str(),
273 <              nTotObjs,
274 <              info_->getNGlobalIntegrableObjects());
275 <      
276 <      painCave.isFatal = 1;
277 <      simError();
278 <    }
279 <    
280 <    //read the box mat from the comment line
281 <    
282 <    
283 <    if (!inFile_->getline(read_buffer, sizeof(read_buffer))) {
284 <      sprintf(painCave.errMsg, "DumpReader Error: error in reading commment in %s\n",
285 <              filename_.c_str());
286 <      painCave.isFatal = 1;
287 <      simError();
288 <    }
289 <    
290 <    parseCommentLine(read_buffer, info_->getSnapshotManager()->getCurrentSnapshot());
291 <    
292 <    //parse dump lines
293 <    
294 <    i = 0;
295 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
296 <      
297 <      for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;
298 <           integrableObject = mol->nextIntegrableObject(ii)) {          
299 <        
300 <        
301 <        
302 <        if (!inFile_->getline(read_buffer, sizeof(read_buffer))) {
303 <          sprintf(painCave.errMsg,
304 <                  "DumpReader Error: error in reading file %s\n"
305 <                  "natoms  = %d; index = %d\n"
306 <                  "error reading the line from the file.\n",
307 <                  filename_.c_str(),
308 <                  nTotObjs,
309 <                  i);
310 <          
311 <          painCave.isFatal = 1;
312 <          simError();
313 <        }
314 <        
315 <        parseDumpLine(read_buffer, integrableObject);
316 <        i++;
317 <      }
318 <    }
319 <    
320 <    // MPI Section of code..........
321 <    
322 < #else //IS_MPI
323 <    
324 <    // first thing first, suspend fatalities.
325 <    int masterNode = 0;
326 <    int nCurObj;
327 <    painCave.isEventLoop = 1;
328 <    
329 <    int myStatus; // 1 = wakeup & success; 0 = error; -1 = AllDone
330 <    int haveError;
331 <    
332 <    MPI_Status istatus;
333 <    int nitems;
334 <    
335 <    nTotObjs = info_->getNGlobalIntegrableObjects();
336 <    haveError = 0;
337 <    
338 <    if (worldRank == masterNode) {
339 <      inFile_->clear();            
340 <      inFile_->seekg(framePos_[whichFrame]);
341 <      
342 <      if (!inFile_->getline(readBuffer, sizeof(readBuffer))) {
343 <        sprintf(painCave.errMsg, "DumpReader Error: Error reading 1st line of %s \n ",
344 <                filename_.c_str());
345 <        painCave.isFatal = 1;
346 <        simError();
347 <      }
348 <      
349 <      nitems = atoi(read_buffer);
350 <      
351 <      // Check to see that the number of integrable objects in the
352 <      // intial configuration file is the same as derived from the
353 <      // meta-data file.
354 <      
355 <      if (nTotObjs != nitems) {
356 <        sprintf(painCave.errMsg,
357 <                "DumpReader Error. %s nIntegrable, %d, "
358 <                "does not match the meta-data file's nIntegrable, %d.\n",
359 <                filename_.c_str(),
360 <                nTotObjs,
361 <                info_->getNGlobalIntegrableObjects());
362 <        
363 <        painCave.isFatal = 1;
364 <        simError();
365 <      }
366 <      
367 <      //read the boxMat from the comment line
368 <      
369 <      
370 <      
371 <      if (!inFile_->getline(readBuffer, sizeof(readBuffer))) {
372 <        sprintf(painCave.errMsg, "DumpReader Error: error in reading commment in %s\n",
373 <                filename_.c_str());
374 <        painCave.isFatal = 1;
375 <        simError();
376 <      }
377 <      
378 <      //Every single processor will parse the comment line by itself
379 <      //By using this way, we might lose some efficiency, but if we want to add
380 <      //more parameters into comment line, we only need to modify function
381 <      //parseCommentLine
382 <      
383 <      MPI_Bcast(read_buffer, maxBufferSize, MPI_CHAR, masterNode, MPI_COMM_WORLD);
384 <      parseCommentLine(read_buffer, info_->getSnapshotManager()->getCurrentSnapshot());
385 <      
386 <      for(i = 0; i < info_->getNGlobalMolecules(); i++) {
387 <        int which_node = info_->getMolToProc(i);
388 <        
389 <        if (which_node == masterNode) {
390 <          //molecules belong to master node
391 <          
392 <          mol = info_->getMoleculeByGlobalIndex(i);
393 <          
394 <          if (mol == NULL) {
395 <            sprintf(painCave.errMsg, "DumpReader Error: Molecule not found on node %d!", worldRank);
396 <            painCave.isFatal = 1;
397 <            simError();
398 <          }
399 <          
400 <          for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;
401 <               integrableObject = mol->nextIntegrableObject(ii)){
402 <            
403 <            
404 <            
405 <            if (!inFile_->getline(readBuffer, sizeof(readBuffer))) {
406 <              sprintf(painCave.errMsg,
407 <                      "DumpReader Error: error in reading file %s\n"
408 <                      "natoms  = %d; index = %d\n"
409 <                      "error reading the line from the file.\n",
410 <                      filename_.c_str(),
411 <                      nTotObjs,
412 <                      i);
413 <              
414 <              painCave.isFatal = 1;
415 <              simError();
416 <            }
417 <            
418 <            parseDumpLine(read_buffer, integrableObject);
419 <          }
420 <        } else {
421 <          //molecule belongs to slave nodes
422 <          
423 <          MPI_Recv(&nCurObj, 1, MPI_INT, which_node, TAKE_THIS_TAG_INT,
424 <                   MPI_COMM_WORLD, &istatus);
425 <          
426 <          for(int j = 0; j < nCurObj; j++) {
427 <            
428 <            
429 <            if (!inFile_->getline(readBuffer, sizeof(readBuffer))) {
430 <              sprintf(painCave.errMsg,
431 <                      "DumpReader Error: error in reading file %s\n"
432 <                      "natoms  = %d; index = %d\n"
433 <                      "error reading the line from the file.\n",
434 <                      filename_.c_str(),
435 <                      nTotObjs,
436 <                      i);
437 <              
438 <              painCave.isFatal = 1;
439 <              simError();
440 <            }
441 <            
442 <            MPI_Send(read_buffer, maxBufferSize, MPI_CHAR, which_node,
443 <                     TAKE_THIS_TAG_CHAR, MPI_COMM_WORLD);
444 <          }
445 <        }
446 <      }
447 <    } else {
448 <      //actions taken at slave nodes
449 <      MPI_Bcast(read_buffer, maxBufferSize, MPI_CHAR, masterNode, MPI_COMM_WORLD);
450 <      
451 <      /**@todo*/
452 <      parseCommentLine(read_buffer, info_->getSnapshotManager()->getCurrentSnapshot());
453 <      
454 <      for(i = 0; i < info_->getNGlobalMolecules(); i++) {
455 <        int which_node = info_->getMolToProc(i);
456 <        
457 <        if (which_node == worldRank) {
458 <          //molecule with global index i belongs to this processor
459 <          
460 <          mol = info_->getMoleculeByGlobalIndex(i);
461 <          if (mol == NULL) {
462 <            sprintf(painCave.errMsg, "DumpReader Error: Molecule not found on node %d!", worldRank);
463 <            painCave.isFatal = 1;
464 <            simError();
465 <          }
466 <          
467 <          nCurObj = mol->getNIntegrableObjects();
468 <          
469 <          MPI_Send(&nCurObj, 1, MPI_INT, masterNode, TAKE_THIS_TAG_INT,
470 <                   MPI_COMM_WORLD);
471 <          
472 <          for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;
473 <               integrableObject = mol->nextIntegrableObject(ii)){
474 <            
475 <            MPI_Recv(read_buffer, maxBufferSize, MPI_CHAR, masterNode,
476 <                     TAKE_THIS_TAG_CHAR, MPI_COMM_WORLD, &istatus);
477 <            
478 <            parseDumpLine(read_buffer, integrableObject);
479 <          }
480 <          
481 <        }
482 <        
483 <      }
484 <      
485 <    }
486 <    
487 < #endif
488 <    
489 <  }
490 <  
491 <  void DumpReader::parseDumpLine(char *line, StuntDouble *integrableObject) {
492 <    
493 <    Vector3d pos;  // position place holders
494 <    Vector3d vel;  // velocity placeholders
495 <    Quat4d q;    // the quaternions
496 <    Vector3d ji;   // angular velocity placeholders;
497 <    StringTokenizer tokenizer(line);
498 <    int nTokens;
499 <    
500 <    nTokens = tokenizer.countTokens();
501 <    
502 <    if (nTokens < 14) {
503 <      sprintf(painCave.errMsg,
504 <              "DumpReader Error: Not enough Tokens.\n%s\n", line);
505 <      painCave.isFatal = 1;
506 <      simError();
507 <    }
508 <    
509 <    std::string name = tokenizer.nextToken();
510 <    
511 <    if (name != integrableObject->getType()) {
512 <      
513 <      sprintf(painCave.errMsg,
514 <              "DumpReader Error: Atom type [%s] in %s does not match Atom Type [%s] in .md file.\n",
515 <              name.c_str(), filename_.c_str(), integrableObject->getType().c_str());
516 <      painCave.isFatal = 1;
517 <      simError();        
518 <    }
519 <    
520 <    pos[0] = tokenizer.nextTokenAsDouble();
521 <    pos[1] = tokenizer.nextTokenAsDouble();
522 <    pos[2] = tokenizer.nextTokenAsDouble();
523 <    if (needPos_) {
524 <      integrableObject->setPos(pos);
525 <    }
526 <    
527 <    vel[0] = tokenizer.nextTokenAsDouble();
528 <    vel[1] = tokenizer.nextTokenAsDouble();
529 <    vel[2] = tokenizer.nextTokenAsDouble();
530 <    if (needVel_) {
531 <      integrableObject->setVel(vel);
532 <    }
533 <    
534 <    if (integrableObject->isDirectional()) {
535 <      
536 <      q[0] = tokenizer.nextTokenAsDouble();
537 <      q[1] = tokenizer.nextTokenAsDouble();
538 <      q[2] = tokenizer.nextTokenAsDouble();
539 <      q[3] = tokenizer.nextTokenAsDouble();
540 <      
541 <      double qlen = q.length();
542 <      if (qlen < oopse::epsilon) { //check quaternion is not equal to 0
543 <        
544 <        sprintf(painCave.errMsg,
545 <                "DumpReader Error: initial quaternion error (q0^2 + q1^2 + q2^2 + q3^2 ~ 0).\n");
546 <        painCave.isFatal = 1;
547 <        simError();
548 <        
549 <      }
550 <      
551 <      q.normalize();
552 <      if (needQuaternion_) {          
553 <        integrableObject->setQ(q);
554 <      }
555 <      
556 <      ji[0] = tokenizer.nextTokenAsDouble();
557 <      ji[1] = tokenizer.nextTokenAsDouble();
558 <      ji[2] = tokenizer.nextTokenAsDouble();
559 <      if (needAngMom_) {
560 <        integrableObject->setJ(ji);
561 <      }
562 <    }
563 <    
564 <  }
565 <  
566 <  
567 <  void DumpReader::parseCommentLine(char* line, Snapshot* s) {
568 <    double currTime;
569 <    Mat3x3d hmat;
570 <    double chi;
571 <    double integralOfChiDt;
572 <    Mat3x3d eta;
573 <    
574 <    StringTokenizer tokenizer(line);
575 <    int nTokens;
576 <    
577 <    nTokens = tokenizer.countTokens();
578 <    
579 <    //comment line should at least contain 10 tokens: current time(1 token) and  h-matrix(9 tokens)
580 <    if (nTokens < 10) {
581 <      sprintf(painCave.errMsg,
582 <              "DumpReader Error: Not enough tokens in comment line: %s", line);
583 <      painCave.isFatal = 1;
584 <      simError();  
585 <    }
586 <    
587 <    //read current time
588 <    currTime = tokenizer.nextTokenAsDouble();
589 <    s->setTime(currTime);
590 <    
591 <    //read h-matrix
592 <    hmat(0, 0) = tokenizer.nextTokenAsDouble();
593 <    hmat(0, 1) = tokenizer.nextTokenAsDouble();
594 <    hmat(0, 2) = tokenizer.nextTokenAsDouble();
595 <    hmat(1, 0) = tokenizer.nextTokenAsDouble();
596 <    hmat(1, 1) = tokenizer.nextTokenAsDouble();
597 <    hmat(1, 2) = tokenizer.nextTokenAsDouble();
598 <    hmat(2, 0) = tokenizer.nextTokenAsDouble();
599 <    hmat(2, 1) = tokenizer.nextTokenAsDouble();
600 <    hmat(2, 2) = tokenizer.nextTokenAsDouble();
601 <    s->setHmat(hmat);
602 <    
603 <    //read chi and integralOfChidt, they should apprear in pair
604 <    if (tokenizer.countTokens() >= 2) {
605 <      chi = tokenizer.nextTokenAsDouble();
606 <      integralOfChiDt = tokenizer.nextTokenAsDouble();            
607 <      
608 <      s->setChi(chi);
609 <      s->setIntegralOfChiDt(integralOfChiDt);
610 <    }
611 <    
612 <    //read eta (eta is 3x3 matrix)
613 <    if (tokenizer.countTokens() >= 9) {
614 <      eta(0, 0) = tokenizer.nextTokenAsDouble();
615 <      eta(0, 1) = tokenizer.nextTokenAsDouble();
616 <      eta(0, 2) = tokenizer.nextTokenAsDouble();
617 <      eta(1, 0) = tokenizer.nextTokenAsDouble();
618 <      eta(1, 1) = tokenizer.nextTokenAsDouble();
619 <      eta(1, 2) = tokenizer.nextTokenAsDouble();
620 <      eta(2, 0) = tokenizer.nextTokenAsDouble();
621 <      eta(2, 1) = tokenizer.nextTokenAsDouble();
622 <      eta(2, 2) = tokenizer.nextTokenAsDouble();      
623 <      
624 <      s->setEta(eta);
625 <    }
626 <    
627 <    
628 <  }
629 <  
630 < }//end namespace oopse
1 > /*
2 > * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3 > *
4 > * The University of Notre Dame grants you ("Licensee") a
5 > * non-exclusive, royalty free, license to use, modify and
6 > * redistribute this software in source and binary code form, provided
7 > * that the following conditions are met:
8 > *
9 > * 1. Acknowledgement of the program authors must be made in any
10 > *    publication of scientific results based in part on use of the
11 > *    program.  An acceptable form of acknowledgement is citation of
12 > *    the article in which the program was described (Matthew
13 > *    A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
14 > *    J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
15 > *    Parallel Simulation Engine for Molecular Dynamics,"
16 > *    J. Comput. Chem. 26, pp. 252-271 (2005))
17 > *
18 > * 2. Redistributions of source code must retain the above copyright
19 > *    notice, this list of conditions and the following disclaimer.
20 > *
21 > * 3. Redistributions in binary form must reproduce the above copyright
22 > *    notice, this list of conditions and the following disclaimer in the
23 > *    documentation and/or other materials provided with the
24 > *    distribution.
25 > *
26 > * This software is provided "AS IS," without a warranty of any
27 > * kind. All express or implied conditions, representations and
28 > * warranties, including any implied warranty of merchantability,
29 > * fitness for a particular purpose or non-infringement, are hereby
30 > * excluded.  The University of Notre Dame and its licensors shall not
31 > * be liable for any damages suffered by licensee as a result of
32 > * using, modifying or distributing the software or its
33 > * derivatives. In no event will the University of Notre Dame or its
34 > * licensors be liable for any lost revenue, profit or data, or for
35 > * direct, indirect, special, consequential, incidental or punitive
36 > * damages, however caused and regardless of the theory of liability,
37 > * arising out of the use of or inability to use software, even if the
38 > * University of Notre Dame has been advised of the possibility of
39 > * such damages.
40 > */
41 >  
42 > #define _LARGEFILE_SOURCE64
43 > #define _FILE_OFFSET_BITS 64
44 >
45 > #include <sys/types.h>
46 > #include <sys/stat.h>
47 >
48 > #include <iostream>
49 > #include <math.h>
50 >
51 > #include <stdio.h>
52 > #include <stdlib.h>
53 > #include <string.h>
54 >
55 > #include "io/DumpReader.hpp"
56 > #include "primitives/Molecule.hpp"
57 > #include "utils/simError.h"
58 > #include "utils/MemoryUtils.hpp"
59 > #include "utils/StringTokenizer.hpp"
60 >
61 > #ifdef IS_MPI
62 >
63 > #include <mpi.h>
64 > #define TAKE_THIS_TAG_CHAR 0
65 > #define TAKE_THIS_TAG_INT 1
66 >
67 > #endif // is_mpi
68 >
69 >
70 > namespace oopse {
71 >  
72 >  DumpReader::DumpReader(SimInfo* info, const std::string& filename)
73 >    : info_(info), filename_(filename), isScanned_(false), nframes_(0) {
74 >    
75 > #ifdef IS_MPI
76 >    
77 >    if (worldRank == 0) {
78 > #endif
79 >      
80 >      inFile_ = new std::ifstream(filename_.c_str());
81 >      
82 >      if (inFile_->fail()) {
83 >        sprintf(painCave.errMsg,
84 >                "DumpReader: Cannot open file: %s\n",
85 >                filename_.c_str());
86 >        painCave.isFatal = 1;
87 >        simError();
88 >      }
89 >      
90 > #ifdef IS_MPI
91 >      
92 >    }
93 >    
94 >    strcpy(checkPointMsg, "Dump file opened for reading successfully.");
95 >    MPIcheckPoint();
96 >    
97 > #endif
98 >    
99 >    return;
100 >  }
101 >  
102 >  DumpReader::~DumpReader() {
103 >    
104 > #ifdef IS_MPI
105 >    
106 >    if (worldRank == 0) {
107 > #endif
108 >      
109 >      delete inFile_;
110 >      
111 > #ifdef IS_MPI
112 >      
113 >    }
114 >    
115 >    strcpy(checkPointMsg, "Dump file closed successfully.");
116 >    MPIcheckPoint();
117 >    
118 > #endif
119 >    
120 >    return;
121 >  }
122 >  
123 >  int DumpReader::getNFrames(void) {
124 >    
125 >    if (!isScanned_)
126 >      scanFile();
127 >    
128 >    return nframes_;
129 >  }
130 >  
131 >  void DumpReader::scanFile(void) {
132 >    int i, j;
133 >    int lineNum = 0;
134 >    char readBuffer[maxBufferSize];
135 >    std::streampos  currPos;
136 >    
137 > #ifdef IS_MPI
138 >    
139 >    if (worldRank == 0) {
140 > #endif // is_mpi
141 >      
142 >      inFile_->seekg (0, std::ios::beg);
143 >      
144 >
145 >      currPos = inFile_->tellg();
146 >      inFile_->getline(readBuffer, sizeof(readBuffer));
147 >      lineNum++;
148 >      
149 >      if (inFile_->eof()) {
150 >        sprintf(painCave.errMsg,
151 >                "DumpReader Error: File \"%s\" ended unexpectedly at line %d\n",
152 >                filename_.c_str(),
153 >                lineNum);
154 >        painCave.isFatal = 1;
155 >        simError();
156 >      }
157 >      
158 >      while (!inFile_->eof()) {
159 >        framePos_.push_back(currPos);
160 >        
161 >        i = atoi(readBuffer);
162 >        
163 >        inFile_->getline(readBuffer, sizeof(readBuffer));
164 >        lineNum++;
165 >        
166 >        if (inFile_->eof()) {
167 >          sprintf(painCave.errMsg,
168 >                  "DumpReader Error: File \"%s\" ended unexpectedly at line %d\n",
169 >                  filename_.c_str(),
170 >                  lineNum);
171 >          painCave.isFatal = 1;
172 >          simError();
173 >        }
174 >        
175 >        for(j = 0; j < i; j++) {
176 >          inFile_->getline(readBuffer, sizeof(readBuffer));
177 >          lineNum++;
178 >          
179 >          if (inFile_->eof()) {
180 >            sprintf(painCave.errMsg,
181 >                    "DumpReader Error: File \"%s\" ended unexpectedly at line %d,"
182 >                    " with atom %d\n", filename_.c_str(),
183 >                    lineNum,
184 >                    j);
185 >            
186 >            painCave.isFatal = 1;
187 >            simError();
188 >          }
189 >        }
190 >        
191 >        currPos = inFile_->tellg();
192 >        inFile_->getline(readBuffer, sizeof(readBuffer));
193 >        lineNum++;
194 >      }
195 >
196 >      inFile_->seekg (0, std::ios::beg);
197 >      
198 >      nframes_ = framePos_.size();
199 > #ifdef IS_MPI
200 >    }
201 >    
202 >    MPI_Bcast(&nframes_, 1, MPI_INT, 0, MPI_COMM_WORLD);
203 >    
204 >    strcpy(checkPointMsg, "Successfully scanned DumpFile\n");
205 >    MPIcheckPoint();
206 >    
207 > #endif // is_mpi
208 >    
209 >    isScanned_ = true;
210 >  }
211 >  
212 >  void DumpReader::readFrame(int whichFrame) {
213 >    if (!isScanned_)
214 >      scanFile();
215 >        
216 >    int storageLayout = info_->getSnapshotManager()->getStorageLayout();
217 >    
218 >    if (storageLayout & DataStorage::dslPosition) {
219 >      needPos_ = true;
220 >    } else {
221 >      needPos_ = false;
222 >    }
223 >    
224 >    if (storageLayout & DataStorage::dslVelocity) {
225 >      needVel_ = true;
226 >    } else {
227 >      needVel_ = false;
228 >    }
229 >    
230 >    if (storageLayout & DataStorage::dslAmat || storageLayout & DataStorage::dslElectroFrame) {
231 >      needQuaternion_ = true;
232 >    } else {
233 >      needQuaternion_ = false;
234 >    }
235 >    
236 >    if (storageLayout & DataStorage::dslAngularMomentum) {
237 >      needAngMom_ = true;
238 >    } else {
239 >      needAngMom_ = false;    
240 >    }
241 >    
242 >    readSet(whichFrame);
243 >  }
244 >  
245 >  void DumpReader::readSet(int whichFrame) {
246 >    int i;
247 >    int nTotObjs;                  // the number of atoms
248 >    char read_buffer[maxBufferSize];  //the line buffer for reading
249 >    char * eof_test;               // ptr to see when we reach the end of the file
250 >    
251 >    Molecule* mol;
252 >    StuntDouble* integrableObject;
253 >    SimInfo::MoleculeIterator mi;
254 >    Molecule::IntegrableObjectIterator ii;
255 >    
256 > #ifndef IS_MPI
257 >    inFile_->clear();  
258 >    inFile_->seekg(framePos_[whichFrame]);
259 >        
260 >    if (!inFile_->getline(read_buffer, sizeof(read_buffer))) {
261 >      sprintf(painCave.errMsg,
262 >              "DumpReader error: error reading 1st line of \"%s\"\n",
263 >              filename_.c_str());
264 >      painCave.isFatal = 1;
265 >      simError();
266 >    }
267 >    
268 >    nTotObjs = atoi(read_buffer);
269 >    
270 >    if (nTotObjs != info_->getNGlobalIntegrableObjects()) {
271 >      sprintf(painCave.errMsg,
272 >              "DumpReader error. %s nIntegrable, %d, "
273 >              "does not match the meta-data file's nIntegrable, %d.\n",
274 >              filename_.c_str(),
275 >              nTotObjs,
276 >              info_->getNGlobalIntegrableObjects());
277 >      
278 >      painCave.isFatal = 1;
279 >      simError();
280 >    }
281 >    
282 >    //read the box mat from the comment line
283 >    
284 >    
285 >    if (!inFile_->getline(read_buffer, sizeof(read_buffer))) {
286 >      sprintf(painCave.errMsg, "DumpReader Error: error in reading commment in %s\n",
287 >              filename_.c_str());
288 >      painCave.isFatal = 1;
289 >      simError();
290 >    }
291 >    
292 >    parseCommentLine(read_buffer, info_->getSnapshotManager()->getCurrentSnapshot());
293 >    
294 >    //parse dump lines
295 >    
296 >    i = 0;
297 >    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
298 >      
299 >      for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;  
300 >           integrableObject = mol->nextIntegrableObject(ii)) {            
301 >        
302 >        
303 >        
304 >        if (!inFile_->getline(read_buffer, sizeof(read_buffer))) {
305 >          sprintf(painCave.errMsg,
306 >                  "DumpReader Error: error in reading file %s\n"
307 >                  "natoms  = %d; index = %d\n"
308 >                  "error reading the line from the file.\n",
309 >                  filename_.c_str(),
310 >                  nTotObjs,
311 >                  i);
312 >          
313 >          painCave.isFatal = 1;
314 >          simError();
315 >        }
316 >        
317 >        parseDumpLine(read_buffer, integrableObject);
318 >        i++;
319 >      }
320 >    }
321 >    
322 >    // MPI Section of code..........
323 >    
324 > #else //IS_MPI
325 >    
326 >    // first thing first, suspend fatalities.
327 >    int masterNode = 0;
328 >    int nCurObj;
329 >    painCave.isEventLoop = 1;
330 >    
331 >    int myStatus; // 1 = wakeup & success; 0 = error; -1 = AllDone
332 >    int haveError;
333 >    
334 >    MPI_Status istatus;
335 >    int nitems;
336 >    
337 >    nTotObjs = info_->getNGlobalIntegrableObjects();
338 >    haveError = 0;
339 >    
340 >    if (worldRank == masterNode) {
341 >      inFile_->clear();            
342 >      inFile_->seekg(framePos_[whichFrame]);
343 >      
344 >      if (!inFile_->getline(read_buffer, sizeof(read_buffer))) {
345 >        sprintf(painCave.errMsg, "DumpReader Error: Error reading 1st line of %s \n ",
346 >                filename_.c_str());
347 >        painCave.isFatal = 1;
348 >        simError();
349 >      }
350 >      
351 >      nitems = atoi(read_buffer);
352 >      
353 >      // Check to see that the number of integrable objects in the
354 >      // intial configuration file is the same as derived from the
355 >      // meta-data file.
356 >      
357 >      if (nTotObjs != nitems) {
358 >        sprintf(painCave.errMsg,
359 >                "DumpReader Error. %s nIntegrable, %d, "
360 >                "does not match the meta-data file's nIntegrable, %d.\n",
361 >                filename_.c_str(),
362 >                nTotObjs,
363 >                info_->getNGlobalIntegrableObjects());
364 >        
365 >        painCave.isFatal = 1;
366 >        simError();
367 >      }
368 >      
369 >      //read the boxMat from the comment line
370 >      
371 >      
372 >      
373 >      if (!inFile_->getline(read_buffer, sizeof(read_buffer))) {
374 >        sprintf(painCave.errMsg, "DumpReader Error: error in reading commment in %s\n",
375 >                filename_.c_str());
376 >        painCave.isFatal = 1;
377 >        simError();
378 >      }
379 >      
380 >      //Every single processor will parse the comment line by itself
381 >      //By using this way, we might lose some efficiency, but if we want to add
382 >      //more parameters into comment line, we only need to modify function
383 >      //parseCommentLine
384 >      
385 >      MPI_Bcast(read_buffer, maxBufferSize, MPI_CHAR, masterNode, MPI_COMM_WORLD);
386 >      parseCommentLine(read_buffer, info_->getSnapshotManager()->getCurrentSnapshot());
387 >      
388 >      for(i = 0; i < info_->getNGlobalMolecules(); i++) {
389 >        int which_node = info_->getMolToProc(i);
390 >        
391 >        if (which_node == masterNode) {
392 >          //molecules belong to master node
393 >          
394 >          mol = info_->getMoleculeByGlobalIndex(i);
395 >          
396 >          if (mol == NULL) {
397 >            sprintf(painCave.errMsg, "DumpReader Error: Molecule not found on node %d!", worldRank);
398 >            painCave.isFatal = 1;
399 >            simError();
400 >          }
401 >          
402 >          for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;  
403 >               integrableObject = mol->nextIntegrableObject(ii)){
404 >            
405 >            
406 >            
407 >            if (!inFile_->getline(read_buffer, sizeof(read_buffer))) {
408 >              sprintf(painCave.errMsg,
409 >                      "DumpReader Error: error in reading file %s\n"
410 >                      "natoms  = %d; index = %d\n"
411 >                      "error reading the line from the file.\n",
412 >                      filename_.c_str(),
413 >                      nTotObjs,
414 >                      i);
415 >              
416 >              painCave.isFatal = 1;
417 >              simError();
418 >            }
419 >            
420 >            parseDumpLine(read_buffer, integrableObject);
421 >          }
422 >        } else {
423 >          //molecule belongs to slave nodes
424 >          
425 >          MPI_Recv(&nCurObj, 1, MPI_INT, which_node, TAKE_THIS_TAG_INT,
426 >                   MPI_COMM_WORLD, &istatus);
427 >          
428 >          for(int j = 0; j < nCurObj; j++) {
429 >            
430 >            
431 >            if (!inFile_->getline(read_buffer, sizeof(read_buffer))) {
432 >              sprintf(painCave.errMsg,
433 >                      "DumpReader Error: error in reading file %s\n"
434 >                      "natoms  = %d; index = %d\n"
435 >                      "error reading the line from the file.\n",
436 >                      filename_.c_str(),
437 >                      nTotObjs,
438 >                      i);
439 >              
440 >              painCave.isFatal = 1;
441 >              simError();
442 >            }
443 >            
444 >            MPI_Send(read_buffer, maxBufferSize, MPI_CHAR, which_node,
445 >                     TAKE_THIS_TAG_CHAR, MPI_COMM_WORLD);
446 >          }
447 >        }
448 >      }
449 >    } else {
450 >      //actions taken at slave nodes
451 >      MPI_Bcast(read_buffer, maxBufferSize, MPI_CHAR, masterNode, MPI_COMM_WORLD);
452 >      
453 >      /**@todo*/
454 >      parseCommentLine(read_buffer, info_->getSnapshotManager()->getCurrentSnapshot());
455 >      
456 >      for(i = 0; i < info_->getNGlobalMolecules(); i++) {
457 >        int which_node = info_->getMolToProc(i);
458 >        
459 >        if (which_node == worldRank) {
460 >          //molecule with global index i belongs to this processor
461 >          
462 >          mol = info_->getMoleculeByGlobalIndex(i);
463 >          if (mol == NULL) {
464 >            sprintf(painCave.errMsg, "DumpReader Error: Molecule not found on node %d!", worldRank);
465 >            painCave.isFatal = 1;
466 >            simError();
467 >          }
468 >          
469 >          nCurObj = mol->getNIntegrableObjects();
470 >          
471 >          MPI_Send(&nCurObj, 1, MPI_INT, masterNode, TAKE_THIS_TAG_INT,
472 >                   MPI_COMM_WORLD);
473 >          
474 >          for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;  
475 >               integrableObject = mol->nextIntegrableObject(ii)){
476 >            
477 >            MPI_Recv(read_buffer, maxBufferSize, MPI_CHAR, masterNode,
478 >                     TAKE_THIS_TAG_CHAR, MPI_COMM_WORLD, &istatus);
479 >            
480 >            parseDumpLine(read_buffer, integrableObject);
481 >          }
482 >          
483 >        }
484 >        
485 >      }
486 >      
487 >    }
488 >    
489 > #endif
490 >    
491 >  }
492 >  
493 >  void DumpReader::parseDumpLine(char *line, StuntDouble *integrableObject) {
494 >    
495 >    Vector3d pos;  // position place holders
496 >    Vector3d vel;  // velocity placeholders
497 >    Quat4d q;    // the quaternions
498 >    Vector3d ji;   // angular velocity placeholders;
499 >    StringTokenizer tokenizer(line);
500 >    int nTokens;
501 >    
502 >    nTokens = tokenizer.countTokens();
503 >    
504 >    if (nTokens < 14) {
505 >      sprintf(painCave.errMsg,
506 >              "DumpReader Error: Not enough Tokens.\n%s\n", line);
507 >      painCave.isFatal = 1;
508 >      simError();
509 >    }
510 >    
511 >    std::string name = tokenizer.nextToken();
512 >    
513 >    if (name != integrableObject->getType()) {
514 >      
515 >      sprintf(painCave.errMsg,
516 >              "DumpReader Error: Atom type [%s] in %s does not match Atom Type [%s] in .md file.\n",
517 >              name.c_str(), filename_.c_str(), integrableObject->getType().c_str());
518 >      painCave.isFatal = 1;
519 >      simError();        
520 >    }
521 >    
522 >    pos[0] = tokenizer.nextTokenAsDouble();
523 >    pos[1] = tokenizer.nextTokenAsDouble();
524 >    pos[2] = tokenizer.nextTokenAsDouble();
525 >    if (needPos_) {
526 >      integrableObject->setPos(pos);
527 >    }
528 >    
529 >    vel[0] = tokenizer.nextTokenAsDouble();
530 >    vel[1] = tokenizer.nextTokenAsDouble();
531 >    vel[2] = tokenizer.nextTokenAsDouble();
532 >    if (needVel_) {
533 >      integrableObject->setVel(vel);
534 >    }
535 >    
536 >    if (integrableObject->isDirectional()) {
537 >      
538 >      q[0] = tokenizer.nextTokenAsDouble();
539 >      q[1] = tokenizer.nextTokenAsDouble();
540 >      q[2] = tokenizer.nextTokenAsDouble();
541 >      q[3] = tokenizer.nextTokenAsDouble();
542 >      
543 >      RealType qlen = q.length();
544 >      if (qlen < oopse::epsilon) { //check quaternion is not equal to 0
545 >        
546 >        sprintf(painCave.errMsg,
547 >                "DumpReader Error: initial quaternion error (q0^2 + q1^2 + q2^2 + q3^2) ~ 0\n");
548 >        painCave.isFatal = 1;
549 >        simError();
550 >        
551 >      }  
552 >      
553 >      q.normalize();
554 >      if (needQuaternion_) {            
555 >        integrableObject->setQ(q);
556 >      }
557 >      
558 >      ji[0] = tokenizer.nextTokenAsDouble();
559 >      ji[1] = tokenizer.nextTokenAsDouble();
560 >      ji[2] = tokenizer.nextTokenAsDouble();
561 >      if (needAngMom_) {
562 >        integrableObject->setJ(ji);
563 >      }
564 >    }
565 >    
566 >  }
567 >  
568 >  
569 >  void DumpReader::parseCommentLine(char* line, Snapshot* s) {
570 >    RealType currTime;
571 >    Mat3x3d hmat;
572 >    RealType chi;
573 >    RealType integralOfChiDt;
574 >    Mat3x3d eta;
575 >    
576 >    StringTokenizer tokenizer(line);
577 >    int nTokens;
578 >    
579 >    nTokens = tokenizer.countTokens();
580 >    
581 >    //comment line should at least contain 10 tokens: current time(1 token) and  h-matrix(9 tokens)
582 >    if (nTokens < 10) {
583 >      sprintf(painCave.errMsg,
584 >              "DumpReader Error: Not enough tokens in comment line: %s", line);
585 >      painCave.isFatal = 1;
586 >      simError();    
587 >    }
588 >    
589 >    //read current time
590 >    currTime = tokenizer.nextTokenAsDouble();
591 >    s->setTime(currTime);
592 >    
593 >    //read h-matrix
594 >    hmat(0, 0) = tokenizer.nextTokenAsDouble();
595 >    hmat(0, 1) = tokenizer.nextTokenAsDouble();
596 >    hmat(0, 2) = tokenizer.nextTokenAsDouble();
597 >    hmat(1, 0) = tokenizer.nextTokenAsDouble();
598 >    hmat(1, 1) = tokenizer.nextTokenAsDouble();
599 >    hmat(1, 2) = tokenizer.nextTokenAsDouble();
600 >    hmat(2, 0) = tokenizer.nextTokenAsDouble();
601 >    hmat(2, 1) = tokenizer.nextTokenAsDouble();
602 >    hmat(2, 2) = tokenizer.nextTokenAsDouble();
603 >    s->setHmat(hmat);
604 >    
605 >    //read chi and integralOfChidt, they should apprear in pair
606 >    if (tokenizer.countTokens() >= 2) {
607 >      chi = tokenizer.nextTokenAsDouble();
608 >      integralOfChiDt = tokenizer.nextTokenAsDouble();            
609 >      
610 >      s->setChi(chi);
611 >      s->setIntegralOfChiDt(integralOfChiDt);
612 >    }
613 >    
614 >    //read eta (eta is 3x3 matrix)
615 >    if (tokenizer.countTokens() >= 9) {
616 >      eta(0, 0) = tokenizer.nextTokenAsDouble();
617 >      eta(0, 1) = tokenizer.nextTokenAsDouble();
618 >      eta(0, 2) = tokenizer.nextTokenAsDouble();
619 >      eta(1, 0) = tokenizer.nextTokenAsDouble();
620 >      eta(1, 1) = tokenizer.nextTokenAsDouble();
621 >      eta(1, 2) = tokenizer.nextTokenAsDouble();
622 >      eta(2, 0) = tokenizer.nextTokenAsDouble();
623 >      eta(2, 1) = tokenizer.nextTokenAsDouble();
624 >      eta(2, 2) = tokenizer.nextTokenAsDouble();      
625 >      
626 >      s->setEta(eta);
627 >    }
628 >    
629 >    
630 >  }
631 >  
632 > }//end namespace oopse

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