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root/OpenMD/trunk/src/io/DumpReader.cpp
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Comparing trunk/src/io/DumpReader.cpp (file contents):
Revision 274 by tim, Tue Jan 25 21:59:18 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 < */
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 < #define _LARGEFILE_SOURCE64
46 < #define _FILE_OFFSET_BITS 64
47 <
48 < #include <sys/types.h>
49 < #include <sys/stat.h>
50 <
51 < #include <iostream>
52 < #include <math.h>
53 <
54 < #include <stdio.h>
55 < #include <stdlib.h>
56 < #include <string.h>
57 <
58 < #include "io/DumpReader.hpp"
59 < #include "primitives/Molecule.hpp"
60 < #include "utils/simError.h"
61 < #include "utils/MemoryUtils.hpp"
62 < #include "utils/StringTokenizer.hpp"
63 <
64 < #ifdef IS_MPI
65 <
66 < #include <mpi.h>
67 < #define TAKE_THIS_TAG_CHAR 0
68 < #define TAKE_THIS_TAG_INT 1
69 <
70 < #endif // is_mpi
71 <
72 <
73 < 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_ = fopen(filename_.c_str(), "r");
81 <
82 <        if (inFile_ == NULL) {
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 <        int error;
108 <        error = fclose(inFile_);
109 <
110 <        if (error) {
111 <            sprintf(painCave.errMsg, "DumpReader Error: Error closing %s\n", filename_.c_str());
112 <            painCave.isFatal = 1;            
113 <            simError();
114 <        }
115 <
116 <        MemoryUtils::deleteVectorOfPointer(framePos_);
117 <
118 < #ifdef IS_MPI
119 <
120 <    }
121 <
122 <    strcpy(checkPointMsg, "Dump file closed successfully.");
123 <    MPIcheckPoint();
124 <
125 < #endif
126 <
127 <    return;
128 < }
129 <
130 < int DumpReader::getNFrames(void) {
131 <
132 <    if (!isScanned_)
133 <        scanFile();
134 <
135 <    return nframes_;
136 < }
137 <
138 < void DumpReader::scanFile(void) {
139 <  int i, j;
140 <  int lineNum = 0;
141 <  char readBuffer[maxBufferSize];
142 <  fpos_t * currPos;
143 <
144 < #ifdef IS_MPI
145 <
146 <    if (worldRank == 0) {
147 < #endif // is_mpi
148 <
149 <        rewind(inFile_);
150 <
151 <        currPos = new fpos_t;
152 <        fgetpos(inFile_, currPos);
153 <        fgets(readBuffer, sizeof(readBuffer), inFile_);
154 <        lineNum++;
155 <
156 <        if (feof(inFile_)) {
157 <            sprintf(painCave.errMsg,
158 <                    "DumpReader Error: File \"%s\" ended unexpectedly at line %d\n",
159 <                    filename_.c_str(),
160 <                    lineNum);
161 <            painCave.isFatal = 1;
162 <            simError();
163 <        }
164 <
165 <        while (!feof(inFile_)) {
166 <            framePos_.push_back(currPos);
167 <
168 <            i = atoi(readBuffer);
169 <
170 <            fgets(readBuffer, sizeof(readBuffer), inFile_);
171 <            lineNum++;
172 <
173 <            if (feof(inFile_)) {
174 <                sprintf(painCave.errMsg,
175 <                        "DumpReader Error: File \"%s\" ended unexpectedly at line %d\n",
176 <                        filename_.c_str(),
177 <                        lineNum);
178 <                painCave.isFatal = 1;
179 <                simError();
180 <            }
181 <
182 <            for(j = 0; j < i; j++) {
183 <                fgets(readBuffer, sizeof(readBuffer), inFile_);
184 <                lineNum++;
185 <
186 <                if (feof(inFile_)) {
187 <                    sprintf(painCave.errMsg,
188 <                            "DumpReader Error: File \"%s\" ended unexpectedly at line %d,"
189 <                                " with atom %d\n", filename_.c_str(),
190 <                            lineNum,
191 <                            j);
192 <
193 <                    painCave.isFatal = 1;
194 <                    simError();
195 <                }
196 <            }
197 <
198 <            currPos = new fpos_t;
199 <            fgetpos(inFile_, currPos);
200 <            fgets(readBuffer, sizeof(readBuffer), inFile_);
201 <            lineNum++;
202 <        }
203 <
204 <        delete currPos;
205 <        rewind(inFile_);
206 <        
207 <        nframes_ = framePos_.size();
208 < #ifdef IS_MPI
209 <    }
210 <
211 <    MPI_Bcast(&nframes_, 1, MPI_INT, 0, MPI_COMM_WORLD);
212 <
213 <    strcpy(checkPointMsg, "Successfully scanned DumpFile\n");
214 <    MPIcheckPoint();
215 <
216 < #endif // is_mpi
217 <
218 <    isScanned_ = true;
219 < }
220 <
221 < void DumpReader::readFrame(int whichFrame) {
222 <    readSet(whichFrame);
223 < }
224 <
225 < void DumpReader::readSet(int whichFrame) {
226 <  int i;
227 <  int nTotObjs;                  // the number of atoms
228 <  char read_buffer[maxBufferSize];  //the line buffer for reading
229 <  char * eof_test;               // ptr to see when we reach the end of the file
230 <
231 <  Molecule* mol;
232 <  StuntDouble* integrableObject;
233 <  SimInfo::MoleculeIterator mi;
234 <  Molecule::IntegrableObjectIterator ii;
235 <
236 < #ifndef IS_MPI
237 <
238 <    fsetpos(inFile_, framePos_[whichFrame]);
239 <    eof_test = fgets(read_buffer, sizeof(read_buffer), inFile_);
240 <
241 <    if (eof_test == NULL) {
242 <        sprintf(painCave.errMsg,
243 <                "DumpReader error: error reading 1st line of \"%s\"\n",
244 <                filename_.c_str());
245 <        painCave.isFatal = 1;
246 <        simError();
247 <    }
248 <
249 <    nTotObjs = atoi(read_buffer);
250 <
251 <    if (nTotObjs != info_->getNGlobalIntegrableObjects()) {
252 <        sprintf(painCave.errMsg,
253 <                "DumpReader error. %s nIntegrable, %d, "
254 <                    "does not match the meta-data file's nIntegrable, %d.\n",
255 <                filename_.c_str(),
256 <                nTotObjs,
257 <                info_->getNGlobalIntegrableObjects());
258 <
259 <        painCave.isFatal = 1;
260 <        simError();
261 <    }
262 <
263 <    //read the box mat from the comment line
264 <
265 <    eof_test = fgets(read_buffer, sizeof(read_buffer), inFile_);
266 <
267 <    if (eof_test == NULL) {
268 <        sprintf(painCave.errMsg, "DumpReader Error: error in reading commment in %s\n",
269 <                filename_.c_str());
270 <        painCave.isFatal = 1;
271 <        simError();
272 <    }
273 <
274 <    parseCommentLine(read_buffer, info_->getSnapshotManager()->getCurrentSnapshot());
275 <
276 <    //parse dump lines
277 <
278 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
279 <
280 <        for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;
281 <            integrableObject = mol->nextIntegrableObject(ii)) {          
282 <
283 <            eof_test = fgets(read_buffer, sizeof(read_buffer), inFile_);
284 <
285 <            if (eof_test == NULL) {
286 <                sprintf(painCave.errMsg,
287 <                        "DumpReader Error: error in reading file %s\n"
288 <                            "natoms  = %d; index = %d\n"
289 <                            "error reading the line from the file.\n",
290 <                        filename_.c_str(),
291 <                        nTotObjs,
292 <                        i);
293 <
294 <                painCave.isFatal = 1;
295 <                simError();
296 <            }
297 <
298 <            parseDumpLine(read_buffer, integrableObject);
299 <            
300 <            }
301 <    }
302 <
303 <    // MPI Section of code..........
304 <
305 < #else //IS_MPI
306 <
307 <    // first thing first, suspend fatalities.
308 <    int masterNode = 0;
309 <    int nCurObj;
310 <    painCave.isEventLoop = 1;
311 <
312 <    int myStatus; // 1 = wakeup & success; 0 = error; -1 = AllDone
313 <    int haveError;
314 <
315 <    MPI_Status istatus;
316 <    int nitems;
317 <
318 <    nTotObjs = info_->getNGlobalIntegrableObjects();
319 <    haveError = 0;
320 <
321 <    if (worldRank == masterNode) {
322 <        fsetpos(inFile_, framePos_[whichFrame]);
323 <
324 <        eof_test = fgets(read_buffer, sizeof(read_buffer), inFile_);
325 <
326 <        if (eof_test == NULL) {
327 <            sprintf(painCave.errMsg, "DumpReader Error: Error reading 1st line of %s \n ",
328 <                    filename_.c_str());
329 <            painCave.isFatal = 1;
330 <            simError();
331 <        }
332 <
333 <        nitems = atoi(read_buffer);
334 <
335 <        // Check to see that the number of integrable objects in the
336 <        // intial configuration file is the same as derived from the
337 <        // meta-data file.
338 <
339 <        if (nTotObjs != nitems) {
340 <            sprintf(painCave.errMsg,
341 <                    "DumpReader Error. %s nIntegrable, %d, "
342 <                        "does not match the meta-data file's nIntegrable, %d.\n",
343 <                    filename_.c_str(),
344 <                    nTotObjs,
345 <                    info_->getNGlobalIntegrableObjects());
346 <
347 <            painCave.isFatal = 1;
348 <            simError();
349 <        }
350 <
351 <        //read the boxMat from the comment line
352 <
353 <        eof_test = fgets(read_buffer, sizeof(read_buffer), inFile_);
354 <
355 <        if (eof_test == NULL) {
356 <            sprintf(painCave.errMsg, "DumpReader Error: error in reading commment in %s\n",
357 <                    filename_.c_str());
358 <            painCave.isFatal = 1;
359 <            simError();
360 <        }
361 <
362 <        //Every single processor will parse the comment line by itself
363 <        //By using this way, we might lose some efficiency, but if we want to add
364 <        //more parameters into comment line, we only need to modify function
365 <        //parseCommentLine
366 <
367 <        MPI_Bcast(read_buffer, maxBufferSize, MPI_CHAR, masterNode, MPI_COMM_WORLD);
368 <        parseCommentLine(read_buffer, info_->getSnapshotManager()->getCurrentSnapshot());
369 <
370 <        for(i = 0; i < info_->getNGlobalMolecules(); i++) {
371 <            int which_node = info_->getMolToProc(i);
372 <
373 <            if (which_node == masterNode) {
374 <                //molecules belong to master node
375 <
376 <                mol = info_->getMoleculeByGlobalIndex(i);
377 <
378 <                if (mol == NULL) {
379 <                    sprintf(painCave.errMsg, "DumpReader Error: Molecule not found on node %d!", worldRank);
380 <                        painCave.isFatal = 1;
381 <                    simError();
382 <                }
383 <
384 <                for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;
385 <                       integrableObject = mol->nextIntegrableObject(ii)){
386 <                        
387 <                    eof_test = fgets(read_buffer, sizeof(read_buffer), inFile_);
388 <
389 <                    if (eof_test == NULL) {
390 <                        sprintf(painCave.errMsg,
391 <                                "DumpReader Error: error in reading file %s\n"
392 <                                    "natoms  = %d; index = %d\n"
393 <                                    "error reading the line from the file.\n",
394 <                                filename_.c_str(),
395 <                                nTotObjs,
396 <                                i);
397 <
398 <                        painCave.isFatal = 1;
399 <                        simError();
400 <                    }
401 <
402 <                    parseDumpLine(read_buffer, integrableObject);
403 <                }
404 <            } else {
405 <                //molecule belongs to slave nodes
406 <
407 <                MPI_Recv(&nCurObj, 1, MPI_INT, which_node, TAKE_THIS_TAG_INT,
408 <                         MPI_COMM_WORLD, &istatus);
409 <
410 <                for(int j = 0; j < nCurObj; j++) {
411 <                    eof_test = fgets(read_buffer, sizeof(read_buffer), inFile_);
412 <
413 <                    if (eof_test == NULL) {
414 <                        sprintf(painCave.errMsg,
415 <                                "DumpReader Error: error in reading file %s\n"
416 <                                    "natoms  = %d; index = %d\n"
417 <                                    "error reading the line from the file.\n",
418 <                                filename_.c_str(),
419 <                                nTotObjs,
420 <                                i);
421 <
422 <                        painCave.isFatal = 1;
423 <                        simError();
424 <                    }
425 <                    
426 <                    MPI_Send(read_buffer, maxBufferSize, MPI_CHAR, which_node,
427 <                             TAKE_THIS_TAG_CHAR, MPI_COMM_WORLD);
428 <                }
429 <            }
430 <        }
431 <    } else {
432 <        //actions taken at slave nodes
433 <        MPI_Bcast(read_buffer, maxBufferSize, MPI_CHAR, masterNode, MPI_COMM_WORLD);
434 <
435 <        /**@todo*/
436 <        parseCommentLine(read_buffer, info_->getSnapshotManager()->getCurrentSnapshot());
437 <
438 <        for(i = 0; i < info_->getNGlobalMolecules(); i++) {
439 <            int which_node = info_->getMolToProc(i);
440 <
441 <            if (which_node == worldRank) {
442 <                //molecule with global index i belongs to this processor
443 <                
444 <                mol = info_->getMoleculeByGlobalIndex(i);
445 <                if (mol == NULL) {
446 <                    sprintf(painCave.errMsg, "DumpReader Error: Molecule not found on node %d!", worldRank);
447 <                    painCave.isFatal = 1;
448 <                    simError();
449 <                }
450 <                
451 <                nCurObj = mol->getNIntegrableObjects();
452 <
453 <                MPI_Send(&nCurObj, 1, MPI_INT, masterNode, TAKE_THIS_TAG_INT,
454 <                         MPI_COMM_WORLD);
455 <
456 <                for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;
457 <                       integrableObject = mol->nextIntegrableObject(ii)){
458 <                        
459 <                    MPI_Recv(read_buffer, maxBufferSize, MPI_CHAR, masterNode,
460 <                             TAKE_THIS_TAG_CHAR, MPI_COMM_WORLD, &istatus);
461 <
462 <                    parseDumpLine(read_buffer, integrableObject);
463 <                }
464 <                      
465 <            }
466 <            
467 <        }
468 <        
469 <    }
470 <
471 < #endif
472 <
473 < }
474 <
475 < void DumpReader::parseDumpLine(char *line, StuntDouble *integrableObject) {
476 <
477 <    Vector3d pos;  // position place holders
478 <    Vector3d vel;  // velocity placeholders
479 <    Quat4d q;    // the quaternions
480 <    Vector3d ji;   // angular velocity placeholders;
481 <    StringTokenizer tokenizer(line);
482 <    int nTokens;
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 <    nTokens = tokenizer.countTokens();
485 <
486 <    if (nTokens < 14) {
487 <            sprintf(painCave.errMsg,
488 <                    "DumpReader Error: Not enough Tokens.\n");
489 <            painCave.isFatal = 1;
490 <            simError();
491 <    }
492 <
493 <    std::string name = tokenizer.nextToken();
494 <
495 <    if (name != integrableObject->getType()) {
496 <
497 <            sprintf(painCave.errMsg,
498 <                    "DumpReader Error: Atom type [%s] in %s does not match Atom Type [%s] in .md file.\n",
499 <                    name.c_str(), filename_.c_str(), integrableObject->getType().c_str());
500 <            painCave.isFatal = 1;
501 <            simError();        
502 <    }
503 <
504 <    pos[0] = tokenizer.nextTokenAsDouble();
505 <    pos[1] = tokenizer.nextTokenAsDouble();
506 <    pos[2] = tokenizer.nextTokenAsDouble();
507 <    integrableObject->setPos(pos);
75 > #ifdef IS_MPI
76      
77 <    vel[0] = tokenizer.nextTokenAsDouble();
78 <    vel[1] = tokenizer.nextTokenAsDouble();
79 <    vel[2] = tokenizer.nextTokenAsDouble();
80 <    integrableObject->setVel(vel);
81 <
82 <    if (integrableObject->isDirectional()) {
83 <        
84 <        q[0] = tokenizer.nextTokenAsDouble();
85 <        q[1] = tokenizer.nextTokenAsDouble();
86 <        q[2] = tokenizer.nextTokenAsDouble();
87 <        q[3] = tokenizer.nextTokenAsDouble();
88 <
89 <        double qlen = q.length();
90 <        if (qlen < oopse::epsilon) { //check quaternion is not equal to 0
91 <            
92 <            sprintf(painCave.errMsg,
525 <                    "DumpReader Error: initial quaternion error (q0^2 + q1^2 + q2^2 + q3^2 ~ 0).\n");
526 <            painCave.isFatal = 1;
527 <            simError();
528 <            
529 <        }
530 <
531 <        q.normalize();
532 <              
533 <        integrableObject->setQ(q);
534 <        
535 <        ji[0] = tokenizer.nextTokenAsDouble();
536 <        ji[1] = tokenizer.nextTokenAsDouble();
537 <        ji[2] = tokenizer.nextTokenAsDouble();
538 <        integrableObject->setJ(ji);
539 <    }
540 <
541 < }
542 <
543 <
544 < void DumpReader::parseCommentLine(char* line, Snapshot* s) {
545 <    double currTime;
546 <    Mat3x3d hmat;
547 <    double chi;
548 <    double integralOfChiDt;
549 <    Mat3x3d eta;
550 <
551 <    StringTokenizer tokenizer(line);
552 <    int nTokens;
553 <
554 <    nTokens = tokenizer.countTokens();
555 <
556 <    //comment line should at least contain 10 tokens: current time(1 token) and  h-matrix(9 tokens)
557 <    if (nTokens < 10) {
558 <            sprintf(painCave.errMsg,
559 <                    "DumpReader Error: Not enough tokens in comment line: %s", line);
560 <            painCave.isFatal = 1;
561 <            simError();  
562 <    }
563 <
564 <    //read current time
565 <    currTime = tokenizer.nextTokenAsDouble();
566 <    s->setTime(currTime);
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 <    //read h-matrix
95 <    hmat(0, 0) = tokenizer.nextTokenAsDouble();
570 <    hmat(0, 1) = tokenizer.nextTokenAsDouble();
571 <    hmat(0, 2) = tokenizer.nextTokenAsDouble();
572 <    hmat(1, 0) = tokenizer.nextTokenAsDouble();
573 <    hmat(1, 1) = tokenizer.nextTokenAsDouble();
574 <    hmat(1, 2) = tokenizer.nextTokenAsDouble();
575 <    hmat(2, 0) = tokenizer.nextTokenAsDouble();
576 <    hmat(2, 1) = tokenizer.nextTokenAsDouble();
577 <    hmat(2, 2) = tokenizer.nextTokenAsDouble();
578 <    s->setHmat(hmat);
94 >    strcpy(checkPointMsg, "Dump file opened for reading successfully.");
95 >    MPIcheckPoint();
96      
97 <    //read chi and integrablOfChidt, they should apprear in pair
581 <    if (tokenizer.countTokens() >= 2) {
582 <        chi = tokenizer.nextTokenAsDouble();
583 <        integralOfChiDt = tokenizer.nextTokenAsDouble();            
584 <
585 <        s->setChi(chi);
586 <        s->setIntegralOfChiDt(integralOfChiDt);
587 <    }
97 > #endif
98      
99 <    //read eta (eta is 3x3 matrix)
100 <    if (tokenizer.countTokens() >= 9) {
101 <        eta(0, 0) = tokenizer.nextTokenAsDouble();
102 <        eta(0, 1) = tokenizer.nextTokenAsDouble();
593 <        eta(0, 2) = tokenizer.nextTokenAsDouble();
594 <        eta(1, 0) = tokenizer.nextTokenAsDouble();
595 <        eta(1, 1) = tokenizer.nextTokenAsDouble();
596 <        eta(1, 2) = tokenizer.nextTokenAsDouble();
597 <        eta(2, 0) = tokenizer.nextTokenAsDouble();
598 <        eta(2, 1) = tokenizer.nextTokenAsDouble();
599 <        eta(2, 2) = tokenizer.nextTokenAsDouble();      
600 <
601 <        s->setEta(eta);
602 <    }
603 <
99 >    return;
100 >  }
101 >  
102 >  DumpReader::~DumpReader() {
103      
104 < }
105 <
106 < }//end namespace oopse
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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