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root/group/trunk/OOPSE-3.0/src/io/DumpWriter.cpp
Revision: 2060
Committed: Thu Feb 24 20:55:07 2005 UTC (19 years, 4 months ago) by tim
File size: 20918 byte(s)
Log Message:
adding basic_teebuf which can operate on multiple stream simutaneously.

File Contents

# Content
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 #include "io/DumpWriter.hpp"
43 #include "primitives/Molecule.hpp"
44 #include "utils/simError.h"
45 #include "io/basic_teebuf.hpp"
46 #ifdef IS_MPI
47 #include <mpi.h>
48 #endif //is_mpi
49
50 namespace oopse {
51
52 DumpWriter::DumpWriter(SimInfo* info)
53 : info_(info), filename_(info->getDumpFileName()), eorFilename_(info->getFinalConfigFileName()){
54 #ifdef IS_MPI
55
56 if (worldRank == 0) {
57 #endif // is_mpi
58
59 dumpFile_.open(filename_.c_str(), std::ios::out | std::ios::trunc);
60
61 if (!dumpFile_) {
62 sprintf(painCave.errMsg, "Could not open \"%s\" for dump output.\n",
63 filename_.c_str());
64 painCave.isFatal = 1;
65 simError();
66 }
67
68 #ifdef IS_MPI
69
70 }
71
72 sprintf(checkPointMsg, "Sucessfully opened output file for dumping.\n");
73 MPIcheckPoint();
74
75 #endif // is_mpi
76
77 }
78
79
80 DumpWriter::DumpWriter(SimInfo* info, const std::string& filename)
81 : info_(info), filename_(filename){
82 #ifdef IS_MPI
83
84 if (worldRank == 0) {
85 #endif // is_mpi
86
87 eorFilename_ = filename_.substr(0, filename_.rfind(".")) + ".eor";
88 dumpFile_.open(filename_.c_str(), std::ios::out | std::ios::trunc);
89
90 if (!dumpFile_) {
91 sprintf(painCave.errMsg, "Could not open \"%s\" for dump output.\n",
92 filename_.c_str());
93 painCave.isFatal = 1;
94 simError();
95 }
96
97 #ifdef IS_MPI
98
99 }
100
101 sprintf(checkPointMsg, "Sucessfully opened output file for dumping.\n");
102 MPIcheckPoint();
103
104 #endif // is_mpi
105
106 }
107
108 DumpWriter::~DumpWriter() {
109
110 #ifdef IS_MPI
111
112 if (worldRank == 0) {
113 #endif // is_mpi
114
115 dumpFile_.close();
116
117 #ifdef IS_MPI
118
119 }
120
121 #endif // is_mpi
122
123 }
124
125 void DumpWriter::writeCommentLine(std::ostream& os, Snapshot* s) {
126
127 double currentTime;
128 Mat3x3d hmat;
129 double chi;
130 double integralOfChiDt;
131 Mat3x3d eta;
132
133 currentTime = s->getTime();
134 hmat = s->getHmat();
135 chi = s->getChi();
136 integralOfChiDt = s->getIntegralOfChiDt();
137 eta = s->getEta();
138
139 os << currentTime << ";\t"
140 << hmat(0, 0) << "\t" << hmat(1, 0) << "\t" << hmat(2, 0) << ";\t"
141 << hmat(0, 1) << "\t" << hmat(1, 1) << "\t" << hmat(2, 1) << ";\t"
142 << hmat(0, 2) << "\t" << hmat(1, 2) << "\t" << hmat(2, 2) << ";\t";
143
144 //write out additional parameters, such as chi and eta
145
146 os << chi << "\t" << integralOfChiDt << "\t;";
147
148 os << eta(0, 0) << "\t" << eta(1, 0) << "\t" << eta(2, 0) << ";\t"
149 << eta(0, 1) << "\t" << eta(1, 1) << "\t" << eta(2, 1) << ";\t"
150 << eta(0, 2) << "\t" << eta(1, 2) << "\t" << eta(2, 2) << ";";
151
152 os << "\n";
153 }
154
155 void DumpWriter::writeFrame(std::ostream& os) {
156 const int BUFFERSIZE = 2000;
157 const int MINIBUFFERSIZE = 100;
158
159 char tempBuffer[BUFFERSIZE];
160 char writeLine[BUFFERSIZE];
161
162 Quat4d q;
163 Vector3d ji;
164 Vector3d pos;
165 Vector3d vel;
166
167 Molecule* mol;
168 StuntDouble* integrableObject;
169 SimInfo::MoleculeIterator mi;
170 Molecule::IntegrableObjectIterator ii;
171
172 int nTotObjects;
173 nTotObjects = info_->getNGlobalIntegrableObjects();
174
175 #ifndef IS_MPI
176
177
178 os << nTotObjects << "\n";
179
180 writeCommentLine(os, info_->getSnapshotManager()->getCurrentSnapshot());
181
182 for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
183
184 for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;
185 integrableObject = mol->nextIntegrableObject(ii)) {
186
187
188 pos = integrableObject->getPos();
189 vel = integrableObject->getVel();
190
191 sprintf(tempBuffer, "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
192 integrableObject->getType().c_str(),
193 pos[0], pos[1], pos[2],
194 vel[0], vel[1], vel[2]);
195
196 strcpy(writeLine, tempBuffer);
197
198 if (integrableObject->isDirectional()) {
199 q = integrableObject->getQ();
200 ji = integrableObject->getJ();
201
202 sprintf(tempBuffer, "%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n",
203 q[0], q[1], q[2], q[3],
204 ji[0], ji[1], ji[2]);
205 strcat(writeLine, tempBuffer);
206 } else {
207 strcat(writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n");
208 }
209
210 os << writeLine;
211
212 }
213 }
214
215 os.flush();
216 #else // is_mpi
217 /*********************************************************************
218 * Documentation? You want DOCUMENTATION?
219 *
220 * Why all the potatoes below?
221 *
222 * To make a long story short, the original version of DumpWriter
223 * worked in the most inefficient way possible. Node 0 would
224 * poke each of the node for an individual atom's formatted data
225 * as node 0 worked its way down the global index. This was particularly
226 * inefficient since the method blocked all processors at every atom
227 * (and did it twice!).
228 *
229 * An intermediate version of DumpWriter could be described from Node
230 * zero's perspective as follows:
231 *
232 * 1) Have 100 of your friends stand in a circle.
233 * 2) When you say go, have all of them start tossing potatoes at
234 * you (one at a time).
235 * 3) Catch the potatoes.
236 *
237 * It was an improvement, but MPI has buffers and caches that could
238 * best be described in this analogy as "potato nets", so there's no
239 * need to block the processors atom-by-atom.
240 *
241 * This new and improved DumpWriter works in an even more efficient
242 * way:
243 *
244 * 1) Have 100 of your friend stand in a circle.
245 * 2) When you say go, have them start tossing 5-pound bags of
246 * potatoes at you.
247 * 3) Once you've caught a friend's bag of potatoes,
248 * toss them a spud to let them know they can toss another bag.
249 *
250 * How's THAT for documentation?
251 *
252 *********************************************************************/
253 const int masterNode = 0;
254
255 int * potatoes;
256 int myPotato;
257 int nProc;
258 int which_node;
259 double atomData[13];
260 int isDirectional;
261 const char * atomTypeString;
262 char MPIatomTypeString[MINIBUFFERSIZE];
263 int msgLen; // the length of message actually recieved at master nodes
264 int haveError;
265 MPI_Status istatus;
266 int nCurObj;
267
268 // code to find maximum tag value
269 int * tagub;
270 int flag;
271 int MAXTAG;
272 MPI_Attr_get(MPI_COMM_WORLD, MPI_TAG_UB, &tagub, &flag);
273
274 if (flag) {
275 MAXTAG = *tagub;
276 } else {
277 MAXTAG = 32767;
278 }
279
280 if (worldRank == masterNode) { //master node (node 0) is responsible for writing the dump file
281
282 // Node 0 needs a list of the magic potatoes for each processor;
283
284 MPI_Comm_size(MPI_COMM_WORLD, &nProc);
285 potatoes = new int[nProc];
286
287 //write out the comment lines
288 for(int i = 0; i < nProc; i++) {
289 potatoes[i] = 0;
290 }
291
292
293 os << nTotObjects << "\n";
294 writeCommentLine(os, info_->getSnapshotManager()->getCurrentSnapshot());
295
296 for(int i = 0; i < info_->getNGlobalMolecules(); i++) {
297
298 // Get the Node number which has this atom;
299
300 which_node = info_->getMolToProc(i);
301
302 if (which_node != masterNode) { //current molecule is in slave node
303 if (potatoes[which_node] + 1 >= MAXTAG) {
304 // The potato was going to exceed the maximum value,
305 // so wrap this processor potato back to 0:
306
307 potatoes[which_node] = 0;
308 MPI_Send(&potatoes[which_node], 1, MPI_INT, which_node, 0,
309 MPI_COMM_WORLD);
310 }
311
312 myPotato = potatoes[which_node];
313
314 //recieve the number of integrableObject in current molecule
315 MPI_Recv(&nCurObj, 1, MPI_INT, which_node, myPotato,
316 MPI_COMM_WORLD, &istatus);
317 myPotato++;
318
319 for(int l = 0; l < nCurObj; l++) {
320 if (potatoes[which_node] + 2 >= MAXTAG) {
321 // The potato was going to exceed the maximum value,
322 // so wrap this processor potato back to 0:
323
324 potatoes[which_node] = 0;
325 MPI_Send(&potatoes[which_node], 1, MPI_INT, which_node,
326 0, MPI_COMM_WORLD);
327 }
328
329 MPI_Recv(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR,
330 which_node, myPotato, MPI_COMM_WORLD,
331 &istatus);
332
333 atomTypeString = MPIatomTypeString;
334
335 myPotato++;
336
337 MPI_Recv(atomData, 13, MPI_DOUBLE, which_node, myPotato,
338 MPI_COMM_WORLD, &istatus);
339 myPotato++;
340
341 MPI_Get_count(&istatus, MPI_DOUBLE, &msgLen);
342
343 if (msgLen == 13)
344 isDirectional = 1;
345 else
346 isDirectional = 0;
347
348 // If we've survived to here, format the line:
349
350 if (!isDirectional) {
351 sprintf(writeLine, "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
352 atomTypeString, atomData[0],
353 atomData[1], atomData[2],
354 atomData[3], atomData[4],
355 atomData[5]);
356
357 strcat(writeLine,
358 "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n");
359 } else {
360 sprintf(writeLine,
361 "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n",
362 atomTypeString,
363 atomData[0],
364 atomData[1],
365 atomData[2],
366 atomData[3],
367 atomData[4],
368 atomData[5],
369 atomData[6],
370 atomData[7],
371 atomData[8],
372 atomData[9],
373 atomData[10],
374 atomData[11],
375 atomData[12]);
376 }
377
378 os << writeLine;
379
380 } // end for(int l =0)
381
382 potatoes[which_node] = myPotato;
383 } else { //master node has current molecule
384
385 mol = info_->getMoleculeByGlobalIndex(i);
386
387 if (mol == NULL) {
388 sprintf(painCave.errMsg, "Molecule not found on node %d!", worldRank);
389 painCave.isFatal = 1;
390 simError();
391 }
392
393 for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;
394 integrableObject = mol->nextIntegrableObject(ii)) {
395
396 atomTypeString = integrableObject->getType().c_str();
397
398 pos = integrableObject->getPos();
399 vel = integrableObject->getVel();
400
401 atomData[0] = pos[0];
402 atomData[1] = pos[1];
403 atomData[2] = pos[2];
404
405 atomData[3] = vel[0];
406 atomData[4] = vel[1];
407 atomData[5] = vel[2];
408
409 isDirectional = 0;
410
411 if (integrableObject->isDirectional()) {
412 isDirectional = 1;
413
414 q = integrableObject->getQ();
415 ji = integrableObject->getJ();
416
417 for(int j = 0; j < 6; j++) {
418 atomData[j] = atomData[j];
419 }
420
421 atomData[6] = q[0];
422 atomData[7] = q[1];
423 atomData[8] = q[2];
424 atomData[9] = q[3];
425
426 atomData[10] = ji[0];
427 atomData[11] = ji[1];
428 atomData[12] = ji[2];
429 }
430
431 // If we've survived to here, format the line:
432
433 if (!isDirectional) {
434 sprintf(writeLine, "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
435 atomTypeString, atomData[0],
436 atomData[1], atomData[2],
437 atomData[3], atomData[4],
438 atomData[5]);
439
440 strcat(writeLine,
441 "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n");
442 } else {
443 sprintf(writeLine,
444 "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n",
445 atomTypeString,
446 atomData[0],
447 atomData[1],
448 atomData[2],
449 atomData[3],
450 atomData[4],
451 atomData[5],
452 atomData[6],
453 atomData[7],
454 atomData[8],
455 atomData[9],
456 atomData[10],
457 atomData[11],
458 atomData[12]);
459 }
460
461
462 os << writeLine;
463
464 } //end for(iter = integrableObject.begin())
465 }
466 } //end for(i = 0; i < mpiSim->getNmol())
467
468 os.flush();
469
470 sprintf(checkPointMsg, "Sucessfully took a dump.\n");
471 MPIcheckPoint();
472
473 delete [] potatoes;
474 } else {
475
476 // worldRank != 0, so I'm a remote node.
477
478 // Set my magic potato to 0:
479
480 myPotato = 0;
481
482 for(int i = 0; i < info_->getNGlobalMolecules(); i++) {
483
484 // Am I the node which has this integrableObject?
485 int whichNode = info_->getMolToProc(i);
486 if (whichNode == worldRank) {
487 if (myPotato + 1 >= MAXTAG) {
488
489 // The potato was going to exceed the maximum value,
490 // so wrap this processor potato back to 0 (and block until
491 // node 0 says we can go:
492
493 MPI_Recv(&myPotato, 1, MPI_INT, 0, 0, MPI_COMM_WORLD,
494 &istatus);
495 }
496
497 mol = info_->getMoleculeByGlobalIndex(i);
498
499
500 nCurObj = mol->getNIntegrableObjects();
501
502 MPI_Send(&nCurObj, 1, MPI_INT, 0, myPotato, MPI_COMM_WORLD);
503 myPotato++;
504
505 for (integrableObject = mol->beginIntegrableObject(ii); integrableObject != NULL;
506 integrableObject = mol->nextIntegrableObject(ii)) {
507
508 if (myPotato + 2 >= MAXTAG) {
509
510 // The potato was going to exceed the maximum value,
511 // so wrap this processor potato back to 0 (and block until
512 // node 0 says we can go:
513
514 MPI_Recv(&myPotato, 1, MPI_INT, 0, 0, MPI_COMM_WORLD,
515 &istatus);
516 }
517
518 atomTypeString = integrableObject->getType().c_str();
519
520 pos = integrableObject->getPos();
521 vel = integrableObject->getVel();
522
523 atomData[0] = pos[0];
524 atomData[1] = pos[1];
525 atomData[2] = pos[2];
526
527 atomData[3] = vel[0];
528 atomData[4] = vel[1];
529 atomData[5] = vel[2];
530
531 isDirectional = 0;
532
533 if (integrableObject->isDirectional()) {
534 isDirectional = 1;
535
536 q = integrableObject->getQ();
537 ji = integrableObject->getJ();
538
539 atomData[6] = q[0];
540 atomData[7] = q[1];
541 atomData[8] = q[2];
542 atomData[9] = q[3];
543
544 atomData[10] = ji[0];
545 atomData[11] = ji[1];
546 atomData[12] = ji[2];
547 }
548
549 strncpy(MPIatomTypeString, atomTypeString, MINIBUFFERSIZE);
550
551 // null terminate the std::string before sending (just in case):
552 MPIatomTypeString[MINIBUFFERSIZE - 1] = '\0';
553
554 MPI_Send(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR, 0,
555 myPotato, MPI_COMM_WORLD);
556
557 myPotato++;
558
559 if (isDirectional) {
560 MPI_Send(atomData, 13, MPI_DOUBLE, 0, myPotato,
561 MPI_COMM_WORLD);
562 } else {
563 MPI_Send(atomData, 6, MPI_DOUBLE, 0, myPotato,
564 MPI_COMM_WORLD);
565 }
566
567 myPotato++;
568 }
569
570 }
571
572 }
573 sprintf(checkPointMsg, "Sucessfully took a dump.\n");
574 MPIcheckPoint();
575 }
576
577 #endif // is_mpi
578
579 }
580
581 void DumpWriter::writeDump() {
582 writeFrame(dumpFile_);
583
584 }
585
586 void DumpWriter::writeEor() {
587 std::ofstream eorStream;
588
589 #ifdef IS_MPI
590 if (worldRank == 0) {
591 #endif // is_mpi
592
593 eorStream.open(eorFilename_.c_str());
594 if (!eorStream.is_open()) {
595 sprintf(painCave.errMsg, "DumpWriter : Could not open \"%s\" for writing.\n",
596 eorFilename_.c_str());
597 painCave.isFatal = 1;
598 simError();
599 }
600
601 #ifdef IS_MPI
602 }
603 #endif // is_mpi
604
605 writeFrame(eorStream);
606 }
607
608
609 void DumpWriter::writeDumpAndEor() {
610 std::ofstream eorStream;
611 std::vector<std::streambuf*> buffers;
612 #ifdef IS_MPI
613 if (worldRank == 0) {
614 #endif // is_mpi
615
616 buffers.push_back(dumpFile_.rdbuf());
617
618 eorStream.open(eorFilename_.c_str());
619 if (!eorStream.is_open()) {
620 sprintf(painCave.errMsg, "DumpWriter : Could not open \"%s\" for writing.\n",
621 eorFilename_.c_str());
622 painCave.isFatal = 1;
623 simError();
624 }
625
626 buffers.push_back(eorStream.rdbuf());
627
628 #ifdef IS_MPI
629 }
630 #endif // is_mpi
631
632 TeeBuf tbuf(buffers.begin(), buffers.end());
633 std::ostream os(&tbuf);
634
635 writeFrame(os);
636
637 }
638
639
640
641 }//end namespace oopse