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root/group/trunk/OOPSE-2.0/src/io/DumpWriter.cpp
Revision: 1772
Committed: Tue Nov 23 22:48:31 2004 UTC (19 years, 7 months ago) by chrisfen
File size: 17366 byte(s)
Log Message:
Improvements to restraints

File Contents

# Content
1 #define _LARGEFILE_SOURCE64
2 #define _FILE_OFFSET_BITS 64
3
4 #include <string.h>
5 #include <iostream>
6 #include <fstream>
7 #include <algorithm>
8 #include <utility>
9
10 #ifdef IS_MPI
11 #include <mpi.h>
12 #include "brains/mpiSimulation.hpp"
13
14 namespace dWrite{
15 void DieDieDie( void );
16 }
17
18 using namespace dWrite;
19 #endif //is_mpi
20
21 #include "io/ReadWrite.hpp"
22 #include "utils/simError.h"
23
24 DumpWriter::DumpWriter( SimInfo* the_entry_plug ){
25
26 entry_plug = the_entry_plug;
27
28 #ifdef IS_MPI
29 if(worldRank == 0 ){
30 #endif // is_mpi
31
32 dumpFile.open(entry_plug->sampleName.c_str(), ios::out | ios::trunc );
33
34 if( !dumpFile ){
35
36 sprintf( painCave.errMsg,
37 "Could not open \"%s\" for dump output.\n",
38 entry_plug->sampleName.c_str());
39 painCave.isFatal = 1;
40 simError();
41 }
42
43 #ifdef IS_MPI
44 }
45
46 //sort the local atoms by global index
47 sortByGlobalIndex();
48
49 sprintf( checkPointMsg,
50 "Sucessfully opened output file for dumping.\n");
51 MPIcheckPoint();
52 #endif // is_mpi
53 }
54
55 DumpWriter::~DumpWriter( ){
56
57 #ifdef IS_MPI
58 if(worldRank == 0 ){
59 #endif // is_mpi
60
61 dumpFile.close();
62
63 #ifdef IS_MPI
64 }
65 #endif // is_mpi
66 }
67
68 #ifdef IS_MPI
69
70 /**
71 * A hook function to load balancing
72 */
73
74 void DumpWriter::update(){
75 sortByGlobalIndex();
76 }
77
78 /**
79 * Auxiliary sorting function
80 */
81
82 bool indexSortingCriterion(const pair<int, int>& p1, const pair<int, int>& p2){
83 return p1.second < p2.second;
84 }
85
86 /**
87 * Sorting the local index by global index
88 */
89
90 void DumpWriter::sortByGlobalIndex(){
91 Molecule* mols = entry_plug->molecules;
92 indexArray.clear();
93
94 for(int i = 0; i < entry_plug->n_mol;i++)
95 indexArray.push_back(make_pair(i, mols[i].getGlobalIndex()));
96
97 sort(indexArray.begin(), indexArray.end(), indexSortingCriterion);
98 }
99
100 #endif
101
102 void DumpWriter::writeDump(double currentTime){
103
104 ofstream finalOut;
105 vector<ofstream*> fileStreams;
106
107 #ifdef IS_MPI
108 if(worldRank == 0 ){
109 #endif
110 finalOut.open( entry_plug->finalName.c_str(), ios::out | ios::trunc );
111 if( !finalOut ){
112 sprintf( painCave.errMsg,
113 "Could not open \"%s\" for final dump output.\n",
114 entry_plug->finalName.c_str() );
115 painCave.isFatal = 1;
116 simError();
117 }
118 #ifdef IS_MPI
119 }
120 #endif // is_mpi
121
122 fileStreams.push_back(&finalOut);
123 fileStreams.push_back(&dumpFile);
124
125 writeFrame(fileStreams, currentTime);
126
127 #ifdef IS_MPI
128 finalOut.close();
129 #endif
130
131 }
132
133 void DumpWriter::writeFinal(double currentTime){
134
135 ofstream finalOut;
136 vector<ofstream*> fileStreams;
137
138 #ifdef IS_MPI
139 if(worldRank == 0 ){
140 #endif // is_mpi
141
142 finalOut.open( entry_plug->finalName.c_str(), ios::out | ios::trunc );
143
144 if( !finalOut ){
145 sprintf( painCave.errMsg,
146 "Could not open \"%s\" for final dump output.\n",
147 entry_plug->finalName.c_str() );
148 painCave.isFatal = 1;
149 simError();
150 }
151
152 #ifdef IS_MPI
153 }
154 #endif // is_mpi
155
156 fileStreams.push_back(&finalOut);
157 writeFrame(fileStreams, currentTime);
158
159 #ifdef IS_MPI
160 finalOut.close();
161 #endif
162
163 }
164
165 void DumpWriter::writeFrame( vector<ofstream*>& outFile, double currentTime ){
166
167 const int BUFFERSIZE = 2000;
168 const int MINIBUFFERSIZE = 100;
169
170 char tempBuffer[BUFFERSIZE];
171 char writeLine[BUFFERSIZE];
172
173 int i;
174 unsigned int k;
175
176 #ifdef IS_MPI
177
178 /*********************************************************************
179 * Documentation? You want DOCUMENTATION?
180 *
181 * Why all the potatoes below?
182 *
183 * To make a long story short, the original version of DumpWriter
184 * worked in the most inefficient way possible. Node 0 would
185 * poke each of the node for an individual atom's formatted data
186 * as node 0 worked its way down the global index. This was particularly
187 * inefficient since the method blocked all processors at every atom
188 * (and did it twice!).
189 *
190 * An intermediate version of DumpWriter could be described from Node
191 * zero's perspective as follows:
192 *
193 * 1) Have 100 of your friends stand in a circle.
194 * 2) When you say go, have all of them start tossing potatoes at
195 * you (one at a time).
196 * 3) Catch the potatoes.
197 *
198 * It was an improvement, but MPI has buffers and caches that could
199 * best be described in this analogy as "potato nets", so there's no
200 * need to block the processors atom-by-atom.
201 *
202 * This new and improved DumpWriter works in an even more efficient
203 * way:
204 *
205 * 1) Have 100 of your friend stand in a circle.
206 * 2) When you say go, have them start tossing 5-pound bags of
207 * potatoes at you.
208 * 3) Once you've caught a friend's bag of potatoes,
209 * toss them a spud to let them know they can toss another bag.
210 *
211 * How's THAT for documentation?
212 *
213 *********************************************************************/
214
215 int *potatoes;
216 int myPotato;
217
218 int nProc;
219 int j, which_node, done, which_atom, local_index, currentIndex;
220 double atomData[13];
221 int isDirectional;
222 char* atomTypeString;
223 char MPIatomTypeString[MINIBUFFERSIZE];
224 int nObjects;
225 int msgLen; // the length of message actually recieved at master nodes
226 #endif //is_mpi
227
228 double q[4], ji[3];
229 DirectionalAtom* dAtom;
230 double pos[3], vel[3];
231 int nTotObjects;
232 StuntDouble* sd;
233 char* molName;
234 vector<StuntDouble*> integrableObjects;
235 vector<StuntDouble*>::iterator iter;
236 nTotObjects = entry_plug->getTotIntegrableObjects();
237 #ifndef IS_MPI
238
239 for(k = 0; k < outFile.size(); k++){
240 *outFile[k] << nTotObjects << "\n";
241
242 *outFile[k] << currentTime << ";\t"
243 << entry_plug->Hmat[0][0] << "\t"
244 << entry_plug->Hmat[1][0] << "\t"
245 << entry_plug->Hmat[2][0] << ";\t"
246
247 << entry_plug->Hmat[0][1] << "\t"
248 << entry_plug->Hmat[1][1] << "\t"
249 << entry_plug->Hmat[2][1] << ";\t"
250
251 << entry_plug->Hmat[0][2] << "\t"
252 << entry_plug->Hmat[1][2] << "\t"
253 << entry_plug->Hmat[2][2] << ";";
254
255 //write out additional parameters, such as chi and eta
256 *outFile[k] << entry_plug->the_integrator->getAdditionalParameters() << endl;
257 }
258
259 for( i=0; i< entry_plug->n_mol; i++ ){
260
261 integrableObjects = entry_plug->molecules[i].getIntegrableObjects();
262 molName = (entry_plug->compStamps[entry_plug->molecules[i].getStampID()])->getID();
263
264 for( iter = integrableObjects.begin();iter != integrableObjects.end(); ++iter){
265 sd = *iter;
266 sd->getPos(pos);
267 sd->getVel(vel);
268
269 sprintf( tempBuffer,
270 "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
271 sd->getType(),
272 pos[0],
273 pos[1],
274 pos[2],
275 vel[0],
276 vel[1],
277 vel[2]);
278 strcpy( writeLine, tempBuffer );
279
280 if( sd->isDirectional() ){
281
282 sd->getQ( q );
283 sd->getJ( ji );
284
285 sprintf( tempBuffer,
286 "%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n",
287 q[0],
288 q[1],
289 q[2],
290 q[3],
291 ji[0],
292 ji[1],
293 ji[2]);
294 strcat( writeLine, tempBuffer );
295 }
296 else
297 strcat( writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n" );
298
299 for(k = 0; k < outFile.size(); k++)
300 *outFile[k] << writeLine;
301 }
302
303 }
304
305 #else // is_mpi
306
307 /* code to find maximum tag value */
308
309 int *tagub, flag, MAXTAG;
310 MPI_Attr_get(MPI_COMM_WORLD, MPI_TAG_UB, &tagub, &flag);
311 if (flag) {
312 MAXTAG = *tagub;
313 } else {
314 MAXTAG = 32767;
315 }
316
317 int haveError;
318
319 MPI_Status istatus;
320 int nCurObj;
321 int *MolToProcMap = mpiSim->getMolToProcMap();
322
323 // write out header and node 0's coordinates
324
325 if( worldRank == 0 ){
326
327 // Node 0 needs a list of the magic potatoes for each processor;
328
329 nProc = mpiSim->getNProcessors();
330 potatoes = new int[nProc];
331
332 //write out the comment lines
333 for (i = 0; i < nProc; i++)
334 potatoes[i] = 0;
335
336 for(k = 0; k < outFile.size(); k++){
337 *outFile[k] << nTotObjects << "\n";
338
339 *outFile[k] << currentTime << ";\t"
340 << entry_plug->Hmat[0][0] << "\t"
341 << entry_plug->Hmat[1][0] << "\t"
342 << entry_plug->Hmat[2][0] << ";\t"
343
344 << entry_plug->Hmat[0][1] << "\t"
345 << entry_plug->Hmat[1][1] << "\t"
346 << entry_plug->Hmat[2][1] << ";\t"
347
348 << entry_plug->Hmat[0][2] << "\t"
349 << entry_plug->Hmat[1][2] << "\t"
350 << entry_plug->Hmat[2][2] << ";";
351
352 *outFile[k] << entry_plug->the_integrator->getAdditionalParameters()
353 << endl;
354 }
355
356 currentIndex = 0;
357
358 for (i = 0 ; i < mpiSim->getNMolGlobal(); i++ ) {
359
360 // Get the Node number which has this atom;
361
362 which_node = MolToProcMap[i];
363
364 if (which_node != 0) {
365
366 if (potatoes[which_node] + 1 >= MAXTAG) {
367 // The potato was going to exceed the maximum value,
368 // so wrap this processor potato back to 0:
369
370 potatoes[which_node] = 0;
371 MPI_Send(&potatoes[which_node], 1, MPI_INT, which_node, 0,
372 MPI_COMM_WORLD);
373
374 }
375
376 myPotato = potatoes[which_node];
377
378 //recieve the number of integrableObject in current molecule
379 MPI_Recv(&nCurObj, 1, MPI_INT, which_node,
380 myPotato, MPI_COMM_WORLD, &istatus);
381 myPotato++;
382
383 for(int l = 0; l < nCurObj; l++){
384
385 if (potatoes[which_node] + 2 >= MAXTAG) {
386 // The potato was going to exceed the maximum value,
387 // so wrap this processor potato back to 0:
388
389 potatoes[which_node] = 0;
390 MPI_Send(&potatoes[which_node], 1, MPI_INT, which_node, 0, MPI_COMM_WORLD);
391
392 }
393
394 MPI_Recv(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR, which_node,
395 myPotato, MPI_COMM_WORLD, &istatus);
396
397 atomTypeString = MPIatomTypeString;
398
399 myPotato++;
400
401 MPI_Recv(atomData, 13, MPI_DOUBLE, which_node, myPotato, MPI_COMM_WORLD, &istatus);
402 myPotato++;
403
404 MPI_Get_count(&istatus, MPI_DOUBLE, &msgLen);
405
406 if(msgLen == 13)
407 isDirectional = 1;
408 else
409 isDirectional = 0;
410
411 // If we've survived to here, format the line:
412
413 if (!isDirectional) {
414
415 sprintf( writeLine,
416 "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
417 atomTypeString,
418 atomData[0],
419 atomData[1],
420 atomData[2],
421 atomData[3],
422 atomData[4],
423 atomData[5]);
424
425 strcat( writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n" );
426
427 }
428 else {
429
430 sprintf( writeLine,
431 "%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",
432 atomTypeString,
433 atomData[0],
434 atomData[1],
435 atomData[2],
436 atomData[3],
437 atomData[4],
438 atomData[5],
439 atomData[6],
440 atomData[7],
441 atomData[8],
442 atomData[9],
443 atomData[10],
444 atomData[11],
445 atomData[12]);
446
447 }
448
449 for(k = 0; k < outFile.size(); k++)
450 *outFile[k] << writeLine;
451
452 }// end for(int l =0)
453 potatoes[which_node] = myPotato;
454
455 }
456 else {
457
458 haveError = 0;
459
460 local_index = indexArray[currentIndex].first;
461
462 integrableObjects = (entry_plug->molecules[local_index]).getIntegrableObjects();
463
464 for(iter= integrableObjects.begin(); iter != integrableObjects.end(); ++iter){
465 sd = *iter;
466 atomTypeString = sd->getType();
467
468 sd->getPos(pos);
469 sd->getVel(vel);
470
471 atomData[0] = pos[0];
472 atomData[1] = pos[1];
473 atomData[2] = pos[2];
474
475 atomData[3] = vel[0];
476 atomData[4] = vel[1];
477 atomData[5] = vel[2];
478
479 isDirectional = 0;
480
481 if( sd->isDirectional() ){
482
483 isDirectional = 1;
484
485 sd->getQ( q );
486 sd->getJ( ji );
487
488 for (int j = 0; j < 6 ; j++)
489 atomData[j] = atomData[j];
490
491 atomData[6] = q[0];
492 atomData[7] = q[1];
493 atomData[8] = q[2];
494 atomData[9] = q[3];
495
496 atomData[10] = ji[0];
497 atomData[11] = ji[1];
498 atomData[12] = ji[2];
499 }
500
501 // If we've survived to here, format the line:
502
503 if (!isDirectional) {
504
505 sprintf( writeLine,
506 "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
507 atomTypeString,
508 atomData[0],
509 atomData[1],
510 atomData[2],
511 atomData[3],
512 atomData[4],
513 atomData[5]);
514
515 strcat( writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n" );
516
517 }
518 else {
519
520 sprintf( writeLine,
521 "%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",
522 atomTypeString,
523 atomData[0],
524 atomData[1],
525 atomData[2],
526 atomData[3],
527 atomData[4],
528 atomData[5],
529 atomData[6],
530 atomData[7],
531 atomData[8],
532 atomData[9],
533 atomData[10],
534 atomData[11],
535 atomData[12]);
536
537 }
538
539 for(k = 0; k < outFile.size(); k++)
540 *outFile[k] << writeLine;
541
542
543 }//end for(iter = integrableObject.begin())
544
545 currentIndex++;
546 }
547
548 }//end for(i = 0; i < mpiSim->getNmol())
549
550 for(k = 0; k < outFile.size(); k++)
551 outFile[k]->flush();
552
553 sprintf( checkPointMsg,
554 "Sucessfully took a dump.\n");
555
556 MPIcheckPoint();
557
558 delete[] potatoes;
559
560 } else {
561
562 // worldRank != 0, so I'm a remote node.
563
564 // Set my magic potato to 0:
565
566 myPotato = 0;
567 currentIndex = 0;
568
569 for (i = 0 ; i < mpiSim->getNMolGlobal(); i++ ) {
570
571 // Am I the node which has this integrableObject?
572
573 if (MolToProcMap[i] == worldRank) {
574
575
576 if (myPotato + 1 >= MAXTAG) {
577
578 // The potato was going to exceed the maximum value,
579 // so wrap this processor potato back to 0 (and block until
580 // node 0 says we can go:
581
582 MPI_Recv(&myPotato, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, &istatus);
583
584 }
585
586 local_index = indexArray[currentIndex].first;
587 integrableObjects = entry_plug->molecules[local_index].getIntegrableObjects();
588
589 nCurObj = integrableObjects.size();
590
591 MPI_Send(&nCurObj, 1, MPI_INT, 0,
592 myPotato, MPI_COMM_WORLD);
593 myPotato++;
594
595 for( iter = integrableObjects.begin(); iter != integrableObjects.end(); iter++){
596
597 if (myPotato + 2 >= MAXTAG) {
598
599 // The potato was going to exceed the maximum value,
600 // so wrap this processor potato back to 0 (and block until
601 // node 0 says we can go:
602
603 MPI_Recv(&myPotato, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, &istatus);
604
605 }
606
607 sd = *iter;
608
609 atomTypeString = sd->getType();
610
611 sd->getPos(pos);
612 sd->getVel(vel);
613
614 atomData[0] = pos[0];
615 atomData[1] = pos[1];
616 atomData[2] = pos[2];
617
618 atomData[3] = vel[0];
619 atomData[4] = vel[1];
620 atomData[5] = vel[2];
621
622 isDirectional = 0;
623
624 if( sd->isDirectional() ){
625
626 isDirectional = 1;
627
628 sd->getQ( q );
629 sd->getJ( ji );
630
631
632 atomData[6] = q[0];
633 atomData[7] = q[1];
634 atomData[8] = q[2];
635 atomData[9] = q[3];
636
637 atomData[10] = ji[0];
638 atomData[11] = ji[1];
639 atomData[12] = ji[2];
640 }
641
642
643 strncpy(MPIatomTypeString, atomTypeString, MINIBUFFERSIZE);
644
645 // null terminate the string before sending (just in case):
646 MPIatomTypeString[MINIBUFFERSIZE-1] = '\0';
647
648 MPI_Send(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR, 0,
649 myPotato, MPI_COMM_WORLD);
650
651 myPotato++;
652
653 if (isDirectional) {
654
655 MPI_Send(atomData, 13, MPI_DOUBLE, 0,
656 myPotato, MPI_COMM_WORLD);
657
658 } else {
659
660 MPI_Send(atomData, 6, MPI_DOUBLE, 0,
661 myPotato, MPI_COMM_WORLD);
662 }
663
664 myPotato++;
665
666 }
667
668 currentIndex++;
669
670 }
671
672 }
673
674 sprintf( checkPointMsg,
675 "Successfully took a dump.\n");
676 MPIcheckPoint();
677
678 }
679
680 #endif // is_mpi
681 }
682
683 #ifdef IS_MPI
684
685 // a couple of functions to let us escape the write loop
686
687 void dWrite::DieDieDie( void ){
688
689 MPI_Finalize();
690 exit (0);
691 }
692
693 #endif //is_mpi