ViewVC Help
View File | Revision Log | Show Annotations | View Changeset | Root Listing
root/group/trunk/OOPSE-1.0/libmdtools/DumpWriter.cpp
Revision: 1421
Committed: Tue Jul 27 18:44:49 2004 UTC (19 years, 11 months ago) by tim
File size: 17466 byte(s)
Log Message:
change parameter of calling sprintf

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 "mpiSimulation.hpp"
13
14 namespace dWrite{
15 void DieDieDie( void );
16 }
17
18 using namespace dWrite;
19 #endif //is_mpi
20
21 #include "ReadWrite.hpp"
22 #include "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() << endl;
353 }
354
355 currentIndex = 0;
356
357 for (i = 0 ; i < mpiSim->getNMolGlobal(); i++ ) {
358
359 // Get the Node number which has this atom;
360
361 which_node = MolToProcMap[i];
362
363 if (which_node != 0) {
364
365 if (potatoes[which_node] + 1 >= MAXTAG) {
366 // The potato was going to exceed the maximum value,
367 // so wrap this processor potato back to 0:
368
369 potatoes[which_node] = 0;
370 MPI_Send(&potatoes[which_node], 1, MPI_INT, which_node, 0, MPI_COMM_WORLD);
371
372 }
373
374 myPotato = potatoes[which_node];
375
376 //recieve the number of integrableObject in current molecule
377 MPI_Recv(&nCurObj, 1, MPI_INT, which_node,
378 myPotato, MPI_COMM_WORLD, &istatus);
379 myPotato++;
380
381 for(int l = 0; l < nCurObj; l++){
382
383 if (potatoes[which_node] + 2 >= MAXTAG) {
384 // The potato was going to exceed the maximum value,
385 // so wrap this processor potato back to 0:
386
387 potatoes[which_node] = 0;
388 MPI_Send(&potatoes[which_node], 1, MPI_INT, which_node, 0, MPI_COMM_WORLD);
389
390 }
391
392 MPI_Recv(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR, which_node,
393 myPotato, MPI_COMM_WORLD, &istatus);
394
395 atomTypeString = MPIatomTypeString;
396
397 myPotato++;
398
399 MPI_Recv(atomData, 13, MPI_DOUBLE, which_node, myPotato, MPI_COMM_WORLD, &istatus);
400 myPotato++;
401
402 MPI_Get_count(&istatus, MPI_DOUBLE, &msgLen);
403
404 if(msgLen == 13)
405 isDirectional = 1;
406 else
407 isDirectional = 0;
408
409 // If we've survived to here, format the line:
410
411 if (!isDirectional) {
412
413 sprintf( writeLine,
414 "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
415 atomTypeString,
416 atomData[0],
417 atomData[1],
418 atomData[2],
419 atomData[3],
420 atomData[4],
421 atomData[5]);
422
423 strcat( writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n" );
424
425 }
426 else {
427
428 sprintf( writeLine,
429 "%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",
430 atomTypeString,
431 atomData[0],
432 atomData[1],
433 atomData[2],
434 atomData[3],
435 atomData[4],
436 atomData[5],
437 atomData[6],
438 atomData[7],
439 atomData[8],
440 atomData[9],
441 atomData[10],
442 atomData[11],
443 atomData[12]);
444
445 }
446
447 for(k = 0; k < outFile.size(); k++)
448 *outFile[k] << writeLine;
449
450 }// end for(int l =0)
451 potatoes[which_node] = myPotato;
452
453 }
454 else {
455
456 haveError = 0;
457
458 local_index = indexArray[currentIndex].first;
459
460 integrableObjects = (entry_plug->molecules[local_index]).getIntegrableObjects();
461
462 for(iter= integrableObjects.begin(); iter != integrableObjects.end(); ++iter){
463 sd = *iter;
464 atomTypeString = sd->getType();
465
466 sd->getPos(pos);
467 sd->getVel(vel);
468
469 atomData[0] = pos[0];
470 atomData[1] = pos[1];
471 atomData[2] = pos[2];
472
473 atomData[3] = vel[0];
474 atomData[4] = vel[1];
475 atomData[5] = vel[2];
476
477 isDirectional = 0;
478
479 if( sd->isDirectional() ){
480
481 isDirectional = 1;
482
483 sd->getQ( q );
484 sd->getJ( ji );
485
486 for (int j = 0; j < 6 ; j++)
487 atomData[j] = atomData[j];
488
489 atomData[6] = q[0];
490 atomData[7] = q[1];
491 atomData[8] = q[2];
492 atomData[9] = q[3];
493
494 atomData[10] = ji[0];
495 atomData[11] = ji[1];
496 atomData[12] = ji[2];
497 }
498
499 // If we've survived to here, format the line:
500
501 if (!isDirectional) {
502
503 sprintf( writeLine,
504 "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
505 atomTypeString,
506 atomData[0],
507 atomData[1],
508 atomData[2],
509 atomData[3],
510 atomData[4],
511 atomData[5]);
512
513 strcat( writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n" );
514
515 }
516 else {
517
518 sprintf( writeLine,
519 "%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",
520 atomTypeString,
521 atomData[0],
522 atomData[1],
523 atomData[2],
524 atomData[3],
525 atomData[4],
526 atomData[5],
527 atomData[6],
528 atomData[7],
529 atomData[8],
530 atomData[9],
531 atomData[10],
532 atomData[11],
533 atomData[12]);
534
535 }
536
537 for(k = 0; k < outFile.size(); k++)
538 *outFile[k] << writeLine;
539
540
541 }//end for(iter = integrableObject.begin())
542
543 currentIndex++;
544 }
545
546 }//end for(i = 0; i < mpiSim->getNmol())
547
548 for(k = 0; k < outFile.size(); k++)
549 outFile[k]->flush();
550
551 sprintf( checkPointMsg,
552 "Sucessfully took a dump.\n");
553
554 MPIcheckPoint();
555
556 delete[] potatoes;
557
558 } else {
559
560 // worldRank != 0, so I'm a remote node.
561
562 // Set my magic potato to 0:
563
564 myPotato = 0;
565 currentIndex = 0;
566
567 for (i = 0 ; i < mpiSim->getNMolGlobal(); i++ ) {
568
569 // Am I the node which has this integrableObject?
570
571 if (MolToProcMap[i] == worldRank) {
572
573
574 if (myPotato + 1 >= MAXTAG) {
575
576 // The potato was going to exceed the maximum value,
577 // so wrap this processor potato back to 0 (and block until
578 // node 0 says we can go:
579
580 MPI_Recv(&myPotato, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, &istatus);
581
582 }
583
584 local_index = indexArray[currentIndex].first;
585 integrableObjects = entry_plug->molecules[local_index].getIntegrableObjects();
586
587 nCurObj = integrableObjects.size();
588
589 MPI_Send(&nCurObj, 1, MPI_INT, 0,
590 myPotato, MPI_COMM_WORLD);
591 myPotato++;
592
593 for( iter = integrableObjects.begin(); iter != integrableObjects.end(); iter++){
594
595 if (myPotato + 2 >= MAXTAG) {
596
597 // The potato was going to exceed the maximum value,
598 // so wrap this processor potato back to 0 (and block until
599 // node 0 says we can go:
600
601 MPI_Recv(&myPotato, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, &istatus);
602
603 }
604
605 sd = *iter;
606
607 atomTypeString = sd->getType();
608
609 sd->getPos(pos);
610 sd->getVel(vel);
611
612 atomData[0] = pos[0];
613 atomData[1] = pos[1];
614 atomData[2] = pos[2];
615
616 atomData[3] = vel[0];
617 atomData[4] = vel[1];
618 atomData[5] = vel[2];
619
620 isDirectional = 0;
621
622 if( sd->isDirectional() ){
623
624 isDirectional = 1;
625
626 sd->getQ( q );
627 sd->getJ( ji );
628
629
630 atomData[6] = q[0];
631 atomData[7] = q[1];
632 atomData[8] = q[2];
633 atomData[9] = q[3];
634
635 atomData[10] = ji[0];
636 atomData[11] = ji[1];
637 atomData[12] = ji[2];
638 }
639
640
641 strncpy(MPIatomTypeString, atomTypeString, MINIBUFFERSIZE);
642
643 // null terminate the string before sending (just in case):
644 MPIatomTypeString[MINIBUFFERSIZE-1] = '\0';
645
646 MPI_Send(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR, 0,
647 myPotato, MPI_COMM_WORLD);
648
649 myPotato++;
650
651 if (isDirectional) {
652
653 MPI_Send(atomData, 13, MPI_DOUBLE, 0,
654 myPotato, MPI_COMM_WORLD);
655
656 } else {
657
658 MPI_Send(atomData, 6, MPI_DOUBLE, 0,
659 myPotato, MPI_COMM_WORLD);
660 }
661
662 myPotato++;
663
664 }
665
666 currentIndex++;
667
668 }
669
670 }
671
672 sprintf( checkPointMsg,
673 "Sucessfully took a dump.\n");
674 MPIcheckPoint();
675
676 }
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