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root/group/trunk/OOPSE/libmdtools/DumpWriter.cpp
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Comparing trunk/OOPSE/libmdtools/DumpWriter.cpp (file contents):
Revision 910 by gezelter, Thu Jan 8 18:05:37 2004 UTC vs.
Revision 952 by tim, Fri Jan 16 21:55:39 2004 UTC

# Line 3 | Line 3
3   #include <string.h>
4   #include <iostream>
5   #include <fstream>
6 + #include <algorithm>
7 + #include <utility>
8  
9   #ifdef IS_MPI
10   #include <mpi.h>
# Line 26 | Line 28 | DumpWriter::DumpWriter( SimInfo* the_entry_plug ){
28    if(worldRank == 0 ){
29   #endif // is_mpi
30  
31 <    strcpy( outName, entry_plug->sampleName );
31 >    dumpFile.open(entry_plug->sampleName, ios::out | ios::trunc );
32  
33 <    outFile.open(outName, ios::out | ios::trunc );
33 >    if( !dumpFile ){
34  
33    if( !outFile ){
34
35        sprintf( painCave.errMsg,
36                 "Could not open \"%s\" for dump output.\n",
37 <               outName);
37 >               entry_plug->sampleName);
38        painCave.isFatal = 1;
39        simError();
40      }
41  
42    //outFile.setf( ios::scientific );
43
42   #ifdef IS_MPI
43    }
44  
45 +  //sort the local atoms by global index
46 +  sortByGlobalIndex();
47 +  
48    sprintf( checkPointMsg,
49             "Sucessfully opened output file for dumping.\n");
50    MPIcheckPoint();
# Line 56 | Line 57 | DumpWriter::~DumpWriter( ){
57    if(worldRank == 0 ){
58   #endif // is_mpi
59  
60 <    outFile.close();
60 >    dumpFile.close();
61  
62   #ifdef IS_MPI
63    }
64   #endif // is_mpi
65   }
66  
67 < void DumpWriter::writeDump( double currentTime ){
67 > #ifdef IS_MPI
68  
69 <  const int BUFFERSIZE = 2000;
70 <  const int MINIBUFFERSIZE = 10;
69 > /**
70 > * A hook function to load balancing
71 > */
72  
73 <  char tempBuffer[BUFFERSIZE];
74 <  char writeLine[BUFFERSIZE];
73 > void DumpWriter::update(){
74 >  sortByGlobalIndex();          
75 > }
76 >  
77 > /**
78 > * Auxiliary sorting function
79 > */
80 >
81 > bool indexSortingCriterion(const pair<int, int>& p1, const pair<int, int>& p2){
82 >  return p1.second < p2.second;
83 > }
84  
85 <  int i;
86 < #ifdef IS_MPI
87 <  int j, which_node, done, which_atom, local_index;
88 <  double atomTransData[6];
89 <  double atomOrientData[7];
79 <  int isDirectional;
80 <  char* atomTypeString;
81 <  char MPIatomTypeString[MINIBUFFERSIZE];
82 <  int me;
83 <  int atomTypeTag;
84 <  int atomIsDirectionalTag;
85 <  int atomTransDataTag;
86 <  int atomOrientDataTag;
87 < #else //is_mpi
88 <  int nAtoms = entry_plug->n_atoms;
89 < #endif //is_mpi
90 <
91 <  double q[4];
92 <  DirectionalAtom* dAtom;
85 > /**
86 > * Sorting the local index by global index
87 > */
88 >
89 > void DumpWriter::sortByGlobalIndex(){
90    Atom** atoms = entry_plug->atoms;
91 <  double pos[3], vel[3];
91 >  
92 >  indexArray.clear();
93 >  
94 >  for(int i = 0; i < mpiSim->getMyNlocal();i++)
95 >    indexArray.push_back(make_pair(i, atoms[i]->getGlobalIndex()));
96 >  
97 >  sort(indexArray.begin(), indexArray.end(), indexSortingCriterion);    
98  
99 <  // write current frame to the eor file
99 >  //for (int i = 0; i < mpiSim->getMyNlocal(); i++) {
100 >  //  printf("node %d has global %d at local %d\n", worldRank, indexArray[i].second, indexArray[i].first);
101 >  //}
102 >    
103 > }
104  
105 <  this->writeFinal( currentTime );
105 > #endif
106  
107 < #ifndef IS_MPI
107 > void DumpWriter::writeDump(double currentTime){
108  
109 <  outFile << nAtoms << "\n";
109 >  ofstream finalOut;
110 >  vector<ofstream*> fileStreams;
111  
112 <  outFile << currentTime << ";\t"
113 <          << entry_plug->Hmat[0][0] << "\t"
114 <          << entry_plug->Hmat[1][0] << "\t"
115 <          << entry_plug->Hmat[2][0] << ";\t"
112 > #ifdef IS_MPI
113 >  if(worldRank == 0 ){
114 > #endif    
115 >    finalOut.open( entry_plug->finalName, ios::out | ios::trunc );
116 >    if( !finalOut ){
117 >      sprintf( painCave.errMsg,
118 >               "Could not open \"%s\" for final dump output.\n",
119 >               entry_plug->finalName );
120 >      painCave.isFatal = 1;
121 >      simError();
122 >    }
123 > #ifdef IS_MPI
124 >  }
125 > #endif // is_mpi
126  
127 <          << entry_plug->Hmat[0][1] << "\t"
128 <          << entry_plug->Hmat[1][1] << "\t"
111 <          << entry_plug->Hmat[2][1] << ";\t"
127 >  fileStreams.push_back(&finalOut);
128 >  fileStreams.push_back(&dumpFile);
129  
130 <          << entry_plug->Hmat[0][2] << "\t"
114 <          << entry_plug->Hmat[1][2] << "\t"
115 <          << entry_plug->Hmat[2][2] << ";";
116 <  //write out additional parameters, such as chi and eta
117 <  outFile << entry_plug->the_integrator->getAdditionalParameters();
118 <  outFile << endl;
130 >  writeFrame(fileStreams, currentTime);
131  
132 <  for( i=0; i<nAtoms; i++ ){
132 > #ifdef IS_MPI
133 >  finalOut.close();
134 > #endif
135 >        
136 > }
137  
138 <    atoms[i]->getPos(pos);
123 <    atoms[i]->getVel(vel);
138 > void DumpWriter::writeFinal(double currentTime){
139  
140 <    sprintf( tempBuffer,
141 <             "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
127 <             atoms[i]->getType(),
128 <             pos[0],
129 <             pos[1],
130 <             pos[2],
131 <             vel[0],
132 <             vel[1],
133 <             vel[2]);
134 <    strcpy( writeLine, tempBuffer );
140 >  ofstream finalOut;
141 >  vector<ofstream*> fileStreams;
142  
143 <    if( atoms[i]->isDirectional() ){
143 > #ifdef IS_MPI
144 >  if(worldRank == 0 ){
145 > #endif // is_mpi
146  
147 <      dAtom = (DirectionalAtom *)atoms[i];
139 <      dAtom->getQ( q );
147 >    finalOut.open( entry_plug->finalName, ios::out | ios::trunc );
148  
149 <      sprintf( tempBuffer,
150 <               "%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n",
151 <               q[0],
152 <               q[1],
153 <               q[2],
154 <               q[3],
147 <               dAtom->getJx(),
148 <               dAtom->getJy(),
149 <               dAtom->getJz());
150 <      strcat( writeLine, tempBuffer );
149 >    if( !finalOut ){
150 >      sprintf( painCave.errMsg,
151 >               "Could not open \"%s\" for final dump output.\n",
152 >               entry_plug->finalName );
153 >      painCave.isFatal = 1;
154 >      simError();
155      }
152    else
153      strcat( writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n" );
156  
157 <    outFile << writeLine;
157 > #ifdef IS_MPI
158    }
159 <  outFile.flush();
159 > #endif // is_mpi
160 >  
161 >  fileStreams.push_back(&finalOut);  
162 >  writeFrame(fileStreams, currentTime);
163  
164 < #else // is_mpi
164 > #ifdef IS_MPI
165 >  finalOut.close();
166 > #endif
167 >  
168 > }
169  
170 <  // first thing first, suspend fatalities.
162 <  painCave.isEventLoop = 1;
170 > void DumpWriter::writeFrame( vector<ofstream*>& outFile, double currentTime ){
171  
172 <  int myStatus; // 1 = wakeup & success; 0 = error; -1 = AllDone
173 <  int haveError;
172 >  const int BUFFERSIZE = 2000;
173 >  const int MINIBUFFERSIZE = 100;
174  
175 <  MPI_Status istatus;
176 <  int *AtomToProcMap = mpiSim->getAtomToProcMap();
175 >  char tempBuffer[BUFFERSIZE];  
176 >  char writeLine[BUFFERSIZE];
177  
178 <  // write out header and node 0's coordinates
178 >  int i, k;
179  
180 <  if( worldRank == 0 ){
181 <    outFile << mpiSim->getTotAtoms() << "\n";
180 > #ifdef IS_MPI
181 >  
182 >  /*********************************************************************
183 >   * Documentation?  You want DOCUMENTATION?
184 >   *
185 >   * Why all the potatoes below?  
186 >   *
187 >   * To make a long story short, the original version of DumpWriter
188 >   * worked in the most inefficient way possible.  Node 0 would
189 >   * poke each of the node for an individual atom's formatted data
190 >   * as node 0 worked its way down the global index. This was particularly
191 >   * inefficient since the method blocked all processors at every atom
192 >   * (and did it twice!).
193 >   *
194 >   * An intermediate version of DumpWriter could be described from Node
195 >   * zero's perspective as follows:
196 >   *
197 >   *  1) Have 100 of your friends stand in a circle.
198 >   *  2) When you say go, have all of them start tossing potatoes at
199 >   *     you (one at a time).
200 >   *  3) Catch the potatoes.
201 >   *
202 >   * It was an improvement, but MPI has buffers and caches that could
203 >   * best be described in this analogy as "potato nets", so there's no
204 >   * need to block the processors atom-by-atom.
205 >   *
206 >   * This new and improved DumpWriter works in an even more efficient
207 >   * way:
208 >   *
209 >   *  1) Have 100 of your friend stand in a circle.
210 >   *  2) When you say go, have them start tossing 5-pound bags of
211 >   *     potatoes at you.
212 >   *  3) Once you've caught a friend's bag of potatoes,
213 >   *     toss them a spud to let them know they can toss another bag.
214 >   *
215 >   * How's THAT for documentation?
216 >   *
217 >   *********************************************************************/
218  
219 <    outFile << currentTime << ";\t"
220 <            << entry_plug->Hmat[0][0] << "\t"
177 <            << entry_plug->Hmat[1][0] << "\t"
178 <            << entry_plug->Hmat[2][0] << ";\t"
219 >  int *potatoes;
220 >  int myPotato;
221  
222 <            << entry_plug->Hmat[0][1] << "\t"
223 <            << entry_plug->Hmat[1][1] << "\t"
224 <            << entry_plug->Hmat[2][1] << ";\t"
225 <
184 <            << entry_plug->Hmat[0][2] << "\t"
185 <            << entry_plug->Hmat[1][2] << "\t"
186 <            << entry_plug->Hmat[2][2] << ";";
187 <
188 <    outFile << entry_plug->the_integrator->getAdditionalParameters();
189 <    outFile << endl;
190 <    outFile.flush();
191 <    for (i = 0 ; i < mpiSim->getTotAtoms(); i++ ) {
192 <      // Get the Node number which has this atom;
193 <
194 <      which_node = AtomToProcMap[i];
195 <
196 <      if (which_node != 0) {
197 <        
198 <        atomTypeTag          = 4*i;
199 <        atomIsDirectionalTag = 4*i + 1;
200 <        atomTransDataTag     = 4*i + 2;
201 <        atomOrientDataTag    = 4*i + 3;
202 <
203 <        MPI_Recv(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR, which_node,
204 <                 atomTypeTag, MPI_COMM_WORLD, &istatus);
205 <        
206 <        strncpy(atomTypeString, MPIatomTypeString, MINIBUFFERSIZE);
207 <
208 <        MPI_Recv(&isDirectional, 1, MPI_INT, which_node,
209 <                 atomIsDirectionalTag, MPI_COMM_WORLD, &istatus);
210 <        
211 <        MPI_Recv(atomTransData, 6, MPI_DOUBLE, which_node,
212 <                 atomTransDataTag, MPI_COMM_WORLD, &istatus);
213 <
214 <        if (isDirectional) {
215 <
216 <          MPI_Recv(atomOrientData, 7, MPI_DOUBLE, which_node,
217 <                   atomOrientDataTag, MPI_COMM_WORLD, &istatus);
218 <
219 <        }
220 <
221 <      } else {
222 <        
223 <        haveError = 0;
224 <        which_atom = i;
225 <        local_index=-1;
226 <
227 <        for (j=0; (j<mpiSim->getMyNlocal()) && (local_index < 0); j++) {
228 <          if (atoms[j]->getGlobalIndex() == which_atom) local_index = j;
229 <        }
230 <
231 <        if (local_index != -1) {
232 <
233 <          atomTypeString = atoms[local_index]->getType();
234 <
235 <          atoms[local_index]->getPos(pos);
236 <          atoms[local_index]->getVel(vel);
237 <
238 <          atomTransData[0] = pos[0];
239 <          atomTransData[1] = pos[1];
240 <          atomTransData[2] = pos[2];
241 <
242 <          atomTransData[3] = vel[0];
243 <          atomTransData[4] = vel[1];
244 <          atomTransData[5] = vel[2];
245 <          
246 <          isDirectional = 0;
247 <
248 <          if( atoms[local_index]->isDirectional() ){
249 <
250 <            isDirectional = 1;
251 <            
252 <            dAtom = (DirectionalAtom *)atoms[local_index];
253 <            dAtom->getQ( q );
254 <            
255 <            atomOrientData[0] = q[0];
256 <            atomOrientData[1] = q[1];
257 <            atomOrientData[2] = q[2];
258 <            atomOrientData[3] = q[3];
259 <
260 <            atomOrientData[4] = dAtom->getJx();
261 <            atomOrientData[5] = dAtom->getJy();
262 <            atomOrientData[6] = dAtom->getJz();
263 <          }
264 <
265 <        } else {
266 <          sprintf(painCave.errMsg,
267 <                  "Atom %d not found on processor %d\n",
268 <                  i, worldRank );
269 <          haveError= 1;
270 <          simError();
271 <        }
272 <
273 <        if(haveError) DieDieDie();
274 <                              
275 <        // If we've survived to here, format the line:
276 <        
277 <        sprintf( tempBuffer,
278 <                 "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
279 <                 atomTypeString,
280 <                 atomTransData[0],
281 <                 atomTransData[1],
282 <                 atomTransData[2],
283 <                 atomTransData[3],
284 <                 atomTransData[4],
285 <                 atomTransData[5]);
286 <
287 <        strcpy( writeLine, tempBuffer );
288 <
289 <        if (isDirectional) {
290 <
291 <          sprintf( tempBuffer,
292 <                   "%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n",
293 <                   atomOrientData[0],
294 <                   atomOrientData[1],
295 <                   atomOrientData[2],
296 <                   atomOrientData[3],
297 <                   atomOrientData[4],
298 <                   atomOrientData[5],
299 <                   atomOrientData[6]);
300 <          strcat( writeLine, tempBuffer );
301 <
302 <        } else {
303 <          strcat( writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n" );
304 <        }
305 <
306 <        outFile << writeLine;
307 <        outFile.flush();
308 <      }
309 <    }
310 <
311 <    outFile.flush();
312 <    sprintf( checkPointMsg,
313 <             "Sucessfully took a dump.\n");
314 <    MPIcheckPoint();        
315 <    
316 <  } else {
317 <
318 <    // worldRank != 0, so I'm a remote node.  
319 <    
320 <    for (i = 0 ; i < mpiSim->getTotAtoms(); i++ ) {
321 <      
322 <      // Am I the node which has this atom?
323 <      
324 <      if (AtomToProcMap[i] == worldRank) {
325 <
326 <        local_index=-1;
327 <        for (j=0; (j<mpiSim->getMyNlocal()) && (local_index < 0); j++) {
328 <          if (atoms[j]->getGlobalIndex() == which_atom) local_index = j;
329 <        }
330 <        if (local_index != -1) {
331 <        
332 <          atomTypeString = atoms[local_index]->getType();
333 <
334 <          atoms[local_index]->getPos(pos);
335 <          atoms[local_index]->getVel(vel);
336 <
337 <          atomTransData[0] = pos[0];
338 <          atomTransData[1] = pos[1];
339 <          atomTransData[2] = pos[2];
340 <
341 <          atomTransData[3] = vel[0];
342 <          atomTransData[4] = vel[1];
343 <          atomTransData[5] = vel[2];
344 <          
345 <          isDirectional = 0;
346 <
347 <          if( atoms[local_index]->isDirectional() ){
348 <
349 <            isDirectional = 1;
350 <            
351 <            dAtom = (DirectionalAtom *)atoms[local_index];
352 <            dAtom->getQ( q );
353 <            
354 <            atomOrientData[0] = q[0];
355 <            atomOrientData[1] = q[1];
356 <            atomOrientData[2] = q[2];
357 <            atomOrientData[3] = q[3];
358 <
359 <            atomOrientData[4] = dAtom->getJx();
360 <            atomOrientData[5] = dAtom->getJy();
361 <            atomOrientData[6] = dAtom->getJz();
362 <          }
363 <
364 <        } else {
365 <          sprintf(painCave.errMsg,
366 <                  "Atom %d not found on processor %d\n",
367 <                  i, worldRank );
368 <          haveError= 1;
369 <          simError();
370 <        }
371 <
372 <        // I've survived this far, so send off the data!
373 <
374 <        atomTypeTag          = 4*i;
375 <        atomIsDirectionalTag = 4*i + 1;
376 <        atomTransDataTag     = 4*i + 2;
377 <        atomOrientDataTag    = 4*i + 3;
378 <
379 <
380 <        strncpy(MPIatomTypeString, atomTypeString, MINIBUFFERSIZE);
381 <
382 <        MPI_Send(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR, 0,
383 <                 atomTypeTag, MPI_COMM_WORLD);
384 <        
385 <        MPI_Send(&isDirectional, 1, MPI_INT, 0,
386 <                 atomIsDirectionalTag, MPI_COMM_WORLD);
387 <        
388 <        MPI_Send(atomTransData, 6, MPI_DOUBLE, 0,
389 <                 atomTransDataTag, MPI_COMM_WORLD);
390 <
391 <        if (isDirectional) {
392 <
393 <          MPI_Send(atomOrientData, 7, MPI_DOUBLE, 0,
394 <                   atomOrientDataTag, MPI_COMM_WORLD);
395 <          
396 <        }
397 <      
398 <      }
399 <    }
400 <
401 <    sprintf( checkPointMsg,
402 <             "Sucessfully took a dump.\n");
403 <    MPIcheckPoint();        
404 <    
405 <  }
406 <  
407 <  painCave.isEventLoop = 0;
408 <
409 < #endif // is_mpi
410 < }
411 <
412 < void DumpWriter::writeFinal(double finalTime){
413 <
414 <  char finalName[500];
415 <  ofstream finalOut;
416 <
417 <  const int BUFFERSIZE = 2000;
418 <  const int MINIBUFFERSIZE = 10;
419 <  char tempBuffer[BUFFERSIZE];
420 <  char writeLine[BUFFERSIZE];
421 <
422 <  double q[4];
423 <  DirectionalAtom* dAtom;
424 <  Atom** atoms = entry_plug->atoms;
425 <  int i;
426 < #ifdef IS_MPI
427 <  int j, which_node, done, which_atom, local_index;
428 <  double atomTransData[6];
429 <  double atomOrientData[7];
222 >  int nProc;
223 >  int j, which_node, done, which_atom, local_index, currentIndex;
224 >  double atomData6[6];
225 >  double atomData13[13];
226    int isDirectional;
227    char* atomTypeString;
228    char MPIatomTypeString[MINIBUFFERSIZE];
229 <  int atomTypeTag;
434 <  int atomIsDirectionalTag;
435 <  int atomTransDataTag;
436 <  int atomOrientDataTag;
229 >
230   #else //is_mpi
231    int nAtoms = entry_plug->n_atoms;
232   #endif //is_mpi
233  
234 +  double q[4];
235 +  DirectionalAtom* dAtom;
236 +  Atom** atoms = entry_plug->atoms;
237    double pos[3], vel[3];
238  
443 #ifdef IS_MPI
444  if(worldRank == 0 ){
445 #endif // is_mpi
446
447    strcpy( finalName, entry_plug->finalName );
448
449    finalOut.open( finalName, ios::out | ios::trunc );
450    if( !finalOut ){
451      sprintf( painCave.errMsg,
452               "Could not open \"%s\" for final dump output.\n",
453               finalName );
454      painCave.isFatal = 1;
455      simError();
456    }
457
458    // finalOut.setf( ios::scientific );
459
460 #ifdef IS_MPI
461  }
462
463  sprintf(checkPointMsg,"Opened file for final configuration\n");
464  MPIcheckPoint();
465
466 #endif //is_mpi
467
468
239   #ifndef IS_MPI
240 +  
241 +  for(k = 0; k < outFile.size(); k++){
242 +    *outFile[k] << nAtoms << "\n";
243  
244 <  finalOut << nAtoms << "\n";
244 >    *outFile[k] << currentTime << ";\t"
245 >               << entry_plug->Hmat[0][0] << "\t"
246 >                     << entry_plug->Hmat[1][0] << "\t"
247 >                     << entry_plug->Hmat[2][0] << ";\t"
248 >              
249 >               << entry_plug->Hmat[0][1] << "\t"
250 >                     << entry_plug->Hmat[1][1] << "\t"
251 >                     << entry_plug->Hmat[2][1] << ";\t"
252  
253 <  finalOut << finalTime << ";\t"
254 <           << entry_plug->Hmat[0][0] << "\t"
255 <           << entry_plug->Hmat[1][0] << "\t"
476 <           << entry_plug->Hmat[2][0] << ";\t"
253 >                     << entry_plug->Hmat[0][2] << "\t"
254 >                     << entry_plug->Hmat[1][2] << "\t"
255 >                     << entry_plug->Hmat[2][2] << ";";
256  
257 <           << entry_plug->Hmat[0][1] << "\t"
258 <           << entry_plug->Hmat[1][1] << "\t"
259 <           << entry_plug->Hmat[2][1] << ";\t"
260 <
482 <           << entry_plug->Hmat[0][2] << "\t"
483 <           << entry_plug->Hmat[1][2] << "\t"
484 <           << entry_plug->Hmat[2][2] << ";";
485 <
486 <  //write out additional parameters, such as chi and eta
487 <  finalOut << entry_plug->the_integrator->getAdditionalParameters();
488 <  finalOut << endl;
489 <
257 >    //write out additional parameters, such as chi and eta
258 >    *outFile[k] << entry_plug->the_integrator->getAdditionalParameters() << endl;
259 >  }
260 >  
261    for( i=0; i<nAtoms; i++ ){
262  
263      atoms[i]->getPos(pos);
# Line 522 | Line 293 | void DumpWriter::writeFinal(double finalTime){
293      else
294        strcat( writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n" );
295  
296 <    finalOut << writeLine;
296 >    for(k = 0; k < outFile.size(); k++)
297 >      *outFile[k] << writeLine;
298    }
527  finalOut.flush();
528  finalOut.close();
299  
300   #else // is_mpi
301  
302 <  // first thing first, suspend fatalities.
303 <  painCave.isEventLoop = 1;
302 >  /* code to find maximum tag value */
303 >  
304 >  int *tagub, flag, MAXTAG;
305 >  MPI_Attr_get(MPI_COMM_WORLD, MPI_TAG_UB, &tagub, &flag);
306 >  if (flag) {
307 >    MAXTAG = *tagub;
308 >  } else {
309 >    MAXTAG = 32767;
310 >  }  
311  
535  int myStatus; // 1 = wakeup & success; 0 = error; -1 = AllDone
312    int haveError;
313  
314    MPI_Status istatus;
# Line 541 | Line 317 | void DumpWriter::writeFinal(double finalTime){
317    // write out header and node 0's coordinates
318  
319    if( worldRank == 0 ){
544    finalOut << mpiSim->getTotAtoms() << "\n";
320  
321 <    finalOut << finalTime << ";\t"
547 <            << entry_plug->Hmat[0][0] << "\t"
548 <            << entry_plug->Hmat[1][0] << "\t"
549 <            << entry_plug->Hmat[2][0] << ";\t"
321 >    // Node 0 needs a list of the magic potatoes for each processor;
322  
323 <            << entry_plug->Hmat[0][1] << "\t"
324 <            << entry_plug->Hmat[1][1] << "\t"
553 <            << entry_plug->Hmat[2][1] << ";\t"
323 >    nProc = mpiSim->getNumberProcessors();
324 >    potatoes = new int[nProc];
325  
326 <            << entry_plug->Hmat[0][2] << "\t"
327 <            << entry_plug->Hmat[1][2] << "\t"
328 <            << entry_plug->Hmat[2][2] << ";";
326 >    //write out the comment lines
327 >    for (i = 0; i < nProc; i++)
328 >      potatoes[i] = 0;
329 >    
330 >      for(k = 0; k < outFile.size(); k++){
331 >        *outFile[k] << mpiSim->getTotAtoms() << "\n";
332  
333 <    finalOut << entry_plug->the_integrator->getAdditionalParameters();
334 <    finalOut << endl;
335 <    finalOut.flush();
333 >        *outFile[k] << currentTime << ";\t"
334 >                         << entry_plug->Hmat[0][0] << "\t"
335 >                         << entry_plug->Hmat[1][0] << "\t"
336 >                         << entry_plug->Hmat[2][0] << ";\t"
337 >
338 >                         << entry_plug->Hmat[0][1] << "\t"
339 >                         << entry_plug->Hmat[1][1] << "\t"
340 >                         << entry_plug->Hmat[2][1] << ";\t"
341 >
342 >                         << entry_plug->Hmat[0][2] << "\t"
343 >                         << entry_plug->Hmat[1][2] << "\t"
344 >                         << entry_plug->Hmat[2][2] << ";";
345 >  
346 >        *outFile[k] << entry_plug->the_integrator->getAdditionalParameters() << endl;
347 >    }
348 >
349 >    currentIndex = 0;
350 >
351      for (i = 0 ; i < mpiSim->getTotAtoms(); i++ ) {
352 +      
353        // Get the Node number which has this atom;
354 <
354 >      
355        which_node = AtomToProcMap[i];
356 <
356 >      
357        if (which_node != 0) {
568        
569        atomTypeTag          = 4*i;
570        atomIsDirectionalTag = 4*i + 1;
571        atomTransDataTag     = 4*i + 2;
572        atomOrientDataTag    = 4*i + 3;
358  
359 +        if (potatoes[which_node] + 3 >= MAXTAG) {
360 +          // The potato was going to exceed the maximum value,
361 +          // so wrap this processor potato back to 0:        
362 +
363 +          potatoes[which_node] = 0;          
364 +          MPI_Send(0, 1, MPI_INT, which_node, 0, MPI_COMM_WORLD);
365 +          
366 +        }
367 +
368 +        myPotato = potatoes[which_node];        
369 +        
370          MPI_Recv(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR, which_node,
371 <                 atomTypeTag, MPI_COMM_WORLD, &istatus);
371 >                 myPotato, MPI_COMM_WORLD, &istatus);
372          
373 <        strncpy(atomTypeString, MPIatomTypeString, MINIBUFFERSIZE);
373 >        atomTypeString = MPIatomTypeString;
374 >        
375 >        myPotato++;
376  
377          MPI_Recv(&isDirectional, 1, MPI_INT, which_node,
378 <                 atomIsDirectionalTag, MPI_COMM_WORLD, &istatus);
379 <        
380 <        MPI_Recv(atomTransData, 6, MPI_DOUBLE, which_node,
583 <                 atomTransDataTag, MPI_COMM_WORLD, &istatus);
378 >                 myPotato, MPI_COMM_WORLD, &istatus);
379 >              
380 >        myPotato++;
381  
382 <        if (isDirectional) {
383 <
384 <          MPI_Recv(atomOrientData, 7, MPI_DOUBLE, which_node,
385 <                   atomOrientDataTag, MPI_COMM_WORLD, &istatus);
386 <
382 >        if (isDirectional) {          
383 >          MPI_Recv(atomData13, 13, MPI_DOUBLE, which_node,
384 >                   myPotato, MPI_COMM_WORLD, &istatus);
385 >        } else {
386 >          MPI_Recv(atomData6, 6, MPI_DOUBLE, which_node,
387 >                   myPotato, MPI_COMM_WORLD, &istatus);          
388          }
389 +        
390 +        myPotato++;
391 +        potatoes[which_node] = myPotato;
392  
393        } else {
394          
395 <        haveError = 0;
395 >        haveError = 0;
396          which_atom = i;
397 <        local_index=-1;
397 >        
398 >        //local_index = -1;
399  
400 <        for (j=0; (j<mpiSim->getMyNlocal()) && (local_index < 0); j++) {
401 <          if (atoms[j]->getGlobalIndex() == which_atom) local_index = j;
402 <        }
403 <
404 <        if (local_index != -1) {
405 <
406 <          atomTypeString = atoms[local_index]->getType();
407 <
400 >        //for (j=0; (j<mpiSim->getMyNlocal()) && (local_index < 0); j++) {
401 >        //  if (atoms[j]->getGlobalIndex() == which_atom) local_index = j;
402 >        //}
403 >        
404 >        //if (local_index != -1) {
405 >          
406 >          local_index = indexArray[currentIndex].first;        
407 >          
408 >          if (which_atom == indexArray[currentIndex].second) {
409 >            
410 >            atomTypeString = atoms[local_index]->getType();
411 >            
412            atoms[local_index]->getPos(pos);
413 <          atoms[local_index]->getVel(vel);
413 >          atoms[local_index]->getVel(vel);          
414 >          
415 >          atomData6[0] = pos[0];
416 >          atomData6[1] = pos[1];
417 >          atomData6[2] = pos[2];
418  
419 <          atomTransData[0] = pos[0];
420 <          atomTransData[1] = pos[1];
421 <          atomTransData[2] = pos[2];
612 <
613 <          atomTransData[3] = vel[0];
614 <          atomTransData[4] = vel[1];
615 <          atomTransData[5] = vel[2];
419 >          atomData6[3] = vel[0];
420 >          atomData6[4] = vel[1];
421 >          atomData6[5] = vel[2];
422            
423            isDirectional = 0;
424  
# Line 622 | Line 428 | void DumpWriter::writeFinal(double finalTime){
428              
429              dAtom = (DirectionalAtom *)atoms[local_index];
430              dAtom->getQ( q );
625            
626            atomOrientData[0] = q[0];
627            atomOrientData[1] = q[1];
628            atomOrientData[2] = q[2];
629            atomOrientData[3] = q[3];
431  
432 <            atomOrientData[4] = dAtom->getJx();
433 <            atomOrientData[5] = dAtom->getJy();
434 <            atomOrientData[6] = dAtom->getJz();
432 >            for (int j = 0; j < 6 ; j++)
433 >              atomData13[j] = atomData6[j];            
434 >            
435 >            atomData13[6] = q[0];
436 >            atomData13[7] = q[1];
437 >            atomData13[8] = q[2];
438 >            atomData13[9] = q[3];
439 >            
440 >            atomData13[10] = dAtom->getJx();
441 >            atomData13[11] = dAtom->getJy();
442 >            atomData13[12] = dAtom->getJz();
443            }
444 <
444 >          
445          } else {
446            sprintf(painCave.errMsg,
447 <                  "Atom %d not found on processor %d\n",
448 <                  i, worldRank );
447 >                  "Atom %d not found on processor %d, currentIndex = %d, local_index = %d\n",
448 >                  which_atom, worldRank, currentIndex, local_index );
449            haveError= 1;
450            simError();
451          }
643
644        if(haveError) DieDieDie();
645                              
646        // If we've survived to here, format the line:
452          
453 <        sprintf( tempBuffer,
454 <                 "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
455 <                 atomTypeString,
651 <                 atomTransData[0],
652 <                 atomTransData[1],
653 <                 atomTransData[2],
654 <                 atomTransData[3],
655 <                 atomTransData[4],
656 <                 atomTransData[5]);
657 <
658 <        strcpy( writeLine, tempBuffer );
659 <
660 <        if (isDirectional) {
661 <
662 <          sprintf( tempBuffer,
663 <                   "%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\n",
664 <                   atomOrientData[0],
665 <                   atomOrientData[1],
666 <                   atomOrientData[2],
667 <                   atomOrientData[3],
668 <                   atomOrientData[4],
669 <                   atomOrientData[5],
670 <                   atomOrientData[6]);
671 <          strcat( writeLine, tempBuffer );
672 <
673 <        } else {
674 <          strcat( writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n" );
675 <        }
676 <
677 <        finalOut << writeLine;
678 <        finalOut.flush();
453 >        if(haveError) DieDieDie();
454 >        
455 >        currentIndex++;
456        }
457 +      // If we've survived to here, format the line:
458 +      
459 +      if (!isDirectional) {
460 +        
461 +        sprintf( writeLine,
462 +                 "%s\t%lf\t%lf\t%lf\t%lf\t%lf\t%lf\t",
463 +                 atomTypeString,
464 +                 atomData6[0],
465 +                 atomData6[1],
466 +                 atomData6[2],
467 +                 atomData6[3],
468 +                 atomData6[4],
469 +                 atomData6[5]);
470 +        
471 +        strcat( writeLine, "0.0\t0.0\t0.0\t0.0\t0.0\t0.0\t0.0\n" );
472 +        
473 +      } else {
474 +        
475 +        sprintf( writeLine,
476 +                 "%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",
477 +                 atomTypeString,
478 +                 atomData13[0],
479 +                 atomData13[1],
480 +                 atomData13[2],
481 +                 atomData13[3],
482 +                 atomData13[4],
483 +                 atomData13[5],
484 +                 atomData13[6],
485 +                 atomData13[7],
486 +                 atomData13[8],
487 +                 atomData13[9],
488 +                 atomData13[10],
489 +                 atomData13[11],
490 +                 atomData13[12]);
491 +        
492 +      }
493 +      
494 +      for(k = 0; k < outFile.size(); k++)
495 +        *outFile[k] << writeLine;
496      }
497 <
498 <    finalOut.flush();
497 >    
498 >    for(k = 0; k < outFile.size(); k++)
499 >      outFile[k]->flush();
500 >    
501      sprintf( checkPointMsg,
502               "Sucessfully took a dump.\n");
503 +    
504      MPIcheckPoint();        
505      
506 +    delete[] potatoes;
507 +    
508    } else {
509  
510      // worldRank != 0, so I'm a remote node.  
511 +
512 +    // Set my magic potato to 0:
513 +
514 +    myPotato = 0;
515 +    currentIndex = 0;
516      
517      for (i = 0 ; i < mpiSim->getTotAtoms(); i++ ) {
518        
# Line 694 | Line 520 | void DumpWriter::writeFinal(double finalTime){
520        
521        if (AtomToProcMap[i] == worldRank) {
522  
523 <        local_index=-1;
524 <        for (j=0; (j<mpiSim->getMyNlocal()) && (local_index < 0); j++) {
525 <          if (atoms[j]->getGlobalIndex() == which_atom) local_index = j;
523 >        if (myPotato + 3 >= MAXTAG) {
524 >          
525 >          // The potato was going to exceed the maximum value,
526 >          // so wrap this processor potato back to 0 (and block until
527 >          // node 0 says we can go:
528 >          
529 >          MPI_Recv(&myPotato, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, &istatus);
530 >          
531          }
532 <        if (local_index != -1) {
532 >        which_atom = i;
533 >
534 >        //local_index = -1;
535 >
536 >        //for (j=0; (j<mpiSim->getMyNlocal()) && (local_index < 0); j++) {
537 >        // if (atoms[j]->getGlobalIndex() == which_atom) local_index = j;
538 >        //}
539 >        
540 >        //if (local_index != -1) {
541 >
542 >        local_index = indexArray[currentIndex].first;        
543 >                
544 >        if (which_atom == indexArray[currentIndex].second) {
545          
546            atomTypeString = atoms[local_index]->getType();
547 <
547 >          
548            atoms[local_index]->getPos(pos);
549            atoms[local_index]->getVel(vel);
550 +          
551 +          atomData6[0] = pos[0];
552 +          atomData6[1] = pos[1];
553 +          atomData6[2] = pos[2];
554  
555 <          atomTransData[0] = pos[0];
556 <          atomTransData[1] = pos[1];
557 <          atomTransData[2] = pos[2];
711 <
712 <          atomTransData[3] = vel[0];
713 <          atomTransData[4] = vel[1];
714 <          atomTransData[5] = vel[2];
555 >          atomData6[3] = vel[0];
556 >          atomData6[4] = vel[1];
557 >          atomData6[5] = vel[2];
558            
559            isDirectional = 0;
560  
# Line 722 | Line 565 | void DumpWriter::writeFinal(double finalTime){
565              dAtom = (DirectionalAtom *)atoms[local_index];
566              dAtom->getQ( q );
567              
568 <            atomOrientData[0] = q[0];
569 <            atomOrientData[1] = q[1];
570 <            atomOrientData[2] = q[2];
571 <            atomOrientData[3] = q[3];
572 <
573 <            atomOrientData[4] = dAtom->getJx();
574 <            atomOrientData[5] = dAtom->getJy();
575 <            atomOrientData[6] = dAtom->getJz();
568 >            for (int j = 0; j < 6 ; j++)
569 >              atomData13[j] = atomData6[j];
570 >            
571 >            atomData13[6] = q[0];
572 >            atomData13[7] = q[1];
573 >            atomData13[8] = q[2];
574 >            atomData13[9] = q[3];
575 >  
576 >            atomData13[10] = dAtom->getJx();
577 >            atomData13[11] = dAtom->getJy();
578 >            atomData13[12] = dAtom->getJz();
579            }
580  
581          } else {
582            sprintf(painCave.errMsg,
583 <                  "Atom %d not found on processor %d\n",
584 <                  i, worldRank );
583 >                  "Atom %d not found on processor %d, currentIndex = %d, local_index = %d\n",
584 >                  which_atom, worldRank, currentIndex, local_index );
585            haveError= 1;
586            simError();
587          }
588 <
743 <        // I've survived this far, so send off the data!
744 <
745 <        atomTypeTag          = 4*i;
746 <        atomIsDirectionalTag = 4*i + 1;
747 <        atomTransDataTag     = 4*i + 2;
748 <        atomOrientDataTag    = 4*i + 3;
749 <
588 >        
589          strncpy(MPIatomTypeString, atomTypeString, MINIBUFFERSIZE);
590  
591 +        // null terminate the string before sending (just in case):
592 +        MPIatomTypeString[MINIBUFFERSIZE-1] = '\0';
593 +
594          MPI_Send(MPIatomTypeString, MINIBUFFERSIZE, MPI_CHAR, 0,
595 <                 atomTypeTag, MPI_COMM_WORLD);
595 >                             myPotato, MPI_COMM_WORLD);
596          
597 +        myPotato++;
598 +
599          MPI_Send(&isDirectional, 1, MPI_INT, 0,
600 <                 atomIsDirectionalTag, MPI_COMM_WORLD);
600 >                             myPotato, MPI_COMM_WORLD);
601          
602 <        MPI_Send(atomTransData, 6, MPI_DOUBLE, 0,
603 <                 atomTransDataTag, MPI_COMM_WORLD);
760 <
602 >        myPotato++;
603 >        
604          if (isDirectional) {
605  
606 <          MPI_Send(atomOrientData, 7, MPI_DOUBLE, 0,
607 <                   atomOrientDataTag, MPI_COMM_WORLD);
606 >          MPI_Send(atomData13, 13, MPI_DOUBLE, 0,
607 >                   myPotato, MPI_COMM_WORLD);
608            
609 +        } else {
610 +
611 +          MPI_Send(atomData6, 6, MPI_DOUBLE, 0,
612 +                   myPotato, MPI_COMM_WORLD);
613          }
614 <      
614 >
615 >        myPotato++;  
616 >        currentIndex++;    
617        }
618      }
619  
620      sprintf( checkPointMsg,
621 <             "Sucessfully wrote final file.\n");
621 >             "Sucessfully took a dump.\n");
622      MPIcheckPoint();        
623      
624 <  }
624 >  }
625    
777  painCave.isEventLoop = 0;
778
779  if( worldRank == 0 ) finalOut.close();
626   #endif // is_mpi
627   }
628  
783
784
629   #ifdef IS_MPI
630  
631   // a couple of functions to let us escape the write loop

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