# | Line 62 | Line 62 | namespace oopse { | |
---|---|---|
62 | #endif | |
63 | ||
64 | namespace oopse { | |
65 | < | |
66 | < | void SimCreator::parseFile(const std::string mdFileName, MakeStamps* stamps, Globals* simParams){ |
67 | < | |
65 | > | |
66 | > | void SimCreator::parseFile(const std::string mdFileName, MakeStamps* stamps, |
67 | > | Globals* simParams){ |
68 | > | |
69 | #ifdef IS_MPI | |
70 | < | |
70 | > | |
71 | if (worldRank == 0) { | |
72 | #endif // is_mpi | |
73 | < | |
73 | > | |
74 | simParams->initalize(); | |
75 | set_interface_stamps(stamps, simParams); | |
76 | < | |
76 | > | |
77 | #ifdef IS_MPI | |
78 | < | |
78 | > | |
79 | mpiEventInit(); | |
80 | < | |
80 | > | |
81 | #endif | |
82 | < | |
82 | > | |
83 | yacc_BASS(mdFileName.c_str()); | |
84 | < | |
84 | > | |
85 | #ifdef IS_MPI | |
86 | < | |
86 | > | |
87 | throwMPIEvent(NULL); | |
88 | } else { | |
89 | set_interface_stamps(stamps, simParams); | |
# | Line 90 | Line 91 | namespace oopse { | |
91 | MPIcheckPoint(); | |
92 | mpiEventLoop(); | |
93 | } | |
94 | < | |
94 | > | |
95 | #endif | |
96 | < | |
96 | > | |
97 | } | |
98 | < | |
98 | > | |
99 | SimInfo* SimCreator::createSim(const std::string & mdFileName, bool loadInitCoords) { | |
100 | ||
101 | MakeStamps * stamps = new MakeStamps(); | |
102 | < | |
102 | > | |
103 | Globals * simParams = new Globals(); | |
104 | < | |
104 | > | |
105 | //parse meta-data file | |
106 | parseFile(mdFileName, stamps, simParams); | |
107 | < | |
107 | > | |
108 | //create the force field | |
109 | ForceField * ff = ForceFieldFactory::getInstance()->createForceField( | |
110 | simParams->getForceField()); | |
# | Line 114 | Line 115 | namespace oopse { | |
115 | painCave.isFatal = 1; | |
116 | simError(); | |
117 | } | |
118 | < | |
118 | > | |
119 | if (simParams->haveForceFieldFileName()) { | |
120 | ff->setForceFieldFileName(simParams->getForceFieldFileName()); | |
121 | } | |
122 | ||
123 | std::string forcefieldFileName; | |
124 | forcefieldFileName = ff->getForceFieldFileName(); | |
125 | < | |
125 | > | |
126 | if (simParams->haveForceFieldVariant()) { | |
127 | //If the force field has variant, the variant force field name will be | |
128 | //Base.variant.frc. For exampel EAM.u6.frc | |
129 | < | |
129 | > | |
130 | std::string variant = simParams->getForceFieldVariant(); | |
131 | < | |
131 | > | |
132 | std::string::size_type pos = forcefieldFileName.rfind(".frc"); | |
133 | variant = "." + variant; | |
134 | if (pos != std::string::npos) { | |
# | Line 143 | Line 144 | namespace oopse { | |
144 | //extract the molecule stamps | |
145 | std::vector < std::pair<MoleculeStamp *, int> > moleculeStampPairs; | |
146 | compList(stamps, simParams, moleculeStampPairs); | |
147 | < | |
147 | > | |
148 | //create SimInfo | |
149 | SimInfo * info = new SimInfo(moleculeStampPairs, ff, simParams); | |
150 | < | |
150 | > | |
151 | //gather parameters (SimCreator only retrieves part of the parameters) | |
152 | gatherParameters(info, mdFileName); | |
153 | < | |
153 | > | |
154 | //divide the molecules and determine the global index of molecules | |
155 | #ifdef IS_MPI | |
156 | divideMolecules(info); | |
157 | #endif | |
158 | < | |
158 | > | |
159 | //create the molecules | |
160 | createMolecules(info); | |
161 | < | |
162 | < | |
161 | > | |
162 | > | |
163 | //allocate memory for DataStorage(circular reference, need to break it) | |
164 | info->setSnapshotManager(new SimSnapshotManager(info)); | |
165 | ||
# | Line 166 | Line 167 | namespace oopse { | |
167 | //global index will never change again). Local indices of atoms and rigidbodies are already set by | |
168 | //MoleculeCreator class which actually delegates the responsibility to LocalIndexManager. | |
169 | setGlobalIndex(info); | |
170 | < | |
170 | > | |
171 | //Alought addExculdePairs is called inside SimInfo's addMolecule method, at that point | |
172 | //atoms don't have the global index yet (their global index are all initialized to -1). | |
173 | //Therefore we have to call addExcludePairs explicitly here. A way to work around is that | |
# | Line 177 | Line 178 | namespace oopse { | |
178 | info->addExcludePairs(mol); | |
179 | } | |
180 | ||
180 | – | |
181 | – | //load initial coordinates, some extra information are pushed into SimInfo's property map ( such as |
182 | – | //eta, chi for NPT integrator) |
181 | if (loadInitCoords) | |
182 | loadCoordinates(info); | |
183 | ||
184 | return info; | |
185 | } | |
186 | < | |
186 | > | |
187 | void SimCreator::gatherParameters(SimInfo *info, const std::string& mdfile) { | |
188 | < | |
188 | > | |
189 | //figure out the ouput file names | |
190 | std::string prefix; | |
191 | < | |
191 | > | |
192 | #ifdef IS_MPI | |
193 | < | |
193 | > | |
194 | if (worldRank == 0) { | |
195 | #endif // is_mpi | |
196 | Globals * simParams = info->getSimParams(); | |
# | Line 201 | Line 199 | namespace oopse { | |
199 | } else { | |
200 | prefix = getPrefix(mdfile); | |
201 | } | |
202 | < | |
202 | > | |
203 | info->setFinalConfigFileName(prefix + ".eor"); | |
204 | info->setDumpFileName(prefix + ".dump"); | |
205 | info->setStatFileName(prefix + ".stat"); | |
206 | < | |
206 | > | info->setRestFileName(prefix + ".zang"); |
207 | > | |
208 | #ifdef IS_MPI | |
209 | < | |
209 | > | |
210 | } | |
211 | < | |
211 | > | |
212 | #endif | |
213 | < | |
213 | > | |
214 | } | |
215 | < | |
215 | > | |
216 | #ifdef IS_MPI | |
217 | void SimCreator::divideMolecules(SimInfo *info) { | |
218 | double numerator; | |
# | Line 237 | Line 236 | namespace oopse { | |
236 | std::vector<int> molToProcMap(nGlobalMols, -1); // default to an error condition: | |
237 | ||
238 | MPI_Comm_size(MPI_COMM_WORLD, &nProcessors); | |
239 | < | |
239 | > | |
240 | if (nProcessors > nGlobalMols) { | |
241 | sprintf(painCave.errMsg, | |
242 | "nProcessors (%d) > nMol (%d)\n" | |
# | Line 246 | Line 245 | namespace oopse { | |
245 | "\tusable division of atoms for force decomposition.\n" | |
246 | "\tEither try a smaller number of processors, or run the\n" | |
247 | "\tsingle-processor version of OOPSE.\n", nProcessors, nGlobalMols); | |
248 | < | |
248 | > | |
249 | painCave.isFatal = 1; | |
250 | simError(); | |
251 | } | |
252 | < | |
252 | > | |
253 | int seedValue; | |
254 | Globals * simParams = info->getSimParams(); | |
255 | SeqRandNumGen* myRandom; //divide labor does not need Parallel random number generator | |
# | Line 260 | Line 259 | namespace oopse { | |
259 | }else { | |
260 | myRandom = new SeqRandNumGen(); | |
261 | } | |
262 | < | |
263 | < | |
262 | > | |
263 | > | |
264 | a = 3.0 * nGlobalMols / info->getNGlobalAtoms(); | |
265 | < | |
265 | > | |
266 | //initialize atomsPerProc | |
267 | atomsPerProc.insert(atomsPerProc.end(), nProcessors, 0); | |
268 | < | |
268 | > | |
269 | if (worldRank == 0) { | |
270 | numerator = info->getNGlobalAtoms(); | |
271 | denominator = nProcessors; | |
272 | precast = numerator / denominator; | |
273 | nTarget = (int)(precast + 0.5); | |
274 | < | |
274 | > | |
275 | for(i = 0; i < nGlobalMols; i++) { | |
276 | done = 0; | |
277 | loops = 0; | |
278 | < | |
278 | > | |
279 | while (!done) { | |
280 | loops++; | |
281 | < | |
281 | > | |
282 | // Pick a processor at random | |
283 | < | |
283 | > | |
284 | which_proc = (int) (myRandom->rand() * nProcessors); | |
285 | < | |
285 | > | |
286 | //get the molecule stamp first | |
287 | int stampId = info->getMoleculeStampId(i); | |
288 | MoleculeStamp * moleculeStamp = info->getMoleculeStamp(stampId); | |
289 | < | |
289 | > | |
290 | // How many atoms does this processor have so far? | |
291 | old_atoms = atomsPerProc[which_proc]; | |
292 | add_atoms = moleculeStamp->getNAtoms(); | |
293 | new_atoms = old_atoms + add_atoms; | |
294 | < | |
294 | > | |
295 | // If we've been through this loop too many times, we need | |
296 | // to just give up and assign the molecule to this processor | |
297 | // and be done with it. | |
298 | < | |
298 | > | |
299 | if (loops > 100) { | |
300 | sprintf(painCave.errMsg, | |
301 | "I've tried 100 times to assign molecule %d to a " | |
302 | " processor, but can't find a good spot.\n" | |
303 | "I'm assigning it at random to processor %d.\n", | |
304 | i, which_proc); | |
305 | < | |
305 | > | |
306 | painCave.isFatal = 0; | |
307 | simError(); | |
308 | < | |
308 | > | |
309 | molToProcMap[i] = which_proc; | |
310 | atomsPerProc[which_proc] += add_atoms; | |
311 | < | |
311 | > | |
312 | done = 1; | |
313 | continue; | |
314 | } | |
315 | < | |
315 | > | |
316 | // If we can add this molecule to this processor without sending | |
317 | // it above nTarget, then go ahead and do it: | |
318 | < | |
318 | > | |
319 | if (new_atoms <= nTarget) { | |
320 | molToProcMap[i] = which_proc; | |
321 | atomsPerProc[which_proc] += add_atoms; | |
322 | < | |
322 | > | |
323 | done = 1; | |
324 | continue; | |
325 | } | |
326 | < | |
326 | > | |
327 | // The only situation left is when new_atoms > nTarget. We | |
328 | // want to accept this with some probability that dies off the | |
329 | // farther we are from nTarget | |
330 | < | |
330 | > | |
331 | // roughly: x = new_atoms - nTarget | |
332 | // Pacc(x) = exp(- a * x) | |
333 | // where a = penalty / (average atoms per molecule) | |
334 | < | |
334 | > | |
335 | x = (double)(new_atoms - nTarget); | |
336 | y = myRandom->rand(); | |
337 | < | |
337 | > | |
338 | if (y < exp(- a * x)) { | |
339 | molToProcMap[i] = which_proc; | |
340 | atomsPerProc[which_proc] += add_atoms; | |
341 | < | |
341 | > | |
342 | done = 1; | |
343 | continue; | |
344 | } else { | |
# | Line 347 | Line 346 | namespace oopse { | |
346 | } | |
347 | } | |
348 | } | |
349 | < | |
349 | > | |
350 | delete myRandom; | |
351 | < | |
351 | > | |
352 | // Spray out this nonsense to all other processors: | |
353 | < | |
353 | > | |
354 | MPI_Bcast(&molToProcMap[0], nGlobalMols, MPI_INT, 0, MPI_COMM_WORLD); | |
355 | } else { | |
356 | < | |
356 | > | |
357 | // Listen to your marching orders from processor 0: | |
358 | < | |
358 | > | |
359 | MPI_Bcast(&molToProcMap[0], nGlobalMols, MPI_INT, 0, MPI_COMM_WORLD); | |
360 | } | |
361 | < | |
361 | > | |
362 | info->setMolToProcMap(molToProcMap); | |
363 | sprintf(checkPointMsg, | |
364 | "Successfully divided the molecules among the processors.\n"); | |
365 | MPIcheckPoint(); | |
366 | } | |
367 | < | |
367 | > | |
368 | #endif | |
369 | < | |
369 | > | |
370 | void SimCreator::createMolecules(SimInfo *info) { | |
371 | MoleculeCreator molCreator; | |
372 | int stampId; | |
373 | < | |
373 | > | |
374 | for(int i = 0; i < info->getNGlobalMolecules(); i++) { | |
375 | < | |
375 | > | |
376 | #ifdef IS_MPI | |
377 | < | |
377 | > | |
378 | if (info->getMolToProc(i) == worldRank) { | |
379 | #endif | |
380 | < | |
380 | > | |
381 | stampId = info->getMoleculeStampId(i); | |
382 | Molecule * mol = molCreator.createMolecule(info->getForceField(), info->getMoleculeStamp(stampId), | |
383 | stampId, i, info->getLocalIndexManager()); | |
384 | < | |
384 | > | |
385 | info->addMolecule(mol); | |
386 | < | |
386 | > | |
387 | #ifdef IS_MPI | |
388 | < | |
388 | > | |
389 | } | |
390 | < | |
390 | > | |
391 | #endif | |
392 | < | |
392 | > | |
393 | } //end for(int i=0) | |
394 | } | |
395 | < | |
395 | > | |
396 | void SimCreator::compList(MakeStamps *stamps, Globals* simParams, | |
397 | std::vector < std::pair<MoleculeStamp *, int> > &moleculeStampPairs) { | |
398 | int i; | |
# | Line 402 | Line 401 | namespace oopse { | |
401 | MoleculeStamp * currentStamp; | |
402 | Component** the_components = simParams->getComponents(); | |
403 | int n_components = simParams->getNComponents(); | |
404 | < | |
404 | > | |
405 | if (!simParams->haveNMol()) { | |
406 | // we don't have the total number of molecules, so we assume it is | |
407 | // given in each component | |
408 | < | |
408 | > | |
409 | for(i = 0; i < n_components; i++) { | |
410 | if (!the_components[i]->haveNMol()) { | |
411 | // we have a problem | |
412 | sprintf(painCave.errMsg, | |
413 | "SimCreator Error. No global NMol or component NMol given.\n" | |
414 | "\tCannot calculate the number of atoms.\n"); | |
415 | < | |
415 | > | |
416 | painCave.isFatal = 1; | |
417 | simError(); | |
418 | } | |
419 | < | |
419 | > | |
420 | id = the_components[i]->getType(); | |
421 | < | |
421 | > | |
422 | extractedStamp = stamps->extractMolStamp(id); | |
423 | if (extractedStamp == NULL) { | |
424 | sprintf(painCave.errMsg, | |
425 | "SimCreator error: Component \"%s\" was not found in the " | |
426 | "list of declared molecules\n", id); | |
427 | < | |
427 | > | |
428 | painCave.isFatal = 1; | |
429 | simError(); | |
430 | } | |
431 | < | |
431 | > | |
432 | currentStamp = extractedStamp->getStamp(); | |
433 | < | |
434 | < | |
433 | > | |
434 | > | |
435 | moleculeStampPairs.push_back( | |
436 | std::make_pair(currentStamp, the_components[i]->getNMol())); | |
437 | } //end for (i = 0; i < n_components; i++) | |
# | Line 442 | Line 441 | namespace oopse { | |
441 | " nMols and then give molfractions in the components\n" | |
442 | "\tis not currently supported." | |
443 | " Please give nMol in the components.\n"); | |
444 | < | |
444 | > | |
445 | painCave.isFatal = 1; | |
446 | simError(); | |
447 | } | |
448 | < | |
448 | > | |
449 | #ifdef IS_MPI | |
450 | < | |
450 | > | |
451 | strcpy(checkPointMsg, "Component stamps successfully extracted\n"); | |
452 | MPIcheckPoint(); | |
453 | < | |
453 | > | |
454 | #endif // is_mpi | |
455 | < | |
455 | > | |
456 | } | |
457 | < | |
457 | > | |
458 | void SimCreator::setGlobalIndex(SimInfo *info) { | |
459 | SimInfo::MoleculeIterator mi; | |
460 | Molecule::AtomIterator ai; | |
# | Line 471 | Line 470 | namespace oopse { | |
470 | int nGlobalAtoms = info->getNGlobalAtoms(); | |
471 | ||
472 | #ifndef IS_MPI | |
473 | < | |
473 | > | |
474 | beginAtomIndex = 0; | |
475 | beginRigidBodyIndex = 0; | |
476 | beginCutoffGroupIndex = 0; | |
477 | < | |
477 | > | |
478 | #else | |
479 | < | |
479 | > | |
480 | int nproc; | |
481 | int myNode; | |
482 | < | |
482 | > | |
483 | myNode = worldRank; | |
484 | MPI_Comm_size(MPI_COMM_WORLD, &nproc); | |
485 | < | |
485 | > | |
486 | std::vector < int > tmpAtomsInProc(nproc, 0); | |
487 | std::vector < int > tmpRigidBodiesInProc(nproc, 0); | |
488 | std::vector < int > tmpCutoffGroupsInProc(nproc, 0); | |
489 | std::vector < int > NumAtomsInProc(nproc, 0); | |
490 | std::vector < int > NumRigidBodiesInProc(nproc, 0); | |
491 | std::vector < int > NumCutoffGroupsInProc(nproc, 0); | |
492 | < | |
492 | > | |
493 | tmpAtomsInProc[myNode] = info->getNAtoms(); | |
494 | tmpRigidBodiesInProc[myNode] = info->getNRigidBodies(); | |
495 | tmpCutoffGroupsInProc[myNode] = info->getNCutoffGroups(); | |
496 | < | |
496 | > | |
497 | //do MPI_ALLREDUCE to exchange the total number of atoms, rigidbodies and cutoff groups | |
498 | MPI_Allreduce(&tmpAtomsInProc[0], &NumAtomsInProc[0], nproc, MPI_INT, | |
499 | MPI_SUM, MPI_COMM_WORLD); | |
# | Line 502 | Line 501 | namespace oopse { | |
501 | MPI_INT, MPI_SUM, MPI_COMM_WORLD); | |
502 | MPI_Allreduce(&tmpCutoffGroupsInProc[0], &NumCutoffGroupsInProc[0], nproc, | |
503 | MPI_INT, MPI_SUM, MPI_COMM_WORLD); | |
504 | < | |
504 | > | |
505 | beginAtomIndex = 0; | |
506 | beginRigidBodyIndex = 0; | |
507 | beginCutoffGroupIndex = 0; | |
508 | < | |
508 | > | |
509 | for(int i = 0; i < myNode; i++) { | |
510 | beginAtomIndex += NumAtomsInProc[i]; | |
511 | beginRigidBodyIndex += NumRigidBodiesInProc[i]; | |
512 | beginCutoffGroupIndex += NumCutoffGroupsInProc[i]; | |
513 | } | |
514 | < | |
514 | > | |
515 | #endif | |
516 | < | |
516 | > | |
517 | //rigidbody's index begins right after atom's | |
518 | beginRigidBodyIndex += info->getNGlobalAtoms(); | |
519 | < | |
519 | > | |
520 | for(mol = info->beginMolecule(mi); mol != NULL; | |
521 | mol = info->nextMolecule(mi)) { | |
522 | < | |
522 | > | |
523 | //local index(index in DataStorge) of atom is important | |
524 | for(atom = mol->beginAtom(ai); atom != NULL; atom = mol->nextAtom(ai)) { | |
525 | atom->setGlobalIndex(beginAtomIndex++); | |
526 | } | |
527 | < | |
527 | > | |
528 | for(rb = mol->beginRigidBody(ri); rb != NULL; | |
529 | rb = mol->nextRigidBody(ri)) { | |
530 | rb->setGlobalIndex(beginRigidBodyIndex++); | |
531 | } | |
532 | < | |
532 | > | |
533 | //local index of cutoff group is trivial, it only depends on the order of travesing | |
534 | for(cg = mol->beginCutoffGroup(ci); cg != NULL; | |
535 | cg = mol->nextCutoffGroup(ci)) { | |
536 | cg->setGlobalIndex(beginCutoffGroupIndex++); | |
537 | } | |
538 | } | |
539 | < | |
539 | > | |
540 | //fill globalGroupMembership | |
541 | std::vector<int> globalGroupMembership(info->getNGlobalAtoms(), 0); | |
542 | for(mol = info->beginMolecule(mi); mol != NULL; mol = info->nextMolecule(mi)) { | |
543 | for (cg = mol->beginCutoffGroup(ci); cg != NULL; cg = mol->nextCutoffGroup(ci)) { | |
544 | < | |
544 | > | |
545 | for(atom = cg->beginAtom(ai); atom != NULL; atom = cg->nextAtom(ai)) { | |
546 | globalGroupMembership[atom->getGlobalIndex()] = cg->getGlobalIndex(); | |
547 | } | |
548 | < | |
548 | > | |
549 | } | |
550 | } | |
551 | < | |
551 | > | |
552 | #ifdef IS_MPI | |
553 | // Since the globalGroupMembership has been zero filled and we've only | |
554 | // poked values into the atoms we know, we can do an Allreduce | |
# | Line 563 | Line 562 | namespace oopse { | |
562 | #else | |
563 | info->setGlobalGroupMembership(globalGroupMembership); | |
564 | #endif | |
565 | < | |
565 | > | |
566 | //fill molMembership | |
567 | std::vector<int> globalMolMembership(info->getNGlobalAtoms(), 0); | |
568 | ||
569 | for(mol = info->beginMolecule(mi); mol != NULL; mol = info->nextMolecule(mi)) { | |
570 | < | |
570 | > | |
571 | for(atom = mol->beginAtom(ai); atom != NULL; atom = mol->nextAtom(ai)) { | |
572 | globalMolMembership[atom->getGlobalIndex()] = mol->getGlobalIndex(); | |
573 | } | |
574 | } | |
575 | < | |
575 | > | |
576 | #ifdef IS_MPI | |
577 | std::vector<int> tmpMolMembership(nGlobalAtoms, 0); | |
578 | < | |
578 | > | |
579 | MPI_Allreduce(&globalMolMembership[0], &tmpMolMembership[0], nGlobalAtoms, | |
580 | MPI_INT, MPI_SUM, MPI_COMM_WORLD); | |
581 | ||
# | Line 584 | Line 583 | namespace oopse { | |
583 | #else | |
584 | info->setGlobalMolMembership(globalMolMembership); | |
585 | #endif | |
586 | < | |
586 | > | |
587 | } | |
588 | < | |
588 | > | |
589 | void SimCreator::loadCoordinates(SimInfo* info) { | |
590 | Globals* simParams; | |
591 | simParams = info->getSimParams(); | |
# | Line 597 | Line 596 | namespace oopse { | |
596 | painCave.isFatal = 1;; | |
597 | simError(); | |
598 | } | |
599 | < | |
599 | > | |
600 | DumpReader reader(info, simParams->getInitialConfig()); | |
601 | int nframes = reader.getNFrames(); | |
602 | < | |
602 | > | |
603 | if (nframes > 0) { | |
604 | reader.readFrame(nframes - 1); | |
605 | } else { | |
606 | //invalid initial coordinate file | |
607 | < | sprintf(painCave.errMsg, "Initial configuration file %s should at least contain one frame\n", |
607 | > | sprintf(painCave.errMsg, |
608 | > | "Initial configuration file %s should at least contain one frame\n", |
609 | simParams->getInitialConfig()); | |
610 | painCave.isFatal = 1; | |
611 | simError(); | |
612 | } | |
613 | < | |
613 | > | |
614 | //copy the current snapshot to previous snapshot | |
615 | info->getSnapshotManager()->advance(); | |
616 | } | |
617 | < | |
617 | > | |
618 | } //end namespace oopse | |
619 | ||
620 |
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