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root/group/trunk/OOPSE-2.0/src/brains/SimCreator.cpp
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Comparing trunk/OOPSE-2.0/src/brains/SimCreator.cpp (file contents):
Revision 1969 by tim, Fri Feb 4 05:26:30 2005 UTC vs.
Revision 2187 by tim, Wed Apr 13 18:41:17 2005 UTC

# Line 1 | Line 1
1 < /*
1 > /*
2   * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3   *
4   * The University of Notre Dame grants you ("Licensee") a
# Line 47 | Line 47
47   * @version 1.0
48   */
49  
50 #include <sprng.h>
51
50   #include "brains/MoleculeCreator.hpp"
51   #include "brains/SimCreator.hpp"
52   #include "brains/SimSnapshotManager.hpp"
# Line 57 | Line 55
55   #include "UseTheForce/ForceFieldFactory.hpp"
56   #include "utils/simError.h"
57   #include "utils/StringUtils.hpp"
58 + #include "math/SeqRandNumGen.hpp"
59   #ifdef IS_MPI
60   #include "io/mpiBASS.h"
61 < #include "math/randomSPRNG.hpp"
61 > #include "math/ParallelRandNumGen.hpp"
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 <
74 <        simParams->initalize();
75 <        set_interface_stamps(stamps, simParams);
76 <
73 >      
74 >      simParams->initalize();
75 >      set_interface_stamps(stamps, simParams);
76 >      
77   #ifdef IS_MPI
78 <
79 <        mpiEventInit();
80 <
78 >      
79 >      mpiEventInit();
80 >      
81   #endif
82 <
83 <        yacc_BASS(mdFileName.c_str());
84 <
82 >      
83 >      yacc_BASS(mdFileName.c_str());
84 >      
85   #ifdef IS_MPI
86 <
87 <        throwMPIEvent(NULL);
86 >      
87 >      throwMPIEvent(NULL);
88      } else {
89 <        set_interface_stamps(stamps, simParams);
90 <        mpiEventInit();
91 <        MPIcheckPoint();
92 <        mpiEventLoop();
89 >      set_interface_stamps(stamps, simParams);
90 >      mpiEventInit();
91 >      MPIcheckPoint();
92 >      mpiEventLoop();
93      }
94 <
94 >    
95   #endif
96
97 }
98
99 SimInfo*  SimCreator::createSim(const std::string & mdFileName, bool loadInitCoords) {
96      
97 +  }
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());
110 >                                                                         simParams->getForceField());
111      
112      if (ff == NULL) {
113 <        sprintf(painCave.errMsg, "ForceField Factory can not create %s force field\n",
114 <                simParams->getForceField());
115 <        painCave.isFatal = 1;
116 <        simError();
113 >      sprintf(painCave.errMsg, "ForceField Factory can not create %s force field\n",
114 >              simParams->getForceField());
115 >      painCave.isFatal = 1;
116 >      simError();
117      }
118 <
118 >    
119      if (simParams->haveForceFieldFileName()) {
120 <        ff->setForceFieldFileName(simParams->getForceFieldFileName());
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 <        
130 <        std::string variant = simParams->getForceFieldVariant();
131 <
132 <        std::string::size_type pos = forcefieldFileName.rfind(".frc");
133 <        variant = "." + variant;
134 <        if (pos != std::string::npos) {
135 <            forcefieldFileName.insert(pos, variant);
136 <        } else {
137 <            //If the default force field file name does not containt .frc suffix, just append the .variant
138 <            forcefieldFileName.append(variant);
139 <        }
127 >      //If the force field has variant, the variant force field name will be
128 >      //Base.variant.frc. For exampel EAM.u6.frc
129 >      
130 >      std::string variant = simParams->getForceFieldVariant();
131 >      
132 >      std::string::size_type pos = forcefieldFileName.rfind(".frc");
133 >      variant = "." + variant;
134 >      if (pos != std::string::npos) {
135 >        forcefieldFileName.insert(pos, variant);
136 >      } else {
137 >        //If the default force field file name does not containt .frc suffix, just append the .variant
138 >        forcefieldFileName.append(variant);
139 >      }
140      }
141      
142      ff->parse(forcefieldFileName);
# Line 144 | Line 144 | SimInfo*  SimCreator::createSim(const std::string & md
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 <
149 >    SimInfo * info = new SimInfo(stamps, moleculeStampPairs, ff, simParams);
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 167 | Line 167 | SimInfo*  SimCreator::createSim(const std::string & md
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 175 | Line 175 | SimInfo*  SimCreator::createSim(const std::string & md
175      SimInfo::MoleculeIterator mi;
176      Molecule* mol;
177      for (mol= info->beginMolecule(mi); mol != NULL; mol = info->nextMolecule(mi)) {
178 <        info->addExcludePairs(mol);
178 >      info->addExcludePairs(mol);
179      }
180      
181
182    //load initial coordinates, some extra information are pushed into SimInfo's property map ( such as
183    //eta, chi for NPT integrator)
181      if (loadInitCoords)
182 <        loadCoordinates(info);    
182 >      loadCoordinates(info);    
183      
184      return info;
185 < }
186 <
187 < void SimCreator::gatherParameters(SimInfo *info, const std::string& mdfile) {
188 <
192 <    //setup seed for random number generator
193 <    int seedValue;
194 <    Globals * simParams = info->getSimParams();
195 <
196 <    if (simParams->haveSeed()) {
197 <        seedValue = simParams->getSeed();
198 <
199 <        if (seedValue < 100000000 ) {
200 <            sprintf(painCave.errMsg,
201 <                    "Seed for sprng library should contain at least 9 digits\n"
202 <                        "OOPSE will generate a seed for user\n");
203 <
204 <            painCave.isFatal = 0;
205 <            simError();
206 <
207 <            //using seed generated by system instead of invalid seed set by user
208 <
209 < #ifndef IS_MPI
210 <
211 <            seedValue = make_sprng_seed();
212 <
213 < #else
214 <
215 <            if (worldRank == 0) {
216 <                seedValue = make_sprng_seed();
217 <            }
218 <
219 <            MPI_Bcast(&seedValue, 1, MPI_INT, 0, MPI_COMM_WORLD);
220 <
221 < #endif
222 <
223 <        } //end if (seedValue /1000000000 == 0)
224 <    } else {
225 <
226 < #ifndef IS_MPI
227 <
228 <        seedValue = make_sprng_seed();
229 <
230 < #else
231 <
232 <        if (worldRank == 0) {
233 <            seedValue = make_sprng_seed();
234 <        }
235 <
236 <        MPI_Bcast(&seedValue, 1, MPI_INT, 0, MPI_COMM_WORLD);
237 <
238 < #endif
239 <
240 <    } //end of simParams->haveSeed()
241 <
242 <    info->setSeed(seedValue);
243 <
244 <
185 >  }
186 >  
187 >  void SimCreator::gatherParameters(SimInfo *info, const std::string& mdfile) {
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 <
197 <        if (simParams->haveFinalConfig()) {
198 <            prefix = getPrefix(simParams->getFinalConfig());
199 <        } else {
200 <            prefix = getPrefix(mdfile);
201 <        }
202 <
203 <        info->setFinalConfigFileName(prefix + ".eor");
204 <        info->setDumpFileName(prefix + ".dump");
205 <        info->setStatFileName(prefix + ".stat");
206 <
196 >      Globals * simParams = info->getSimParams();
197 >      if (simParams->haveFinalConfig()) {
198 >        prefix = getPrefix(simParams->getFinalConfig());
199 >      } else {
200 >        prefix = getPrefix(mdfile);
201 >      }
202 >      
203 >      info->setFinalConfigFileName(prefix + ".eor");
204 >      info->setDumpFileName(prefix + ".dump");
205 >      info->setStatFileName(prefix + ".stat");
206 >      info->setRestFileName(prefix + ".zang");
207 >      
208   #ifdef IS_MPI
209 <
209 >      
210      }
211 <
211 >    
212   #endif
213 <
214 < }
215 <
213 >    
214 >  }
215 >  
216   #ifdef IS_MPI
217 < void SimCreator::divideMolecules(SimInfo *info) {
217 >  void SimCreator::divideMolecules(SimInfo *info) {
218      double numerator;
219      double denominator;
220      double precast;
# Line 287 | Line 232 | void SimCreator::divideMolecules(SimInfo *info) {
232      int which_proc;
233      int nProcessors;
234      std::vector<int> atomsPerProc;
290    randomSPRNG myRandom(info->getSeed());
235      int nGlobalMols = info->getNGlobalMolecules();
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"
243 <                    "\tThe number of processors is larger than\n"
244 <                    "\tthe number of molecules.  This will not result in a \n"
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 <
249 <        painCave.isFatal = 1;
250 <        simError();
241 >      sprintf(painCave.errMsg,
242 >              "nProcessors (%d) > nMol (%d)\n"
243 >              "\tThe number of processors is larger than\n"
244 >              "\tthe number of molecules.  This will not result in a \n"
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 >      
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
256 >    if (simParams->haveSeed()) {
257 >      seedValue = simParams->getSeed();
258 >      myRandom = new SeqRandNumGen(seedValue);
259 >    }else {
260 >      myRandom = new SeqRandNumGen();
261 >    }  
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 <
275 <        for(i = 0; i < nGlobalMols; i++) {
276 <            done = 0;
277 <            loops = 0;
278 <
279 <            while (!done) {
280 <                loops++;
281 <
282 <                // Pick a processor at random
283 <
284 <                which_proc = (int) (myRandom.getRandom() * nProcessors);
285 <
286 <                //get the molecule stamp first
287 <                int stampId = info->getMoleculeStampId(i);
288 <                MoleculeStamp * moleculeStamp = info->getMoleculeStamp(stampId);
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 <
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 <
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 <
306 <                    painCave.isFatal = 0;
307 <                    simError();
308 <
309 <                    molToProcMap[i] = which_proc;
310 <                    atomsPerProc[which_proc] += add_atoms;
311 <
312 <                    done = 1;
313 <                    continue;
314 <                }
315 <
316 <                // If we can add this molecule to this processor without sending
317 <                // it above nTarget, then go ahead and do it:
318 <
319 <                if (new_atoms <= nTarget) {
320 <                    molToProcMap[i] = which_proc;
321 <                    atomsPerProc[which_proc] += add_atoms;
322 <
323 <                    done = 1;
324 <                    continue;
325 <                }
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 <
331 <                // roughly:  x = new_atoms - nTarget
332 <                //           Pacc(x) = exp(- a * x)
333 <                // where a = penalty / (average atoms per molecule)
334 <
335 <                x = (double)(new_atoms - nTarget);
336 <                y = myRandom.getRandom();
337 <
338 <                if (y < exp(- a * x)) {
339 <                    molToProcMap[i] = which_proc;
340 <                    atomsPerProc[which_proc] += add_atoms;
341 <
342 <                    done = 1;
343 <                    continue;
344 <                } else {
345 <                    continue;
346 <                }
347 <            }
348 <        }
349 <
350 <        // Spray out this nonsense to all other processors:
351 <
352 <        MPI_Bcast(&molToProcMap[0], nGlobalMols, MPI_INT, 0, MPI_COMM_WORLD);
353 <    } else {
354 <
355 <        // Listen to your marching orders from processor 0:
356 <
357 <        MPI_Bcast(&molToProcMap[0], nGlobalMols, MPI_INT, 0, MPI_COMM_WORLD);
270 >      numerator = info->getNGlobalAtoms();
271 >      denominator = nProcessors;
272 >      precast = numerator / denominator;
273 >      nTarget = (int)(precast + 0.5);
274 >      
275 >      for(i = 0; i < nGlobalMols; i++) {
276 >        done = 0;
277 >        loops = 0;
278 >        
279 >        while (!done) {
280 >          loops++;
281 >          
282 >          // Pick a processor at random
283 >          
284 >          which_proc = (int) (myRandom->rand() * nProcessors);
285 >          
286 >          //get the molecule stamp first
287 >          int stampId = info->getMoleculeStampId(i);
288 >          MoleculeStamp * moleculeStamp = info->getMoleculeStamp(stampId);
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 >          
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 >          
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 >            
306 >            painCave.isFatal = 0;
307 >            simError();
308 >            
309 >            molToProcMap[i] = which_proc;
310 >            atomsPerProc[which_proc] += add_atoms;
311 >            
312 >            done = 1;
313 >            continue;
314 >          }
315 >          
316 >          // If we can add this molecule to this processor without sending
317 >          // it above nTarget, then go ahead and do it:
318 >          
319 >          if (new_atoms <= nTarget) {
320 >            molToProcMap[i] = which_proc;
321 >            atomsPerProc[which_proc] += add_atoms;
322 >            
323 >            done = 1;
324 >            continue;
325 >          }
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 >          
331 >          // roughly:  x = new_atoms - nTarget
332 >          //           Pacc(x) = exp(- a * x)
333 >          // where a = penalty / (average atoms per molecule)
334 >          
335 >          x = (double)(new_atoms - nTarget);
336 >          y = myRandom->rand();
337 >          
338 >          if (y < exp(- a * x)) {
339 >            molToProcMap[i] = which_proc;
340 >            atomsPerProc[which_proc] += add_atoms;
341 >            
342 >            done = 1;
343 >            continue;
344 >          } else {
345 >            continue;
346 >          }
347 >        }
348 >      }
349 >      
350 >      delete myRandom;
351 >      
352 >      // Spray out this nonsense to all other processors:
353 >      
354 >      MPI_Bcast(&molToProcMap[0], nGlobalMols, MPI_INT, 0, MPI_COMM_WORLD);
355 >    } else {
356 >      
357 >      // Listen to your marching orders from processor 0:
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 <
366 >  }
367 >  
368   #endif
369 <
370 < void SimCreator::createMolecules(SimInfo *info) {
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 <
378 <        if (info->getMolToProc(i) == worldRank) {
377 >      
378 >      if (info->getMolToProc(i) == worldRank) {
379   #endif
380 <
381 <            stampId = info->getMoleculeStampId(i);
382 <            Molecule * mol = molCreator.createMolecule(info->getForceField(), info->getMoleculeStamp(stampId),
383 <                                                                                    stampId, i, info->getLocalIndexManager());
384 <
385 <            info->addMolecule(mol);
386 <
380 >        
381 >        stampId = info->getMoleculeStampId(i);
382 >        Molecule * mol = molCreator.createMolecule(info->getForceField(), info->getMoleculeStamp(stampId),
383 >                                                   stampId, i, info->getLocalIndexManager());
384 >        
385 >        info->addMolecule(mol);
386 >        
387   #ifdef IS_MPI
388 <
389 <        }
390 <
388 >        
389 >      }
390 >      
391   #endif
392 <
392 >      
393      } //end for(int i=0)  
394 < }
395 <
396 < void SimCreator::compList(MakeStamps *stamps, Globals* simParams,
397 <                        std::vector < std::pair<MoleculeStamp *, int> > &moleculeStampPairs) {
394 >  }
395 >  
396 >  void SimCreator::compList(MakeStamps *stamps, Globals* simParams,
397 >                            std::vector < std::pair<MoleculeStamp *, int> > &moleculeStampPairs) {
398      int i;
399      char * id;
400      MoleculeStamp * currentStamp;
401      Component** the_components = simParams->getComponents();
402      int n_components = simParams->getNComponents();
403 <
403 >    
404      if (!simParams->haveNMol()) {
405 <        // we don't have the total number of molecules, so we assume it is
406 <        // given in each component
405 >      // we don't have the total number of molecules, so we assume it is
406 >      // given in each component
407 >      
408 >      for(i = 0; i < n_components; i++) {
409 >        if (!the_components[i]->haveNMol()) {
410 >          // we have a problem
411 >          sprintf(painCave.errMsg,
412 >                  "SimCreator Error. No global NMol or component NMol given.\n"
413 >                  "\tCannot calculate the number of atoms.\n");
414 >          
415 >          painCave.isFatal = 1;
416 >          simError();
417 >        }
418 >        
419 >        id = the_components[i]->getType();
420  
421 <        for(i = 0; i < n_components; i++) {
422 <            if (!the_components[i]->haveNMol()) {
423 <                // we have a problem
424 <                sprintf(painCave.errMsg,
425 <                        "SimCreator Error. No global NMol or component NMol given.\n"
426 <                            "\tCannot calculate the number of atoms.\n");
427 <
428 <                painCave.isFatal = 1;
429 <                simError();
430 <            }
431 <
432 <            id = the_components[i]->getType();
433 <            currentStamp = (stamps->extractMolStamp(id))->getStamp();
464 <
465 <            if (currentStamp == NULL) {
466 <                sprintf(painCave.errMsg,
467 <                        "SimCreator error: Component \"%s\" was not found in the "
468 <                            "list of declared molecules\n", id);
469 <
470 <                painCave.isFatal = 1;
471 <                simError();
472 <            }
473 <
474 <            moleculeStampPairs.push_back(
475 <                std::make_pair(currentStamp, the_components[i]->getNMol()));
476 <        } //end for (i = 0; i < n_components; i++)
421 >        currentStamp = stamps->getMolStamp(id);
422 >        if (currentStamp == NULL) {
423 >          sprintf(painCave.errMsg,
424 >                  "SimCreator error: Component \"%s\" was not found in the "
425 >                  "list of declared molecules\n", id);
426 >          
427 >          painCave.isFatal = 1;
428 >          simError();
429 >        }
430 >        
431 >        moleculeStampPairs.push_back(
432 >                                     std::make_pair(currentStamp, the_components[i]->getNMol()));
433 >      } //end for (i = 0; i < n_components; i++)
434      } else {
435 <        sprintf(painCave.errMsg, "SimSetup error.\n"
436 <                                     "\tSorry, the ability to specify total"
437 <                                     " nMols and then give molfractions in the components\n"
438 <                                     "\tis not currently supported."
439 <                                     " Please give nMol in the components.\n");
440 <
441 <        painCave.isFatal = 1;
442 <        simError();
443 <    }
444 <
435 >      sprintf(painCave.errMsg, "SimSetup error.\n"
436 >              "\tSorry, the ability to specify total"
437 >              " nMols and then give molfractions in the components\n"
438 >              "\tis not currently supported."
439 >              " Please give nMol in the components.\n");
440 >      
441 >      painCave.isFatal = 1;
442 >      simError();
443 >    }
444 >    
445   #ifdef IS_MPI
446 <
446 >    
447      strcpy(checkPointMsg, "Component stamps successfully extracted\n");
448      MPIcheckPoint();
449 <
449 >    
450   #endif // is_mpi
451 <
452 < }
453 <
454 < void SimCreator::setGlobalIndex(SimInfo *info) {
451 >    
452 >  }
453 >  
454 >  void SimCreator::setGlobalIndex(SimInfo *info) {
455      SimInfo::MoleculeIterator mi;
456      Molecule::AtomIterator ai;
457      Molecule::RigidBodyIterator ri;
# Line 509 | Line 466 | void SimCreator::setGlobalIndex(SimInfo *info) {
466      int nGlobalAtoms = info->getNGlobalAtoms();
467      
468   #ifndef IS_MPI
469 <
469 >    
470      beginAtomIndex = 0;
471      beginRigidBodyIndex = 0;
472      beginCutoffGroupIndex = 0;
473 <
473 >    
474   #else
475 <
475 >    
476      int nproc;
477      int myNode;
478 <
478 >    
479      myNode = worldRank;
480      MPI_Comm_size(MPI_COMM_WORLD, &nproc);
481 <
481 >    
482      std::vector < int > tmpAtomsInProc(nproc, 0);
483      std::vector < int > tmpRigidBodiesInProc(nproc, 0);
484      std::vector < int > tmpCutoffGroupsInProc(nproc, 0);
485      std::vector < int > NumAtomsInProc(nproc, 0);
486      std::vector < int > NumRigidBodiesInProc(nproc, 0);
487      std::vector < int > NumCutoffGroupsInProc(nproc, 0);
488 <
488 >    
489      tmpAtomsInProc[myNode] = info->getNAtoms();
490      tmpRigidBodiesInProc[myNode] = info->getNRigidBodies();
491      tmpCutoffGroupsInProc[myNode] = info->getNCutoffGroups();
492 <
492 >    
493      //do MPI_ALLREDUCE to exchange the total number of atoms, rigidbodies and cutoff groups
494      MPI_Allreduce(&tmpAtomsInProc[0], &NumAtomsInProc[0], nproc, MPI_INT,
495                    MPI_SUM, MPI_COMM_WORLD);
# Line 540 | Line 497 | void SimCreator::setGlobalIndex(SimInfo *info) {
497                    MPI_INT, MPI_SUM, MPI_COMM_WORLD);
498      MPI_Allreduce(&tmpCutoffGroupsInProc[0], &NumCutoffGroupsInProc[0], nproc,
499                    MPI_INT, MPI_SUM, MPI_COMM_WORLD);
500 <
500 >    
501      beginAtomIndex = 0;
502      beginRigidBodyIndex = 0;
503      beginCutoffGroupIndex = 0;
504 <
504 >    
505      for(int i = 0; i < myNode; i++) {
506 <        beginAtomIndex += NumAtomsInProc[i];
507 <        beginRigidBodyIndex += NumRigidBodiesInProc[i];
508 <        beginCutoffGroupIndex += NumCutoffGroupsInProc[i];
506 >      beginAtomIndex += NumAtomsInProc[i];
507 >      beginRigidBodyIndex += NumRigidBodiesInProc[i];
508 >      beginCutoffGroupIndex += NumCutoffGroupsInProc[i];
509      }
510 <
510 >    
511 > #endif
512 >    
513      //rigidbody's index begins right after atom's
514      beginRigidBodyIndex += info->getNGlobalAtoms();
515 < #endif
557 <
515 >    
516      for(mol = info->beginMolecule(mi); mol != NULL;
517          mol = info->nextMolecule(mi)) {
518 <
519 <        //local index(index in DataStorge) of atom is important
520 <        for(atom = mol->beginAtom(ai); atom != NULL; atom = mol->nextAtom(ai)) {
521 <            atom->setGlobalIndex(beginAtomIndex++);
522 <        }
523 <
524 <        for(rb = mol->beginRigidBody(ri); rb != NULL;
525 <            rb = mol->nextRigidBody(ri)) {
526 <            rb->setGlobalIndex(beginRigidBodyIndex++);
527 <        }
528 <
529 <        //local index of cutoff group is trivial, it only depends on the order of travesing
530 <        for(cg = mol->beginCutoffGroup(ci); cg != NULL;
531 <            cg = mol->nextCutoffGroup(ci)) {
532 <            cg->setGlobalIndex(beginCutoffGroupIndex++);
533 <        }
518 >      
519 >      //local index(index in DataStorge) of atom is important
520 >      for(atom = mol->beginAtom(ai); atom != NULL; atom = mol->nextAtom(ai)) {
521 >        atom->setGlobalIndex(beginAtomIndex++);
522 >      }
523 >      
524 >      for(rb = mol->beginRigidBody(ri); rb != NULL;
525 >          rb = mol->nextRigidBody(ri)) {
526 >        rb->setGlobalIndex(beginRigidBodyIndex++);
527 >      }
528 >      
529 >      //local index of cutoff group is trivial, it only depends on the order of travesing
530 >      for(cg = mol->beginCutoffGroup(ci); cg != NULL;
531 >          cg = mol->nextCutoffGroup(ci)) {
532 >        cg->setGlobalIndex(beginCutoffGroupIndex++);
533 >      }
534      }
535 <
535 >    
536      //fill globalGroupMembership
537      std::vector<int> globalGroupMembership(info->getNGlobalAtoms(), 0);
538      for(mol = info->beginMolecule(mi); mol != NULL; mol = info->nextMolecule(mi)) {        
539 <        for (cg = mol->beginCutoffGroup(ci); cg != NULL; cg = mol->nextCutoffGroup(ci)) {
540 <
541 <            for(atom = cg->beginAtom(ai); atom != NULL; atom = cg->nextAtom(ai)) {
542 <                globalGroupMembership[atom->getGlobalIndex()] = cg->getGlobalIndex();
543 <            }
544 <
545 <        }      
539 >      for (cg = mol->beginCutoffGroup(ci); cg != NULL; cg = mol->nextCutoffGroup(ci)) {
540 >        
541 >        for(atom = cg->beginAtom(ai); atom != NULL; atom = cg->nextAtom(ai)) {
542 >          globalGroupMembership[atom->getGlobalIndex()] = cg->getGlobalIndex();
543 >        }
544 >        
545 >      }      
546      }
547 <
547 >    
548   #ifdef IS_MPI    
549      // Since the globalGroupMembership has been zero filled and we've only
550      // poked values into the atoms we know, we can do an Allreduce
# Line 596 | Line 554 | void SimCreator::setGlobalIndex(SimInfo *info) {
554      std::vector<int> tmpGroupMembership(nGlobalAtoms, 0);
555      MPI_Allreduce(&globalGroupMembership[0], &tmpGroupMembership[0], nGlobalAtoms,
556                    MPI_INT, MPI_SUM, MPI_COMM_WORLD);
557 <     info->setGlobalGroupMembership(tmpGroupMembership);
557 >    info->setGlobalGroupMembership(tmpGroupMembership);
558   #else
559      info->setGlobalGroupMembership(globalGroupMembership);
560   #endif
561 <
561 >    
562      //fill molMembership
563      std::vector<int> globalMolMembership(info->getNGlobalAtoms(), 0);
564      
565      for(mol = info->beginMolecule(mi); mol != NULL; mol = info->nextMolecule(mi)) {
566 <
567 <        for(atom = mol->beginAtom(ai); atom != NULL; atom = mol->nextAtom(ai)) {
568 <            globalMolMembership[atom->getGlobalIndex()] = mol->getGlobalIndex();
569 <        }
566 >      
567 >      for(atom = mol->beginAtom(ai); atom != NULL; atom = mol->nextAtom(ai)) {
568 >        globalMolMembership[atom->getGlobalIndex()] = mol->getGlobalIndex();
569 >      }
570      }
571 <
571 >    
572   #ifdef IS_MPI
573      std::vector<int> tmpMolMembership(nGlobalAtoms, 0);
574 <
574 >    
575      MPI_Allreduce(&globalMolMembership[0], &tmpMolMembership[0], nGlobalAtoms,
576                    MPI_INT, MPI_SUM, MPI_COMM_WORLD);
577      
# Line 621 | Line 579 | void SimCreator::setGlobalIndex(SimInfo *info) {
579   #else
580      info->setGlobalMolMembership(globalMolMembership);
581   #endif
582 <
583 < }
584 <
585 < void SimCreator::loadCoordinates(SimInfo* info) {
582 >    
583 >  }
584 >  
585 >  void SimCreator::loadCoordinates(SimInfo* info) {
586      Globals* simParams;
587      simParams = info->getSimParams();
588      
589      if (!simParams->haveInitialConfig()) {
590 <        sprintf(painCave.errMsg,
591 <                "Cannot intialize a simulation without an initial configuration file.\n");
592 <        painCave.isFatal = 1;;
593 <        simError();
590 >      sprintf(painCave.errMsg,
591 >              "Cannot intialize a simulation without an initial configuration file.\n");
592 >      painCave.isFatal = 1;;
593 >      simError();
594      }
595 <        
595 >    
596      DumpReader reader(info, simParams->getInitialConfig());
597      int nframes = reader.getNFrames();
598 <
598 >    
599      if (nframes > 0) {
600 <        reader.readFrame(nframes - 1);
600 >      reader.readFrame(nframes - 1);
601      } else {
602 <        //invalid initial coordinate file
603 <        sprintf(painCave.errMsg, "Initial configuration file %s should at least contain one frame\n",
604 <                simParams->getInitialConfig());
605 <        painCave.isFatal = 1;
606 <        simError();
602 >      //invalid initial coordinate file
603 >      sprintf(painCave.errMsg,
604 >              "Initial configuration file %s should at least contain one frame\n",
605 >              simParams->getInitialConfig());
606 >      painCave.isFatal = 1;
607 >      simError();
608      }
609 <
609 >    
610      //copy the current snapshot to previous snapshot
611      info->getSnapshotManager()->advance();
612 < }
613 <
612 >  }
613 >  
614   } //end namespace oopse
615  
616  

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