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trunk/src/brains/ForceManager.cpp (file contents), Revision 963 by tim, Wed May 17 21:51:42 2006 UTC vs.
branches/development/src/brains/ForceManager.cpp (file contents), Revision 1503 by gezelter, Sat Oct 2 19:54:41 2010 UTC

# Line 6 | Line 6
6   * redistribute this software in source and binary code form, provided
7   * that the following conditions are met:
8   *
9 < * 1. Acknowledgement of the program authors must be made in any
10 < *    publication of scientific results based in part on use of the
11 < *    program.  An acceptable form of acknowledgement is citation of
12 < *    the article in which the program was described (Matthew
13 < *    A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
14 < *    J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
15 < *    Parallel Simulation Engine for Molecular Dynamics,"
16 < *    J. Comput. Chem. 26, pp. 252-271 (2005))
17 < *
18 < * 2. Redistributions of source code must retain the above copyright
9 > * 1. Redistributions of source code must retain the above copyright
10   *    notice, this list of conditions and the following disclaimer.
11   *
12 < * 3. Redistributions in binary form must reproduce the above copyright
12 > * 2. Redistributions in binary form must reproduce the above copyright
13   *    notice, this list of conditions and the following disclaimer in the
14   *    documentation and/or other materials provided with the
15   *    distribution.
# Line 37 | Line 28
28   * arising out of the use of or inability to use software, even if the
29   * University of Notre Dame has been advised of the possibility of
30   * such damages.
31 + *
32 + * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your
33 + * research, please cite the appropriate papers when you publish your
34 + * work.  Good starting points are:
35 + *                                                                      
36 + * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).            
37 + * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).          
38 + * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).          
39 + * [4]  Vardeman & Gezelter, in progress (2009).                        
40   */
41  
42   /**
# Line 50 | Line 50
50   #include "brains/ForceManager.hpp"
51   #include "primitives/Molecule.hpp"
52   #include "UseTheForce/doForces_interface.h"
53 < #define __C
53 > #define __OPENMD_C
54   #include "UseTheForce/DarkSide/fInteractionMap.h"
55   #include "utils/simError.h"
56 + #include "primitives/Bond.hpp"
57   #include "primitives/Bend.hpp"
58 < #include "primitives/Bend.hpp"
59 < namespace oopse {
58 > #include "primitives/Torsion.hpp"
59 > #include "primitives/Inversion.hpp"
60  
61 < /*
62 <  struct BendOrderStruct {
63 <    Bend* bend;
64 <    BendDataSet dataSet;
64 <  };
65 <  struct TorsionOrderStruct {
66 <    Torsion* torsion;
67 <    TorsionDataSet dataSet;
68 <  };
69 <
70 <  bool  BendSortFunctor(const BendOrderStruct& b1, const BendOrderStruct& b2) {
71 <    return b1.dataSet.deltaV < b2.dataSet.deltaV;
61 > namespace OpenMD {
62 >  
63 >  ForceManager::ForceManager(SimInfo * info) : info_(info),
64 >                                               NBforcesInitialized_(false) {
65    }
66 <
67 <  bool  TorsionSortFunctor(const TorsionOrderStruct& t1, const TorsionOrderStruct& t2) {
68 <    return t1.dataSet.deltaV < t2.dataSet.deltaV;
76 <  }
77 <  */
78 <  void ForceManager::calcForces(bool needPotential, bool needStress) {
79 <
66 >
67 >  void ForceManager::calcForces() {
68 >    
69      if (!info_->isFortranInitialized()) {
70        info_->update();
71      }
72 <
72 >    
73      preCalculation();
74      
75      calcShortRangeInteraction();
76  
77 <    calcLongRangeInteraction(needPotential, needStress);
77 >    calcLongRangeInteraction();
78  
79      postCalculation();
91
92 /*
93    std::vector<BendOrderStruct> bendOrderStruct;
94    for(std::map<Bend*, BendDataSet>::iterator i = bendDataSets.begin(); i != bendDataSets.end(); ++i) {
95        BendOrderStruct tmp;
96        tmp.bend= const_cast<Bend*>(i->first);
97        tmp.dataSet = i->second;
98        bendOrderStruct.push_back(tmp);
99    }
100
101    std::vector<TorsionOrderStruct> torsionOrderStruct;
102    for(std::map<Torsion*, TorsionDataSet>::iterator j = torsionDataSets.begin(); j != torsionDataSets.end(); ++j) {
103        TorsionOrderStruct tmp;
104        tmp.torsion = const_cast<Torsion*>(j->first);
105        tmp.dataSet = j->second;
106        torsionOrderStruct.push_back(tmp);
107    }
80      
109    std::sort(bendOrderStruct.begin(), bendOrderStruct.end(), std::ptr_fun(BendSortFunctor));
110    std::sort(torsionOrderStruct.begin(), torsionOrderStruct.end(), std::ptr_fun(TorsionSortFunctor));
111    for (std::vector<BendOrderStruct>::iterator k = bendOrderStruct.begin(); k != bendOrderStruct.end(); ++k) {
112        Bend* bend = k->bend;
113        std::cout << "Bend: atom1=" <<bend->getAtomA()->getGlobalIndex() << ",atom2 = "<< bend->getAtomB()->getGlobalIndex() << ",atom3="<<bend->getAtomC()->getGlobalIndex() << " ";
114        std::cout << "deltaV=" << k->dataSet.deltaV << ",p_theta=" << k->dataSet.prev.angle <<",p_pot=" << k->dataSet.prev.potential<< ",c_theta=" << k->dataSet.curr.angle << ", c_pot = " << k->dataSet.curr.potential <<std::endl;
115    }
116    for (std::vector<TorsionOrderStruct>::iterator l = torsionOrderStruct.begin(); l != torsionOrderStruct.end(); ++l) {
117        Torsion* torsion = l->torsion;
118        std::cout << "Torsion: atom1=" <<torsion->getAtomA()->getGlobalIndex() << ",atom2 = "<< torsion->getAtomB()->getGlobalIndex() << ",atom3="<<torsion->getAtomC()->getGlobalIndex() << ",atom4="<<torsion->getAtomD()->getGlobalIndex()<< " ";
119        std::cout << "deltaV=" << l->dataSet.deltaV << ",p_theta=" << l->dataSet.prev.angle <<",p_pot=" << l->dataSet.prev.potential<< ",c_theta=" << l->dataSet.curr.angle << ", c_pot = " << l->dataSet.curr.potential <<std::endl;
120    }
121   */
81    }
82 <
82 >  
83    void ForceManager::preCalculation() {
84      SimInfo::MoleculeIterator mi;
85      Molecule* mol;
# Line 131 | Line 90 | namespace oopse {
90      
91      // forces are zeroed here, before any are accumulated.
92      // NOTE: do not rezero the forces in Fortran.
93 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
93 >    
94 >    for (mol = info_->beginMolecule(mi); mol != NULL;
95 >         mol = info_->nextMolecule(mi)) {
96        for(atom = mol->beginAtom(ai); atom != NULL; atom = mol->nextAtom(ai)) {
97          atom->zeroForcesAndTorques();
98        }
99 <        
99 >          
100        //change the positions of atoms which belong to the rigidbodies
101 <      for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
101 >      for (rb = mol->beginRigidBody(rbIter); rb != NULL;
102 >           rb = mol->nextRigidBody(rbIter)) {
103          rb->zeroForcesAndTorques();
104        }        
105 +          
106      }
107      
108 +    // Zero out the stress tensor
109 +    tau *= 0.0;
110 +    
111    }
112 <
112 >  
113    void ForceManager::calcShortRangeInteraction() {
114      Molecule* mol;
115      RigidBody* rb;
116      Bond* bond;
117      Bend* bend;
118      Torsion* torsion;
119 +    Inversion* inversion;
120      SimInfo::MoleculeIterator mi;
121      Molecule::RigidBodyIterator rbIter;
122      Molecule::BondIterator bondIter;;
123      Molecule::BendIterator  bendIter;
124      Molecule::TorsionIterator  torsionIter;
125 +    Molecule::InversionIterator  inversionIter;
126      RealType bondPotential = 0.0;
127      RealType bendPotential = 0.0;
128      RealType torsionPotential = 0.0;
129 +    RealType inversionPotential = 0.0;
130  
131      //calculate short range interactions    
132 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
132 >    for (mol = info_->beginMolecule(mi); mol != NULL;
133 >         mol = info_->nextMolecule(mi)) {
134  
135        //change the positions of atoms which belong to the rigidbodies
136 <      for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
137 <          rb->updateAtoms();
136 >      for (rb = mol->beginRigidBody(rbIter); rb != NULL;
137 >           rb = mol->nextRigidBody(rbIter)) {
138 >        rb->updateAtoms();
139        }
140  
141 <      for (bond = mol->beginBond(bondIter); bond != NULL; bond = mol->nextBond(bondIter)) {
141 >      for (bond = mol->beginBond(bondIter); bond != NULL;
142 >           bond = mol->nextBond(bondIter)) {
143          bond->calcForce();
144          bondPotential += bond->getPotential();
145        }
146  
147 <
148 <      for (bend = mol->beginBend(bendIter); bend != NULL; bend = mol->nextBend(bendIter)) {
149 <
178 <          RealType angle;
179 <            bend->calcForce(angle);
180 <          RealType currBendPot = bend->getPotential();          
181 <            bendPotential += bend->getPotential();
182 <          std::map<Bend*, BendDataSet>::iterator i = bendDataSets.find(bend);
183 <          if (i == bendDataSets.end()) {
184 <            BendDataSet dataSet;
185 <            dataSet.prev.angle = dataSet.curr.angle = angle;
186 <            dataSet.prev.potential = dataSet.curr.potential = currBendPot;
187 <            dataSet.deltaV = 0.0;
188 <            bendDataSets.insert(std::map<Bend*, BendDataSet>::value_type(bend, dataSet));
189 <          }else {
190 <            i->second.prev.angle = i->second.curr.angle;
191 <            i->second.prev.potential = i->second.curr.potential;
192 <            i->second.curr.angle = angle;
193 <            i->second.curr.potential = currBendPot;
194 <            i->second.deltaV =  fabs(i->second.curr.potential -  i->second.prev.potential);
195 <          }
196 <      }
197 <
198 <      for (torsion = mol->beginTorsion(torsionIter); torsion != NULL; torsion = mol->nextTorsion(torsionIter)) {
147 >      for (bend = mol->beginBend(bendIter); bend != NULL;
148 >           bend = mol->nextBend(bendIter)) {
149 >        
150          RealType angle;
151 <          torsion->calcForce(angle);
152 <        RealType currTorsionPot = torsion->getPotential();
153 <          torsionPotential += torsion->getPotential();
154 <          std::map<Torsion*, TorsionDataSet>::iterator i = torsionDataSets.find(torsion);
155 <          if (i == torsionDataSets.end()) {
156 <            TorsionDataSet dataSet;
157 <            dataSet.prev.angle = dataSet.curr.angle = angle;
158 <            dataSet.prev.potential = dataSet.curr.potential = currTorsionPot;
159 <            dataSet.deltaV = 0.0;
160 <            torsionDataSets.insert(std::map<Torsion*, TorsionDataSet>::value_type(torsion, dataSet));
161 <          }else {
162 <            i->second.prev.angle = i->second.curr.angle;
163 <            i->second.prev.potential = i->second.curr.potential;
164 <            i->second.curr.angle = angle;
165 <            i->second.curr.potential = currTorsionPot;
166 <            i->second.deltaV =  fabs(i->second.curr.potential -  i->second.prev.potential);
167 <          }      
151 >        bend->calcForce(angle);
152 >        RealType currBendPot = bend->getPotential();          
153 >        
154 >        bendPotential += bend->getPotential();
155 >        std::map<Bend*, BendDataSet>::iterator i = bendDataSets.find(bend);
156 >        if (i == bendDataSets.end()) {
157 >          BendDataSet dataSet;
158 >          dataSet.prev.angle = dataSet.curr.angle = angle;
159 >          dataSet.prev.potential = dataSet.curr.potential = currBendPot;
160 >          dataSet.deltaV = 0.0;
161 >          bendDataSets.insert(std::map<Bend*, BendDataSet>::value_type(bend, dataSet));
162 >        }else {
163 >          i->second.prev.angle = i->second.curr.angle;
164 >          i->second.prev.potential = i->second.curr.potential;
165 >          i->second.curr.angle = angle;
166 >          i->second.curr.potential = currBendPot;
167 >          i->second.deltaV =  fabs(i->second.curr.potential -  
168 >                                   i->second.prev.potential);
169 >        }
170        }
171 +      
172 +      for (torsion = mol->beginTorsion(torsionIter); torsion != NULL;
173 +           torsion = mol->nextTorsion(torsionIter)) {
174 +        RealType angle;
175 +        torsion->calcForce(angle);
176 +        RealType currTorsionPot = torsion->getPotential();
177 +        torsionPotential += torsion->getPotential();
178 +        std::map<Torsion*, TorsionDataSet>::iterator i = torsionDataSets.find(torsion);
179 +        if (i == torsionDataSets.end()) {
180 +          TorsionDataSet dataSet;
181 +          dataSet.prev.angle = dataSet.curr.angle = angle;
182 +          dataSet.prev.potential = dataSet.curr.potential = currTorsionPot;
183 +          dataSet.deltaV = 0.0;
184 +          torsionDataSets.insert(std::map<Torsion*, TorsionDataSet>::value_type(torsion, dataSet));
185 +        }else {
186 +          i->second.prev.angle = i->second.curr.angle;
187 +          i->second.prev.potential = i->second.curr.potential;
188 +          i->second.curr.angle = angle;
189 +          i->second.curr.potential = currTorsionPot;
190 +          i->second.deltaV =  fabs(i->second.curr.potential -  
191 +                                   i->second.prev.potential);
192 +        }      
193 +      }      
194  
195 +      for (inversion = mol->beginInversion(inversionIter);
196 +           inversion != NULL;
197 +           inversion = mol->nextInversion(inversionIter)) {
198 +        RealType angle;
199 +        inversion->calcForce(angle);
200 +        RealType currInversionPot = inversion->getPotential();
201 +        inversionPotential += inversion->getPotential();
202 +        std::map<Inversion*, InversionDataSet>::iterator i = inversionDataSets.find(inversion);
203 +        if (i == inversionDataSets.end()) {
204 +          InversionDataSet dataSet;
205 +          dataSet.prev.angle = dataSet.curr.angle = angle;
206 +          dataSet.prev.potential = dataSet.curr.potential = currInversionPot;
207 +          dataSet.deltaV = 0.0;
208 +          inversionDataSets.insert(std::map<Inversion*, InversionDataSet>::value_type(inversion, dataSet));
209 +        }else {
210 +          i->second.prev.angle = i->second.curr.angle;
211 +          i->second.prev.potential = i->second.curr.potential;
212 +          i->second.curr.angle = angle;
213 +          i->second.curr.potential = currInversionPot;
214 +          i->second.deltaV =  fabs(i->second.curr.potential -  
215 +                                   i->second.prev.potential);
216 +        }      
217 +      }      
218      }
219      
220 <    RealType  shortRangePotential = bondPotential + bendPotential + torsionPotential;    
220 >    RealType  shortRangePotential = bondPotential + bendPotential +
221 >      torsionPotential +  inversionPotential;    
222      Snapshot* curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
223      curSnapshot->statData[Stats::SHORT_RANGE_POTENTIAL] = shortRangePotential;
224      curSnapshot->statData[Stats::BOND_POTENTIAL] = bondPotential;
225      curSnapshot->statData[Stats::BEND_POTENTIAL] = bendPotential;
226      curSnapshot->statData[Stats::DIHEDRAL_POTENTIAL] = torsionPotential;
227 +    curSnapshot->statData[Stats::INVERSION_POTENTIAL] = inversionPotential;
228      
229    }
230 <
231 <  void ForceManager::calcLongRangeInteraction(bool needPotential, bool needStress) {
230 >  
231 >  void ForceManager::calcLongRangeInteraction() {
232      Snapshot* curSnapshot;
233      DataStorage* config;
234      RealType* frc;
# Line 236 | Line 237 | namespace oopse {
237      RealType* A;
238      RealType* electroFrame;
239      RealType* rc;
240 +    RealType* particlePot;
241      
242      //get current snapshot from SimInfo
243      curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
244 <
244 >    
245      //get array pointers
246      config = &(curSnapshot->atomData);
247      frc = config->getArrayPointer(DataStorage::dslForce);
# Line 247 | Line 249 | namespace oopse {
249      trq = config->getArrayPointer(DataStorage::dslTorque);
250      A   = config->getArrayPointer(DataStorage::dslAmat);
251      electroFrame = config->getArrayPointer(DataStorage::dslElectroFrame);
252 +    particlePot = config->getArrayPointer(DataStorage::dslParticlePot);
253  
254      //calculate the center of mass of cutoff group
255      SimInfo::MoleculeIterator mi;
# Line 255 | Line 258 | namespace oopse {
258      CutoffGroup* cg;
259      Vector3d com;
260      std::vector<Vector3d> rcGroup;
261 <
261 >    
262      if(info_->getNCutoffGroups() > 0){
263 <
264 <      for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
265 <        for(cg = mol->beginCutoffGroup(ci); cg != NULL; cg = mol->nextCutoffGroup(ci)) {
263 >      
264 >      for (mol = info_->beginMolecule(mi); mol != NULL;
265 >           mol = info_->nextMolecule(mi)) {
266 >        for(cg = mol->beginCutoffGroup(ci); cg != NULL;
267 >            cg = mol->nextCutoffGroup(ci)) {
268            cg->getCOM(com);
269            rcGroup.push_back(com);
270          }
# Line 267 | Line 272 | namespace oopse {
272        
273        rc = rcGroup[0].getArrayPointer();
274      } else {
275 <      // center of mass of the group is the same as position of the atom  if cutoff group does not exist
275 >      // center of mass of the group is the same as position of the atom  
276 >      // if cutoff group does not exist
277        rc = pos;
278      }
279 <  
279 >    
280      //initialize data before passing to fortran
281      RealType longRangePotential[LR_POT_TYPES];
282      RealType lrPot = 0.0;
277    
278    Mat3x3d tau;
279    short int passedCalcPot = needPotential;
280    short int passedCalcStress = needStress;
283      int isError = 0;
284  
285      for (int i=0; i<LR_POT_TYPES;i++){
286        longRangePotential[i]=0.0; //Initialize array
287      }
288 <
289 <    doForceLoop( pos,
290 <                 rc,
291 <                 A,
292 <                 electroFrame,
293 <                 frc,
294 <                 trq,
295 <                 tau.getArrayPointer(),
296 <                 longRangePotential,
297 <                 &passedCalcPot,
298 <                 &passedCalcStress,
299 <                 &isError );
298 <
288 >    
289 >    doForceLoop(pos,
290 >                rc,
291 >                A,
292 >                electroFrame,
293 >                frc,
294 >                trq,
295 >                tau.getArrayPointer(),
296 >                longRangePotential,
297 >                particlePot,
298 >                &isError );
299 >    
300      if( isError ){
301        sprintf( painCave.errMsg,
302                 "Error returned from the fortran force calculation.\n" );
# Line 305 | Line 306 | namespace oopse {
306      for (int i=0; i<LR_POT_TYPES;i++){
307        lrPot += longRangePotential[i]; //Quick hack
308      }
309 <
309 >        
310      //store the tau and long range potential    
311      curSnapshot->statData[Stats::LONG_RANGE_POTENTIAL] = lrPot;
312      curSnapshot->statData[Stats::VANDERWAALS_POTENTIAL] = longRangePotential[VDW_POT];
313      curSnapshot->statData[Stats::ELECTROSTATIC_POTENTIAL] = longRangePotential[ELECTROSTATIC_POT];
313
314    curSnapshot->statData.setTau(tau);
314    }
315  
316 <
316 >  
317    void ForceManager::postCalculation() {
318      SimInfo::MoleculeIterator mi;
319      Molecule* mol;
320      Molecule::RigidBodyIterator rbIter;
321      RigidBody* rb;
322 +    Snapshot* curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
323      
324      // collect the atomic forces onto rigid bodies
325 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
326 <      for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
327 <        rb->calcForcesAndTorques();
325 >    
326 >    for (mol = info_->beginMolecule(mi); mol != NULL;
327 >         mol = info_->nextMolecule(mi)) {
328 >      for (rb = mol->beginRigidBody(rbIter); rb != NULL;
329 >           rb = mol->nextRigidBody(rbIter)) {
330 >        Mat3x3d rbTau = rb->calcForcesAndTorquesAndVirial();
331 >        tau += rbTau;
332        }
333      }
334 <
334 >    
335 > #ifdef IS_MPI
336 >    Mat3x3d tmpTau(tau);
337 >    MPI_Allreduce(tmpTau.getArrayPointer(), tau.getArrayPointer(),
338 >                  9, MPI_REALTYPE, MPI_SUM, MPI_COMM_WORLD);
339 > #endif
340 >    curSnapshot->statData.setTau(tau);
341    }
342  
343 < } //end namespace oopse
343 > } //end namespace OpenMD

Comparing:
trunk/src/brains/ForceManager.cpp (property svn:keywords), Revision 963 by tim, Wed May 17 21:51:42 2006 UTC vs.
branches/development/src/brains/ForceManager.cpp (property svn:keywords), Revision 1503 by gezelter, Sat Oct 2 19:54:41 2010 UTC

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