49 |
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|
50 |
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#include "brains/ForceManager.hpp" |
51 |
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#include "primitives/Molecule.hpp" |
52 |
– |
#include "UseTheForce/doForces_interface.h" |
52 |
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#define __OPENMD_C |
54 |
– |
#include "UseTheForce/DarkSide/fInteractionMap.h" |
53 |
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#include "utils/simError.h" |
54 |
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#include "primitives/Bond.hpp" |
55 |
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#include "primitives/Bend.hpp" |
56 |
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#include "primitives/Torsion.hpp" |
57 |
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#include "primitives/Inversion.hpp" |
58 |
+ |
#include "nonbonded/NonBondedInteraction.hpp" |
59 |
+ |
#include "parallel/ForceMatrixDecomposition.hpp" |
60 |
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|
61 |
+ |
using namespace std; |
62 |
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namespace OpenMD { |
63 |
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|
64 |
< |
ForceManager::ForceManager(SimInfo * info) : info_(info), |
65 |
< |
NBforcesInitialized_(false) { |
64 |
> |
ForceManager::ForceManager(SimInfo * info) : info_(info) { |
65 |
> |
|
66 |
> |
fDecomp_ = new ForceMatrixDecomposition(info_); |
67 |
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} |
68 |
< |
|
68 |
> |
|
69 |
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void ForceManager::calcForces() { |
70 |
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|
71 |
< |
if (!info_->isFortranInitialized()) { |
71 |
> |
if (!info_->isTopologyDone()) { |
72 |
|
info_->update(); |
73 |
+ |
interactionMan_->setSimInfo(info_); |
74 |
+ |
interactionMan_->initialize(); |
75 |
+ |
swfun_ = interactionMan_->getSwitchingFunction(); |
76 |
+ |
info_->prepareTopology(); |
77 |
+ |
fDecomp_->distributeInitialData(); |
78 |
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} |
79 |
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|
80 |
< |
preCalculation(); |
81 |
< |
|
82 |
< |
calcShortRangeInteraction(); |
76 |
< |
|
77 |
< |
calcLongRangeInteraction(); |
78 |
< |
|
80 |
> |
preCalculation(); |
81 |
> |
shortRangeInteractions(); |
82 |
> |
longRangeInteractions(); |
83 |
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postCalculation(); |
84 |
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|
85 |
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} |
91 |
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Atom* atom; |
92 |
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Molecule::RigidBodyIterator rbIter; |
93 |
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RigidBody* rb; |
94 |
+ |
Molecule::CutoffGroupIterator ci; |
95 |
+ |
CutoffGroup* cg; |
96 |
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|
97 |
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// forces are zeroed here, before any are accumulated. |
92 |
– |
// NOTE: do not rezero the forces in Fortran. |
98 |
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|
99 |
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for (mol = info_->beginMolecule(mi); mol != NULL; |
100 |
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mol = info_->nextMolecule(mi)) { |
107 |
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rb = mol->nextRigidBody(rbIter)) { |
108 |
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rb->zeroForcesAndTorques(); |
109 |
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} |
110 |
< |
|
110 |
> |
|
111 |
> |
if(info_->getNGlobalCutoffGroups() != info_->getNGlobalAtoms()){ |
112 |
> |
for(cg = mol->beginCutoffGroup(ci); cg != NULL; |
113 |
> |
cg = mol->nextCutoffGroup(ci)) { |
114 |
> |
//calculate the center of mass of cutoff group |
115 |
> |
cg->updateCOM(); |
116 |
> |
} |
117 |
> |
} |
118 |
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} |
119 |
< |
|
119 |
> |
|
120 |
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// Zero out the stress tensor |
121 |
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tau *= 0.0; |
122 |
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|
123 |
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} |
124 |
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|
125 |
< |
void ForceManager::calcShortRangeInteraction() { |
125 |
> |
void ForceManager::shortRangeInteractions() { |
126 |
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Molecule* mol; |
127 |
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RigidBody* rb; |
128 |
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Bond* bond; |
164 |
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RealType currBendPot = bend->getPotential(); |
165 |
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|
166 |
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bendPotential += bend->getPotential(); |
167 |
< |
std::map<Bend*, BendDataSet>::iterator i = bendDataSets.find(bend); |
167 |
> |
map<Bend*, BendDataSet>::iterator i = bendDataSets.find(bend); |
168 |
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if (i == bendDataSets.end()) { |
169 |
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BendDataSet dataSet; |
170 |
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dataSet.prev.angle = dataSet.curr.angle = angle; |
171 |
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dataSet.prev.potential = dataSet.curr.potential = currBendPot; |
172 |
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dataSet.deltaV = 0.0; |
173 |
< |
bendDataSets.insert(std::map<Bend*, BendDataSet>::value_type(bend, dataSet)); |
173 |
> |
bendDataSets.insert(map<Bend*, BendDataSet>::value_type(bend, dataSet)); |
174 |
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}else { |
175 |
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i->second.prev.angle = i->second.curr.angle; |
176 |
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i->second.prev.potential = i->second.curr.potential; |
187 |
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torsion->calcForce(angle); |
188 |
|
RealType currTorsionPot = torsion->getPotential(); |
189 |
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torsionPotential += torsion->getPotential(); |
190 |
< |
std::map<Torsion*, TorsionDataSet>::iterator i = torsionDataSets.find(torsion); |
190 |
> |
map<Torsion*, TorsionDataSet>::iterator i = torsionDataSets.find(torsion); |
191 |
|
if (i == torsionDataSets.end()) { |
192 |
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TorsionDataSet dataSet; |
193 |
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dataSet.prev.angle = dataSet.curr.angle = angle; |
194 |
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dataSet.prev.potential = dataSet.curr.potential = currTorsionPot; |
195 |
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dataSet.deltaV = 0.0; |
196 |
< |
torsionDataSets.insert(std::map<Torsion*, TorsionDataSet>::value_type(torsion, dataSet)); |
196 |
> |
torsionDataSets.insert(map<Torsion*, TorsionDataSet>::value_type(torsion, dataSet)); |
197 |
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}else { |
198 |
|
i->second.prev.angle = i->second.curr.angle; |
199 |
|
i->second.prev.potential = i->second.curr.potential; |
203 |
|
i->second.prev.potential); |
204 |
|
} |
205 |
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} |
206 |
< |
|
206 |
> |
|
207 |
|
for (inversion = mol->beginInversion(inversionIter); |
208 |
|
inversion != NULL; |
209 |
|
inversion = mol->nextInversion(inversionIter)) { |
211 |
|
inversion->calcForce(angle); |
212 |
|
RealType currInversionPot = inversion->getPotential(); |
213 |
|
inversionPotential += inversion->getPotential(); |
214 |
< |
std::map<Inversion*, InversionDataSet>::iterator i = inversionDataSets.find(inversion); |
214 |
> |
map<Inversion*, InversionDataSet>::iterator i = inversionDataSets.find(inversion); |
215 |
|
if (i == inversionDataSets.end()) { |
216 |
|
InversionDataSet dataSet; |
217 |
|
dataSet.prev.angle = dataSet.curr.angle = angle; |
218 |
|
dataSet.prev.potential = dataSet.curr.potential = currInversionPot; |
219 |
|
dataSet.deltaV = 0.0; |
220 |
< |
inversionDataSets.insert(std::map<Inversion*, InversionDataSet>::value_type(inversion, dataSet)); |
220 |
> |
inversionDataSets.insert(map<Inversion*, InversionDataSet>::value_type(inversion, dataSet)); |
221 |
|
}else { |
222 |
|
i->second.prev.angle = i->second.curr.angle; |
223 |
|
i->second.prev.potential = i->second.curr.potential; |
236 |
|
curSnapshot->statData[Stats::BOND_POTENTIAL] = bondPotential; |
237 |
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curSnapshot->statData[Stats::BEND_POTENTIAL] = bendPotential; |
238 |
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curSnapshot->statData[Stats::DIHEDRAL_POTENTIAL] = torsionPotential; |
239 |
< |
curSnapshot->statData[Stats::INVERSION_POTENTIAL] = inversionPotential; |
228 |
< |
|
239 |
> |
curSnapshot->statData[Stats::INVERSION_POTENTIAL] = inversionPotential; |
240 |
|
} |
241 |
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|
242 |
< |
void ForceManager::calcLongRangeInteraction() { |
232 |
< |
Snapshot* curSnapshot; |
233 |
< |
DataStorage* config; |
234 |
< |
RealType* frc; |
235 |
< |
RealType* pos; |
236 |
< |
RealType* trq; |
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 |
< |
|
245 |
< |
//get array pointers |
246 |
< |
config = &(curSnapshot->atomData); |
247 |
< |
frc = config->getArrayPointer(DataStorage::dslForce); |
248 |
< |
pos = config->getArrayPointer(DataStorage::dslPosition); |
249 |
< |
trq = config->getArrayPointer(DataStorage::dslTorque); |
250 |
< |
A = config->getArrayPointer(DataStorage::dslAmat); |
251 |
< |
electroFrame = config->getArrayPointer(DataStorage::dslElectroFrame); |
252 |
< |
particlePot = config->getArrayPointer(DataStorage::dslParticlePot); |
242 |
> |
void ForceManager::longRangeInteractions() { |
243 |
|
|
244 |
< |
//calculate the center of mass of cutoff group |
245 |
< |
SimInfo::MoleculeIterator mi; |
246 |
< |
Molecule* mol; |
247 |
< |
Molecule::CutoffGroupIterator ci; |
248 |
< |
CutoffGroup* cg; |
249 |
< |
Vector3d com; |
250 |
< |
std::vector<Vector3d> rcGroup; |
251 |
< |
|
252 |
< |
if(info_->getNCutoffGroups() > 0){ |
253 |
< |
|
254 |
< |
for (mol = info_->beginMolecule(mi); mol != NULL; |
255 |
< |
mol = info_->nextMolecule(mi)) { |
256 |
< |
for(cg = mol->beginCutoffGroup(ci); cg != NULL; |
257 |
< |
cg = mol->nextCutoffGroup(ci)) { |
268 |
< |
cg->getCOM(com); |
269 |
< |
rcGroup.push_back(com); |
270 |
< |
} |
271 |
< |
}// end for (mol) |
272 |
< |
|
273 |
< |
rc = rcGroup[0].getArrayPointer(); |
244 |
> |
// some of this initial stuff will go away: |
245 |
> |
Snapshot* curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot(); |
246 |
> |
DataStorage* config = &(curSnapshot->atomData); |
247 |
> |
DataStorage* cgConfig = &(curSnapshot->cgData); |
248 |
> |
RealType* frc = config->getArrayPointer(DataStorage::dslForce); |
249 |
> |
RealType* pos = config->getArrayPointer(DataStorage::dslPosition); |
250 |
> |
RealType* trq = config->getArrayPointer(DataStorage::dslTorque); |
251 |
> |
RealType* A = config->getArrayPointer(DataStorage::dslAmat); |
252 |
> |
RealType* electroFrame = config->getArrayPointer(DataStorage::dslElectroFrame); |
253 |
> |
RealType* particlePot = config->getArrayPointer(DataStorage::dslParticlePot); |
254 |
> |
RealType* rc; |
255 |
> |
|
256 |
> |
if(info_->getNGlobalCutoffGroups() != info_->getNGlobalAtoms()){ |
257 |
> |
rc = cgConfig->getArrayPointer(DataStorage::dslPosition); |
258 |
|
} else { |
259 |
|
// center of mass of the group is the same as position of the atom |
260 |
|
// if cutoff group does not exist |
261 |
|
rc = pos; |
262 |
|
} |
263 |
|
|
264 |
< |
//initialize data before passing to fortran |
265 |
< |
RealType longRangePotential[LR_POT_TYPES]; |
266 |
< |
RealType lrPot = 0.0; |
267 |
< |
int isError = 0; |
264 |
> |
// new stuff starts here: |
265 |
> |
fDecomp_->zeroWorkArrays(); |
266 |
> |
fDecomp_->distributeData(); |
267 |
> |
|
268 |
> |
int cg1, cg2, atom1, atom2; |
269 |
> |
Vector3d d_grp, dag; |
270 |
> |
RealType rgrpsq, rgrp; |
271 |
> |
RealType vij; |
272 |
> |
Vector3d fij, fg; |
273 |
> |
pair<int, int> gtypes; |
274 |
> |
RealType rCutSq; |
275 |
> |
bool in_switching_region; |
276 |
> |
RealType sw, dswdr, swderiv; |
277 |
> |
vector<int> atomListColumn, atomListRow, atomListLocal; |
278 |
> |
InteractionData idat; |
279 |
> |
SelfData sdat; |
280 |
> |
RealType mf; |
281 |
> |
potVec pot(0.0); |
282 |
> |
potVec longRangePotential(0.0); |
283 |
> |
RealType lrPot; |
284 |
|
|
285 |
< |
for (int i=0; i<LR_POT_TYPES;i++){ |
286 |
< |
longRangePotential[i]=0.0; //Initialize array |
285 |
> |
int loopStart, loopEnd; |
286 |
> |
|
287 |
> |
loopEnd = PAIR_LOOP; |
288 |
> |
if (info_->requiresPrepair() ) { |
289 |
> |
loopStart = PREPAIR_LOOP; |
290 |
> |
} else { |
291 |
> |
loopStart = PAIR_LOOP; |
292 |
|
} |
293 |
< |
|
294 |
< |
doForceLoop(pos, |
295 |
< |
rc, |
296 |
< |
A, |
297 |
< |
electroFrame, |
298 |
< |
frc, |
299 |
< |
trq, |
300 |
< |
tau.getArrayPointer(), |
301 |
< |
longRangePotential, |
302 |
< |
particlePot, |
303 |
< |
&isError ); |
304 |
< |
|
305 |
< |
if( isError ){ |
306 |
< |
sprintf( painCave.errMsg, |
307 |
< |
"Error returned from the fortran force calculation.\n" ); |
308 |
< |
painCave.isFatal = 1; |
309 |
< |
simError(); |
310 |
< |
} |
311 |
< |
for (int i=0; i<LR_POT_TYPES;i++){ |
312 |
< |
lrPot += longRangePotential[i]; //Quick hack |
293 |
> |
|
294 |
> |
for (int iLoop = loopStart; iLoop < loopEnd; iLoop++) { |
295 |
> |
|
296 |
> |
if (iLoop == loopStart) { |
297 |
> |
bool update_nlist = fDecomp_->checkNeighborList(); |
298 |
> |
if (update_nlist) |
299 |
> |
neighborList = fDecomp_->buildNeighborList(); |
300 |
> |
} |
301 |
> |
|
302 |
> |
for (vector<pair<int, int> >::iterator it = neighborList.begin(); |
303 |
> |
it != neighborList.end(); ++it) { |
304 |
> |
|
305 |
> |
cg1 = (*it).first; |
306 |
> |
cg2 = (*it).second; |
307 |
> |
|
308 |
> |
gtypes = fDecomp_->getGroupTypes(cg1, cg2); |
309 |
> |
d_grp = fDecomp_->getIntergroupVector(cg1, cg2); |
310 |
> |
curSnapshot->wrapVector(d_grp); |
311 |
> |
rgrpsq = d_grp.lengthSquare(); |
312 |
> |
rCutSq = groupCutoffMap[gtypes].first; |
313 |
> |
|
314 |
> |
if (rgrpsq < rCutSq) { |
315 |
> |
*(idat.rcut) = groupCutoffMap[gtypes].second; |
316 |
> |
if (iLoop == PAIR_LOOP) { |
317 |
> |
vij *= 0.0; |
318 |
> |
fij = V3Zero; |
319 |
> |
} |
320 |
> |
|
321 |
> |
in_switching_region = swfun_->getSwitch(rgrpsq, *(idat.sw), dswdr, |
322 |
> |
rgrp); |
323 |
> |
atomListRow = fDecomp_->getAtomsInGroupRow(cg1); |
324 |
> |
atomListColumn = fDecomp_->getAtomsInGroupColumn(cg2); |
325 |
> |
|
326 |
> |
for (vector<int>::iterator ia = atomListRow.begin(); |
327 |
> |
ia != atomListRow.end(); ++ia) { |
328 |
> |
atom1 = (*ia); |
329 |
> |
|
330 |
> |
for (vector<int>::iterator jb = atomListColumn.begin(); |
331 |
> |
jb != atomListColumn.end(); ++jb) { |
332 |
> |
atom2 = (*jb); |
333 |
> |
|
334 |
> |
if (!fDecomp_->skipAtomPair(atom1, atom2)) { |
335 |
> |
|
336 |
> |
pot *= 0.0; |
337 |
> |
|
338 |
> |
idat = fDecomp_->fillInteractionData(atom1, atom2); |
339 |
> |
*(idat.pot) = pot; |
340 |
> |
|
341 |
> |
if (atomListRow.size() == 1 && atomListColumn.size() == 1) { |
342 |
> |
*(idat.d) = d_grp; |
343 |
> |
*(idat.r2) = rgrpsq; |
344 |
> |
} else { |
345 |
> |
*(idat.d) = fDecomp_->getInteratomicVector(atom1, atom2); |
346 |
> |
curSnapshot->wrapVector( *(idat.d) ); |
347 |
> |
*(idat.r2) = idat.d->lengthSquare(); |
348 |
> |
} |
349 |
> |
|
350 |
> |
*(idat.rij) = sqrt( *(idat.r2) ); |
351 |
> |
|
352 |
> |
if (iLoop == PREPAIR_LOOP) { |
353 |
> |
interactionMan_->doPrePair(idat); |
354 |
> |
} else { |
355 |
> |
interactionMan_->doPair(idat); |
356 |
> |
fDecomp_->unpackInteractionData(idat, atom1, atom2); |
357 |
> |
vij += *(idat.vpair); |
358 |
> |
fij += *(idat.f1); |
359 |
> |
tau -= outProduct( *(idat.d), *(idat.f1)); |
360 |
> |
} |
361 |
> |
} |
362 |
> |
} |
363 |
> |
} |
364 |
> |
|
365 |
> |
if (iLoop == PAIR_LOOP) { |
366 |
> |
if (in_switching_region) { |
367 |
> |
swderiv = vij * dswdr / rgrp; |
368 |
> |
fg = swderiv * d_grp; |
369 |
> |
|
370 |
> |
fij += fg; |
371 |
> |
|
372 |
> |
if (atomListRow.size() == 1 && atomListColumn.size() == 1) { |
373 |
> |
tau -= outProduct( *(idat.d), fg); |
374 |
> |
} |
375 |
> |
|
376 |
> |
for (vector<int>::iterator ia = atomListRow.begin(); |
377 |
> |
ia != atomListRow.end(); ++ia) { |
378 |
> |
atom1 = (*ia); |
379 |
> |
mf = fDecomp_->getMassFactorRow(atom1); |
380 |
> |
// fg is the force on atom ia due to cutoff group's |
381 |
> |
// presence in switching region |
382 |
> |
fg = swderiv * d_grp * mf; |
383 |
> |
fDecomp_->addForceToAtomRow(atom1, fg); |
384 |
> |
|
385 |
> |
if (atomListRow.size() > 1) { |
386 |
> |
if (info_->usesAtomicVirial()) { |
387 |
> |
// find the distance between the atom |
388 |
> |
// and the center of the cutoff group: |
389 |
> |
dag = fDecomp_->getAtomToGroupVectorRow(atom1, cg1); |
390 |
> |
tau -= outProduct(dag, fg); |
391 |
> |
} |
392 |
> |
} |
393 |
> |
} |
394 |
> |
for (vector<int>::iterator jb = atomListColumn.begin(); |
395 |
> |
jb != atomListColumn.end(); ++jb) { |
396 |
> |
atom2 = (*jb); |
397 |
> |
mf = fDecomp_->getMassFactorColumn(atom2); |
398 |
> |
// fg is the force on atom jb due to cutoff group's |
399 |
> |
// presence in switching region |
400 |
> |
fg = -swderiv * d_grp * mf; |
401 |
> |
fDecomp_->addForceToAtomColumn(atom2, fg); |
402 |
> |
|
403 |
> |
if (atomListColumn.size() > 1) { |
404 |
> |
if (info_->usesAtomicVirial()) { |
405 |
> |
// find the distance between the atom |
406 |
> |
// and the center of the cutoff group: |
407 |
> |
dag = fDecomp_->getAtomToGroupVectorColumn(atom2, cg2); |
408 |
> |
tau -= outProduct(dag, fg); |
409 |
> |
} |
410 |
> |
} |
411 |
> |
} |
412 |
> |
} |
413 |
> |
//if (!SIM_uses_AtomicVirial) { |
414 |
> |
// tau -= outProduct(d_grp, fij); |
415 |
> |
//} |
416 |
> |
} |
417 |
> |
} |
418 |
> |
} |
419 |
> |
|
420 |
> |
if (iLoop == PREPAIR_LOOP) { |
421 |
> |
if (info_->requiresPrepair()) { |
422 |
> |
fDecomp_->collectIntermediateData(); |
423 |
> |
|
424 |
> |
for (int atom1 = 0; atom1 < info_->getNAtoms(); atom1++) { |
425 |
> |
sdat = fDecomp_->fillSelfData(atom1); |
426 |
> |
interactionMan_->doPreForce(sdat); |
427 |
> |
} |
428 |
> |
|
429 |
> |
fDecomp_->distributeIntermediateData(); |
430 |
> |
} |
431 |
> |
} |
432 |
> |
|
433 |
|
} |
434 |
+ |
|
435 |
+ |
fDecomp_->collectData(); |
436 |
+ |
|
437 |
+ |
if ( info_->requiresSkipCorrection() ) { |
438 |
+ |
|
439 |
+ |
for (int atom1 = 0; atom1 < fDecomp_->getNAtomsInRow(); atom1++) { |
440 |
+ |
|
441 |
+ |
vector<int> skipList = fDecomp_->getSkipsForRowAtom( atom1 ); |
442 |
|
|
443 |
+ |
for (vector<int>::iterator jb = skipList.begin(); |
444 |
+ |
jb != skipList.end(); ++jb) { |
445 |
+ |
|
446 |
+ |
atom2 = (*jb); |
447 |
+ |
idat = fDecomp_->fillSkipData(atom1, atom2); |
448 |
+ |
interactionMan_->doSkipCorrection(idat); |
449 |
+ |
|
450 |
+ |
} |
451 |
+ |
} |
452 |
+ |
} |
453 |
+ |
|
454 |
+ |
if (info_->requiresSelfCorrection()) { |
455 |
+ |
|
456 |
+ |
for (int atom1 = 0; atom1 < info_->getNAtoms(); atom1++) { |
457 |
+ |
sdat = fDecomp_->fillSelfData(atom1); |
458 |
+ |
interactionMan_->doSelfCorrection(sdat); |
459 |
+ |
} |
460 |
+ |
|
461 |
+ |
} |
462 |
+ |
|
463 |
+ |
longRangePotential = fDecomp_->getLongRangePotential(); |
464 |
+ |
lrPot = longRangePotential.sum(); |
465 |
+ |
|
466 |
|
//store the tau and long range potential |
467 |
|
curSnapshot->statData[Stats::LONG_RANGE_POTENTIAL] = lrPot; |
468 |
< |
curSnapshot->statData[Stats::VANDERWAALS_POTENTIAL] = longRangePotential[VDW_POT]; |
469 |
< |
curSnapshot->statData[Stats::ELECTROSTATIC_POTENTIAL] = longRangePotential[ELECTROSTATIC_POT]; |
468 |
> |
curSnapshot->statData[Stats::VANDERWAALS_POTENTIAL] = longRangePotential[VANDERWAALS_FAMILY]; |
469 |
> |
curSnapshot->statData[Stats::ELECTROSTATIC_POTENTIAL] = longRangePotential[ELECTROSTATIC_FAMILY]; |
470 |
|
} |
471 |
|
|
472 |
|
|