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trunk/src/brains/ForceManager.cpp (file contents), Revision 998 by chrisfen, Mon Jul 3 13:18:43 2006 UTC vs.
branches/development/src/brains/ForceManager.cpp (file contents), Revision 1808 by gezelter, Mon Oct 22 20:42:10 2012 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]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010).
40 + * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
41   */
42  
43   /**
44   * @file ForceManager.cpp
45   * @author tlin
46   * @date 11/09/2004
46 * @time 10:39am
47   * @version 1.0
48   */
49  
50 +
51   #include "brains/ForceManager.hpp"
52   #include "primitives/Molecule.hpp"
53 < #include "UseTheForce/doForces_interface.h"
53 < #define __C
54 < #include "UseTheForce/DarkSide/fInteractionMap.h"
53 > #define __OPENMD_C
54   #include "utils/simError.h"
55 + #include "primitives/Bond.hpp"
56   #include "primitives/Bend.hpp"
57 < #include "primitives/Bend.hpp"
58 < namespace oopse {
57 > #include "primitives/Torsion.hpp"
58 > #include "primitives/Inversion.hpp"
59 > #include "nonbonded/NonBondedInteraction.hpp"
60 > #include "perturbations/ElectricField.hpp"
61 > #include "parallel/ForceMatrixDecomposition.hpp"
62  
63 < /*
64 <  struct BendOrderStruct {
65 <    Bend* bend;
63 <    BendDataSet dataSet;
64 <  };
65 <  struct TorsionOrderStruct {
66 <    Torsion* torsion;
67 <    TorsionDataSet dataSet;
68 <  };
63 > #include <cstdio>
64 > #include <iostream>
65 > #include <iomanip>
66  
67 <  bool  BendSortFunctor(const BendOrderStruct& b1, const BendOrderStruct& b2) {
68 <    return b1.dataSet.deltaV < b2.dataSet.deltaV;
67 > using namespace std;
68 > namespace OpenMD {
69 >  
70 >  ForceManager::ForceManager(SimInfo * info) : info_(info) {
71 >    forceField_ = info_->getForceField();
72 >    interactionMan_ = new InteractionManager();
73 >    fDecomp_ = new ForceMatrixDecomposition(info_, interactionMan_);
74    }
75  
76 <  bool  TorsionSortFunctor(const TorsionOrderStruct& t1, const TorsionOrderStruct& t2) {
77 <    return t1.dataSet.deltaV < t2.dataSet.deltaV;
78 <  }
79 <  */
80 <  void ForceManager::calcForces(bool needPotential, bool needStress) {
76 >  /**
77 >   * setupCutoffs
78 >   *
79 >   * Sets the values of cutoffRadius, switchingRadius, cutoffMethod,
80 >   * and cutoffPolicy
81 >   *
82 >   * cutoffRadius : realType
83 >   *  If the cutoffRadius was explicitly set, use that value.
84 >   *  If the cutoffRadius was not explicitly set:
85 >   *      Are there electrostatic atoms?  Use 12.0 Angstroms.
86 >   *      No electrostatic atoms?  Poll the atom types present in the
87 >   *      simulation for suggested cutoff values (e.g. 2.5 * sigma).
88 >   *      Use the maximum suggested value that was found.
89 >   *
90 >   * cutoffMethod : (one of HARD, SWITCHED, SHIFTED_FORCE,
91 >   *                        or SHIFTED_POTENTIAL)
92 >   *      If cutoffMethod was explicitly set, use that choice.
93 >   *      If cutoffMethod was not explicitly set, use SHIFTED_FORCE
94 >   *
95 >   * cutoffPolicy : (one of MIX, MAX, TRADITIONAL)
96 >   *      If cutoffPolicy was explicitly set, use that choice.
97 >   *      If cutoffPolicy was not explicitly set, use TRADITIONAL
98 >   *
99 >   * switchingRadius : realType
100 >   *  If the cutoffMethod was set to SWITCHED:
101 >   *      If the switchingRadius was explicitly set, use that value
102 >   *          (but do a sanity check first).
103 >   *      If the switchingRadius was not explicitly set: use 0.85 *
104 >   *      cutoffRadius_
105 >   *  If the cutoffMethod was not set to SWITCHED:
106 >   *      Set switchingRadius equal to cutoffRadius for safety.
107 >   */
108 >  void ForceManager::setupCutoffs() {
109 >    
110 >    Globals* simParams_ = info_->getSimParams();
111 >    ForceFieldOptions& forceFieldOptions_ = forceField_->getForceFieldOptions();
112 >    int mdFileVersion;
113 >    rCut_ = 0.0; //Needs a value for a later max() call;  
114 >    
115 >    if (simParams_->haveMDfileVersion())
116 >      mdFileVersion = simParams_->getMDfileVersion();
117 >    else
118 >      mdFileVersion = 0;
119 >  
120 >    if (simParams_->haveCutoffRadius()) {
121 >      rCut_ = simParams_->getCutoffRadius();
122 >    } else {      
123 >      if (info_->usesElectrostaticAtoms()) {
124 >        sprintf(painCave.errMsg,
125 >                "ForceManager::setupCutoffs: No value was set for the cutoffRadius.\n"
126 >                "\tOpenMD will use a default value of 12.0 angstroms"
127 >                "\tfor the cutoffRadius.\n");
128 >        painCave.isFatal = 0;
129 >        painCave.severity = OPENMD_INFO;
130 >        simError();
131 >        rCut_ = 12.0;
132 >      } else {
133 >        RealType thisCut;
134 >        set<AtomType*>::iterator i;
135 >        set<AtomType*> atomTypes;
136 >        atomTypes = info_->getSimulatedAtomTypes();        
137 >        for (i = atomTypes.begin(); i != atomTypes.end(); ++i) {
138 >          thisCut = interactionMan_->getSuggestedCutoffRadius((*i));
139 >          rCut_ = max(thisCut, rCut_);
140 >        }
141 >        sprintf(painCave.errMsg,
142 >                "ForceManager::setupCutoffs: No value was set for the cutoffRadius.\n"
143 >                "\tOpenMD will use %lf angstroms.\n",
144 >                rCut_);
145 >        painCave.isFatal = 0;
146 >        painCave.severity = OPENMD_INFO;
147 >        simError();
148 >      }
149 >    }
150  
151 <    if (!info_->isFortranInitialized()) {
152 <      info_->update();
151 >    fDecomp_->setUserCutoff(rCut_);
152 >    interactionMan_->setCutoffRadius(rCut_);
153 >
154 >    map<string, CutoffMethod> stringToCutoffMethod;
155 >    stringToCutoffMethod["HARD"] = HARD;
156 >    stringToCutoffMethod["SWITCHED"] = SWITCHED;
157 >    stringToCutoffMethod["SHIFTED_POTENTIAL"] = SHIFTED_POTENTIAL;    
158 >    stringToCutoffMethod["SHIFTED_FORCE"] = SHIFTED_FORCE;
159 >  
160 >    if (simParams_->haveCutoffMethod()) {
161 >      string cutMeth = toUpperCopy(simParams_->getCutoffMethod());
162 >      map<string, CutoffMethod>::iterator i;
163 >      i = stringToCutoffMethod.find(cutMeth);
164 >      if (i == stringToCutoffMethod.end()) {
165 >        sprintf(painCave.errMsg,
166 >                "ForceManager::setupCutoffs: Could not find chosen cutoffMethod %s\n"
167 >                "\tShould be one of: "
168 >                "HARD, SWITCHED, SHIFTED_POTENTIAL, or SHIFTED_FORCE\n",
169 >                cutMeth.c_str());
170 >        painCave.isFatal = 1;
171 >        painCave.severity = OPENMD_ERROR;
172 >        simError();
173 >      } else {
174 >        cutoffMethod_ = i->second;
175 >      }
176 >    } else {
177 >      if (mdFileVersion > 1) {
178 >        sprintf(painCave.errMsg,
179 >                "ForceManager::setupCutoffs: No value was set for the cutoffMethod.\n"
180 >                "\tOpenMD will use SHIFTED_FORCE.\n");
181 >        painCave.isFatal = 0;
182 >        painCave.severity = OPENMD_INFO;
183 >        simError();
184 >        cutoffMethod_ = SHIFTED_FORCE;        
185 >      } else {
186 >        // handle the case where the old file version was in play
187 >        // (there should be no cutoffMethod, so we have to deduce it
188 >        // from other data).        
189 >
190 >        sprintf(painCave.errMsg,
191 >                "ForceManager::setupCutoffs : DEPRECATED FILE FORMAT!\n"
192 >                "\tOpenMD found a file which does not set a cutoffMethod.\n"
193 >                "\tOpenMD will attempt to deduce a cutoffMethod using the\n"
194 >                "\tbehavior of the older (version 1) code.  To remove this\n"
195 >                "\twarning, add an explicit cutoffMethod and change the top\n"
196 >                "\tof the file so that it begins with <OpenMD version=2>\n");
197 >        painCave.isFatal = 0;
198 >        painCave.severity = OPENMD_WARNING;
199 >        simError();            
200 >                
201 >        // The old file version tethered the shifting behavior to the
202 >        // electrostaticSummationMethod keyword.
203 >        
204 >        if (simParams_->haveElectrostaticSummationMethod()) {
205 >          string myMethod = simParams_->getElectrostaticSummationMethod();
206 >          toUpper(myMethod);
207 >        
208 >          if (myMethod == "SHIFTED_POTENTIAL") {
209 >            cutoffMethod_ = SHIFTED_POTENTIAL;
210 >          } else if (myMethod == "SHIFTED_FORCE") {
211 >            cutoffMethod_ = SHIFTED_FORCE;
212 >          }
213 >        
214 >          if (simParams_->haveSwitchingRadius())
215 >            rSwitch_ = simParams_->getSwitchingRadius();
216 >
217 >          if (myMethod == "SHIFTED_POTENTIAL" || myMethod == "SHIFTED_FORCE") {
218 >            if (simParams_->haveSwitchingRadius()){
219 >              sprintf(painCave.errMsg,
220 >                      "ForceManager::setupCutoffs : DEPRECATED ERROR MESSAGE\n"
221 >                      "\tA value was set for the switchingRadius\n"
222 >                      "\teven though the electrostaticSummationMethod was\n"
223 >                      "\tset to %s\n", myMethod.c_str());
224 >              painCave.severity = OPENMD_WARNING;
225 >              painCave.isFatal = 1;
226 >              simError();            
227 >            }
228 >          }
229 >          if (abs(rCut_ - rSwitch_) < 0.0001) {
230 >            if (cutoffMethod_ == SHIFTED_FORCE) {              
231 >              sprintf(painCave.errMsg,
232 >                      "ForceManager::setupCutoffs : DEPRECATED BEHAVIOR\n"
233 >                      "\tcutoffRadius and switchingRadius are set to the\n"
234 >                      "\tsame value.  OpenMD will use shifted force\n"
235 >                      "\tpotentials instead of switching functions.\n");
236 >              painCave.isFatal = 0;
237 >              painCave.severity = OPENMD_WARNING;
238 >              simError();            
239 >            } else {
240 >              cutoffMethod_ = SHIFTED_POTENTIAL;
241 >              sprintf(painCave.errMsg,
242 >                      "ForceManager::setupCutoffs : DEPRECATED BEHAVIOR\n"
243 >                      "\tcutoffRadius and switchingRadius are set to the\n"
244 >                      "\tsame value.  OpenMD will use shifted potentials\n"
245 >                      "\tinstead of switching functions.\n");
246 >              painCave.isFatal = 0;
247 >              painCave.severity = OPENMD_WARNING;
248 >              simError();            
249 >            }
250 >          }
251 >        }
252 >      }
253      }
254  
255 <    preCalculation();
256 <    
257 <    calcShortRangeInteraction();
255 >    map<string, CutoffPolicy> stringToCutoffPolicy;
256 >    stringToCutoffPolicy["MIX"] = MIX;
257 >    stringToCutoffPolicy["MAX"] = MAX;
258 >    stringToCutoffPolicy["TRADITIONAL"] = TRADITIONAL;    
259  
260 <    calcLongRangeInteraction(needPotential, needStress);
260 >    string cutPolicy;
261 >    if (forceFieldOptions_.haveCutoffPolicy()){
262 >      cutPolicy = forceFieldOptions_.getCutoffPolicy();
263 >    }else if (simParams_->haveCutoffPolicy()) {
264 >      cutPolicy = simParams_->getCutoffPolicy();
265 >    }
266  
267 <    postCalculation();
267 >    if (!cutPolicy.empty()){
268 >      toUpper(cutPolicy);
269 >      map<string, CutoffPolicy>::iterator i;
270 >      i = stringToCutoffPolicy.find(cutPolicy);
271  
272 < /*
273 <    std::vector<BendOrderStruct> bendOrderStruct;
274 <    for(std::map<Bend*, BendDataSet>::iterator i = bendDataSets.begin(); i != bendDataSets.end(); ++i) {
275 <        BendOrderStruct tmp;
276 <        tmp.bend= const_cast<Bend*>(i->first);
277 <        tmp.dataSet = i->second;
278 <        bendOrderStruct.push_back(tmp);
272 >      if (i == stringToCutoffPolicy.end()) {
273 >        sprintf(painCave.errMsg,
274 >                "ForceManager::setupCutoffs: Could not find chosen cutoffPolicy %s\n"
275 >                "\tShould be one of: "
276 >                "MIX, MAX, or TRADITIONAL\n",
277 >                cutPolicy.c_str());
278 >        painCave.isFatal = 1;
279 >        painCave.severity = OPENMD_ERROR;
280 >        simError();
281 >      } else {
282 >        cutoffPolicy_ = i->second;
283 >      }
284 >    } else {
285 >      sprintf(painCave.errMsg,
286 >              "ForceManager::setupCutoffs: No value was set for the cutoffPolicy.\n"
287 >              "\tOpenMD will use TRADITIONAL.\n");
288 >      painCave.isFatal = 0;
289 >      painCave.severity = OPENMD_INFO;
290 >      simError();
291 >      cutoffPolicy_ = TRADITIONAL;        
292      }
293  
294 <    std::vector<TorsionOrderStruct> torsionOrderStruct;
295 <    for(std::map<Torsion*, TorsionDataSet>::iterator j = torsionDataSets.begin(); j != torsionDataSets.end(); ++j) {
296 <        TorsionOrderStruct tmp;
297 <        tmp.torsion = const_cast<Torsion*>(j->first);
298 <        tmp.dataSet = j->second;
299 <        torsionOrderStruct.push_back(tmp);
294 >    fDecomp_->setCutoffPolicy(cutoffPolicy_);
295 >        
296 >    // create the switching function object:
297 >
298 >    switcher_ = new SwitchingFunction();
299 >  
300 >    if (cutoffMethod_ == SWITCHED) {
301 >      if (simParams_->haveSwitchingRadius()) {
302 >        rSwitch_ = simParams_->getSwitchingRadius();
303 >        if (rSwitch_ > rCut_) {        
304 >          sprintf(painCave.errMsg,
305 >                  "ForceManager::setupCutoffs: switchingRadius (%f) is larger "
306 >                  "than the cutoffRadius(%f)\n", rSwitch_, rCut_);
307 >          painCave.isFatal = 1;
308 >          painCave.severity = OPENMD_ERROR;
309 >          simError();
310 >        }
311 >      } else {      
312 >        rSwitch_ = 0.85 * rCut_;
313 >        sprintf(painCave.errMsg,
314 >                "ForceManager::setupCutoffs: No value was set for the switchingRadius.\n"
315 >                "\tOpenMD will use a default value of 85 percent of the cutoffRadius.\n"
316 >                "\tswitchingRadius = %f. for this simulation\n", rSwitch_);
317 >        painCave.isFatal = 0;
318 >        painCave.severity = OPENMD_WARNING;
319 >        simError();
320 >      }
321 >    } else {
322 >      if (mdFileVersion > 1) {
323 >        // throw an error if we define a switching radius and don't need one.
324 >        // older file versions should not do this.
325 >        if (simParams_->haveSwitchingRadius()) {
326 >          map<string, CutoffMethod>::const_iterator it;
327 >          string theMeth;
328 >          for (it = stringToCutoffMethod.begin();
329 >               it != stringToCutoffMethod.end(); ++it) {
330 >            if (it->second == cutoffMethod_) {
331 >              theMeth = it->first;
332 >              break;
333 >            }
334 >          }
335 >          sprintf(painCave.errMsg,
336 >                  "ForceManager::setupCutoffs: the cutoffMethod (%s)\n"
337 >                  "\tis not set to SWITCHED, so switchingRadius value\n"
338 >                  "\twill be ignored for this simulation\n", theMeth.c_str());
339 >          painCave.isFatal = 0;
340 >          painCave.severity = OPENMD_WARNING;
341 >          simError();
342 >        }
343 >      }
344 >      rSwitch_ = rCut_;
345      }
346      
347 <    std::sort(bendOrderStruct.begin(), bendOrderStruct.end(), std::ptr_fun(BendSortFunctor));
348 <    std::sort(torsionOrderStruct.begin(), torsionOrderStruct.end(), std::ptr_fun(TorsionSortFunctor));
349 <    for (std::vector<BendOrderStruct>::iterator k = bendOrderStruct.begin(); k != bendOrderStruct.end(); ++k) {
350 <        Bend* bend = k->bend;
351 <        std::cout << "Bend: atom1=" <<bend->getAtomA()->getGlobalIndex() << ",atom2 = "<< bend->getAtomB()->getGlobalIndex() << ",atom3="<<bend->getAtomC()->getGlobalIndex() << " ";
352 <        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;
347 >    // Default to cubic switching function.
348 >    sft_ = cubic;
349 >    if (simParams_->haveSwitchingFunctionType()) {
350 >      string funcType = simParams_->getSwitchingFunctionType();
351 >      toUpper(funcType);
352 >      if (funcType == "CUBIC") {
353 >        sft_ = cubic;
354 >      } else {
355 >        if (funcType == "FIFTH_ORDER_POLYNOMIAL") {
356 >          sft_ = fifth_order_poly;
357 >        } else {
358 >          // throw error        
359 >          sprintf( painCave.errMsg,
360 >                   "ForceManager::setupSwitching : Unknown switchingFunctionType. (Input file specified %s .)\n"
361 >                   "\tswitchingFunctionType must be one of: "
362 >                   "\"cubic\" or \"fifth_order_polynomial\".",
363 >                   funcType.c_str() );
364 >          painCave.isFatal = 1;
365 >          painCave.severity = OPENMD_ERROR;
366 >          simError();
367 >        }          
368 >      }
369      }
370 <    for (std::vector<TorsionOrderStruct>::iterator l = torsionOrderStruct.begin(); l != torsionOrderStruct.end(); ++l) {
371 <        Torsion* torsion = l->torsion;
372 <        std::cout << "Torsion: atom1=" <<torsion->getAtomA()->getGlobalIndex() << ",atom2 = "<< torsion->getAtomB()->getGlobalIndex() << ",atom3="<<torsion->getAtomC()->getGlobalIndex() << ",atom4="<<torsion->getAtomD()->getGlobalIndex()<< " ";
373 <        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;
370 >    switcher_->setSwitchType(sft_);
371 >    switcher_->setSwitch(rSwitch_, rCut_);
372 >  }
373 >
374 >
375 >
376 >  
377 >  void ForceManager::initialize() {
378 >
379 >    if (!info_->isTopologyDone()) {
380 >
381 >      info_->update();
382 >      interactionMan_->setSimInfo(info_);
383 >      interactionMan_->initialize();
384 >
385 >      // We want to delay the cutoffs until after the interaction
386 >      // manager has set up the atom-atom interactions so that we can
387 >      // query them for suggested cutoff values
388 >      setupCutoffs();
389 >
390 >      info_->prepareTopology();      
391 >
392 >      doParticlePot_ = info_->getSimParams()->getOutputParticlePotential();
393 >      doHeatFlux_ = info_->getSimParams()->getPrintHeatFlux();
394 >      if (doHeatFlux_) doParticlePot_ = true;
395 >
396 >      doElectricField_ = info_->getSimParams()->getOutputElectricField();
397 >  
398      }
399 <   */
399 >
400 >    ForceFieldOptions& fopts = forceField_->getForceFieldOptions();
401 >    
402 >    // Force fields can set options on how to scale van der Waals and
403 >    // electrostatic interactions for atoms connected via bonds, bends
404 >    // and torsions in this case the topological distance between
405 >    // atoms is:
406 >    // 0 = topologically unconnected
407 >    // 1 = bonded together
408 >    // 2 = connected via a bend
409 >    // 3 = connected via a torsion
410 >    
411 >    vdwScale_.reserve(4);
412 >    fill(vdwScale_.begin(), vdwScale_.end(), 0.0);
413 >
414 >    electrostaticScale_.reserve(4);
415 >    fill(electrostaticScale_.begin(), electrostaticScale_.end(), 0.0);
416 >
417 >    vdwScale_[0] = 1.0;
418 >    vdwScale_[1] = fopts.getvdw12scale();
419 >    vdwScale_[2] = fopts.getvdw13scale();
420 >    vdwScale_[3] = fopts.getvdw14scale();
421 >    
422 >    electrostaticScale_[0] = 1.0;
423 >    electrostaticScale_[1] = fopts.getelectrostatic12scale();
424 >    electrostaticScale_[2] = fopts.getelectrostatic13scale();
425 >    electrostaticScale_[3] = fopts.getelectrostatic14scale();    
426 >    
427 >    if (info_->getSimParams()->haveElectricField()) {
428 >      ElectricField* eField = new ElectricField(info_);
429 >      perturbations_.push_back(eField);
430 >    }
431 >
432 >    fDecomp_->distributeInitialData();
433 >
434 >    initialized_ = true;
435 >
436    }
437  
438 +  void ForceManager::calcForces() {
439 +    
440 +    if (!initialized_) initialize();
441 +
442 +    preCalculation();  
443 +    shortRangeInteractions();
444 +    longRangeInteractions();
445 +    postCalculation();    
446 +  }
447 +  
448    void ForceManager::preCalculation() {
449      SimInfo::MoleculeIterator mi;
450      Molecule* mol;
# Line 128 | Line 452 | namespace oopse {
452      Atom* atom;
453      Molecule::RigidBodyIterator rbIter;
454      RigidBody* rb;
455 +    Molecule::CutoffGroupIterator ci;
456 +    CutoffGroup* cg;
457      
458 <    // forces are zeroed here, before any are accumulated.
459 <    // NOTE: do not rezero the forces in Fortran.
460 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
461 <      for(atom = mol->beginAtom(ai); atom != NULL; atom = mol->nextAtom(ai)) {
458 >    // forces and potentials are zeroed here, before any are
459 >    // accumulated.
460 >    
461 >    Snapshot* snap = info_->getSnapshotManager()->getCurrentSnapshot();
462 >
463 >    snap->setBondPotential(0.0);
464 >    snap->setBendPotential(0.0);
465 >    snap->setTorsionPotential(0.0);
466 >    snap->setInversionPotential(0.0);
467 >
468 >    potVec zeroPot(0.0);
469 >    snap->setLongRangePotential(zeroPot);
470 >    snap->setExcludedPotentials(zeroPot);
471 >
472 >    snap->setRestraintPotential(0.0);
473 >    snap->setRawPotential(0.0);
474 >
475 >    for (mol = info_->beginMolecule(mi); mol != NULL;
476 >         mol = info_->nextMolecule(mi)) {
477 >      for(atom = mol->beginAtom(ai); atom != NULL;
478 >          atom = mol->nextAtom(ai)) {
479          atom->zeroForcesAndTorques();
480        }
481 <        
481 >      
482        //change the positions of atoms which belong to the rigidbodies
483 <      for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
483 >      for (rb = mol->beginRigidBody(rbIter); rb != NULL;
484 >           rb = mol->nextRigidBody(rbIter)) {
485          rb->zeroForcesAndTorques();
486        }        
487 +      
488 +      if(info_->getNGlobalCutoffGroups() != info_->getNGlobalAtoms()){
489 +        for(cg = mol->beginCutoffGroup(ci); cg != NULL;
490 +            cg = mol->nextCutoffGroup(ci)) {
491 +          //calculate the center of mass of cutoff group
492 +          cg->updateCOM();
493 +        }
494 +      }      
495      }
496      
497 +    // Zero out the stress tensor
498 +    stressTensor *= 0.0;
499 +    // Zero out the heatFlux
500 +    fDecomp_->setHeatFlux( Vector3d(0.0) );    
501    }
502 <
503 <  void ForceManager::calcShortRangeInteraction() {
502 >  
503 >  void ForceManager::shortRangeInteractions() {
504      Molecule* mol;
505      RigidBody* rb;
506      Bond* bond;
507      Bend* bend;
508      Torsion* torsion;
509 +    Inversion* inversion;
510      SimInfo::MoleculeIterator mi;
511      Molecule::RigidBodyIterator rbIter;
512      Molecule::BondIterator bondIter;;
513      Molecule::BendIterator  bendIter;
514      Molecule::TorsionIterator  torsionIter;
515 +    Molecule::InversionIterator  inversionIter;
516      RealType bondPotential = 0.0;
517      RealType bendPotential = 0.0;
518      RealType torsionPotential = 0.0;
519 +    RealType inversionPotential = 0.0;
520  
521      //calculate short range interactions    
522 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
522 >    for (mol = info_->beginMolecule(mi); mol != NULL;
523 >         mol = info_->nextMolecule(mi)) {
524  
525        //change the positions of atoms which belong to the rigidbodies
526 <      for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
527 <          rb->updateAtoms();
526 >      for (rb = mol->beginRigidBody(rbIter); rb != NULL;
527 >           rb = mol->nextRigidBody(rbIter)) {
528 >        rb->updateAtoms();
529        }
530  
531 <      for (bond = mol->beginBond(bondIter); bond != NULL; bond = mol->nextBond(bondIter)) {
532 <        bond->calcForce();
531 >      for (bond = mol->beginBond(bondIter); bond != NULL;
532 >           bond = mol->nextBond(bondIter)) {
533 >        bond->calcForce(doParticlePot_);
534          bondPotential += bond->getPotential();
173      }
174
175
176      for (bend = mol->beginBend(bendIter); bend != NULL; bend = mol->nextBend(bendIter)) {
177
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          }
535        }
536  
537 <      for (torsion = mol->beginTorsion(torsionIter); torsion != NULL; torsion = mol->nextTorsion(torsionIter)) {
537 >      for (bend = mol->beginBend(bendIter); bend != NULL;
538 >           bend = mol->nextBend(bendIter)) {
539 >        
540          RealType angle;
541 <          torsion->calcForce(angle);
542 <        RealType currTorsionPot = torsion->getPotential();
543 <          torsionPotential += torsion->getPotential();
544 <          std::map<Torsion*, TorsionDataSet>::iterator i = torsionDataSets.find(torsion);
545 <          if (i == torsionDataSets.end()) {
546 <            TorsionDataSet dataSet;
547 <            dataSet.prev.angle = dataSet.curr.angle = angle;
548 <            dataSet.prev.potential = dataSet.curr.potential = currTorsionPot;
549 <            dataSet.deltaV = 0.0;
550 <            torsionDataSets.insert(std::map<Torsion*, TorsionDataSet>::value_type(torsion, dataSet));
551 <          }else {
552 <            i->second.prev.angle = i->second.curr.angle;
553 <            i->second.prev.potential = i->second.curr.potential;
554 <            i->second.curr.angle = angle;
555 <            i->second.curr.potential = currTorsionPot;
556 <            i->second.deltaV =  fabs(i->second.curr.potential -  i->second.prev.potential);
557 <          }      
541 >        bend->calcForce(angle, doParticlePot_);
542 >        RealType currBendPot = bend->getPotential();          
543 >        
544 >        bendPotential += bend->getPotential();
545 >        map<Bend*, BendDataSet>::iterator i = bendDataSets.find(bend);
546 >        if (i == bendDataSets.end()) {
547 >          BendDataSet dataSet;
548 >          dataSet.prev.angle = dataSet.curr.angle = angle;
549 >          dataSet.prev.potential = dataSet.curr.potential = currBendPot;
550 >          dataSet.deltaV = 0.0;
551 >          bendDataSets.insert(map<Bend*, BendDataSet>::value_type(bend,
552 >                                                                  dataSet));
553 >        }else {
554 >          i->second.prev.angle = i->second.curr.angle;
555 >          i->second.prev.potential = i->second.curr.potential;
556 >          i->second.curr.angle = angle;
557 >          i->second.curr.potential = currBendPot;
558 >          i->second.deltaV =  fabs(i->second.curr.potential -  
559 >                                   i->second.prev.potential);
560 >        }
561        }
562 <
562 >      
563 >      for (torsion = mol->beginTorsion(torsionIter); torsion != NULL;
564 >           torsion = mol->nextTorsion(torsionIter)) {
565 >        RealType angle;
566 >        torsion->calcForce(angle, doParticlePot_);
567 >        RealType currTorsionPot = torsion->getPotential();
568 >        torsionPotential += torsion->getPotential();
569 >        map<Torsion*, TorsionDataSet>::iterator i = torsionDataSets.find(torsion);
570 >        if (i == torsionDataSets.end()) {
571 >          TorsionDataSet dataSet;
572 >          dataSet.prev.angle = dataSet.curr.angle = angle;
573 >          dataSet.prev.potential = dataSet.curr.potential = currTorsionPot;
574 >          dataSet.deltaV = 0.0;
575 >          torsionDataSets.insert(map<Torsion*, TorsionDataSet>::value_type(torsion, dataSet));
576 >        }else {
577 >          i->second.prev.angle = i->second.curr.angle;
578 >          i->second.prev.potential = i->second.curr.potential;
579 >          i->second.curr.angle = angle;
580 >          i->second.curr.potential = currTorsionPot;
581 >          i->second.deltaV =  fabs(i->second.curr.potential -  
582 >                                   i->second.prev.potential);
583 >        }      
584 >      }      
585 >      
586 >      for (inversion = mol->beginInversion(inversionIter);
587 >           inversion != NULL;
588 >           inversion = mol->nextInversion(inversionIter)) {
589 >        RealType angle;
590 >        inversion->calcForce(angle, doParticlePot_);
591 >        RealType currInversionPot = inversion->getPotential();
592 >        inversionPotential += inversion->getPotential();
593 >        map<Inversion*, InversionDataSet>::iterator i = inversionDataSets.find(inversion);
594 >        if (i == inversionDataSets.end()) {
595 >          InversionDataSet dataSet;
596 >          dataSet.prev.angle = dataSet.curr.angle = angle;
597 >          dataSet.prev.potential = dataSet.curr.potential = currInversionPot;
598 >          dataSet.deltaV = 0.0;
599 >          inversionDataSets.insert(map<Inversion*, InversionDataSet>::value_type(inversion, dataSet));
600 >        }else {
601 >          i->second.prev.angle = i->second.curr.angle;
602 >          i->second.prev.potential = i->second.curr.potential;
603 >          i->second.curr.angle = angle;
604 >          i->second.curr.potential = currInversionPot;
605 >          i->second.deltaV =  fabs(i->second.curr.potential -  
606 >                                   i->second.prev.potential);
607 >        }      
608 >      }      
609      }
610 <    
611 <    RealType  shortRangePotential = bondPotential + bendPotential + torsionPotential;    
610 >
611 > #ifdef IS_MPI
612 >    // Collect from all nodes.  This should eventually be moved into a
613 >    // SystemDecomposition, but this is a better place than in
614 >    // Thermo to do the collection.
615 >    MPI::COMM_WORLD.Allreduce(MPI::IN_PLACE, &bondPotential, 1, MPI::REALTYPE,
616 >                              MPI::SUM);
617 >    MPI::COMM_WORLD.Allreduce(MPI::IN_PLACE, &bendPotential, 1, MPI::REALTYPE,
618 >                              MPI::SUM);
619 >    MPI::COMM_WORLD.Allreduce(MPI::IN_PLACE, &torsionPotential, 1,
620 >                              MPI::REALTYPE, MPI::SUM);
621 >    MPI::COMM_WORLD.Allreduce(MPI::IN_PLACE, &inversionPotential, 1,
622 >                              MPI::REALTYPE, MPI::SUM);
623 > #endif
624 >
625      Snapshot* curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
626 <    curSnapshot->statData[Stats::SHORT_RANGE_POTENTIAL] = shortRangePotential;
627 <    curSnapshot->statData[Stats::BOND_POTENTIAL] = bondPotential;
628 <    curSnapshot->statData[Stats::BEND_POTENTIAL] = bendPotential;
629 <    curSnapshot->statData[Stats::DIHEDRAL_POTENTIAL] = torsionPotential;
626 >
627 >    curSnapshot->setBondPotential(bondPotential);
628 >    curSnapshot->setBendPotential(bendPotential);
629 >    curSnapshot->setTorsionPotential(torsionPotential);
630 >    curSnapshot->setInversionPotential(inversionPotential);
631      
632 +    // RealType shortRangePotential = bondPotential + bendPotential +
633 +    //   torsionPotential +  inversionPotential;    
634 +
635 +    // curSnapshot->setShortRangePotential(shortRangePotential);
636    }
637 +  
638 +  void ForceManager::longRangeInteractions() {
639  
230  void ForceManager::calcLongRangeInteraction(bool needPotential, bool needStress) {
231    Snapshot* curSnapshot;
232    DataStorage* config;
233    RealType* frc;
234    RealType* pos;
235    RealType* trq;
236    RealType* A;
237    RealType* electroFrame;
238    RealType* rc;
239    
240    //get current snapshot from SimInfo
241    curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
640  
641 <    //get array pointers
642 <    config = &(curSnapshot->atomData);
643 <    frc = config->getArrayPointer(DataStorage::dslForce);
246 <    pos = config->getArrayPointer(DataStorage::dslPosition);
247 <    trq = config->getArrayPointer(DataStorage::dslTorque);
248 <    A   = config->getArrayPointer(DataStorage::dslAmat);
249 <    electroFrame = config->getArrayPointer(DataStorage::dslElectroFrame);
641 >    Snapshot* curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
642 >    DataStorage* config = &(curSnapshot->atomData);
643 >    DataStorage* cgConfig = &(curSnapshot->cgData);
644  
645      //calculate the center of mass of cutoff group
646 +
647      SimInfo::MoleculeIterator mi;
648      Molecule* mol;
649      Molecule::CutoffGroupIterator ci;
650      CutoffGroup* cg;
256    Vector3d com;
257    std::vector<Vector3d> rcGroup;
651  
652 <    if(info_->getNCutoffGroups() > 0){
653 <
654 <      for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
655 <        for(cg = mol->beginCutoffGroup(ci); cg != NULL; cg = mol->nextCutoffGroup(ci)) {
656 <          cg->getCOM(com);
657 <          rcGroup.push_back(com);
652 >    if(info_->getNCutoffGroups() > 0){      
653 >      for (mol = info_->beginMolecule(mi); mol != NULL;
654 >           mol = info_->nextMolecule(mi)) {
655 >        for(cg = mol->beginCutoffGroup(ci); cg != NULL;
656 >            cg = mol->nextCutoffGroup(ci)) {
657 >          cg->updateCOM();
658          }
659 <      }// end for (mol)
267 <      
268 <      rc = rcGroup[0].getArrayPointer();
659 >      }      
660      } else {
661 <      // center of mass of the group is the same as position of the atom  if cutoff group does not exist
662 <      rc = pos;
661 >      // center of mass of the group is the same as position of the atom  
662 >      // if cutoff group does not exist
663 >      cgConfig->position = config->position;
664 >      cgConfig->velocity = config->velocity;
665      }
273  
274    //initialize data before passing to fortran
275    RealType longRangePotential[LR_POT_TYPES];
276    RealType lrPot = 0.0;
277    Vector3d totalDipole;
278    Mat3x3d tau;
279    short int passedCalcPot = needPotential;
280    short int passedCalcStress = needStress;
281    int isError = 0;
666  
667 <    for (int i=0; i<LR_POT_TYPES;i++){
668 <      longRangePotential[i]=0.0; //Initialize array
669 <    }
667 >    fDecomp_->zeroWorkArrays();
668 >    fDecomp_->distributeData();
669 >    
670 >    int cg1, cg2, atom1, atom2, topoDist;
671 >    Vector3d d_grp, dag, d, gvel2, vel2;
672 >    RealType rgrpsq, rgrp, r2, r;
673 >    RealType electroMult, vdwMult;
674 >    RealType vij;
675 >    Vector3d fij, fg, f1;
676 >    tuple3<RealType, RealType, RealType> cuts;
677 >    RealType rCutSq;
678 >    bool in_switching_region;
679 >    RealType sw, dswdr, swderiv;
680 >    vector<int> atomListColumn, atomListRow, atomListLocal;
681 >    InteractionData idat;
682 >    SelfData sdat;
683 >    RealType mf;
684 >    RealType vpair;
685 >    RealType dVdFQ1(0.0);
686 >    RealType dVdFQ2(0.0);
687 >    potVec longRangePotential(0.0);
688 >    potVec workPot(0.0);
689 >    potVec exPot(0.0);
690 >    Vector3d eField1(0.0);
691 >    Vector3d eField2(0.0);
692 >    vector<int>::iterator ia, jb;
693  
694 <    doForceLoop( pos,
288 <                 rc,
289 <                 A,
290 <                 electroFrame,
291 <                 frc,
292 <                 trq,
293 <                 tau.getArrayPointer(),
294 <                 longRangePotential,
295 <                 &passedCalcPot,
296 <                 &passedCalcStress,
297 <                 &isError );
694 >    int loopStart, loopEnd;
695  
696 <    if( isError ){
697 <      sprintf( painCave.errMsg,
698 <               "Error returned from the fortran force calculation.\n" );
699 <      painCave.isFatal = 1;
700 <      simError();
701 <    }
702 <    for (int i=0; i<LR_POT_TYPES;i++){
703 <      lrPot += longRangePotential[i]; //Quick hack
704 <    }
705 <
706 <    // grab the simulation box dipole moment if specified
707 <    if (info_->getCalcBoxDipole()){
708 <      getAccumulatedBoxDipole(totalDipole.getArrayPointer());
696 >    idat.vdwMult = &vdwMult;
697 >    idat.electroMult = &electroMult;
698 >    idat.pot = &workPot;
699 >    idat.excludedPot = &exPot;
700 >    sdat.pot = fDecomp_->getEmbeddingPotential();
701 >    sdat.excludedPot = fDecomp_->getExcludedSelfPotential();
702 >    idat.vpair = &vpair;
703 >    idat.dVdFQ1 = &dVdFQ1;
704 >    idat.dVdFQ2 = &dVdFQ2;
705 >    idat.eField1 = &eField1;
706 >    idat.eField2 = &eField2;  
707 >    idat.f1 = &f1;
708 >    idat.sw = &sw;
709 >    idat.shiftedPot = (cutoffMethod_ == SHIFTED_POTENTIAL) ? true : false;
710 >    idat.shiftedForce = (cutoffMethod_ == SHIFTED_FORCE) ? true : false;
711 >    idat.doParticlePot = doParticlePot_;
712 >    idat.doElectricField = doElectricField_;
713 >    sdat.doParticlePot = doParticlePot_;
714 >    
715 >    loopEnd = PAIR_LOOP;
716 >    if (info_->requiresPrepair() ) {
717 >      loopStart = PREPAIR_LOOP;
718 >    } else {
719 >      loopStart = PAIR_LOOP;
720 >    }
721 >    for (int iLoop = loopStart; iLoop <= loopEnd; iLoop++) {
722 >    
723 >      if (iLoop == loopStart) {
724 >        bool update_nlist = fDecomp_->checkNeighborList();
725 >        if (update_nlist)
726 >          neighborList = fDecomp_->buildNeighborList();
727 >      }            
728  
729 <      curSnapshot->statData[Stats::BOX_DIPOLE_X] = totalDipole(0);
730 <      curSnapshot->statData[Stats::BOX_DIPOLE_Y] = totalDipole(1);
731 <      curSnapshot->statData[Stats::BOX_DIPOLE_Z] = totalDipole(2);
729 >      for (vector<pair<int, int> >::iterator it = neighborList.begin();
730 >             it != neighborList.end(); ++it) {
731 >                
732 >        cg1 = (*it).first;
733 >        cg2 = (*it).second;
734 >        
735 >        cuts = fDecomp_->getGroupCutoffs(cg1, cg2);
736 >
737 >        d_grp  = fDecomp_->getIntergroupVector(cg1, cg2);
738 >
739 >        curSnapshot->wrapVector(d_grp);        
740 >        rgrpsq = d_grp.lengthSquare();
741 >        rCutSq = cuts.second;
742 >
743 >        if (rgrpsq < rCutSq) {
744 >          idat.rcut = &cuts.first;
745 >          if (iLoop == PAIR_LOOP) {
746 >            vij = 0.0;
747 >            fij = V3Zero;
748 >          }
749 >          
750 >          in_switching_region = switcher_->getSwitch(rgrpsq, sw, dswdr,
751 >                                                     rgrp);
752 >
753 >          atomListRow = fDecomp_->getAtomsInGroupRow(cg1);
754 >          atomListColumn = fDecomp_->getAtomsInGroupColumn(cg2);
755 >
756 >          if (doHeatFlux_)
757 >            gvel2 = fDecomp_->getGroupVelocityColumn(cg2);
758 >
759 >          for (ia = atomListRow.begin();
760 >               ia != atomListRow.end(); ++ia) {            
761 >            atom1 = (*ia);
762 >
763 >            for (jb = atomListColumn.begin();
764 >                 jb != atomListColumn.end(); ++jb) {              
765 >              atom2 = (*jb);
766 >
767 >              if (!fDecomp_->skipAtomPair(atom1, atom2, cg1, cg2)) {
768 >
769 >                vpair = 0.0;
770 >                workPot = 0.0;
771 >                exPot = 0.0;
772 >                f1 = V3Zero;
773 >                dVdFQ1 = 0.0;
774 >                dVdFQ2 = 0.0;
775 >
776 >                fDecomp_->fillInteractionData(idat, atom1, atom2);
777 >
778 >                topoDist = fDecomp_->getTopologicalDistance(atom1, atom2);
779 >                vdwMult = vdwScale_[topoDist];
780 >                electroMult = electrostaticScale_[topoDist];
781 >
782 >                if (atomListRow.size() == 1 && atomListColumn.size() == 1) {
783 >                  idat.d = &d_grp;
784 >                  idat.r2 = &rgrpsq;
785 >                  if (doHeatFlux_)
786 >                    vel2 = gvel2;
787 >                } else {
788 >                  d = fDecomp_->getInteratomicVector(atom1, atom2);
789 >                  curSnapshot->wrapVector( d );
790 >                  r2 = d.lengthSquare();
791 >                  idat.d = &d;
792 >                  idat.r2 = &r2;
793 >                  if (doHeatFlux_)
794 >                    vel2 = fDecomp_->getAtomVelocityColumn(atom2);
795 >                }
796 >              
797 >                r = sqrt( *(idat.r2) );
798 >                idat.rij = &r;
799 >              
800 >                if (iLoop == PREPAIR_LOOP) {
801 >                  interactionMan_->doPrePair(idat);
802 >                } else {
803 >                  interactionMan_->doPair(idat);
804 >                  fDecomp_->unpackInteractionData(idat, atom1, atom2);
805 >                  vij += vpair;
806 >                  fij += f1;
807 >                  stressTensor -= outProduct( *(idat.d), f1);
808 >                  if (doHeatFlux_)
809 >                    fDecomp_->addToHeatFlux(*(idat.d) * dot(f1, vel2));
810 >                }
811 >              }
812 >            }
813 >          }
814 >
815 >          if (iLoop == PAIR_LOOP) {
816 >            if (in_switching_region) {
817 >              swderiv = vij * dswdr / rgrp;
818 >              fg = swderiv * d_grp;
819 >              fij += fg;
820 >
821 >              if (atomListRow.size() == 1 && atomListColumn.size() == 1) {
822 >                stressTensor -= outProduct( *(idat.d), fg);
823 >                if (doHeatFlux_)
824 >                  fDecomp_->addToHeatFlux(*(idat.d) * dot(fg, vel2));
825 >                
826 >              }
827 >          
828 >              for (ia = atomListRow.begin();
829 >                   ia != atomListRow.end(); ++ia) {            
830 >                atom1 = (*ia);                
831 >                mf = fDecomp_->getMassFactorRow(atom1);
832 >                // fg is the force on atom ia due to cutoff group's
833 >                // presence in switching region
834 >                fg = swderiv * d_grp * mf;
835 >                fDecomp_->addForceToAtomRow(atom1, fg);
836 >                if (atomListRow.size() > 1) {
837 >                  if (info_->usesAtomicVirial()) {
838 >                    // find the distance between the atom
839 >                    // and the center of the cutoff group:
840 >                    dag = fDecomp_->getAtomToGroupVectorRow(atom1, cg1);
841 >                    stressTensor -= outProduct(dag, fg);
842 >                    if (doHeatFlux_)
843 >                      fDecomp_->addToHeatFlux( dag * dot(fg, vel2));
844 >                  }
845 >                }
846 >              }
847 >              for (jb = atomListColumn.begin();
848 >                   jb != atomListColumn.end(); ++jb) {              
849 >                atom2 = (*jb);
850 >                mf = fDecomp_->getMassFactorColumn(atom2);
851 >                // fg is the force on atom jb due to cutoff group's
852 >                // presence in switching region
853 >                fg = -swderiv * d_grp * mf;
854 >                fDecomp_->addForceToAtomColumn(atom2, fg);
855 >
856 >                if (atomListColumn.size() > 1) {
857 >                  if (info_->usesAtomicVirial()) {
858 >                    // find the distance between the atom
859 >                    // and the center of the cutoff group:
860 >                    dag = fDecomp_->getAtomToGroupVectorColumn(atom2, cg2);
861 >                    stressTensor -= outProduct(dag, fg);
862 >                    if (doHeatFlux_)
863 >                      fDecomp_->addToHeatFlux( dag * dot(fg, vel2));
864 >                  }
865 >                }
866 >              }
867 >            }
868 >            //if (!info_->usesAtomicVirial()) {
869 >            //  stressTensor -= outProduct(d_grp, fij);
870 >            //  if (doHeatFlux_)
871 >            //     fDecomp_->addToHeatFlux( d_grp * dot(fij, vel2));
872 >            //}
873 >          }
874 >        }
875 >      }
876 >
877 >      if (iLoop == PREPAIR_LOOP) {
878 >        if (info_->requiresPrepair()) {
879 >
880 >          fDecomp_->collectIntermediateData();
881 >
882 >          for (unsigned int atom1 = 0; atom1 < info_->getNAtoms(); atom1++) {
883 >            fDecomp_->fillSelfData(sdat, atom1);
884 >            interactionMan_->doPreForce(sdat);
885 >          }
886 >
887 >          fDecomp_->distributeIntermediateData();
888 >
889 >        }
890 >      }
891      }
892 +    
893 +    // collects pairwise information
894 +    fDecomp_->collectData();
895 +        
896 +    if (info_->requiresSelfCorrection()) {
897 +      for (unsigned int atom1 = 0; atom1 < info_->getNAtoms(); atom1++) {
898 +        fDecomp_->fillSelfData(sdat, atom1);
899 +        interactionMan_->doSelfCorrection(sdat);
900 +      }
901 +    }
902  
903 <    //store the tau and long range potential    
904 <    curSnapshot->statData[Stats::LONG_RANGE_POTENTIAL] = lrPot;
320 <    curSnapshot->statData[Stats::VANDERWAALS_POTENTIAL] = longRangePotential[VDW_POT];
321 <    curSnapshot->statData[Stats::ELECTROSTATIC_POTENTIAL] = longRangePotential[ELECTROSTATIC_POT];
903 >    // collects single-atom information
904 >    fDecomp_->collectSelfData();
905  
906 <    curSnapshot->statData.setTau(tau);
907 <  }
906 >    longRangePotential = *(fDecomp_->getEmbeddingPotential()) +
907 >      *(fDecomp_->getPairwisePotential());
908  
909 +    curSnapshot->setLongRangePotential(longRangePotential);
910  
911 +    // collects single-atom information
912 +    fDecomp_->collectSelfData();
913 +
914 +    longRangePotential = *(fDecomp_->getEmbeddingPotential()) +
915 +      *(fDecomp_->getPairwisePotential());
916 +
917 +    curSnapshot->setLongRangePotential(longRangePotential);
918 +    
919 +    curSnapshot->setExcludedPotentials(*(fDecomp_->getExcludedSelfPotential()) +
920 +                                         *(fDecomp_->getExcludedPotential()));
921 +
922 +  }
923 +
924 +  
925    void ForceManager::postCalculation() {
926 +
927 +    vector<Perturbation*>::iterator pi;
928 +    for (pi = perturbations_.begin(); pi != perturbations_.end(); ++pi) {
929 +      (*pi)->applyPerturbation();
930 +    }
931 +
932      SimInfo::MoleculeIterator mi;
933      Molecule* mol;
934      Molecule::RigidBodyIterator rbIter;
935      RigidBody* rb;
936 <    
936 >    Snapshot* curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
937 >  
938      // collect the atomic forces onto rigid bodies
939 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
940 <      for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
941 <        rb->calcForcesAndTorques();
939 >    
940 >    for (mol = info_->beginMolecule(mi); mol != NULL;
941 >         mol = info_->nextMolecule(mi)) {
942 >      for (rb = mol->beginRigidBody(rbIter); rb != NULL;
943 >           rb = mol->nextRigidBody(rbIter)) {
944 >        Mat3x3d rbTau = rb->calcForcesAndTorquesAndVirial();
945 >        stressTensor += rbTau;
946        }
947 <    }    
948 <
947 >    }
948 >    
949 > #ifdef IS_MPI
950 >    MPI::COMM_WORLD.Allreduce(MPI::IN_PLACE, stressTensor.getArrayPointer(), 9,
951 >                              MPI::REALTYPE, MPI::SUM);
952 > #endif
953 >    curSnapshot->setStressTensor(stressTensor);
954 >    
955    }
956 <
342 < } //end namespace oopse
956 > } //end namespace OpenMD

Comparing:
trunk/src/brains/ForceManager.cpp (property svn:keywords), Revision 998 by chrisfen, Mon Jul 3 13:18:43 2006 UTC vs.
branches/development/src/brains/ForceManager.cpp (property svn:keywords), Revision 1808 by gezelter, Mon Oct 22 20:42:10 2012 UTC

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