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Comparing trunk/src/brains/ForceManager.cpp (file contents):
Revision 665 by tim, Thu Oct 13 22:26:47 2005 UTC vs.
Revision 2067 by gezelter, Thu Mar 5 15:35:37 2015 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, 234107 (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 < namespace oopse {
55 > #include "primitives/Bond.hpp"
56 > #include "primitives/Bend.hpp"
57 > #include "primitives/Torsion.hpp"
58 > #include "primitives/Inversion.hpp"
59 > #include "nonbonded/NonBondedInteraction.hpp"
60 > #include "perturbations/UniformField.hpp"
61 > #include "perturbations/UniformGradient.hpp"
62 > #include "parallel/ForceMatrixDecomposition.hpp"
63  
64 <  void ForceManager::calcForces(bool needPotential, bool needStress) {
64 > #include <cstdio>
65 > #include <iostream>
66 > #include <iomanip>
67  
68 <    if (!info_->isFortranInitialized()) {
69 <      info_->update();
70 <    }
68 > using namespace std;
69 > namespace OpenMD {
70 >  
71 >  ForceManager::ForceManager(SimInfo * info) : initialized_(false), info_(info),
72 >                                               switcher_(NULL) {
73 >    forceField_ = info_->getForceField();
74 >    interactionMan_ = new InteractionManager();
75 >    fDecomp_ = new ForceMatrixDecomposition(info_, interactionMan_);
76 >    thermo = new Thermo(info_);
77 >  }
78  
79 <    preCalculation();
79 >  ForceManager::~ForceManager() {
80 >    perturbations_.clear();
81      
82 <    calcShortRangeInteraction();
82 >    delete switcher_;
83 >    delete interactionMan_;
84 >    delete fDecomp_;
85 >    delete thermo;
86 >  }
87 >  
88 >  /**
89 >   * setupCutoffs
90 >   *
91 >   * Sets the values of cutoffRadius, switchingRadius, and cutoffMethod
92 >   *
93 >   * cutoffRadius : realType
94 >   *  If the cutoffRadius was explicitly set, use that value.
95 >   *  If the cutoffRadius was not explicitly set:
96 >   *      Are there electrostatic atoms?  Use 12.0 Angstroms.
97 >   *      No electrostatic atoms?  Poll the atom types present in the
98 >   *      simulation for suggested cutoff values (e.g. 2.5 * sigma).
99 >   *      Use the maximum suggested value that was found.
100 >   *
101 >   * cutoffMethod : (one of HARD, SWITCHED, SHIFTED_FORCE, TAYLOR_SHIFTED,
102 >   *                        SHIFTED_POTENTIAL, or EWALD_FULL)
103 >   *      If cutoffMethod was explicitly set, use that choice.
104 >   *      If cutoffMethod was not explicitly set, use SHIFTED_FORCE
105 >   *
106 >   * switchingRadius : realType
107 >   *  If the cutoffMethod was set to SWITCHED:
108 >   *      If the switchingRadius was explicitly set, use that value
109 >   *          (but do a sanity check first).
110 >   *      If the switchingRadius was not explicitly set: use 0.85 *
111 >   *      cutoffRadius_
112 >   *  If the cutoffMethod was not set to SWITCHED:
113 >   *      Set switchingRadius equal to cutoffRadius for safety.
114 >   */
115 >  void ForceManager::setupCutoffs() {
116 >    
117 >    Globals* simParams_ = info_->getSimParams();
118 >    int mdFileVersion;
119 >    rCut_ = 0.0; //Needs a value for a later max() call;  
120 >    
121 >    if (simParams_->haveMDfileVersion())
122 >      mdFileVersion = simParams_->getMDfileVersion();
123 >    else
124 >      mdFileVersion = 0;
125 >  
126 >    // We need the list of simulated atom types to figure out cutoffs
127 >    // as well as long range corrections.
128  
129 <    calcLongRangeInteraction(needPotential, needStress);
129 >    set<AtomType*>::iterator i;
130 >    set<AtomType*> atomTypes_;
131 >    atomTypes_ = info_->getSimulatedAtomTypes();
132  
133 <    postCalculation();
133 >    if (simParams_->haveCutoffRadius()) {
134 >      rCut_ = simParams_->getCutoffRadius();
135 >    } else {      
136 >      if (info_->usesElectrostaticAtoms()) {
137 >        sprintf(painCave.errMsg,
138 >                "ForceManager::setupCutoffs: No value was set for the cutoffRadius.\n"
139 >                "\tOpenMD will use a default value of 12.0 angstroms"
140 >                "\tfor the cutoffRadius.\n");
141 >        painCave.isFatal = 0;
142 >        painCave.severity = OPENMD_INFO;
143 >        simError();
144 >        rCut_ = 12.0;
145 >      } else {
146 >        RealType thisCut;
147 >        for (i = atomTypes_.begin(); i != atomTypes_.end(); ++i) {
148 >          thisCut = interactionMan_->getSuggestedCutoffRadius((*i));
149 >          rCut_ = max(thisCut, rCut_);
150 >        }
151 >        sprintf(painCave.errMsg,
152 >                "ForceManager::setupCutoffs: No value was set for the cutoffRadius.\n"
153 >                "\tOpenMD will use %lf angstroms.\n",
154 >                rCut_);
155 >        painCave.isFatal = 0;
156 >        painCave.severity = OPENMD_INFO;
157 >        simError();
158 >      }
159 >    }
160 >
161 >    fDecomp_->setCutoffRadius(rCut_);
162 >    interactionMan_->setCutoffRadius(rCut_);
163 >    rCutSq_ = rCut_ * rCut_;
164 >
165 >    map<string, CutoffMethod> stringToCutoffMethod;
166 >    stringToCutoffMethod["HARD"] = HARD;
167 >    stringToCutoffMethod["SWITCHED"] = SWITCHED;
168 >    stringToCutoffMethod["SHIFTED_POTENTIAL"] = SHIFTED_POTENTIAL;    
169 >    stringToCutoffMethod["SHIFTED_FORCE"] = SHIFTED_FORCE;
170 >    stringToCutoffMethod["TAYLOR_SHIFTED"] = TAYLOR_SHIFTED;
171 >    stringToCutoffMethod["EWALD_FULL"] = EWALD_FULL;
172 >  
173 >    if (simParams_->haveCutoffMethod()) {
174 >      string cutMeth = toUpperCopy(simParams_->getCutoffMethod());
175 >      map<string, CutoffMethod>::iterator i;
176 >      i = stringToCutoffMethod.find(cutMeth);
177 >      if (i == stringToCutoffMethod.end()) {
178 >        sprintf(painCave.errMsg,
179 >                "ForceManager::setupCutoffs: Could not find chosen cutoffMethod %s\n"
180 >                "\tShould be one of: "
181 >                "HARD, SWITCHED, SHIFTED_POTENTIAL, TAYLOR_SHIFTED,\n"
182 >                "\tSHIFTED_FORCE, or EWALD_FULL\n",
183 >                cutMeth.c_str());
184 >        painCave.isFatal = 1;
185 >        painCave.severity = OPENMD_ERROR;
186 >        simError();
187 >      } else {
188 >        cutoffMethod_ = i->second;
189 >      }
190 >    } else {
191 >      if (mdFileVersion > 1) {
192 >        sprintf(painCave.errMsg,
193 >                "ForceManager::setupCutoffs: No value was set for the cutoffMethod.\n"
194 >                "\tOpenMD will use SHIFTED_FORCE.\n");
195 >        painCave.isFatal = 0;
196 >        painCave.severity = OPENMD_INFO;
197 >        simError();
198 >        cutoffMethod_ = SHIFTED_FORCE;        
199 >      } else {
200 >        // handle the case where the old file version was in play
201 >        // (there should be no cutoffMethod, so we have to deduce it
202 >        // from other data).        
203 >
204 >        sprintf(painCave.errMsg,
205 >                "ForceManager::setupCutoffs : DEPRECATED FILE FORMAT!\n"
206 >                "\tOpenMD found a file which does not set a cutoffMethod.\n"
207 >                "\tOpenMD will attempt to deduce a cutoffMethod using the\n"
208 >                "\tbehavior of the older (version 1) code.  To remove this\n"
209 >                "\twarning, add an explicit cutoffMethod and change the top\n"
210 >                "\tof the file so that it begins with <OpenMD version=2>\n");
211 >        painCave.isFatal = 0;
212 >        painCave.severity = OPENMD_WARNING;
213 >        simError();            
214 >                
215 >        // The old file version tethered the shifting behavior to the
216 >        // electrostaticSummationMethod keyword.
217          
218 +        if (simParams_->haveElectrostaticSummationMethod()) {
219 +          string myMethod = simParams_->getElectrostaticSummationMethod();
220 +          toUpper(myMethod);
221 +        
222 +          if (myMethod == "SHIFTED_POTENTIAL") {
223 +            cutoffMethod_ = SHIFTED_POTENTIAL;
224 +          } else if (myMethod == "SHIFTED_FORCE") {
225 +            cutoffMethod_ = SHIFTED_FORCE;
226 +          } else if (myMethod == "TAYLOR_SHIFTED") {
227 +            cutoffMethod_ = TAYLOR_SHIFTED;
228 +          } else if (myMethod == "EWALD_FULL") {
229 +            cutoffMethod_ = EWALD_FULL;
230 +          }
231 +        
232 +          if (simParams_->haveSwitchingRadius())
233 +            rSwitch_ = simParams_->getSwitchingRadius();
234 +
235 +          if (myMethod == "SHIFTED_POTENTIAL" || myMethod == "SHIFTED_FORCE" ||
236 +              myMethod == "TAYLOR_SHIFTED" || myMethod == "EWALD_FULL") {
237 +            if (simParams_->haveSwitchingRadius()){
238 +              sprintf(painCave.errMsg,
239 +                      "ForceManager::setupCutoffs : DEPRECATED ERROR MESSAGE\n"
240 +                      "\tA value was set for the switchingRadius\n"
241 +                      "\teven though the electrostaticSummationMethod was\n"
242 +                      "\tset to %s\n", myMethod.c_str());
243 +              painCave.severity = OPENMD_WARNING;
244 +              painCave.isFatal = 1;
245 +              simError();            
246 +            }
247 +          }
248 +          if (abs(rCut_ - rSwitch_) < 0.0001) {
249 +            if (cutoffMethod_ == SHIFTED_FORCE) {              
250 +              sprintf(painCave.errMsg,
251 +                      "ForceManager::setupCutoffs : DEPRECATED BEHAVIOR\n"
252 +                      "\tcutoffRadius and switchingRadius are set to the\n"
253 +                      "\tsame value.  OpenMD will use shifted force\n"
254 +                      "\tpotentials instead of switching functions.\n");
255 +              painCave.isFatal = 0;
256 +              painCave.severity = OPENMD_WARNING;
257 +              simError();            
258 +            } else {
259 +              cutoffMethod_ = SHIFTED_POTENTIAL;
260 +              sprintf(painCave.errMsg,
261 +                      "ForceManager::setupCutoffs : DEPRECATED BEHAVIOR\n"
262 +                      "\tcutoffRadius and switchingRadius are set to the\n"
263 +                      "\tsame value.  OpenMD will use shifted potentials\n"
264 +                      "\tinstead of switching functions.\n");
265 +              painCave.isFatal = 0;
266 +              painCave.severity = OPENMD_WARNING;
267 +              simError();            
268 +            }
269 +          }
270 +        }
271 +      }
272 +    }
273 +        
274 +    // create the switching function object:
275 +
276 +    switcher_ = new SwitchingFunction();
277 +  
278 +    if (cutoffMethod_ == SWITCHED) {
279 +      if (simParams_->haveSwitchingRadius()) {
280 +        rSwitch_ = simParams_->getSwitchingRadius();
281 +        if (rSwitch_ > rCut_) {        
282 +          sprintf(painCave.errMsg,
283 +                  "ForceManager::setupCutoffs: switchingRadius (%f) is larger "
284 +                  "than the cutoffRadius(%f)\n", rSwitch_, rCut_);
285 +          painCave.isFatal = 1;
286 +          painCave.severity = OPENMD_ERROR;
287 +          simError();
288 +        }
289 +      } else {      
290 +        rSwitch_ = 0.85 * rCut_;
291 +        sprintf(painCave.errMsg,
292 +                "ForceManager::setupCutoffs: No value was set for the switchingRadius.\n"
293 +                "\tOpenMD will use a default value of 85 percent of the cutoffRadius.\n"
294 +                "\tswitchingRadius = %f. for this simulation\n", rSwitch_);
295 +        painCave.isFatal = 0;
296 +        painCave.severity = OPENMD_WARNING;
297 +        simError();
298 +      }
299 +    } else {
300 +      if (mdFileVersion > 1) {
301 +        // throw an error if we define a switching radius and don't need one.
302 +        // older file versions should not do this.
303 +        if (simParams_->haveSwitchingRadius()) {
304 +          map<string, CutoffMethod>::const_iterator it;
305 +          string theMeth;
306 +          for (it = stringToCutoffMethod.begin();
307 +               it != stringToCutoffMethod.end(); ++it) {
308 +            if (it->second == cutoffMethod_) {
309 +              theMeth = it->first;
310 +              break;
311 +            }
312 +          }
313 +          sprintf(painCave.errMsg,
314 +                  "ForceManager::setupCutoffs: the cutoffMethod (%s)\n"
315 +                  "\tis not set to SWITCHED, so switchingRadius value\n"
316 +                  "\twill be ignored for this simulation\n", theMeth.c_str());
317 +          painCave.isFatal = 0;
318 +          painCave.severity = OPENMD_WARNING;
319 +          simError();
320 +        }
321 +      }
322 +      rSwitch_ = rCut_;
323 +    }
324 +    
325 +    // Default to cubic switching function.
326 +    sft_ = cubic;
327 +    if (simParams_->haveSwitchingFunctionType()) {
328 +      string funcType = simParams_->getSwitchingFunctionType();
329 +      toUpper(funcType);
330 +      if (funcType == "CUBIC") {
331 +        sft_ = cubic;
332 +      } else {
333 +        if (funcType == "FIFTH_ORDER_POLYNOMIAL") {
334 +          sft_ = fifth_order_poly;
335 +        } else {
336 +          // throw error        
337 +          sprintf( painCave.errMsg,
338 +                   "ForceManager::setupSwitching : Unknown switchingFunctionType. (Input file specified %s .)\n"
339 +                   "\tswitchingFunctionType must be one of: "
340 +                   "\"cubic\" or \"fifth_order_polynomial\".",
341 +                   funcType.c_str() );
342 +          painCave.isFatal = 1;
343 +          painCave.severity = OPENMD_ERROR;
344 +          simError();
345 +        }          
346 +      }
347 +    }
348 +    switcher_->setSwitchType(sft_);
349 +    switcher_->setSwitch(rSwitch_, rCut_);
350    }
351  
352 +  void ForceManager::initialize() {
353 +
354 +    if (!info_->isTopologyDone()) {
355 +
356 +      info_->update();
357 +      interactionMan_->setSimInfo(info_);
358 +      interactionMan_->initialize();
359 +
360 +      //! We want to delay the cutoffs until after the interaction
361 +      //! manager has set up the atom-atom interactions so that we can
362 +      //! query them for suggested cutoff values
363 +      setupCutoffs();
364 +
365 +      info_->prepareTopology();      
366 +
367 +      doParticlePot_ = info_->getSimParams()->getOutputParticlePotential();
368 +      doHeatFlux_ = info_->getSimParams()->getPrintHeatFlux();
369 +      if (doHeatFlux_) doParticlePot_ = true;
370 +
371 +      doElectricField_ = info_->getSimParams()->getOutputElectricField();
372 +      doSitePotential_ = info_->getSimParams()->getOutputSitePotential();
373 +  
374 +    }
375 +
376 +    ForceFieldOptions& fopts = forceField_->getForceFieldOptions();
377 +    
378 +    //! Force fields can set options on how to scale van der Waals and
379 +    //! electrostatic interactions for atoms connected via bonds, bends
380 +    //! and torsions in this case the topological distance between
381 +    //! atoms is:
382 +    //! 0 = topologically unconnected
383 +    //! 1 = bonded together
384 +    //! 2 = connected via a bend
385 +    //! 3 = connected via a torsion
386 +    
387 +    vdwScale_.reserve(4);
388 +    fill(vdwScale_.begin(), vdwScale_.end(), 0.0);
389 +
390 +    electrostaticScale_.reserve(4);
391 +    fill(electrostaticScale_.begin(), electrostaticScale_.end(), 0.0);
392 +
393 +    vdwScale_[0] = 1.0;
394 +    vdwScale_[1] = fopts.getvdw12scale();
395 +    vdwScale_[2] = fopts.getvdw13scale();
396 +    vdwScale_[3] = fopts.getvdw14scale();
397 +    
398 +    electrostaticScale_[0] = 1.0;
399 +    electrostaticScale_[1] = fopts.getelectrostatic12scale();
400 +    electrostaticScale_[2] = fopts.getelectrostatic13scale();
401 +    electrostaticScale_[3] = fopts.getelectrostatic14scale();    
402 +    
403 +    if (info_->getSimParams()->haveUniformField()) {
404 +      UniformField* eField = new UniformField(info_);
405 +      perturbations_.push_back(eField);
406 +    }
407 +    if (info_->getSimParams()->haveUniformGradientStrength() ||
408 +        info_->getSimParams()->haveUniformGradientDirection1() ||
409 +        info_->getSimParams()->haveUniformGradientDirection2() ) {
410 +      UniformGradient* eGrad = new UniformGradient(info_);
411 +      perturbations_.push_back(eGrad);
412 +    }
413 +    
414 +    usePeriodicBoundaryConditions_ = info_->getSimParams()->getUsePeriodicBoundaryConditions();
415 +    
416 +    fDecomp_->distributeInitialData();
417 +    
418 +    initialized_ = true;
419 +    
420 +  }
421 +  
422 +  void ForceManager::calcForces() {
423 +    
424 +    if (!initialized_) initialize();
425 +    
426 +    preCalculation();  
427 +    shortRangeInteractions();
428 +    longRangeInteractions();
429 +    postCalculation();    
430 +  }
431 +  
432    void ForceManager::preCalculation() {
433      SimInfo::MoleculeIterator mi;
434      Molecule* mol;
# Line 78 | Line 436 | namespace oopse {
436      Atom* atom;
437      Molecule::RigidBodyIterator rbIter;
438      RigidBody* rb;
439 +    Molecule::CutoffGroupIterator ci;
440 +    CutoffGroup* cg;
441      
442 <    // forces are zeroed here, before any are accumulated.
443 <    // NOTE: do not rezero the forces in Fortran.
444 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
445 <      for(atom = mol->beginAtom(ai); atom != NULL; atom = mol->nextAtom(ai)) {
442 >    // forces and potentials are zeroed here, before any are
443 >    // accumulated.
444 >    
445 >    Snapshot* snap = info_->getSnapshotManager()->getCurrentSnapshot();
446 >
447 >    snap->setBondPotential(0.0);
448 >    snap->setBendPotential(0.0);
449 >    snap->setTorsionPotential(0.0);
450 >    snap->setInversionPotential(0.0);
451 >
452 >    potVec zeroPot(0.0);
453 >    snap->setLongRangePotential(zeroPot);
454 >    snap->setExcludedPotentials(zeroPot);
455 >
456 >    snap->setRestraintPotential(0.0);
457 >    snap->setRawPotential(0.0);
458 >
459 >    for (mol = info_->beginMolecule(mi); mol != NULL;
460 >         mol = info_->nextMolecule(mi)) {
461 >      for(atom = mol->beginAtom(ai); atom != NULL;
462 >          atom = mol->nextAtom(ai)) {
463          atom->zeroForcesAndTorques();
464        }
465 <        
465 >      
466        //change the positions of atoms which belong to the rigidbodies
467 <      for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
467 >      for (rb = mol->beginRigidBody(rbIter); rb != NULL;
468 >           rb = mol->nextRigidBody(rbIter)) {
469          rb->zeroForcesAndTorques();
470        }        
471 +      
472 +      if(info_->getNGlobalCutoffGroups() != info_->getNGlobalAtoms()){
473 +        for(cg = mol->beginCutoffGroup(ci); cg != NULL;
474 +            cg = mol->nextCutoffGroup(ci)) {
475 +          //calculate the center of mass of cutoff group
476 +          cg->updateCOM();
477 +        }
478 +      }      
479      }
480      
481 +    // Zero out the stress tensor
482 +    stressTensor *= 0.0;
483 +    // Zero out the heatFlux
484 +    fDecomp_->setHeatFlux( Vector3d(0.0) );    
485    }
486 <
487 <  void ForceManager::calcShortRangeInteraction() {
486 >  
487 >  void ForceManager::shortRangeInteractions() {
488      Molecule* mol;
489      RigidBody* rb;
490      Bond* bond;
491      Bend* bend;
492      Torsion* torsion;
493 +    Inversion* inversion;
494      SimInfo::MoleculeIterator mi;
495      Molecule::RigidBodyIterator rbIter;
496      Molecule::BondIterator bondIter;;
497      Molecule::BendIterator  bendIter;
498      Molecule::TorsionIterator  torsionIter;
499 +    Molecule::InversionIterator  inversionIter;
500 +    RealType bondPotential = 0.0;
501 +    RealType bendPotential = 0.0;
502 +    RealType torsionPotential = 0.0;
503 +    RealType inversionPotential = 0.0;
504  
505      //calculate short range interactions    
506 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
506 >    for (mol = info_->beginMolecule(mi); mol != NULL;
507 >         mol = info_->nextMolecule(mi)) {
508  
509        //change the positions of atoms which belong to the rigidbodies
510 <      for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
511 <        rb->updateAtoms();
510 >      for (rb = mol->beginRigidBody(rbIter); rb != NULL;
511 >           rb = mol->nextRigidBody(rbIter)) {
512 >        rb->updateAtoms();
513        }
514  
515 <      for (bond = mol->beginBond(bondIter); bond != NULL; bond = mol->nextBond(bondIter)) {
516 <        bond->calcForce();
515 >      for (bond = mol->beginBond(bondIter); bond != NULL;
516 >           bond = mol->nextBond(bondIter)) {
517 >        bond->calcForce(doParticlePot_);
518 >        bondPotential += bond->getPotential();
519        }
520  
521 <      for (bend = mol->beginBend(bendIter); bend != NULL; bend = mol->nextBend(bendIter)) {
522 <        bend->calcForce();
523 <      }
524 <
525 <      for (torsion = mol->beginTorsion(torsionIter); torsion != NULL; torsion = mol->nextTorsion(torsionIter)) {
526 <        torsion->calcForce();
527 <      }
528 <
529 <    }
530 <    
531 <
532 <    double bondPotential = 0.0;
533 <    double bendPotential = 0.0;
534 <    double torsionPotential = 0.0;
535 <
536 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
537 <
538 <      for (bond = mol->beginBond(bondIter); bond != NULL; bond = mol->nextBond(bondIter)) {
539 <          bondPotential += bond->getPotential();
540 <      }
541 <
542 <      for (bend = mol->beginBend(bendIter); bend != NULL; bend = mol->nextBend(bendIter)) {
543 <          bendPotential += bend->getPotential();
544 <      }
545 <
546 <      for (torsion = mol->beginTorsion(torsionIter); torsion != NULL; torsion = mol->nextTorsion(torsionIter)) {
547 <          torsionPotential += torsion->getPotential();
548 <      }
549 <
550 <    }    
551 <
552 <    double  shortRangePotential = bondPotential + bendPotential + torsionPotential;    
553 <    Snapshot* curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
554 <    curSnapshot->statData[Stats::SHORT_RANGE_POTENTIAL] = shortRangePotential;
555 <    curSnapshot->statData[Stats::BOND_POTENTIAL] = bondPotential;
556 <    curSnapshot->statData[Stats::BEND_POTENTIAL] = bendPotential;
557 <    curSnapshot->statData[Stats::DIHEDRAL_POTENTIAL] = torsionPotential;
558 <    
559 <  }
521 >      for (bend = mol->beginBend(bendIter); bend != NULL;
522 >           bend = mol->nextBend(bendIter)) {
523 >        
524 >        RealType angle;
525 >        bend->calcForce(angle, doParticlePot_);
526 >        RealType currBendPot = bend->getPotential();          
527 >        
528 >        bendPotential += bend->getPotential();
529 >        map<Bend*, BendDataSet>::iterator i = bendDataSets.find(bend);
530 >        if (i == bendDataSets.end()) {
531 >          BendDataSet dataSet;
532 >          dataSet.prev.angle = dataSet.curr.angle = angle;
533 >          dataSet.prev.potential = dataSet.curr.potential = currBendPot;
534 >          dataSet.deltaV = 0.0;
535 >          bendDataSets.insert(map<Bend*, BendDataSet>::value_type(bend,
536 >                                                                  dataSet));
537 >        }else {
538 >          i->second.prev.angle = i->second.curr.angle;
539 >          i->second.prev.potential = i->second.curr.potential;
540 >          i->second.curr.angle = angle;
541 >          i->second.curr.potential = currBendPot;
542 >          i->second.deltaV =  fabs(i->second.curr.potential -  
543 >                                   i->second.prev.potential);
544 >        }
545 >      }
546 >      
547 >      for (torsion = mol->beginTorsion(torsionIter); torsion != NULL;
548 >           torsion = mol->nextTorsion(torsionIter)) {
549 >        RealType angle;
550 >        torsion->calcForce(angle, doParticlePot_);
551 >        RealType currTorsionPot = torsion->getPotential();
552 >        torsionPotential += torsion->getPotential();
553 >        map<Torsion*, TorsionDataSet>::iterator i = torsionDataSets.find(torsion);
554 >        if (i == torsionDataSets.end()) {
555 >          TorsionDataSet dataSet;
556 >          dataSet.prev.angle = dataSet.curr.angle = angle;
557 >          dataSet.prev.potential = dataSet.curr.potential = currTorsionPot;
558 >          dataSet.deltaV = 0.0;
559 >          torsionDataSets.insert(map<Torsion*, TorsionDataSet>::value_type(torsion, dataSet));
560 >        }else {
561 >          i->second.prev.angle = i->second.curr.angle;
562 >          i->second.prev.potential = i->second.curr.potential;
563 >          i->second.curr.angle = angle;
564 >          i->second.curr.potential = currTorsionPot;
565 >          i->second.deltaV =  fabs(i->second.curr.potential -  
566 >                                   i->second.prev.potential);
567 >        }      
568 >      }      
569 >      
570 >      for (inversion = mol->beginInversion(inversionIter);
571 >           inversion != NULL;
572 >           inversion = mol->nextInversion(inversionIter)) {
573 >        RealType angle;
574 >        inversion->calcForce(angle, doParticlePot_);
575 >        RealType currInversionPot = inversion->getPotential();
576 >        inversionPotential += inversion->getPotential();
577 >        map<Inversion*, InversionDataSet>::iterator i = inversionDataSets.find(inversion);
578 >        if (i == inversionDataSets.end()) {
579 >          InversionDataSet dataSet;
580 >          dataSet.prev.angle = dataSet.curr.angle = angle;
581 >          dataSet.prev.potential = dataSet.curr.potential = currInversionPot;
582 >          dataSet.deltaV = 0.0;
583 >          inversionDataSets.insert(map<Inversion*, InversionDataSet>::value_type(inversion, dataSet));
584 >        }else {
585 >          i->second.prev.angle = i->second.curr.angle;
586 >          i->second.prev.potential = i->second.curr.potential;
587 >          i->second.curr.angle = angle;
588 >          i->second.curr.potential = currInversionPot;
589 >          i->second.deltaV =  fabs(i->second.curr.potential -  
590 >                                   i->second.prev.potential);
591 >        }      
592 >      }      
593 >    }
594  
595 <  void ForceManager::calcLongRangeInteraction(bool needPotential, bool needStress) {
596 <    Snapshot* curSnapshot;
597 <    DataStorage* config;
598 <    double* frc;
599 <    double* pos;
600 <    double* trq;
601 <    double* A;
602 <    double* electroFrame;
603 <    double* rc;
595 > #ifdef IS_MPI
596 >    // Collect from all nodes.  This should eventually be moved into a
597 >    // SystemDecomposition, but this is a better place than in
598 >    // Thermo to do the collection.
599 >
600 >    MPI_Allreduce(MPI_IN_PLACE, &bondPotential, 1, MPI_REALTYPE,
601 >                  MPI_SUM, MPI_COMM_WORLD);
602 >    MPI_Allreduce(MPI_IN_PLACE, &bendPotential, 1, MPI_REALTYPE,
603 >                  MPI_SUM, MPI_COMM_WORLD);
604 >    MPI_Allreduce(MPI_IN_PLACE, &torsionPotential, 1,
605 >                  MPI_REALTYPE, MPI_SUM, MPI_COMM_WORLD);
606 >    MPI_Allreduce(MPI_IN_PLACE, &inversionPotential, 1,
607 >                  MPI_REALTYPE, MPI_SUM, MPI_COMM_WORLD);
608 > #endif
609 >
610 >    Snapshot* curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
611 >
612 >    curSnapshot->setBondPotential(bondPotential);
613 >    curSnapshot->setBendPotential(bendPotential);
614 >    curSnapshot->setTorsionPotential(torsionPotential);
615 >    curSnapshot->setInversionPotential(inversionPotential);
616      
617 <    //get current snapshot from SimInfo
618 <    curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
617 >    // RealType shortRangePotential = bondPotential + bendPotential +
618 >    //   torsionPotential +  inversionPotential;    
619  
620 <    //get array pointers
621 <    config = &(curSnapshot->atomData);
622 <    frc = config->getArrayPointer(DataStorage::dslForce);
623 <    pos = config->getArrayPointer(DataStorage::dslPosition);
178 <    trq = config->getArrayPointer(DataStorage::dslTorque);
179 <    A   = config->getArrayPointer(DataStorage::dslAmat);
180 <    electroFrame = config->getArrayPointer(DataStorage::dslElectroFrame);
620 >    // curSnapshot->setShortRangePotential(shortRangePotential);
621 >  }
622 >  
623 >  void ForceManager::longRangeInteractions() {
624  
625 +    Snapshot* curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
626 +    DataStorage* config = &(curSnapshot->atomData);
627 +    DataStorage* cgConfig = &(curSnapshot->cgData);
628 +
629      //calculate the center of mass of cutoff group
630 +
631      SimInfo::MoleculeIterator mi;
632      Molecule* mol;
633      Molecule::CutoffGroupIterator ci;
634      CutoffGroup* cg;
635 <    Vector3d com;
636 <    std::vector<Vector3d> rcGroup;
637 <
638 <    if(info_->getNCutoffGroups() > 0){
639 <
640 <      for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
641 <        for(cg = mol->beginCutoffGroup(ci); cg != NULL; cg = mol->nextCutoffGroup(ci)) {
194 <          cg->getCOM(com);
195 <          rcGroup.push_back(com);
635 >    
636 >    if(info_->getNCutoffGroups() != info_->getNAtoms()){
637 >      for (mol = info_->beginMolecule(mi); mol != NULL;
638 >           mol = info_->nextMolecule(mi)) {
639 >        for(cg = mol->beginCutoffGroup(ci); cg != NULL;
640 >            cg = mol->nextCutoffGroup(ci)) {
641 >          cg->updateCOM();
642          }
643 <      }// end for (mol)
198 <      
199 <      rc = rcGroup[0].getArrayPointer();
643 >      }      
644      } else {
645 <      // center of mass of the group is the same as position of the atom  if cutoff group does not exist
646 <      rc = pos;
645 >      // center of mass of the group is the same as position of the atom  
646 >      // if cutoff group does not exist
647 >      cgConfig->position = config->position;
648 >      cgConfig->velocity = config->velocity;
649      }
650 <  
651 <    //initialize data before passing to fortran
652 <    double longRangePotential[LR_POT_TYPES];
207 <    double lrPot = 0.0;
650 >
651 >    fDecomp_->zeroWorkArrays();
652 >    fDecomp_->distributeData();
653      
654 <    Mat3x3d tau;
655 <    short int passedCalcPot = needPotential;
656 <    short int passedCalcStress = needStress;
657 <    int isError = 0;
654 >    int cg1, cg2, atom1, atom2, topoDist;
655 >    Vector3d d_grp, dag, d, gvel2, vel2;
656 >    RealType rgrpsq, rgrp, r2, r;
657 >    RealType electroMult, vdwMult;
658 >    RealType vij;
659 >    Vector3d fij, fg, f1;
660 >    bool in_switching_region;
661 >    RealType sw, dswdr, swderiv;
662 >    vector<int> atomListColumn, atomListRow;
663 >    InteractionData idat;
664 >    SelfData sdat;
665 >    RealType mf;
666 >    RealType vpair;
667 >    RealType dVdFQ1(0.0);
668 >    RealType dVdFQ2(0.0);
669 >    potVec longRangePotential(0.0);
670 >    RealType reciprocalPotential(0.0);
671 >    potVec workPot(0.0);
672 >    potVec exPot(0.0);
673 >    Vector3d eField1(0.0);
674 >    Vector3d eField2(0.0);
675 >    RealType sPot1(0.0);
676 >    RealType sPot2(0.0);
677 >    bool newAtom1;
678 >                  
679 >    vector<int>::iterator ia, jb;
680  
681 <    for (int i=0; i<LR_POT_TYPES;i++){
682 <      longRangePotential[i]=0.0; //Initialize array
681 >    int loopStart, loopEnd;
682 >    
683 >    idat.rcut = &rCut_;
684 >    idat.vdwMult = &vdwMult;
685 >    idat.electroMult = &electroMult;
686 >    idat.pot = &workPot;
687 >    idat.excludedPot = &exPot;
688 >    sdat.pot = fDecomp_->getEmbeddingPotential();
689 >    sdat.excludedPot = fDecomp_->getExcludedSelfPotential();
690 >    idat.vpair = &vpair;
691 >    idat.dVdFQ1 = &dVdFQ1;
692 >    idat.dVdFQ2 = &dVdFQ2;
693 >    idat.eField1 = &eField1;
694 >    idat.eField2 = &eField2;
695 >    idat.sPot1 = &sPot1;
696 >    idat.sPot2 = &sPot2;
697 >    idat.f1 = &f1;
698 >    idat.sw = &sw;
699 >    idat.shiftedPot = (cutoffMethod_ == SHIFTED_POTENTIAL) ? true : false;
700 >    idat.shiftedForce = (cutoffMethod_ == SHIFTED_FORCE ||
701 >                         cutoffMethod_ == TAYLOR_SHIFTED) ? true : false;
702 >    idat.doParticlePot = doParticlePot_;
703 >    idat.doElectricField = doElectricField_;
704 >    idat.doSitePotential = doSitePotential_;
705 >    sdat.doParticlePot = doParticlePot_;
706 >    
707 >    loopEnd = PAIR_LOOP;
708 >    if (info_->requiresPrepair() ) {
709 >      loopStart = PREPAIR_LOOP;
710 >    } else {
711 >      loopStart = PAIR_LOOP;
712      }
713 +    for (int iLoop = loopStart; iLoop <= loopEnd; iLoop++) {
714 +    
715 +      if (iLoop == loopStart) {
716 +        bool update_nlist = fDecomp_->checkNeighborList();
717 +        if (update_nlist) {
718 +          if (!usePeriodicBoundaryConditions_)
719 +            Mat3x3d bbox = thermo->getBoundingBox();
720 +          fDecomp_->buildNeighborList(neighborList_, point_);
721 +        }
722 +      }
723  
724 +      for (cg1 = 0; cg1 < int(point_.size()) - 1; cg1++) {
725 +        
726 +        atomListRow = fDecomp_->getAtomsInGroupRow(cg1);        
727 +        newAtom1 = true;
728 +        
729 +        for (int m2 = point_[cg1]; m2 < point_[cg1+1]; m2++) {
730  
731 <
732 <    doForceLoop( pos,
733 <                 rc,
734 <                 A,
735 <                 electroFrame,
736 <                 frc,
737 <                 trq,
738 <                 tau.getArrayPointer(),
739 <                 longRangePotential,
740 <                 &passedCalcPot,
741 <                 &passedCalcStress,
742 <                 &isError );
743 <
744 <    if( isError ){
745 <      sprintf( painCave.errMsg,
746 <               "Error returned from the fortran force calculation.\n" );
747 <      painCave.isFatal = 1;
748 <      simError();
749 <    }
750 <    for (int i=0; i<LR_POT_TYPES;i++){
751 <      lrPot += longRangePotential[i]; //Quick hack
731 >          cg2 = neighborList_[m2];
732 >          
733 >          d_grp  = fDecomp_->getIntergroupVector(cg1, cg2);
734 >        
735 >          // already wrapped in the getIntergroupVector call:
736 >          // curSnapshot->wrapVector(d_grp);        
737 >          rgrpsq = d_grp.lengthSquare();
738 >          
739 >          if (rgrpsq < rCutSq_) {
740 >            if (iLoop == PAIR_LOOP) {
741 >              vij = 0.0;
742 >              fij.zero();
743 >              eField1.zero();
744 >              eField2.zero();
745 >              sPot1 = 0.0;
746 >              sPot2 = 0.0;
747 >            }
748 >            
749 >            in_switching_region = switcher_->getSwitch(rgrpsq, sw, dswdr,
750 >                                                       rgrp);
751 >            
752 >            atomListColumn = fDecomp_->getAtomsInGroupColumn(cg2);
753 >            
754 >            if (doHeatFlux_)
755 >              gvel2 = fDecomp_->getGroupVelocityColumn(cg2);
756 >            
757 >            for (ia = atomListRow.begin();
758 >                 ia != atomListRow.end(); ++ia) {            
759 >              atom1 = (*ia);
760 >              
761 >              for (jb = atomListColumn.begin();
762 >                   jb != atomListColumn.end(); ++jb) {              
763 >                atom2 = (*jb);
764 >                
765 >                if (!fDecomp_->skipAtomPair(atom1, atom2, cg1, cg2)) {
766 >                  
767 >                  vpair = 0.0;
768 >                  workPot = 0.0;
769 >                  exPot = 0.0;
770 >                  f1.zero();
771 >                  dVdFQ1 = 0.0;
772 >                  dVdFQ2 = 0.0;
773 >                  
774 >                  fDecomp_->fillInteractionData(idat, atom1, atom2, newAtom1);
775 >                  
776 >                  topoDist = fDecomp_->getTopologicalDistance(atom1, atom2);
777 >                  vdwMult = vdwScale_[topoDist];
778 >                  electroMult = electrostaticScale_[topoDist];
779 >                  
780 >                  if (atomListRow.size() == 1 && atomListColumn.size() == 1) {
781 >                    idat.d = &d_grp;
782 >                    idat.r2 = &rgrpsq;
783 >                    if (doHeatFlux_)
784 >                      vel2 = gvel2;
785 >                  } else {
786 >                    d = fDecomp_->getInteratomicVector(atom1, atom2);
787 >                    curSnapshot->wrapVector( d );
788 >                    r2 = d.lengthSquare();
789 >                    idat.d = &d;
790 >                    idat.r2 = &r2;
791 >                    if (doHeatFlux_)
792 >                      vel2 = fDecomp_->getAtomVelocityColumn(atom2);
793 >                  }
794 >                  
795 >                  r = sqrt( *(idat.r2) );
796 >                  idat.rij = &r;
797 >                  
798 >                  if (iLoop == PREPAIR_LOOP) {
799 >                    interactionMan_->doPrePair(idat);
800 >                  } else {
801 >                    interactionMan_->doPair(idat);
802 >                    fDecomp_->unpackInteractionData(idat, atom1, atom2);
803 >                    vij += vpair;
804 >                    fij += f1;
805 >                    stressTensor -= outProduct( *(idat.d), f1);
806 >                    if (doHeatFlux_)
807 >                      fDecomp_->addToHeatFlux(*(idat.d) * dot(f1, vel2));
808 >                  }
809 >                }
810 >              }
811 >            }
812 >            
813 >            if (iLoop == PAIR_LOOP) {
814 >              if (in_switching_region) {
815 >                swderiv = vij * dswdr / rgrp;
816 >                fg = swderiv * d_grp;
817 >                fij += fg;
818 >                
819 >                if (atomListRow.size() == 1 && atomListColumn.size() == 1) {
820 >                  if (!fDecomp_->skipAtomPair(atomListRow[0],
821 >                                              atomListColumn[0],
822 >                                              cg1, cg2)) {
823 >                  stressTensor -= outProduct( *(idat.d), fg);
824 >                  if (doHeatFlux_)
825 >                    fDecomp_->addToHeatFlux(*(idat.d) * dot(fg, vel2));
826 >                  }                
827 >                }
828 >                
829 >                for (ia = atomListRow.begin();
830 >                     ia != atomListRow.end(); ++ia) {            
831 >                  atom1 = (*ia);                
832 >                  mf = fDecomp_->getMassFactorRow(atom1);
833 >                  // fg is the force on atom ia due to cutoff group's
834 >                  // presence in switching region
835 >                  fg = swderiv * d_grp * mf;
836 >                  fDecomp_->addForceToAtomRow(atom1, fg);
837 >                  if (atomListRow.size() > 1) {
838 >                    if (info_->usesAtomicVirial()) {
839 >                      // find the distance between the atom
840 >                      // and the center of the cutoff group:
841 >                      dag = fDecomp_->getAtomToGroupVectorRow(atom1, cg1);
842 >                      stressTensor -= outProduct(dag, fg);
843 >                      if (doHeatFlux_)
844 >                        fDecomp_->addToHeatFlux( dag * dot(fg, vel2));
845 >                    }
846 >                  }
847 >                }
848 >                for (jb = atomListColumn.begin();
849 >                     jb != atomListColumn.end(); ++jb) {              
850 >                  atom2 = (*jb);
851 >                  mf = fDecomp_->getMassFactorColumn(atom2);
852 >                  // fg is the force on atom jb due to cutoff group's
853 >                  // presence in switching region
854 >                  fg = -swderiv * d_grp * mf;
855 >                  fDecomp_->addForceToAtomColumn(atom2, fg);
856 >                  
857 >                  if (atomListColumn.size() > 1) {
858 >                    if (info_->usesAtomicVirial()) {
859 >                      // find the distance between the atom
860 >                      // and the center of the cutoff group:
861 >                      dag = fDecomp_->getAtomToGroupVectorColumn(atom2, cg2);
862 >                      stressTensor -= outProduct(dag, fg);
863 >                      if (doHeatFlux_)
864 >                        fDecomp_->addToHeatFlux( dag * dot(fg, vel2));
865 >                    }
866 >                  }
867 >                }
868 >              }
869 >              //if (!info_->usesAtomicVirial()) {
870 >              //  stressTensor -= outProduct(d_grp, fij);
871 >              //  if (doHeatFlux_)
872 >              //     fDecomp_->addToHeatFlux( d_grp * dot(fij, vel2));
873 >              //}
874 >            }
875 >          }
876 >        }
877 >        newAtom1 = false;
878 >      }
879 >        
880 >      if (iLoop == PREPAIR_LOOP) {
881 >        if (info_->requiresPrepair()) {
882 >          
883 >          fDecomp_->collectIntermediateData();
884 >          
885 >          for (unsigned int atom1 = 0; atom1 < info_->getNAtoms(); atom1++) {
886 >            fDecomp_->fillSelfData(sdat, atom1);
887 >            interactionMan_->doPreForce(sdat);
888 >          }
889 >          
890 >          fDecomp_->distributeIntermediateData();
891 >          
892 >        }
893 >      }
894      }
895 +    
896 +    // collects pairwise information
897 +    fDecomp_->collectData();
898 +    if (cutoffMethod_ == EWALD_FULL) {
899 +      interactionMan_->doReciprocalSpaceSum(reciprocalPotential);
900  
901 <    //store the tau and long range potential    
902 <    curSnapshot->statData[Stats::LONG_RANGE_POTENTIAL] = lrPot;
903 <    //  curSnapshot->statData[Stats::LONG_RANGE_POTENTIAL] = longRangePotential;
904 <    curSnapshot->statData.setTau(tau);
905 <  }
901 >      curSnapshot->setReciprocalPotential(reciprocalPotential);
902 >    }
903 >        
904 >    if (info_->requiresSelfCorrection()) {
905 >      for (unsigned int atom1 = 0; atom1 < info_->getNAtoms(); atom1++) {
906 >        fDecomp_->fillSelfData(sdat, atom1);
907 >        interactionMan_->doSelfCorrection(sdat);
908 >      }
909 >    }
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    void ForceManager::postCalculation() {
925 +
926 +    vector<Perturbation*>::iterator pi;
927 +    for (pi = perturbations_.begin(); pi != perturbations_.end(); ++pi) {
928 +      (*pi)->applyPerturbation();
929 +    }
930 +
931      SimInfo::MoleculeIterator mi;
932      Molecule* mol;
933      Molecule::RigidBodyIterator rbIter;
934      RigidBody* rb;
935 <    
935 >    Snapshot* curSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
936 >  
937      // collect the atomic forces onto rigid bodies
938 <    for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) {
939 <      for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
940 <        rb->calcForcesAndTorques();
938 >    
939 >    for (mol = info_->beginMolecule(mi); mol != NULL;
940 >         mol = info_->nextMolecule(mi)) {
941 >      for (rb = mol->beginRigidBody(rbIter); rb != NULL;
942 >           rb = mol->nextRigidBody(rbIter)) {
943 >        Mat3x3d rbTau = rb->calcForcesAndTorquesAndVirial();
944 >        stressTensor += rbTau;
945        }
946      }
947 +    
948 + #ifdef IS_MPI
949 +    MPI_Allreduce(MPI_IN_PLACE, stressTensor.getArrayPointer(), 9,
950 +                  MPI_REALTYPE, MPI_SUM, MPI_COMM_WORLD);
951 + #endif
952 +    curSnapshot->setStressTensor(stressTensor);
953 +    
954 +    if (info_->getSimParams()->getUseLongRangeCorrections()) {
955 +      /*
956 +        RealType vol = curSnapshot->getVolume();
957 +        RealType Elrc(0.0);
958 +        RealType Wlrc(0.0);
959  
960 <  }
960 >        set<AtomType*>::iterator i;
961 >        set<AtomType*>::iterator j;
962 >    
963 >        RealType n_i, n_j;
964 >        RealType rho_i, rho_j;
965 >        pair<RealType, RealType> LRI;
966 >      
967 >        for (i = atomTypes_.begin(); i != atomTypes_.end(); ++i) {
968 >        n_i = RealType(info_->getGlobalCountOfType(*i));
969 >        rho_i = n_i /  vol;
970 >        for (j = atomTypes_.begin(); j != atomTypes_.end(); ++j) {
971 >        n_j = RealType(info_->getGlobalCountOfType(*j));
972 >        rho_j = n_j / vol;
973 >          
974 >        LRI = interactionMan_->getLongRangeIntegrals( (*i), (*j) );
975  
976 < } //end namespace oopse
976 >        Elrc += n_i   * rho_j * LRI.first;
977 >        Wlrc -= rho_i * rho_j * LRI.second;
978 >        }
979 >        }
980 >        Elrc *= 2.0 * NumericConstant::PI;
981 >        Wlrc *= 2.0 * NumericConstant::PI;
982 >
983 >        RealType lrp = curSnapshot->getLongRangePotential();
984 >        curSnapshot->setLongRangePotential(lrp + Elrc);
985 >        stressTensor += Wlrc * SquareMatrix3<RealType>::identity();
986 >        curSnapshot->setStressTensor(stressTensor);
987 >      */
988 >    
989 >    }
990 >  }
991 > }

Comparing trunk/src/brains/ForceManager.cpp (property svn:keywords):
Revision 665 by tim, Thu Oct 13 22:26:47 2005 UTC vs.
Revision 2067 by gezelter, Thu Mar 5 15:35:37 2015 UTC

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