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root/OpenMD/branches/development/src/brains/ForceManager.cpp
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Comparing branches/development/src/brains/ForceManager.cpp (file contents):
Revision 1584 by gezelter, Fri Jun 17 20:16:35 2011 UTC vs.
Revision 1587 by gezelter, Fri Jul 8 20:25:32 2011 UTC

# Line 75 | Line 75 | namespace OpenMD {
75    /**
76     * setupCutoffs
77     *
78 <   * Sets the values of cutoffRadius, cutoffMethod, and cutoffPolicy
78 >   * Sets the values of cutoffRadius, switchingRadius, cutoffMethod,
79 >   * and cutoffPolicy
80     *
81     * cutoffRadius : realType
82     *  If the cutoffRadius was explicitly set, use that value.
# Line 92 | Line 93 | namespace OpenMD {
93     * cutoffPolicy : (one of MIX, MAX, TRADITIONAL)
94     *      If cutoffPolicy was explicitly set, use that choice.
95     *      If cutoffPolicy was not explicitly set, use TRADITIONAL
96 +   *
97 +   * switchingRadius : realType
98 +   *  If the cutoffMethod was set to SWITCHED:
99 +   *      If the switchingRadius was explicitly set, use that value
100 +   *          (but do a sanity check first).
101 +   *      If the switchingRadius was not explicitly set: use 0.85 *
102 +   *      cutoffRadius_
103 +   *  If the cutoffMethod was not set to SWITCHED:
104 +   *      Set switchingRadius equal to cutoffRadius for safety.
105     */
106    void ForceManager::setupCutoffs() {
107      
# Line 202 | Line 212 | namespace OpenMD {
212        simError();
213        cutoffPolicy_ = TRADITIONAL;        
214      }
205    fDecomp_->setCutoffPolicy(cutoffPolicy_);
206  }
215  
216 <  /**
217 <   * setupSwitching
210 <   *
211 <   * Sets the values of switchingRadius and
212 <   *  If the switchingRadius was explicitly set, use that value (but check it)
213 <   *  If the switchingRadius was not explicitly set: use 0.85 * cutoffRadius_
214 <   */
215 <  void ForceManager::setupSwitching() {
216 <    Globals* simParams_ = info_->getSimParams();
217 <
216 >    fDecomp_->setCutoffPolicy(cutoffPolicy_);
217 >        
218      // create the switching function object:
219 +
220      switcher_ = new SwitchingFunction();
221 <    
222 <    if (simParams_->haveSwitchingRadius()) {
223 <      rSwitch_ = simParams_->getSwitchingRadius();
224 <      if (rSwitch_ > rCut_) {        
221 >  
222 >    if (cutoffMethod_ == SWITCHED) {
223 >      if (simParams_->haveSwitchingRadius()) {
224 >        rSwitch_ = simParams_->getSwitchingRadius();
225 >        if (rSwitch_ > rCut_) {        
226 >          sprintf(painCave.errMsg,
227 >                  "ForceManager::setupCutoffs: switchingRadius (%f) is larger "
228 >                  "than the cutoffRadius(%f)\n", rSwitch_, rCut_);
229 >          painCave.isFatal = 1;
230 >          painCave.severity = OPENMD_ERROR;
231 >          simError();
232 >        }
233 >      } else {      
234 >        rSwitch_ = 0.85 * rCut_;
235          sprintf(painCave.errMsg,
236 <                "ForceManager::setupSwitching: switchingRadius (%f) is larger "
237 <                "than the cutoffRadius(%f)\n", rSwitch_, rCut_);
238 <        painCave.isFatal = 1;
239 <        painCave.severity = OPENMD_ERROR;
236 >                "ForceManager::setupCutoffs: No value was set for the switchingRadius.\n"
237 >                "\tOpenMD will use a default value of 85 percent of the cutoffRadius.\n"
238 >                "\tswitchingRadius = %f. for this simulation\n", rSwitch_);
239 >        painCave.isFatal = 0;
240 >        painCave.severity = OPENMD_WARNING;
241 >        simError();
242 >      }
243 >    } else {
244 >      if (simParams_->haveSwitchingRadius()) {
245 >        map<string, CutoffMethod>::const_iterator it;
246 >        string theMeth;
247 >        for (it = stringToCutoffMethod.begin();
248 >             it != stringToCutoffMethod.end(); ++it) {
249 >          if (it->second == cutoffMethod_) {
250 >            theMeth = it->first;
251 >            break;
252 >          }
253 >        }
254 >        sprintf(painCave.errMsg,
255 >                "ForceManager::setupCutoffs: the cutoffMethod (%s)\n"
256 >                "\tis not set to SWITCHED, so switchingRadius value\n"
257 >                "\twill be ignored for this simulation\n", theMeth.c_str());
258 >        painCave.isFatal = 0;
259 >        painCave.severity = OPENMD_WARNING;
260          simError();
261        }
262 <    } else {      
263 <      rSwitch_ = 0.85 * rCut_;
264 <      sprintf(painCave.errMsg,
234 <              "ForceManager::setupSwitching: No value was set for the switchingRadius.\n"
235 <              "\tOpenMD will use a default value of 85 percent of the cutoffRadius.\n"
236 <              "\tswitchingRadius = %f. for this simulation\n", rSwitch_);
237 <      painCave.isFatal = 0;
238 <      painCave.severity = OPENMD_WARNING;
239 <      simError();
240 <    }          
262 >
263 >      rSwitch_ = rCut_;
264 >    }
265      
266      // Default to cubic switching function.
267      sft_ = cubic;
# Line 279 | Line 303 | namespace OpenMD {
303        // query them for suggested cutoff values
304  
305        setupCutoffs();
282      setupSwitching();
306  
307        info_->prepareTopology();      
308      }
# Line 574 | Line 597 | namespace OpenMD {
597          if (rgrpsq < rCutSq) {
598            idat.rcut = &cuts.first;
599            if (iLoop == PAIR_LOOP) {
600 <            vij *= 0.0;
600 >            vij = 0.0;
601              fij = V3Zero;
602            }
603            
# Line 634 | Line 657 | namespace OpenMD {
657              if (in_switching_region) {
658                swderiv = vij * dswdr / rgrp;
659                fg = swderiv * d_grp;
637
660                fij += fg;
661  
662                if (atomListRow.size() == 1 && atomListColumn.size() == 1) {
# Line 702 | Line 724 | namespace OpenMD {
724      }
725      
726      fDecomp_->collectData();
705    
706    if ( info_->requiresSkipCorrection() ) {
707      
708      for (int atom1 = 0; atom1 < fDecomp_->getNAtomsInRow(); atom1++) {
709
710        vector<int> skipList = fDecomp_->getSkipsForAtom( atom1 );
727          
712        for (vector<int>::iterator jb = skipList.begin();
713             jb != skipList.end(); ++jb) {        
714    
715          atom2 = (*jb);
716          fDecomp_->fillSkipData(idat, atom1, atom2);
717          interactionMan_->doSkipCorrection(idat);
718          fDecomp_->unpackSkipData(idat, atom1, atom2);
719
720        }
721      }
722    }
723    
728      if (info_->requiresSelfCorrection()) {
729  
730        for (int atom1 = 0; atom1 < info_->getNAtoms(); atom1++) {          

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