ViewVC Help
View File | Revision Log | Show Annotations | View Changeset | Root Listing
root/OpenMD/trunk/src/applications/staticProps/BondOrderParameter.cpp
(Generate patch)

Comparing trunk/src/applications/staticProps/BondOrderParameter.cpp (file contents):
Revision 1052 by gezelter, Tue Sep 26 01:30:32 2006 UTC vs.
Revision 1785 by jmichalk, Wed Aug 22 18:43:27 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 + * [4] , Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011). *
41 + *  Created by J. Daniel Gezelter on 09/26/06.
42 + *  @author  J. Daniel Gezelter
43 + *  @version $Id$
44 + *
45   */
41
42
43 /* Creates orientational bond order parameters as outlined by
44 *     Bond-orientaional order in liquids and glasses, Steinhart,Nelson,Ronchetti
45 *     Phys Rev B, 28,784,1983
46 *
47 */
46  
47   #include "applications/staticProps/BondOrderParameter.hpp"
48   #include "utils/simError.h"
49   #include "io/DumpReader.hpp"
50   #include "primitives/Molecule.hpp"
51   #include "utils/NumericConstant.hpp"
52 + #include "math/Wigner3jm.hpp"
53  
54 < namespace oopse {
54 > using namespace MATPACK;
55 > namespace OpenMD {
56  
57    BondOrderParameter::BondOrderParameter(SimInfo* info,
58                                           const std::string& filename,
# Line 82 | Line 82 | namespace oopse {
82      // W_6 for icosahedral clusters is 11 / sqrt(4199) = 0.169754, so we'll
83      // use values for MinW_ and MaxW_ that are slightly larger than this:
84  
85 <    MinW_ = -0.25;
86 <    MaxW_ = 0.25;
85 >    MinW_ = -1.1;
86 >    MaxW_ = 1.1;
87      deltaW_ = (MaxW_ - MinW_) / nbins;
88  }
88  
89 +    // Make arrays for Wigner3jm
90 +    RealType* THRCOF = new RealType[2*lMax_+1];
91 +    // Variables for Wigner routine
92 +    RealType lPass, m1Pass, m2m, m2M;
93 +    int error, mSize;
94 +    mSize = 2*lMax_+1;
95 +
96 +    for (int l = 0; l <= lMax_; l++) {
97 +      lPass = (RealType)l;
98 +      for (int m1 = -l; m1 <= l; m1++) {
99 +        m1Pass = (RealType)m1;
100 +
101 +        std::pair<int,int> lm = std::make_pair(l, m1);
102 +        
103 +        // Zero work array
104 +        for (int ii = 0; ii < 2*l + 1; ii++){
105 +          THRCOF[ii] = 0.0;
106 +        }
107 +
108 +        // Get Wigner coefficients
109 +        Wigner3jm(lPass, lPass, lPass,
110 +                  m1Pass, m2m, m2M,
111 +                  THRCOF, mSize, error);
112 +      
113 +        m2Min[lm] = (int)floor(m2m);
114 +        m2Max[lm] = (int)floor(m2M);
115 +        
116 +        for (int mmm = 0; mmm <= (int)(m2M - m2m); mmm++) {
117 +          w3j[lm].push_back(THRCOF[mmm]);
118 +        }
119 +      }
120 +    }
121 +    delete [] THRCOF;
122 +    THRCOF = NULL;
123 +  }
124 +  
125    BondOrderParameter::~BondOrderParameter() {
126      Q_histogram_.clear();
127      W_histogram_.clear();
128 +    for (int l = 0; l <= lMax_; l++) {
129 +      for (int m = -l; m <= l; m++) {
130 +        w3j[std::make_pair(l,m)].clear();
131 +      }
132 +    }
133 +    w3j.clear();
134 +    m2Min.clear();
135 +    m2Max.clear();
136    }
137 <
138 <  void BondOrderParameter::initalizeHistogram() {
137 >  
138 >  void BondOrderParameter::initializeHistogram() {
139      for (int bin = 0; bin < nBins_; bin++) {
140        for (int l = 0; l <= lMax_; l++) {
141          Q_histogram_[std::make_pair(bin,l)] = 0;
# Line 114 | Line 157 | namespace oopse {
157      RealType costheta;
158      RealType phi;
159      RealType r;
117    RealType dist;
160      std::map<std::pair<int,int>,ComplexType> q;
161      std::vector<RealType> q_l;
162      std::vector<RealType> q2;
# Line 127 | Line 169 | namespace oopse {
169      std::vector<ComplexType> W_hat;
170      int nBonds, Nbonds;
171      SphericalHarmonic sphericalHarmonic;
172 <    int i, j;
131 <    // Make arrays for Wigner3jm
132 <    double* THRCOF = new double[2*lMax_+1];
133 <    // Variables for Wigner routine
134 <    double lPass, m1Pass, m2Min, m2Max;
135 <    int error, m1, m2, m3, mSize;
136 <    mSize = 2*lMax_+1;
172 >    int i;
173  
174      DumpReader reader(info_, dumpFilename_);    
175      int nFrames = reader.getNFrames();
# Line 148 | Line 184 | namespace oopse {
184      Q.resize(lMax_+1);
185      W.resize(lMax_+1);
186      W_hat.resize(lMax_+1);
187 +    Nbonds = 0;
188  
189      for (int istep = 0; istep < nFrames; istep += step_) {
190        reader.readFrame(istep);
# Line 192 | Line 229 | namespace oopse {
229              if (atom->getGlobalIndex() != myIndex) {
230  
231                vec = sd->getPos() - atom->getPos();      
232 <              currentSnapshot_->wrapVector(vec);
232 >
233 >              if (usePeriodicBoundaryConditions_)
234 >                currentSnapshot_->wrapVector(vec);
235                
236                // Calculate "bonds" and build Q_lm(r) where
237                //      Q_lm = Y_lm(theta(r),phi(r))                
# Line 212 | Line 251 | namespace oopse {
251                    for(int m = -l; m <= l; m++){
252                      sphericalHarmonic.setM(m);
253                      q[std::make_pair(l,m)] += sphericalHarmonic.getValueAt(costheta, phi);
254 +
255                    }
256                  }
257                  nBonds++;
# Line 221 | Line 261 | namespace oopse {
261          }
262          
263          
224        for (int l = 0; l <= lMax_; l++) {        
225          q_l[l] = 0.0;
226          for(int m = -l; m <= l; m++) {
227            q_l[l] += norm(q[std::make_pair(l,m)]);
228          }    
229          q_l[l] *= 4.0*NumericConstant::PI/(RealType)(2*l + 1);
230          q_l[l] = sqrt(q_l[l])/(RealType)nBonds;
231        }
232
233        // Find second order invariant Q_l
234        
264          for (int l = 0; l <= lMax_; l++) {
265            q2[l] = 0.0;
266            for (int m = -l; m <= l; m++){
267 +            q[std::make_pair(l,m)] /= (RealType)nBonds;
268 +
269              q2[l] += norm(q[std::make_pair(l,m)]);
270            }
271 <          q_l[l] = sqrt(q2[l] * 4.0 * NumericConstant::PI /
241 <                        (RealType)(2*l + 1))/(RealType)nBonds;
271 >          q_l[l] = sqrt(q2[l] * 4.0 * NumericConstant::PI / (RealType)(2*l + 1));
272          }
273 <
273 >        
274          // Find Third Order Invariant W_l
275      
276          for (int l = 0; l <= lMax_; l++) {
277            w[l] = 0.0;
248          lPass = (double)l;
278            for (int m1 = -l; m1 <= l; m1++) {
279 <            // Zero work array
280 <            for (int ii = 0; ii < 2*l + 1; ii++){
281 <              THRCOF[ii] = 0.0;
282 <            }
283 <            // Get Wigner coefficients
284 <            m1Pass = (double)m1;
256 <            
257 <            Wigner3jm(&lPass, &lPass, &lPass,
258 <                      &m1Pass, &m2Min, &m2Max,
259 <                      THRCOF, &mSize, &error);
260 <            
261 <            for (int mmm = 0; mmm < (int)(m2Max - m2Min); mmm++) {
262 <              m2 = (int)floor(m2Min) + mmm;
263 <              m3 = -m1-m2;
264 <              w[l] += THRCOF[mmm] *
265 <                q[std::make_pair(l,m1)] *
266 <                q[std::make_pair(l,m2)] *
267 <                q[std::make_pair(l,m3)];
279 >            std::pair<int,int> lm = std::make_pair(l, m1);
280 >            for (int mmm = 0; mmm <= (m2Max[lm] - m2Min[lm]); mmm++) {
281 >              int m2 = m2Min[lm] + mmm;
282 >              int m3 = -m1-m2;
283 >              w[l] += w3j[lm][mmm] * q[lm] *
284 >                q[std::make_pair(l,m2)] *  q[std::make_pair(l,m3)];
285              }
286            }
287            
288 <          w_hat[l] = w[l] / pow(q2[l], 1.5);
288 >          w_hat[l] = w[l] / pow(q2[l], RealType(1.5));
289          }
290  
291          collectHistogram(q_l, w_hat);
# Line 276 | Line 293 | namespace oopse {
293          Nbonds += nBonds;
294          for (int l = 0; l <= lMax_;  l++) {
295            for (int m = -l; m <= l; m++) {
296 <            QBar[std::make_pair(l,m)] += q[std::make_pair(l,m)];
296 >            QBar[std::make_pair(l,m)] += (RealType)nBonds*q[std::make_pair(l,m)];
297            }
298          }
299        }
# Line 303 | Line 320 | namespace oopse {
320      
321      for (int l = 0; l <= lMax_; l++) {
322        W[l] = 0.0;
306      lPass = (double)l;
323        for (int m1 = -l; m1 <= l; m1++) {
324 <        // Zero work array
325 <        for (int ii = 0; ii < 2*l + 1; ii++){
326 <          THRCOF[ii] = 0.0;
324 >        std::pair<int,int> lm = std::make_pair(l, m1);
325 >        for (int mmm = 0; mmm <= (m2Max[lm] - m2Min[lm]); mmm++) {
326 >          int m2 = m2Min[lm] + mmm;
327 >          int m3 = -m1-m2;
328 >          W[l] += w3j[lm][mmm] * QBar[lm] *
329 >            QBar[std::make_pair(l,m2)] * QBar[std::make_pair(l,m3)];
330          }
312        // Get Wigner coefficients
313        m1Pass = (double)m1;
314        
315        Wigner3jm(&lPass, &lPass, &lPass,
316                  &m1Pass, &m2Min, &m2Max,
317                  THRCOF, &mSize, &error);
318        
319        for (int mmm = 0; mmm < (int)(m2Max - m2Min); mmm++) {
320          m2 = (int)floor(m2Min) + mmm;
321          m3 = -m1-m2;
322          W[l] += THRCOF[mmm] *
323            QBar[std::make_pair(l,m1)] *
324            QBar[std::make_pair(l,m2)] *
325            QBar[std::make_pair(l,m3)];
326        }
331        }
332        
333 <      W_hat[l] = W[l] / pow(Q2[l], 1.5);
333 >      W_hat[l] = W[l] / pow(Q2[l], RealType(1.5));
334      }
335      
336      writeOrderParameter(Q, W_hat);    
# Line 343 | Line 347 | namespace oopse {
347        } else {
348          sprintf( painCave.errMsg,
349                   "q_l value outside reasonable range\n");
350 <        painCave.severity = OOPSE_ERROR;
350 >        painCave.severity = OPENMD_ERROR;
351          painCave.isFatal = 1;
352          simError();  
353        }
# Line 356 | Line 360 | namespace oopse {
360          Wcount_[l]++;      
361        } else {
362          sprintf( painCave.errMsg,
363 <                 "Re[w_hat] value outside reasonable range\n");
364 <        painCave.severity = OOPSE_ERROR;
363 >                 "Re[w_hat] value (%lf) outside reasonable range\n", real(what[l]));
364 >        painCave.severity = OPENMD_ERROR;
365          painCave.isFatal = 1;
366          simError();  
367        }
# Line 384 | Line 388 | namespace oopse {
388          RealType Qval = MinQ_ + (i + 0.5) * deltaQ_;              
389          osq << Qval;
390          for (int l = 0; l <= lMax_; l++) {
391 <          osq << "\t" << (RealType)Q_histogram_[std::make_pair(i,l)] / (RealType)Qcount_[l];
391 >
392 >          osq << "\t" << (RealType)Q_histogram_[std::make_pair(i,l)]/(RealType)Qcount_[l]/deltaQ_;
393          }
394          osq << "\n";
395        }
# Line 405 | Line 410 | namespace oopse {
410        osw << "# selection: (" << selectionScript_ << ")\n";
411        osw << "# \n";
412        for (int l = 0; l <= lMax_; l++) {
413 <        osw << "# <W_" << l << ">: " << real(What[l]) << "\n";
413 >        osw << "# <W_" << l << ">: " << real(What[l]) << "\t" << imag(What[l]) << "\n";
414        }
415        // Normalize by number of frames and write it out:
416        for (int i = 0; i < nBins_; ++i) {
417          RealType Wval = MinW_ + (i + 0.5) * deltaW_;              
418          osw << Wval;
419          for (int l = 0; l <= lMax_; l++) {
420 <          osw << "\t" << (RealType)W_histogram_[std::make_pair(i,l)] / (RealType)Wcount_[l];
420 >
421 >          osw << "\t" << (RealType)W_histogram_[std::make_pair(i,l)]/(RealType)Wcount_[l]/deltaW_;
422          }
423          osw << "\n";
424        }

Comparing trunk/src/applications/staticProps/BondOrderParameter.cpp (property svn:keywords):
Revision 1052 by gezelter, Tue Sep 26 01:30:32 2006 UTC vs.
Revision 1785 by jmichalk, Wed Aug 22 18:43:27 2012 UTC

# Line 0 | Line 1
1 + Author Id Revision Date

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines