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Comparing trunk/src/applications/staticProps/RadialDistrFunc.cpp (file contents):
Revision 310 by tim, Thu Feb 10 18:14:03 2005 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 + * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
41   */
42  
43   #include <algorithm>
44  
45   #include "RadialDistrFunc.hpp"
46 + #include "io/DumpReader.hpp"
47 + #include "primitives/Molecule.hpp"
48  
49 < namespace oopse {
49 > namespace OpenMD {
50  
51 < RadialDistrFunc::        RadialDistrFunc(SimInfo* info, const std::string& filename, const std::string& sele1, const std::string& sele2)
52 <        : info_(info), currentSnapshot_(NULL), dumpFilename_(filename), step_(1),
53 <          selectionScript1_(sele1), selectionScript2_(sele2), evaluator1_(info), evaluator2_(info){
51 >  RadialDistrFunc::RadialDistrFunc(SimInfo* info,
52 >                                   const std::string& filename,
53 >                                   const std::string& sele1,
54 >                                   const std::string& sele2)
55 >    : StaticAnalyser(info, filename), selectionScript1_(sele1),
56 >      selectionScript2_(sele2), evaluator1_(info), evaluator2_(info),
57 >      seleMan1_(info), seleMan2_(info), common_(info),
58 >      sele1_minus_common_(info), sele2_minus_common_(info) {
59            
60 <    evaluator1_.loadScriptString(sele1);
61 <    evaluator2_.loadScriptString(sele2);
60 >      evaluator1_.loadScriptString(sele1);
61 >      evaluator2_.loadScriptString(sele2);
62  
63 <    if (!evaluator1_->isDynamic()) {
64 <            seleMan1_.setSelectionSet(evaluator1_->evaluate());
65 <    }
66 <    if (!evaluator2_->isDynamic()) {
67 <            seleMan2_.setSelectionSet(evaluator2_->evaluate());
68 <    }
63 >      if (!evaluator1_.isDynamic()) {
64 >        seleMan1_.setSelectionSet(evaluator1_.evaluate());
65 >        validateSelection1(seleMan1_);
66 >      }
67 >      if (!evaluator2_.isDynamic()) {
68 >        seleMan2_.setSelectionSet(evaluator2_.evaluate());
69 >        validateSelection2(seleMan2_);
70 >      }
71  
72 < }
72 >      if (!evaluator1_.isDynamic() && !evaluator2_.isDynamic()) {
73 >        // If all selections are static, we can precompute the number
74 >        // of real pairs.
75 >        common_ = seleMan1_ & seleMan2_;
76 >        sele1_minus_common_ = seleMan1_ - common_;
77 >        sele2_minus_common_ = seleMan2_ - common_;      
78  
79 < void RadialDistrFunc::process() {
79 >        int nSelected1 = seleMan1_.getSelectionCount();
80 >        int nSelected2 = seleMan2_.getSelectionCount();
81 >        int nIntersect = common_.getSelectionCount();
82 >        
83 >        nPairs_ = nSelected1 * nSelected2 - (nIntersect +1) * nIntersect/2;  
84 >      }
85 >    
86 >    }
87  
88 +  void RadialDistrFunc::process() {
89 +    Molecule* mol;
90 +    RigidBody* rb;
91 +    SimInfo::MoleculeIterator mi;
92 +    Molecule::RigidBodyIterator rbIter;
93 +    
94      preProcess();
95      
96      DumpReader reader(info_, dumpFilename_);    
97 <    int nFrames = reader->getNFrames();
98 <    nProcessed_ = nFrames / step_ + 1;
97 >    int nFrames = reader.getNFrames();
98 >    nProcessed_ = nFrames / step_;
99 >
100      for (int i = 0; i < nFrames; i += step_) {
101 <        reader->readFrame(i);
102 <        currentSnapshot_ = info_->getSnapshotManager()->getCurrentSnapshot();
101 >      reader.readFrame(i);
102 >      currentSnapshot_ = info_->getSnapshotManager()->getCurrentSnapshot();
103  
104 <        if (evaluator1_->isDynamic()) {
105 <            seleMan1_.setSelectionSet(evaluator1_->evaluate());
106 <        }
107 <        if (evaluator2_->isDynamic()) {
108 <            seleMan2_.setSelectionSet(evaluator2_->evaluate());
109 <        }
104 >      if (evaluator1_.isDynamic()) {
105 >        seleMan1_.setSelectionSet(evaluator1_.evaluate());
106 >        validateSelection1(seleMan1_);
107 >      }
108 >      if (evaluator2_.isDynamic()) {
109 >        seleMan2_.setSelectionSet(evaluator2_.evaluate());
110 >        validateSelection2(seleMan2_);
111 >      }
112  
113 <        initalizeHistogram();
113 >      for (mol = info_->beginMolecule(mi); mol != NULL;
114 >           mol = info_->nextMolecule(mi)) {
115  
116 <        StuntDouble* sd1;
117 <        int j;
118 <        for (sd1 = seleMan1_->beginSelected(j); sd1 != NULL; sd1 = seleMan1_->nextSelected(j)) {
116 >        // Change the positions of atoms which belong to the RigidBodies
117 >        for (rb = mol->beginRigidBody(rbIter); rb != NULL;
118 >             rb = mol->nextRigidBody(rbIter)) {
119 >          rb->updateAtoms();
120 >        }
121 >      }
122 >        
123 >      initializeHistogram();
124 >        
125 >      // Selections may overlap, and we need a bit of logic to deal
126 >      // with this.
127 >      //
128 >      // |     s1    |
129 >      // | s1 -c | c |
130 >      //         | c | s2 - c |
131 >      //         |    s2      |
132 >      //
133 >      // s1 : Set of StuntDoubles in selection1
134 >      // s2 : Set of StuntDoubles in selection2
135 >      // c  : Intersection of selection1 and selection2
136 >      //
137 >      // When we loop over the pairs, we can divide the looping into 3
138 >      // stages:
139 >      //
140 >      // Stage 1 :     [s1-c]      [s2]
141 >      // Stage 2 :     [c]         [s2 - c]
142 >      // Stage 3 :     [c]         [c]
143 >      // Stages 1 and 2 are completely non-overlapping.
144 >      // Stage 3 is completely overlapping.
145  
146 <            StuntDouble* sd2;
147 <            int k;
148 <            for (sd2 = seleMan2_->beginSelected(k); sd2 != NULL; sd2 = seleMan2_->nextSelected(k)) {
149 <                collectHistogram(sd1, sd2);
150 <            }            
151 <        }
152 <
153 <        processHistogram();
146 >      if (evaluator1_.isDynamic() || evaluator2_.isDynamic()) {
147 >        common_ = seleMan1_ & seleMan2_;
148 >        sele1_minus_common_ = seleMan1_ - common_;
149 >        sele2_minus_common_ = seleMan2_ - common_;            
150 >        int nSelected1 = seleMan1_.getSelectionCount();
151 >        int nSelected2 = seleMan2_.getSelectionCount();
152 >        int nIntersect = common_.getSelectionCount();
153 >            
154 >        nPairs_ = nSelected1 * nSelected2 - (nIntersect +1) * nIntersect/2;
155 >      }
156 >      
157 >      processNonOverlapping(sele1_minus_common_, seleMan2_);
158 >      processNonOverlapping(common_,             sele2_minus_common_);
159 >      processOverlapping(common_);
160 >      
161 >      processHistogram();
162          
163      }
164  
165      postProcess();
166  
167      writeRdf();
168 < }
168 >  }
169  
170 +  void RadialDistrFunc::processNonOverlapping( SelectionManager& sman1,
171 +                                               SelectionManager& sman2) {
172 +    StuntDouble* sd1;
173 +    StuntDouble* sd2;
174 +    int i;    
175 +    int j;
176 +    
177 +    // This is the same as a non-overlapping pairwise loop structure:
178 +    // for (int i = 0;  i < ni ; ++i ) {
179 +    //   for (int j = 0; j < nj; ++j) {}
180 +    // }
181 +
182 +    for (sd1 = sman1.beginSelected(i); sd1 != NULL;
183 +         sd1 = sman1.nextSelected(i)) {
184 +      for (sd2 = sman2.beginSelected(j); sd2 != NULL;
185 +           sd2 = sman2.nextSelected(j)) {
186 +        collectHistogram(sd1, sd2);
187 +      }
188 +    }
189 +  }
190 +
191 +  void RadialDistrFunc::processOverlapping( SelectionManager& sman) {
192 +    StuntDouble* sd1;
193 +    StuntDouble* sd2;
194 +    int i;    
195 +    int j;
196 +
197 +    // This is the same as a pairwise loop structure:
198 +    // for (int i = 0;  i < n-1 ; ++i ) {
199 +    //   for (int j = i + 1; j < n; ++j) {}
200 +    // }
201 +    
202 +    for (sd1 = sman.beginSelected(i); sd1 != NULL;
203 +         sd1 = sman.nextSelected(i)) {                    
204 +      for (j  = i, sd2 = sman.nextSelected(j); sd2 != NULL;
205 +           sd2 = sman.nextSelected(j)) {
206 +        collectHistogram(sd1, sd2);
207 +      }            
208 +    }
209 +  }
210   }

Comparing trunk/src/applications/staticProps/RadialDistrFunc.cpp (property svn:keywords):
Revision 310 by tim, Thu Feb 10 18:14:03 2005 UTC vs.
Revision 1785 by jmichalk, Wed Aug 22 18:43:27 2012 UTC

# Line 0 | Line 1
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