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root/OpenMD/branches/development/src/selection/HullFinder.cpp
Revision: 1867
Committed: Mon Apr 29 17:53:48 2013 UTC (12 years ago) by gezelter
File size: 6144 byte(s)
Log Message:
Attempt to fix memory leak in Multiple hull calls

File Contents

# User Rev Content
1 gezelter 1412 /*
2     * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3     *
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6     * redistribute this software in source and binary code form, provided
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10     * notice, this list of conditions and the following disclaimer.
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12     * 2. Redistributions in binary form must reproduce the above copyright
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15     * distribution.
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17     * This software is provided "AS IS," without a warranty of any
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21     * excluded. The University of Notre Dame and its licensors shall not
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23     * using, modifying or distributing the software or its
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29     * University of Notre Dame has been advised of the possibility of
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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 gezelter 1850 * [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).
39 gezelter 1665 * [4] Kuang & Gezelter, J. Chem. Phys. 133, 164101 (2010).
40     * [5] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
41 gezelter 1412 */
42    
43     #include "selection/HullFinder.hpp"
44     #include "primitives/Molecule.hpp"
45     #include "math/ConvexHull.hpp"
46    
47     namespace OpenMD {
48    
49     HullFinder::HullFinder(SimInfo* info) : info_(info) {
50    
51     nStuntDoubles_ = info_->getNGlobalAtoms() + info_->getNGlobalRigidBodies();
52     stuntdoubles_.resize(nStuntDoubles_);
53    
54     SimInfo::MoleculeIterator mi;
55     Molecule* mol;
56 gezelter 1769 StuntDouble* sd;
57 gezelter 1412 Molecule::IntegrableObjectIterator ioi;
58     Molecule::AtomIterator ai;
59     Atom* atom;
60     Molecule::RigidBodyIterator rbIter;
61     RigidBody* rb;
62    
63     for (mol = info_->beginMolecule(mi); mol != NULL;
64     mol = info_->nextMolecule(mi)) {
65    
66     // Hull is constructed from all known integrable objects.
67 gezelter 1769 for (sd = mol->beginIntegrableObject(ioi);
68     sd != NULL;
69     sd = mol->nextIntegrableObject(ioi)) {
70     localSites_.push_back(sd);
71 gezelter 1412 }
72    
73     // selection can include atoms (which may be a subset of the IOs)
74     for(atom = mol->beginAtom(ai); atom != NULL;
75     atom = mol->nextAtom(ai)) {
76     stuntdoubles_[atom->getGlobalIndex()] = atom;
77     }
78    
79     // and rigid bodies
80     for (rb = mol->beginRigidBody(rbIter); rb != NULL;
81     rb = mol->nextRigidBody(rbIter)) {
82     stuntdoubles_[rb->getGlobalIndex()] = rb;
83     }
84    
85 chuckv 1438 }
86     #ifdef HAVE_QHULL
87     surfaceMesh_ = new ConvexHull();
88 chuckv 1439 #endif
89     }
90    
91 gezelter 1867 HullFinder::~HullFinder() {
92     delete surfaceMesh_;
93     }
94    
95 chuckv 1439 OpenMDBitSet HullFinder::findHull() {
96     Snapshot* currSnapshot = info_->getSnapshotManager()->getCurrentSnapshot();
97     OpenMDBitSet bsResult(nStuntDoubles_);
98     #ifdef HAVE_QHULL
99     surfaceMesh_->computeHull(localSites_);
100 chuckv 1438 #else
101     sprintf( painCave.errMsg,
102 gezelter 1618 "HullFinder : Hull calculation is not possible without libqhull.\n"
103     "\tPlease rebuild OpenMD with qhull enabled.");
104 gezelter 1866 painCave.severity = OPENMD_ERROR;
105     painCave.isFatal = 1;
106     simError();
107 chuckv 1438 #endif
108 chuckv 1439
109 gezelter 1412 std::vector<Triangle> sMesh = surfaceMesh_->getMesh();
110     int nTriangles = sMesh.size();
111     // Loop over the mesh faces
112     std::vector<Triangle>::iterator face;
113     std::vector<StuntDouble*>::iterator vertex;
114    
115 gezelter 1803 // This will work in parallel because the triangles returned by the mesh
116     // have a NULL stuntDouble if this processor doesn't own the
117    
118 gezelter 1412 for (face = sMesh.begin(); face != sMesh.end(); ++face) {
119     Triangle thisTriangle = *face;
120     std::vector<StuntDouble*> vertexSDs = thisTriangle.getVertices();
121     for (vertex = vertexSDs.begin(); vertex != vertexSDs.end(); ++vertex) {
122     if ((*vertex) != NULL) {
123     bsResult.setBitOn((*vertex)->getGlobalIndex());
124     }
125     }
126     }
127     return bsResult;
128     }
129    
130 gezelter 1831 OpenMDBitSet HullFinder::findHull(int frame) {
131     Snapshot* currSnapshot = info_->getSnapshotManager()->getSnapshot(frame);
132     OpenMDBitSet bsResult(nStuntDoubles_);
133     #ifdef HAVE_QHULL
134     surfaceMesh_->computeHull(localSites_);
135     #else
136     sprintf( painCave.errMsg,
137     "HullFinder : Hull calculation is not possible without libqhull.\n"
138     "\tPlease rebuild OpenMD with qhull enabled.");
139     painCave.severity = OPENMD_ERROR;
140     painCave.isFatal = 1;
141     simError();
142     #endif
143    
144     std::vector<Triangle> sMesh = surfaceMesh_->getMesh();
145     int nTriangles = sMesh.size();
146     // Loop over the mesh faces
147     std::vector<Triangle>::iterator face;
148     std::vector<StuntDouble*>::iterator vertex;
149    
150     // This will work in parallel because the triangles returned by the mesh
151     // have a NULL stuntDouble if this processor doesn't own the
152    
153     for (face = sMesh.begin(); face != sMesh.end(); ++face) {
154     Triangle thisTriangle = *face;
155     std::vector<StuntDouble*> vertexSDs = thisTriangle.getVertices();
156     for (vertex = vertexSDs.begin(); vertex != vertexSDs.end(); ++vertex) {
157     if ((*vertex) != NULL) {
158     bsResult.setBitOn((*vertex)->getGlobalIndex());
159     }
160     }
161     }
162     return bsResult;
163     }
164    
165 gezelter 1412 }

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