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root/OpenMD/branches/development/src/UseTheForce/MnM_FF.cpp
Revision: 1629
Committed: Wed Sep 14 21:15:17 2011 UTC (13 years, 7 months ago) by gezelter
File size: 7733 byte(s)
Log Message:
Merging changes from old branch into development branch

File Contents

# Content
1 /*
2 * Copyright (c) 2007 The University of Notre Dame. All Rights Reserved.
3 *
4 * The University of Notre Dame grants you ("Licensee") a
5 * non-exclusive, royalty free, license to use, modify and
6 * redistribute this software in source and binary code form, provided
7 * that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
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.
16 *
17 * This software is provided "AS IS," without a warranty of any
18 * kind. All express or implied conditions, representations and
19 * warranties, including any implied warranty of merchantability,
20 * fitness for a particular purpose or non-infringement, are hereby
21 * excluded. The University of Notre Dame and its licensors shall not
22 * be liable for any damages suffered by licensee as a result of
23 * using, modifying or distributing the software or its
24 * derivatives. In no event will the University of Notre Dame or its
25 * licensors be liable for any lost revenue, profit or data, or for
26 * direct, indirect, special, consequential, incidental or punitive
27 * damages, however caused and regardless of the theory of liability,
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] Vardeman & Gezelter, in progress (2009).
40 */
41
42
43 #include "UseTheForce/MnM_FF.hpp"
44 #include "UseTheForce/ForceFieldFactory.hpp"
45 #include "io/DirectionalAtomTypesSectionParser.hpp"
46 #include "io/BaseAtomTypesSectionParser.hpp"
47 #include "io/AtomTypesSectionParser.hpp"
48 #include "io/LennardJonesAtomTypesSectionParser.hpp"
49 #include "io/ChargeAtomTypesSectionParser.hpp"
50 #include "io/MultipoleAtomTypesSectionParser.hpp"
51 #include "io/StickyAtomTypesSectionParser.hpp"
52 #include "io/StickyPowerAtomTypesSectionParser.hpp"
53 #include "io/GayBerneAtomTypesSectionParser.hpp"
54 #include "io/BondTypesSectionParser.hpp"
55 #include "io/BendTypesSectionParser.hpp"
56 #include "io/TorsionTypesSectionParser.hpp"
57 #include "io/NonBondedInteractionsSectionParser.hpp"
58 #include "io/EAMAtomTypesSectionParser.hpp"
59 #include "io/SCAtomTypesSectionParser.hpp"
60 #include "io/OptionSectionParser.hpp"
61 #include "UseTheForce/ForceFieldCreator.hpp"
62
63
64 namespace OpenMD {
65
66 MnM_FF::MnM_FF() {
67
68 //set default force field filename
69 setForceFieldFileName("MnM.frc");
70
71 //The order of adding section parsers is important.
72 //OptionSectionParser must come first to set options for other parsers
73 //DirectionalAtomTypesSectionParser should be added before
74 //AtomTypesSectionParser, and these two section parsers will actually
75 //create "real" AtomTypes (AtomTypesSectionParser will create AtomType and
76 //DirectionalAtomTypesSectionParser will create DirectionalAtomType, which
77 //is a subclass of AtomType and should come first). Other AtomTypes Section
78 //Parser will not create the "real" AtomType, they only add and set some
79 //attribute of the AtomType. Thus their order are not important.
80 //AtomTypesSectionParser should be added before other atom type section
81 //parsers. Make sure they are added after DirectionalAtomTypesSectionParser
82 //and AtomTypesSectionParser. The order of BondTypesSectionParser,
83 //BendTypesSectionParser and TorsionTypesSectionParser are not important.
84 spMan_.push_back(new OptionSectionParser(forceFieldOptions_));
85 spMan_.push_back(new BaseAtomTypesSectionParser());
86 spMan_.push_back(new AtomTypesSectionParser());
87 spMan_.push_back(new DirectionalAtomTypesSectionParser(forceFieldOptions_));
88 spMan_.push_back(new LennardJonesAtomTypesSectionParser(forceFieldOptions_));
89 spMan_.push_back(new ChargeAtomTypesSectionParser(forceFieldOptions_));
90 spMan_.push_back(new MultipoleAtomTypesSectionParser(forceFieldOptions_));
91 spMan_.push_back(new StickyAtomTypesSectionParser(forceFieldOptions_));
92 spMan_.push_back(new StickyPowerAtomTypesSectionParser(forceFieldOptions_));
93 spMan_.push_back(new GayBerneAtomTypesSectionParser(forceFieldOptions_));
94 spMan_.push_back(new BondTypesSectionParser(forceFieldOptions_));
95 spMan_.push_back(new BendTypesSectionParser(forceFieldOptions_));
96 spMan_.push_back(new NonBondedInteractionsSectionParser(forceFieldOptions_));
97 spMan_.push_back(new SCAtomTypesSectionParser(forceFieldOptions_));
98 spMan_.push_back(new EAMAtomTypesSectionParser(forceFieldOptions_));
99 spMan_.push_back(new TorsionTypesSectionParser(forceFieldOptions_));
100
101 }
102
103 void MnM_FF::parse(const std::string& filename) {
104 ifstrstream* ffStream;
105
106 ffStream = openForceFieldFile(filename);
107
108 spMan_.parse(*ffStream, *this);
109
110 ForceField::AtomTypeContainer::MapTypeIterator i;
111 AtomType* at;
112 ForceField::AtomTypeContainer::MapTypeIterator j;
113 AtomType* at2;
114 ForceField::NonBondedInteractionTypeContainer::MapTypeIterator k;
115 NonBondedInteractionType* nbit;
116
117 for (at = atomTypeCont_.beginType(i); at != NULL;
118 at = atomTypeCont_.nextType(i)) {
119 // useBase sets the responsibilities, and these have to be done
120 // after the atomTypes and Base types have all been scanned:
121
122 std::vector<AtomType*> ayb = at->allYourBase();
123 if (ayb.size() > 1) {
124 for (int j = ayb.size()-1; j > 0; j--) {
125 ayb[j-1]->useBase(ayb[j]);
126 }
127 }
128 }
129
130 hasSCtypes_ = false;
131 for (at = atomTypeCont_.beginType(i); at != NULL;
132 at = atomTypeCont_.nextType(i)) {
133 if (at->isSC())
134 hasSCtypes_ = true;
135 }
136
137 hasEAMtypes_ = false;
138 for (at = atomTypeCont_.beginType(i); at != NULL;
139 at = atomTypeCont_.nextType(i)) {
140 if (at->isEAM())
141 hasEAMtypes_ = true;
142 }
143
144 if (hasEAMtypes_ && hasSCtypes_) {
145 sprintf(painCave.errMsg,
146 "MnM_FF forcefield cannot use both EAM and Sutton-Chen at the same time\n");
147 painCave.severity = OPENMD_ERROR;
148 painCave.isFatal = 1;
149 simError();
150 }
151
152 delete ffStream;
153
154 }
155
156
157 RealType MnM_FF::getRcutFromAtomType(AtomType* at) {
158 RealType rcut = 0.0;
159 if (at->isEAM()) {
160 GenericData* data = at->getPropertyByName("EAM");
161 if (data != NULL) {
162 EAMParamGenericData* eamData = dynamic_cast<EAMParamGenericData*>(data);
163
164 if (eamData != NULL) {
165
166 EAMParam& eamParam = eamData->getData();
167 rcut = eamParam.rcut;
168 }
169 else {
170 sprintf(painCave.errMsg,
171 "Can not cast GenericData to EAMParam\n");
172 painCave.severity = OPENMD_ERROR;
173 painCave.isFatal = 1;
174 simError();
175 }
176 }
177 else {
178 sprintf(painCave.errMsg, "Can not find EAM Parameters\n");
179 painCave.severity = OPENMD_ERROR;
180 painCave.isFatal = 1;
181 simError();
182 }
183 }
184 else {
185 rcut = ForceField::getRcutFromAtomType(at);
186 }
187
188 return rcut;
189 }
190 } //end namespace OpenMD
191

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