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root/OpenMD/trunk/src/UseTheForce/MnM_FF.cpp
Revision: 1555
Committed: Tue May 10 20:54:47 2011 UTC (13 years, 11 months ago) by gezelter
File size: 9717 byte(s)
Log Message:
Bug fix to traverse the base chains for NON-bonded interactions as
well as bonded.  This allows one to specify Metal - non-Metal
interactions based on base types instead of exact matches.


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/DarkSide/lj_interface.h"
45 #include "UseTheForce/DarkSide/sticky_interface.h"
46 #include "UseTheForce/DarkSide/eam_interface.h"
47 #include "UseTheForce/DarkSide/suttonchen_interface.h"
48 #include "UseTheForce/ForceFieldFactory.hpp"
49 #include "io/DirectionalAtomTypesSectionParser.hpp"
50 #include "io/BaseAtomTypesSectionParser.hpp"
51 #include "io/AtomTypesSectionParser.hpp"
52 #include "io/LennardJonesAtomTypesSectionParser.hpp"
53 #include "io/ChargeAtomTypesSectionParser.hpp"
54 #include "io/MultipoleAtomTypesSectionParser.hpp"
55 #include "io/StickyAtomTypesSectionParser.hpp"
56 #include "io/StickyPowerAtomTypesSectionParser.hpp"
57 #include "io/GayBerneAtomTypesSectionParser.hpp"
58 #include "io/BondTypesSectionParser.hpp"
59 #include "io/BendTypesSectionParser.hpp"
60 #include "io/TorsionTypesSectionParser.hpp"
61 #include "io/MetalNonMetalInteractionsSectionParser.hpp"
62 #include "io/EAMAtomTypesSectionParser.hpp"
63 #include "io/SCAtomTypesSectionParser.hpp"
64 #include "io/OptionSectionParser.hpp"
65 #include "UseTheForce/ForceFieldCreator.hpp"
66
67
68 namespace OpenMD {
69
70 MnM_FF::MnM_FF() {
71
72 //set default force field filename
73 setForceFieldFileName("MnM.frc");
74
75 //The order of adding section parsers is important.
76 //OptionSectionParser must come first to set options for other parsers
77 //DirectionalAtomTypesSectionParser should be added before
78 //AtomTypesSectionParser, and these two section parsers will actually
79 //create "real" AtomTypes (AtomTypesSectionParser will create AtomType and
80 //DirectionalAtomTypesSectionParser will create DirectionalAtomType, which
81 //is a subclass of AtomType and should come first). Other AtomTypes Section
82 //Parser will not create the "real" AtomType, they only add and set some
83 //attribute of the AtomType. Thus their order are not important.
84 //AtomTypesSectionParser should be added before other atom type section
85 //parsers. Make sure they are added after DirectionalAtomTypesSectionParser
86 //and AtomTypesSectionParser. The order of BondTypesSectionParser,
87 //BendTypesSectionParser and TorsionTypesSectionParser are not important.
88 spMan_.push_back(new OptionSectionParser(forceFieldOptions_));
89 spMan_.push_back(new BaseAtomTypesSectionParser());
90 spMan_.push_back(new AtomTypesSectionParser());
91 spMan_.push_back(new DirectionalAtomTypesSectionParser(forceFieldOptions_));
92 spMan_.push_back(new LennardJonesAtomTypesSectionParser(forceFieldOptions_));
93 spMan_.push_back(new ChargeAtomTypesSectionParser(forceFieldOptions_));
94 spMan_.push_back(new MultipoleAtomTypesSectionParser(forceFieldOptions_));
95 spMan_.push_back(new StickyAtomTypesSectionParser(forceFieldOptions_));
96 spMan_.push_back(new StickyPowerAtomTypesSectionParser(forceFieldOptions_));
97 spMan_.push_back(new GayBerneAtomTypesSectionParser(forceFieldOptions_));
98 spMan_.push_back(new BondTypesSectionParser(forceFieldOptions_));
99 spMan_.push_back(new BendTypesSectionParser(forceFieldOptions_));
100 spMan_.push_back(new MetalNonMetalInteractionsSectionParser(forceFieldOptions_));
101 spMan_.push_back(new SCAtomTypesSectionParser(forceFieldOptions_));
102 spMan_.push_back(new EAMAtomTypesSectionParser(forceFieldOptions_));
103 spMan_.push_back(new TorsionTypesSectionParser(forceFieldOptions_));
104
105 }
106
107 void MnM_FF::parse(const std::string& filename) {
108 ifstrstream* ffStream;
109
110 ffStream = openForceFieldFile(filename);
111
112 spMan_.parse(*ffStream, *this);
113
114 ForceField::AtomTypeContainer::MapTypeIterator i;
115 AtomType* at;
116 ForceField::AtomTypeContainer::MapTypeIterator j;
117 AtomType* at2;
118 ForceField::NonBondedInteractionTypeContainer::MapTypeIterator k;
119 NonBondedInteractionType* nbit;
120
121 for (at = atomTypeCont_.beginType(i); at != NULL;
122 at = atomTypeCont_.nextType(i)) {
123 // useBase sets the responsibilities, and these have to be done
124 // after the atomTypes and Base types have all been scanned:
125
126 std::vector<AtomType*> ayb = at->allYourBase();
127 if (ayb.size() > 1) {
128 for (int j = ayb.size()-1; j > 0; j--) {
129 ayb[j-1]->useBase(ayb[j]);
130 }
131 }
132 at->makeFortranAtomType();
133 }
134
135 for (at = atomTypeCont_.beginType(i); at != NULL;
136 at = atomTypeCont_.nextType(i)) {
137 at->complete();
138 }
139
140 hasSCtypes_ = false;
141 for (at = atomTypeCont_.beginType(i); at != NULL;
142 at = atomTypeCont_.nextType(i)) {
143 if (at->isSC())
144 hasSCtypes_ = true;
145 }
146
147 hasEAMtypes_ = false;
148 for (at = atomTypeCont_.beginType(i); at != NULL;
149 at = atomTypeCont_.nextType(i)) {
150 if (at->isEAM())
151 hasEAMtypes_ = true;
152 }
153
154 if (hasEAMtypes_ && hasSCtypes_) {
155 sprintf(painCave.errMsg,
156 "MnM_FF forcefield cannot use both EAM and Sutton-Chen at the same time\n");
157 painCave.severity = OPENMD_ERROR;
158 painCave.isFatal = 1;
159 simError();
160 }
161
162 /* to handle metal-nonmetal interactions, first we loop over
163 all atom types: */
164
165 for (at = atomTypeCont_.beginType(i); at != NULL;
166 at = atomTypeCont_.nextType(i)) {
167
168 /* if we find a metallic atom, we need to compare against
169 all other atom types */
170
171 if (at->isEAM() || at->isSC()) {
172
173 /* loop over all other atom types */
174 for (at2 = atomTypeCont_.beginType(j); at2 != NULL;
175 at2 = atomTypeCont_.nextType(j)) {
176
177 /* if the other partner is not a metallic type, we need to
178 look for explicit non-bonded interactions */
179 if (!at2->isEAM() && !at2->isSC()) {
180
181 /* get the name and ident of the metallic atom type */
182 std::string at1s = at->getName();
183 int atid1 = at->getIdent();
184
185 /* get the name and ident of the nonmetallic atom type */
186 std::string at2s = at2->getName();
187 int atid2 = at2->getIdent();
188
189 /* look for a match in the non-bonded interactions parsed
190 from the force field file */
191 nbit = getNonBondedInteractionType(at1s, at2s);
192
193 /* if we found a match (even a partial match), punt to the
194 interaction to poke our info down to fortran. */
195 if (nbit != NULL) nbit->tellFortran(atid1, atid2);
196 }
197 }
198 }
199 }
200
201 delete ffStream;
202
203 }
204
205
206 RealType MnM_FF::getRcutFromAtomType(AtomType* at) {
207 RealType rcut = 0.0;
208 if (at->isEAM()) {
209 GenericData* data = at->getPropertyByName("EAM");
210 if (data != NULL) {
211 EAMParamGenericData* eamData = dynamic_cast<EAMParamGenericData*>(data);
212
213 if (eamData != NULL) {
214
215 EAMParam& eamParam = eamData->getData();
216 rcut = eamParam.rcut;
217 }
218 else {
219 sprintf(painCave.errMsg,
220 "Can not cast GenericData to EAMParam\n");
221 painCave.severity = OPENMD_ERROR;
222 painCave.isFatal = 1;
223 simError();
224 }
225 }
226 else {
227 sprintf(painCave.errMsg, "Can not find EAM Parameters\n");
228 painCave.severity = OPENMD_ERROR;
229 painCave.isFatal = 1;
230 simError();
231 }
232 }
233 else {
234 rcut = ForceField::getRcutFromAtomType(at);
235 }
236
237 return rcut;
238 }
239
240 MnM_FF::~MnM_FF() {
241 destroyLJTypes();
242 destroyStickyTypes();
243 if (hasEAMtypes_) destroyEAMTypes();
244 if (hasSCtypes_) destroySCTypes();
245 }
246 } //end namespace OpenMD
247

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