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root/OpenMD/branches/development/src/UseTheForce/MnM_FF.cpp
Revision: 1489
Committed: Tue Aug 10 18:34:59 2010 UTC (14 years, 8 months ago) by gezelter
File size: 9357 byte(s)
Log Message:
Migrating Sutton-Chen from Fortran over to C++

File Contents

# User Rev Content
1 chuckv 1152 /*
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 gezelter 1390 * 1. Redistributions of source code must retain the above copyright
10 chuckv 1152 * notice, this list of conditions and the following disclaimer.
11     *
12 gezelter 1390 * 2. Redistributions in binary form must reproduce the above copyright
13 chuckv 1152 * 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 gezelter 1390 *
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 chuckv 1152 */
41    
42    
43     #include "UseTheForce/MnM_FF.hpp"
44     #include "UseTheForce/ForceFieldFactory.hpp"
45     #include "io/DirectionalAtomTypesSectionParser.hpp"
46 gezelter 1280 #include "io/BaseAtomTypesSectionParser.hpp"
47 chuckv 1152 #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/MetalNonMetalInteractionsSectionParser.hpp"
58     #include "io/EAMAtomTypesSectionParser.hpp"
59     #include "io/SCAtomTypesSectionParser.hpp"
60     #include "io/OptionSectionParser.hpp"
61     #include "UseTheForce/ForceFieldCreator.hpp"
62    
63    
64 gezelter 1390 namespace OpenMD {
65 gezelter 1238
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 gezelter 1280 spMan_.push_back(new BaseAtomTypesSectionParser());
86 gezelter 1282 spMan_.push_back(new AtomTypesSectionParser());
87 gezelter 1238 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 MetalNonMetalInteractionsSectionParser(forceFieldOptions_));
97     spMan_.push_back(new SCAtomTypesSectionParser(forceFieldOptions_));
98     spMan_.push_back(new EAMAtomTypesSectionParser(forceFieldOptions_));
99     spMan_.push_back(new TorsionTypesSectionParser(forceFieldOptions_));
100    
101 chuckv 1162 }
102    
103 gezelter 1238 void MnM_FF::parse(const std::string& filename) {
104     ifstrstream* ffStream;
105    
106     ffStream = openForceFieldFile(filename);
107 chuckv 1152
108 gezelter 1238 spMan_.parse(*ffStream, *this);
109 chuckv 1162
110 gezelter 1238 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 gezelter 1280 // 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    
126     ayb[j-1]->useBase(ayb[j]);
127    
128     }
129     }
130 gezelter 1238 at->makeFortranAtomType();
131     }
132    
133     for (at = atomTypeCont_.beginType(i); at != NULL;
134     at = atomTypeCont_.nextType(i)) {
135     at->complete();
136     }
137    
138     hasSCtypes_ = false;
139     for (at = atomTypeCont_.beginType(i); at != NULL;
140     at = atomTypeCont_.nextType(i)) {
141     if (at->isSC())
142     hasSCtypes_ = true;
143     }
144    
145     hasEAMtypes_ = false;
146     for (at = atomTypeCont_.beginType(i); at != NULL;
147     at = atomTypeCont_.nextType(i)) {
148     if (at->isEAM())
149     hasEAMtypes_ = true;
150     }
151    
152     if (hasEAMtypes_ && hasSCtypes_) {
153     sprintf(painCave.errMsg,
154     "MnM_FF forcefield cannot use both EAM and Sutton-Chen at the same time\n");
155 gezelter 1390 painCave.severity = OPENMD_ERROR;
156 gezelter 1238 painCave.isFatal = 1;
157     simError();
158     }
159    
160     /* to handle metal-nonmetal interactions, first we loop over
161     all atom types: */
162    
163     for (at = atomTypeCont_.beginType(i); at != NULL;
164     at = atomTypeCont_.nextType(i)) {
165 chuckv 1162
166 gezelter 1238 /* if we find a metallic atom, we need to compare against
167     all other atom types */
168    
169     if (at->isEAM() || at->isSC()) {
170    
171     /* loop over all other atom types */
172     for (at2 = atomTypeCont_.beginType(j); at2 != NULL;
173     at2 = atomTypeCont_.nextType(j)) {
174    
175     /* if the other partner is not a metallic type, we need to
176     look for explicit non-bonded interactions */
177     if (!at2->isEAM() && !at2->isSC()) {
178 chuckv 1162
179 gezelter 1238 /* get the name and ident of the metallic atom type */
180     std::string at1s = at->getName();
181     int atid1 = at->getIdent();
182 chuckv 1162
183 gezelter 1238 /* get the name and ident of the nonmetallic atom type */
184     std::string at2s = at2->getName();
185     int atid2 = at2->getIdent();
186 chuckv 1162
187 gezelter 1238 /* look for a match in the non-bonded interactions parsed
188     from the force field file */
189     nbit = getNonBondedInteractionType(at1s, at2s);
190 chuckv 1252
191 gezelter 1238 /* if we found a match (even a partial match), punt to the
192     interaction to poke our info down to fortran. */
193     if (nbit != NULL) nbit->tellFortran(atid1, atid2);
194     }
195     }
196 chuckv 1162 }
197 chuckv 1152 }
198 gezelter 1238
199     delete ffStream;
200    
201 chuckv 1152 }
202 chuckv 1162
203    
204 gezelter 1238 RealType MnM_FF::getRcutFromAtomType(AtomType* at) {
205     RealType rcut = 0.0;
206     if (at->isEAM()) {
207     GenericData* data = at->getPropertyByName("EAM");
208     if (data != NULL) {
209     EAMParamGenericData* eamData = dynamic_cast<EAMParamGenericData*>(data);
210    
211     if (eamData != NULL) {
212    
213     EAMParam& eamParam = eamData->getData();
214     rcut = eamParam.rcut;
215     }
216     else {
217     sprintf(painCave.errMsg,
218     "Can not cast GenericData to EAMParam\n");
219 gezelter 1390 painCave.severity = OPENMD_ERROR;
220 gezelter 1238 painCave.isFatal = 1;
221     simError();
222     }
223     }
224     else {
225     sprintf(painCave.errMsg, "Can not find EAM Parameters\n");
226 gezelter 1390 painCave.severity = OPENMD_ERROR;
227 gezelter 1238 painCave.isFatal = 1;
228     simError();
229     }
230     }
231     else {
232     rcut = ForceField::getRcutFromAtomType(at);
233     }
234    
235     return rcut;
236     }
237 gezelter 1390 } //end namespace OpenMD
238 chuckv 1162

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