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root/OpenMD/trunk/src/UseTheForce/EADM_FF.cpp
Revision: 1605
Committed: Mon Aug 8 18:56:28 2011 UTC (13 years, 9 months ago) by jmichalk
File size: 7206 byte(s)
Log Message:
Forgot to svn add the EADM_FF.cpp/hpp -JRM

File Contents

# User Rev Content
1 jmichalk 1605 /*
2     * Copyright (c) 2005 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     #include "UseTheForce/EADM_FF.hpp"
43     #include "UseTheForce/DarkSide/eam_interface.h"
44     #include "UseTheForce/ForceFieldFactory.hpp"
45    
46     #include "io/DirectionalAtomTypesSectionParser.hpp"
47     #include "io/BaseAtomTypesSectionParser.hpp"
48     #include "io/AtomTypesSectionParser.hpp"
49     #include "io/LennardJonesAtomTypesSectionParser.hpp"
50     #include "io/ChargeAtomTypesSectionParser.hpp"
51     #include "io/MultipoleAtomTypesSectionParser.hpp"
52     #include "io/MetalNonMetalInteractionsSectionParser.hpp"
53     #include "io/EAMAtomTypesSectionParser.hpp"
54     #include "io/OptionSectionParser.hpp"
55    
56     #include "UseTheForce/ForceFieldCreator.hpp"
57     #include "utils/simError.h"
58     namespace OpenMD {
59    
60     EADM_FF::EADM_FF(){
61    
62     //set default force field filename
63     setForceFieldFileName("EADM.frc");
64    
65     //the order of adding section parsers are important
66     //OptionSectionParser must come first to set options for other parsers
67    
68     spMan_.push_back(new OptionSectionParser(forceFieldOptions_));
69     spMan_.push_back(new BaseAtomTypesSectionParser());
70     spMan_.push_back(new AtomTypesSectionParser());
71     spMan_.push_back(new DirectionalAtomTypesSectionParser(forceFieldOptions_));
72     spMan_.push_back(new ChargeAtomTypesSectionParser(forceFieldOptions_));
73     spMan_.push_back(new MultipoleAtomTypesSectionParser(forceFieldOptions_));
74     spMan_.push_back(new MetalNonMetalInteractionsSectionParser(forceFieldOptions_));
75     spMan_.push_back(new EAMAtomTypesSectionParser(forceFieldOptions_));
76    
77     }
78    
79     void EADM_FF::parse(const std::string& filename) {
80     ifstrstream* ffStream;
81     ffStream = openForceFieldFile(filename);
82    
83     spMan_.parse(*ffStream, *this);
84    
85     ForceField::AtomTypeContainer::MapTypeIterator i;
86     AtomType* at;
87     ForceField::AtomTypeContainer::MapTypeIterator j;
88     AtomType* at2;
89     ForceField::NonBondedInteractionTypeContainer::MapTypeIterator k;
90     NonBondedInteractionType* nbit;
91    
92     for (at = atomTypeCont_.beginType(i); at != NULL; at = atomTypeCont_.nextType(i)) {
93     // useBase sets the responsibilities, and these have to be done
94     // after the atomTypes and Base types have all been scanned:
95    
96     std::vector<AtomType*> ayb = at->allYourBase();
97     if (ayb.size() > 1) {
98     for (int j = ayb.size()-1; j > 0; j--) {
99    
100     ayb[j-1]->useBase(ayb[j]);
101    
102     }
103     }
104     at->makeFortranAtomType();
105     }
106    
107     for( at = atomTypeCont_.beginType(i); at != NULL; at = atomTypeCont_.nextType(i)) {
108     at->complete();
109     }
110    
111     hasEAMtypes_ = false;
112     for (at = atomTypeCont_.beginType(i); at != NULL;
113     at = atomTypeCont_.nextType(i)) {
114     if (at->isEAM())
115     hasEAMtypes_ = true;
116     }
117    
118     /* to handle metal-nonmetal interactions, first we loop over
119     all atom types: */
120    
121     for (at = atomTypeCont_.beginType(i); at != NULL;
122     at = atomTypeCont_.nextType(i)) {
123    
124     /* if we find a metallic atom, we need to compare against
125     all other atom types */
126    
127     if (at->isEAM()) {
128    
129     /* loop over all other atom types */
130     for (at2 = atomTypeCont_.beginType(j); at2 != NULL;
131     at2 = atomTypeCont_.nextType(j)) {
132    
133     /* if the other partner is not a metallic type, we need to
134     look for explicit non-bonded interactions */
135     if (!at2->isEAM()) {
136    
137     /* get the name and ident of the metallic atom type */
138     std::string at1s = at->getName();
139     int atid1 = at->getIdent();
140    
141     /* get the name and ident of the nonmetallic atom type */
142     std::string at2s = at2->getName();
143     int atid2 = at2->getIdent();
144    
145    
146     /* look for a match in the non-bonded interactions parsed
147     from the force field file */
148     nbit = getNonBondedInteractionType(at1s, at2s);
149    
150     /* if we found a match (even a partial match), punt to the
151     interaction to poke our info down to fortran. */
152     if (nbit != NULL){
153     nbit->tellFortran(atid1, atid2);
154     }
155     }
156     }
157     }
158     }
159    
160     delete ffStream;
161     }
162    
163    
164     RealType EADM_FF::getRcutFromAtomType(AtomType* at){
165     RealType rcut = 0.0;
166     if (at->isEAM()) {
167     GenericData* data = at->getPropertyByName("EAM");
168     if (data != NULL) {
169     EAMParamGenericData* eamData = dynamic_cast<EAMParamGenericData*>(data);
170    
171     if (eamData != NULL) {
172    
173     EAMParam& eamParam = eamData->getData();
174     rcut = eamParam.rcut;
175     } else {
176     sprintf( painCave.errMsg,
177     "Can not cast GenericData to EAMParam\n");
178     painCave.severity = OPENMD_ERROR;
179     painCave.isFatal = 1;
180     simError();
181     }
182     } else {
183     sprintf( painCave.errMsg, "Can not find EAM Parameters\n");
184     painCave.severity = OPENMD_ERROR;
185     painCave.isFatal = 1;
186     simError();
187     }
188     } else {
189     rcut = ForceField::getRcutFromAtomType(at);
190     }
191    
192     return rcut;
193     }
194    
195     EADM_FF::~EADM_FF(){
196     //We need to clean up the fortran side so we don't have bad things happen if
197     //we try to create a second EADM force field.
198     destroyEAMTypes();
199     }
200     } //end namespace OpenMD