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root/group/trunk/OOPSE-2.0/src/integrators/NPT.hpp
Revision: 1930
Committed: Wed Jan 12 22:41:40 2005 UTC (19 years, 5 months ago) by gezelter
File size: 5736 byte(s)
Log Message:
merging new_design branch into OOPSE-2.0

File Contents

# Content
1 /*
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. Acknowledgement of the program authors must be made in any
10 * publication of scientific results based in part on use of the
11 * program. An acceptable form of acknowledgement is citation of
12 * the article in which the program was described (Matthew
13 * A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
14 * J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
15 * Parallel Simulation Engine for Molecular Dynamics,"
16 * J. Comput. Chem. 26, pp. 252-271 (2005))
17 *
18 * 2. Redistributions of source code must retain the above copyright
19 * notice, this list of conditions and the following disclaimer.
20 *
21 * 3. Redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the
24 * distribution.
25 *
26 * This software is provided "AS IS," without a warranty of any
27 * kind. All express or implied conditions, representations and
28 * warranties, including any implied warranty of merchantability,
29 * fitness for a particular purpose or non-infringement, are hereby
30 * excluded. The University of Notre Dame and its licensors shall not
31 * be liable for any damages suffered by licensee as a result of
32 * using, modifying or distributing the software or its
33 * derivatives. In no event will the University of Notre Dame or its
34 * licensors be liable for any lost revenue, profit or data, or for
35 * direct, indirect, special, consequential, incidental or punitive
36 * damages, however caused and regardless of the theory of liability,
37 * arising out of the use of or inability to use software, even if the
38 * University of Notre Dame has been advised of the possibility of
39 * such damages.
40 */
41
42 /**
43 * @file NPT.hpp
44 * @author tlin
45 * @date 11/19/2004
46 * @time 13:25am
47 * @version 1.0
48 */
49
50 #ifndef INTEGRATORS_NPT_HPP
51 #define INTEGRATORS_NPT_HPP
52
53 #include "integrators/VelocityVerletIntegrator.hpp"
54
55 namespace oopse {
56 class NPT : public VelocityVerletIntegrator {
57 public:
58
59 NPT(SimInfo * info);
60 virtual ~NPT();
61
62
63 int getMaxIterationNumber() {
64 return maxIterNum_;
65 }
66
67 void setMaxIterationNumber(int maxIter) {
68 maxIterNum_ = maxIter;
69 }
70 double getTauThermostat() {
71 return tauThermostat;
72 }
73
74 void setTauThermostat(double tt) {
75 tauThermostat = tt;
76 }
77
78 double getTauBarostat() {
79 return tauBarostat;
80 }
81 void setTauBarostat(double tb) {
82 tauBarostat = tb;
83 }
84
85 double getTargetTemp() {
86 return targetTemp;
87 }
88
89 void setTargetTemp(double tt) {
90 targetTemp = tt;
91 }
92
93 double getTargetPressure() {
94 return targetTemp;
95 }
96
97 void setTargetPressure(double tp) {
98 targetPressure = tp;
99 }
100
101 double getChiTolerance() {
102 return chiTolerance;
103 }
104
105 void setChiTolerance(double tol) {
106 chiTolerance = tol;
107 }
108
109 double getEtaTolerance() {
110 return etaTolerance;
111 }
112
113 void setEtaTolerance(double tol) {
114 etaTolerance = tol;
115 }
116
117 protected:
118
119 virtual void integrateStep() {
120 needStress= true;
121 VelocityVerletIntegrator::integrateStep();
122 }
123
124 virtual void doUpdate();
125
126 double NkBT;
127 double fkBT;
128
129 double tt2;
130 double tb2;
131
132 double instaTemp;
133 double instaPress;
134 double instaVol;
135
136
137 // targetTemp, targetPressure, and tauBarostat must be set.
138 // One of qmass or tauThermostat must be set;
139
140 double targetTemp;
141 double targetPressure;
142 double tauThermostat;
143 double tauBarostat;
144
145 std::vector<Vector3d> oldPos;
146 std::vector<Vector3d> oldVel;
147 std::vector<Vector3d> oldJi;
148
149 double etaTolerance;
150
151 double chi;
152 double integralOfChidt;
153 Mat3x3d press;
154
155 private:
156
157 virtual void moveA();
158 virtual void moveB();
159
160 virtual void getVelScaleA(Vector3d& sc, const Vector3d& vel) = 0;
161
162 virtual void getVelScaleB(Vector3d& sc, int index) = 0;
163
164 virtual void getPosScale(const Vector3d& pos, const Vector3d& COM,
165 int index, Vector3d& sc) = 0;
166
167 virtual void calcVelScale() = 0;
168
169 virtual bool etaConverged() = 0;
170
171 virtual void evolveEtaA() = 0;
172
173 virtual void evolveEtaB() = 0;
174
175 virtual void scaleSimBox() = 0;
176
177 virtual double calcConservedQuantity() = 0;
178
179 virtual void loadEta() = 0;
180 virtual void saveEta() = 0;
181
182 int maxIterNum_;
183
184 double chiTolerance;
185 };
186
187 } //end namespace oopse
188
189 #endif //INTEGRATORS_NPT_HPP