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root/OpenMD/branches/development/src/integrators/NVT.hpp
Revision: 963
Committed: Wed May 17 21:51:42 2006 UTC (18 years, 11 months ago) by tim
Original Path: trunk/src/integrators/NVT.hpp
File size: 3567 byte(s)
Log Message:
Adding single precision capabilities to c++ side

File Contents

# User Rev Content
1 gezelter 507 /*
2 gezelter 246 * 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 gezelter 507 /**
43     * @file NVT.hpp
44     * @author tlin
45     * @date 11/19/2004
46     * @time 13:25am
47     * @version 1.0
48     */
49 gezelter 246
50     #ifndef INTEGRATOR_NVT_HPP
51     #define INTEGRATOR_NVT_HPP
52    
53     #include "integrators/VelocityVerletIntegrator.hpp"
54    
55     namespace oopse {
56    
57 gezelter 507 /**
58     * @class NVT NVT.hpp "integrators/NVT.hpp"
59     * Basic thermostating via Hoover, Phys.Rev.A, 1985, Vol. 31 (5) 1695-1697
60     * @todo document
61     */
62     class NVT : public VelocityVerletIntegrator{
63     public:
64     NVT(SimInfo* info);
65 gezelter 246
66 gezelter 507 int getMaxIterationNumber() {
67     return maxIterNum_;
68     }
69 gezelter 246
70 gezelter 507 void setMaxIterationNumber(int maxIter) {
71     maxIterNum_ = maxIter;
72     }
73 gezelter 246
74 tim 963 RealType getTauThermostat() {
75 gezelter 507 return tauThermostat_;
76     }
77 gezelter 246
78 tim 963 void setTauThermostat(RealType tt) {
79 gezelter 507 tauThermostat_ = tt;
80     }
81 gezelter 246
82 tim 963 RealType getTargetTemp() {
83 gezelter 507 return targetTemp_;
84     }
85 gezelter 246
86 tim 963 void setTargetTemp(RealType tt) {
87 gezelter 507 targetTemp_ = tt;
88     }
89 gezelter 246
90 tim 963 RealType getChiTolerance() {
91 gezelter 507 return chiTolerance_;
92     }
93 gezelter 246
94 tim 963 void setChiTolerance(RealType tol) {
95 gezelter 507 chiTolerance_ = tol;
96     }
97 gezelter 246
98    
99 gezelter 507 protected:
100     virtual void moveA();
101 gezelter 246
102 gezelter 507 virtual void moveB();
103 gezelter 246
104 gezelter 507 virtual void doUpdate() ;
105 tim 546
106     virtual void resetIntegrator();
107    
108 gezelter 507 private:
109 tim 963 virtual RealType calcConservedQuantity();
110 gezelter 246
111 gezelter 507 int maxIterNum_;
112 tim 963 RealType targetTemp_;
113     RealType tauThermostat_;
114     RealType chiTolerance_;
115 gezelter 246
116 gezelter 507 std::vector<Vector3d> oldVel_;
117     std::vector<Vector3d> oldJi_;
118     };
119 gezelter 246
120    
121     } //end namespace oopse
122    
123     #endif //INTEGRATOR_NVT_HPP