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root/OpenMD/trunk/src/math/RandNumGen.hpp
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Comparing trunk/src/math/RandNumGen.hpp (file contents):
Revision 394 by tim, Wed Mar 2 16:29:47 2005 UTC vs.
Revision 1390 by gezelter, Wed Nov 25 20:02:06 2009 UTC

# Line 1 | Line 1
1 < /*
1 > /*
2   * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3   *
4   * The University of Notre Dame grants you ("Licensee") a
# Line 6 | Line 6
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
9 > * 1. Redistributions of source code must retain the above copyright
10   *    notice, this list of conditions and the following disclaimer.
11   *
12 < * 3. Redistributions in binary form must reproduce the above copyright
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.
# Line 37 | Line 28
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   #ifndef MATH_RANDNUMGEN_HPP
43   #define MATH_RANDNUMGEN_HPP
44  
45   #include <vector>
46 + #include "config.h"
47   #include "MersenneTwister.hpp"
48   #include "utils/simError.h"
49  
50  
51 < namespace oopse {
51 > namespace OpenMD {
52  
53 <
54 <
55 < /**
56 < * @class RandNumGen a random number generator class
57 < */
58 < class RandNumGen{
58 <    public:
59 <        typedef unsigned long uint32;
53 >  /**
54 >   * @class RandNumGen a random number generator class
55 >   */
56 >  class RandNumGen{
57 >  public:
58 >    typedef unsigned long uint32;
59          
60 <        virtual ~RandNumGen() {
61 <            delete mtRand_;
62 <        }
60 >    virtual ~RandNumGen() {
61 >      delete mtRand_;
62 >    }
63          
64 <        /** Returns a real number in [0,1] */
65 <        double rand() {
66 <            return mtRand_->rand();
67 <        }
64 >    /** Returns a real number in [0,1] */
65 >    RealType rand() {
66 >      return mtRand_->rand();
67 >    }
68  
69 <        /** Returns a real number in [0, n] */
70 <        double rand( const double& n ) {
71 <            return mtRand_->rand(n);
72 <        }
69 >    /** Returns a real number in [0, n] */
70 >    RealType rand( const RealType& n ) {
71 >      return mtRand_->rand(n);
72 >    }
73  
74 <        /** Returns a real number in [0, 1) */
75 <        double randExc() {
76 <            return mtRand_->randExc();
77 <        }
74 >    /** Returns a real number in [0, 1) */
75 >    RealType randExc() {
76 >      return mtRand_->randExc();
77 >    }
78  
79 <        /** Returns a real number in [0, n) */        
80 <        double randExc( const double& n ) {
81 <            return mtRand_->randExc(n);
82 <        }
79 >    /** Returns a real number in [0, n) */        
80 >    RealType randExc( const RealType& n ) {
81 >      return mtRand_->randExc(n);
82 >    }
83  
84 <        /** Returns a real number in (0, 1) */                
85 <        double randDblExc() {
86 <            return mtRand_->randDblExc();
87 <        }
84 >    /** Returns a real number in (0, 1) */                
85 >    RealType randDblExc() {
86 >      return mtRand_->randDblExc();
87 >    }
88  
89 <        /** Returns a real number in (0, n) */                        
90 <        double randDblExc( const double& n ) {
91 <            return mtRand_->randDblExc(n);
92 <        }
89 >    /** Returns a real number in (0, n) */                        
90 >    RealType randDblExc( const RealType& n ) {
91 >      return mtRand_->randDblExc(n);
92 >    }
93  
94 <        /** Returns aninteger in [0,2^32-1]  */            
95 <        uint32 randInt() {
96 <           return mtRand_->randInt();
97 <        }
94 >    /** Returns aninteger in [0,2^32-1]  */            
95 >    uint32 randInt() {
96 >      return mtRand_->randInt();
97 >    }
98  
99 <        /** Returns aninteger in [0, n]  for n < 2^32 */    
100 <        uint32 randInt( const uint32& n ) {
101 <           return mtRand_->randInt(n);
102 <        }
99 >    /** Returns aninteger in [0, n]  for n < 2^32 */    
100 >    uint32 randInt( const uint32& n ) {
101 >      return mtRand_->randInt(n);
102 >    }
103          
104 <        /** Returns a 53-bitreal number in [0,1) (capacity of IEEE double precision) */
105 <        double rand53() {
106 <            return mtRand_->rand53();
107 <        }
104 >    /** Returns a 53-bitreal number in [0,1) (capacity of IEEE RealType precision) */
105 >    RealType rand53() {
106 >      return mtRand_->rand53();
107 >    }
108          
109 <        /** Access to nonuniform random number distributions */
110 <        double randNorm( const double& mean, const double& variance) {
111 <            return mtRand_->randNorm(mean, variance);
112 <        }
109 >    /** Access to nonuniform random number distributions */
110 >    RealType randNorm( const RealType mean, const RealType variance) {
111 >      return mtRand_->randNorm(mean, variance);
112 >    }
113          
114 <        // Re-seeding functions with same behavior as initializers
115 <        virtual void seed( const uint32 oneSeed ) = 0;
114 >    // Re-seeding functions with same behavior as initializers
115 >    virtual void seed( const uint32 oneSeed ) = 0;
116          
117 <        virtual void seed()= 0;
117 >    virtual void seed()= 0;
118  
119 <    protected:
120 <        
122 <        MTRand* mtRand_;
119 >  protected:
120 >    MTRand* mtRand_;
121  
122  
123 < };
123 >  };
124  
125   }
126  

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