src/math/ParallelRandNumGen.hpp

/*
 * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
 *
 * The University of Notre Dame grants you ("Licensee") a
 * non-exclusive, royalty free, license to use, modify and
 * redistribute this software in source and binary code form, provided
 * that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the
 *    distribution.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. All express or implied conditions, representations and
 * warranties, including any implied warranty of merchantability,
 * fitness for a particular purpose or non-infringement, are hereby
 * excluded.  The University of Notre Dame and its licensors shall not
 * be liable for any damages suffered by licensee as a result of
 * using, modifying or distributing the software or its
 * derivatives. In no event will the University of Notre Dame or its
 * licensors be liable for any lost revenue, profit or data, or for
 * direct, indirect, special, consequential, incidental or punitive
 * damages, however caused and regardless of the theory of liability,
 * arising out of the use of or inability to use software, even if the
 * University of Notre Dame has been advised of the possibility of
 * such damages.
 *
 * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your
 * research, please cite the appropriate papers when you publish your
 * work.  Good starting points are:
 *                                                                      
 * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).             
 * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).          
 * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).          
 * [4]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010).
 * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
 */

#ifndef MATH_PARALLELRANDNUMGEN_HPP
#define MATH_PARALLELRANDNUMGEN_HPP

#include <vector>

#include "utils/simError.h"
#include "math/RandNumGen.hpp"

namespace OpenMD {
  
  /**
   * @class ParallelRandNumGen 
   * @brief a parallel random number generator
   * @note use SeqRandNumGen if you want a non-parallel random number
   * generator.
   */
  class ParallelRandNumGen : public RandNumGen{
  public:
    typedef unsigned long uint32; 
    
    ParallelRandNumGen( const uint32& oneSeed);
    
    ParallelRandNumGen();
    
    virtual void seed( const uint32 oneSeed );
    
    virtual void seed();
    
  private:
    
    ParallelRandNumGen(const ParallelRandNumGen&);
    ParallelRandNumGen& operator =(const ParallelRandNumGen&);
    
    static int nCreatedRNG_; /**< number of random number 
                                generators created */
    int myRank_;
  };
  
}
#endif 
Revision:	1879
Committed:	Sun Jun 16 15:15:42 2013 UTC (12 years, 4 months ago) by gezelter
File size:	3081 byte(s)
Log Message:	MERGE OpenMD development 1783:1878 into trunk
#	User	Rev	Content
1	gezelter	507	/*
2	tim	388	* 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	gezelter	1390	* 1. Redistributions of source code must retain the above copyright
10	tim	388	* notice, this list of conditions and the following disclaimer.
11			*
12	gezelter	1390	* 2. Redistributions in binary form must reproduce the above copyright
13	tim	388	* 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	gezelter	1879	* [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).
39	gezelter	1782	* [4] Kuang & Gezelter, J. Chem. Phys. 133, 164101 (2010).
40			* [5] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
41	tim	388	*/
42
43			#ifndef MATH_PARALLELRANDNUMGEN_HPP
44			#define MATH_PARALLELRANDNUMGEN_HPP
45
46			#include <vector>
47	tim	392
48	tim	388	#include "utils/simError.h"
49	tim	392	#include "math/RandNumGen.hpp"
50	tim	388
51	gezelter	1390	namespace OpenMD {
52	gezelter	1241
53	gezelter	507	/**
54	gezelter	1879	* @class ParallelRandNumGen
55			* @brief a parallel random number generator
56	gezelter	1241	* @note use SeqRandNumGen if you want a non-parallel random number
57			* generator.
58	gezelter	507	*/
59			class ParallelRandNumGen : public RandNumGen{
60			public:
61			typedef unsigned long uint32;
62	gezelter	1241
63	gezelter	507	ParallelRandNumGen( const uint32& oneSeed);
64	gezelter	1241
65	gezelter	507	ParallelRandNumGen();
66	gezelter	1241
67	gezelter	507	virtual void seed( const uint32 oneSeed );
68	gezelter	1241
69	gezelter	507	virtual void seed();
70	gezelter	1241
71	gezelter	507	private:
72	gezelter	1241
73	gezelter	507	ParallelRandNumGen(const ParallelRandNumGen&);
74			ParallelRandNumGen& operator =(const ParallelRandNumGen&);
75	gezelter	1241
76			static int nCreatedRNG_; /**< number of random number
77			generators created */
78			int myRank_;
79	gezelter	507	};
80	gezelter	1241
81	tim	388	}
82			#endif