src/brains/DataStorage.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, 24107 (2008).          
 * [4]  Kuang & Gezelter,  J. Chem. Phys. 133, 164101 (2010).
 * [5]  Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
 */
 
/**
 * @file Vector.hpp
 * @author Teng Lin
 * @date 09/14/2004
 * @version 1.0
 */

#ifndef BRAINS_DATASTORAGE_HPP
#define BRAINS_DATASTORAGE_HPP

#include <vector>
#include <math/Vector3.hpp>
#include <math/SquareMatrix3.hpp>

using namespace std;
namespace OpenMD {
  /**
   * @class DataStorage
   * @warning do not try to insert element into (or ease element from) private member data 
   * of DataStorage directly.
   * @todo DataStorage may need refactoring. Every vector can inherit from the same base class
   * which will make it easy to maintain
   */
  class DataStorage {
  public:

    enum{
      dslPosition = 1,
      dslVelocity = 2,
      dslAmat = 4, 
      dslAngularMomentum = 8,
      dslElectroFrame = 16,
      dslForce = 32, 
      dslTorque = 64,
      dslParticlePot = 128,
      dslDensity = 256,
      dslFunctional = 512,
      dslFunctionalDerivative = 1024,
      dslElectricField = 2048,
      dslSkippedCharge = 4096,
      dslFlucQPosition = 8192,
      dslFlucQVelocity = 16384,
      dslFlucQForce = 32768
    };

    DataStorage();
    DataStorage(int size, int storageLayout = 0);
    /** return the size of this DataStorage. */
    int getSize();
    /**
     * Changes the size of this DataStorage.
     * @param size new size of this DataStorage
     */
    void resize(int newSize);
    /**
     * Reallocates memory manually. 
     *
     * The main reason for using reserve() is efficiency if you know
     * the capacity to which your vector must eventually grow,
     * then it is usually more efficient to allocate that memory all
     * at once.
     */
    void reserve(int size);
    /**
     * Copies data inside DataStorage class.
     *
     * Copy function actually calls copy for every vector in
     * DataStorage class.  One Precondition of copy is that
     * target is not within the range [source, soruce + num]
     *
     * @param source 
     * @param num number of element to be moved
     * @param target
     */
    void copy(int source, int num, int target);
    /** Returns the storage layout  */
    int getStorageLayout();
    /** Sets the storage layout  */
    void setStorageLayout(int layout);
    /** Returns the pointer of internal array */
    RealType *getArrayPointer(int whichArray);

    vector<Vector3d> position;        /** position array */
    vector<Vector3d> velocity;        /** velocity array */
    vector<RotMat3x3d> aMat;          /** rotation matrix array */
    vector<Vector3d> angularMomentum; /** angular momentum array (body-fixed) */
    vector<Mat3x3d> electroFrame;     /** the lab frame unit vector array*/
    vector<Vector3d> force;           /** force array */
    vector<Vector3d> torque;          /** torque array */
    vector<RealType> particlePot;     /** particle potential arrray */
    vector<RealType> density;         /** electron density */
    vector<RealType> functional;      /** density functional */
    vector<RealType> functionalDerivative; /** derivative of functional */
    vector<Vector3d> electricField;   /** local electric field */
    vector<RealType> skippedCharge;   /** charge skipped during normal pairwise calculation */
    vector<RealType> flucQPos;        /** fluctuating charges */
    vector<RealType> flucQVel;        /** fluctuating charge velocities */
    vector<RealType> flucQFrc;        /** fluctuating charge forces */

    static int getBytesPerStuntDouble(int layout);

  private:

    RealType* internalGetArrayPointer(vector<Vector3d>& v);            
    RealType* internalGetArrayPointer(vector<RotMat3x3d>& v);
    RealType* internalGetArrayPointer(vector<RealType>& v);

            
    template<typename T>
    void internalResize(std::vector<T>& v, int newSize);

    template<typename T>
    void internalCopy(std::vector<T>& v, int source,  int num, int target);
            
    int size_;
    int storageLayout_;

  };

}
#endif //BRAINS_DATASTORAGE_HPP
Revision:	1782
Committed:	Wed Aug 22 02:28:28 2012 UTC (13 years, 2 months ago) by gezelter
File size:	6103 byte(s)
Log Message:	MERGE OpenMD development branch 1465:1781 into trunk
#	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. 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] Kuang & Gezelter, J. Chem. Phys. 133, 164101 (2010).
40	* [5] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
41	*/
42
43	/**
44	* @file Vector.hpp
45	* @author Teng Lin
46	* @date 09/14/2004
47	* @version 1.0
48	*/
49
50	#ifndef BRAINS_DATASTORAGE_HPP
51	#define BRAINS_DATASTORAGE_HPP
52
53	#include <vector>
54	#include <math/Vector3.hpp>
55	#include <math/SquareMatrix3.hpp>
56
57	using namespace std;
58	namespace OpenMD {
59	/**
60	* @class DataStorage
61	* @warning do not try to insert element into (or ease element from) private member data
62	* of DataStorage directly.
63	* @todo DataStorage may need refactoring. Every vector can inherit from the same base class
64	* which will make it easy to maintain
65	*/
66	class DataStorage {
67	public:
68
69	enum{
70	dslPosition = 1,
71	dslVelocity = 2,
72	dslAmat = 4,
73	dslAngularMomentum = 8,
74	dslElectroFrame = 16,
75	dslForce = 32,
76	dslTorque = 64,
77	dslParticlePot = 128,
78	dslDensity = 256,
79	dslFunctional = 512,
80	dslFunctionalDerivative = 1024,
81	dslElectricField = 2048,
82	dslSkippedCharge = 4096,
83	dslFlucQPosition = 8192,
84	dslFlucQVelocity = 16384,
85	dslFlucQForce = 32768
86	};
87
88	DataStorage();
89	DataStorage(int size, int storageLayout = 0);
90	/** return the size of this DataStorage. */
91	int getSize();
92	/**
93	* Changes the size of this DataStorage.
94	* @param size new size of this DataStorage
95	*/
96	void resize(int newSize);
97	/**
98	* Reallocates memory manually.
99	*
100	* The main reason for using reserve() is efficiency if you know
101	* the capacity to which your vector must eventually grow,
102	* then it is usually more efficient to allocate that memory all
103	* at once.
104	*/
105	void reserve(int size);
106	/**
107	* Copies data inside DataStorage class.
108	*
109	* Copy function actually calls copy for every vector in
110	* DataStorage class. One Precondition of copy is that
111	* target is not within the range [source, soruce + num]
112	*
113	* @param source
114	* @param num number of element to be moved
115	* @param target
116	*/
117	void copy(int source, int num, int target);
118	/** Returns the storage layout */
119	int getStorageLayout();
120	/** Sets the storage layout */
121	void setStorageLayout(int layout);
122	/** Returns the pointer of internal array */
123	RealType *getArrayPointer(int whichArray);
124
125	vector<Vector3d> position; /** position array */
126	vector<Vector3d> velocity; /** velocity array */
127	vector<RotMat3x3d> aMat; /** rotation matrix array */
128	vector<Vector3d> angularMomentum; /** angular momentum array (body-fixed) */
129	vector<Mat3x3d> electroFrame; /** the lab frame unit vector array*/
130	vector<Vector3d> force; /** force array */
131	vector<Vector3d> torque; /** torque array */
132	vector<RealType> particlePot; /** particle potential arrray */
133	vector<RealType> density; /** electron density */
134	vector<RealType> functional; /** density functional */
135	vector<RealType> functionalDerivative; /** derivative of functional */
136	vector<Vector3d> electricField; /** local electric field */
137	vector<RealType> skippedCharge; /** charge skipped during normal pairwise calculation */
138	vector<RealType> flucQPos; /** fluctuating charges */
139	vector<RealType> flucQVel; /** fluctuating charge velocities */
140	vector<RealType> flucQFrc; /** fluctuating charge forces */
141
142	static int getBytesPerStuntDouble(int layout);
143
144	private:
145
146	RealType* internalGetArrayPointer(vector<Vector3d>& v);
147	RealType* internalGetArrayPointer(vector<RotMat3x3d>& v);
148	RealType* internalGetArrayPointer(vector<RealType>& v);
149
150
151	template<typename T>
152	void internalResize(std::vector<T>& v, int newSize);
153
154	template<typename T>
155	void internalCopy(std::vector<T>& v, int source, int num, int target);
156
157	int size_;
158	int storageLayout_;
159
160	};
161
162	}
163	#endif //BRAINS_DATASTORAGE_HPP