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. Acknowledgement of the program authors must be made in any
 *    publication of scientific results based in part on use of the
 *    program.  An acceptable form of acknowledgement is citation of
 *    the article in which the program was described (Matthew
 *    A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
 *    J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
 *    Parallel Simulation Engine for Molecular Dynamics,"
 *    J. Comput. Chem. 26, pp. 252-271 (2005))
 *
 * 2. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 3. 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.
 */
 
/**
 * @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>

namespace oopse {
  /**
   * @class DataStorage
   * @warning do not try to insert element into (or ease element from) private member data 
   * of DataStorage directly.
   * @todo DataStorage may need refactorying. Every std::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,
      dslZAngle = 32,
      dslForce = 64, 
      dslTorque = 128
    };


    DataStorage();
    DataStorage(int size, int storageLayout = 255);
    /** 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 std::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 call std::copy for every std::vector in DataStorage class. 
     * One Precondition of std::copy is that target is not within the range [soruce, soruce + num]
     * @param souce 
     * @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);

    std::vector<Vector3d> position;               /** position array */
    std::vector<Vector3d> velocity;               /** velocity array */
    std::vector<RotMat3x3d> aMat;            /** rotation matrix array */
    std::vector<Vector3d> angularMomentum;/** angular momentum array (body-fixed) */
    std::vector<Mat3x3d> electroFrame;                /** the lab frame unit std::vector array*/
    std::vector<RealType> zAngle;              /** z -angle array */        
    std::vector<Vector3d> force;               /** force array */
    std::vector<Vector3d> torque;               /** torque array */

    static int getBytesPerStuntDouble(int layout);

  private:

    RealType* internalGetArrayPointer(std::vector<Vector3d>& v);
            
    RealType* internalGetArrayPointer(std::vector<RotMat3x3d>& v);
    RealType* internalGetArrayPointer(std::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:	963
Committed:	Wed May 17 21:51:42 2006 UTC (19 years, 5 months ago) by tim
File size:	5233 byte(s)
Log Message:	Adding single precision capabilities to c++ side
#	User	Rev	Content
1	gezelter	507	/*
2	gezelter	246	* Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3	tim	155	*
4	gezelter	246	* 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	tim	155	*/
41	gezelter	246
42	tim	155	/**
43			* @file Vector.hpp
44			* @author Teng Lin
45			* @date 09/14/2004
46			* @version 1.0
47			*/
48
49			#ifndef BRAINS_DATASTORAGE_HPP
50			#define BRAINS_DATASTORAGE_HPP
51
52			#include <vector>
53			#include <math/Vector3.hpp>
54			#include <math/SquareMatrix3.hpp>
55
56	tim	323	namespace oopse {
57	gezelter	507	/**
58			* @class DataStorage
59			* @warning do not try to insert element into (or ease element from) private member data
60			* of DataStorage directly.
61			* @todo DataStorage may need refactorying. Every std::vector can inherit from the same base class
62			* which will make it easy to maintain
63			*/
64			class DataStorage {
65			public:
66	tim	155
67	gezelter	507	enum{
68			dslPosition = 1,
69			dslVelocity = 2,
70			dslAmat = 4,
71			dslAngularMomentum = 8,
72			dslElectroFrame = 16,
73			dslZAngle = 32,
74			dslForce = 64,
75			dslTorque = 128
76			};
77	tim	155
78
79	gezelter	507	DataStorage();
80			DataStorage(int size, int storageLayout = 255);
81			/** return the size of this DataStorage. */
82			int getSize();
83			/**
84			* Changes the size of this DataStorage.
85			* @param size new size of this DataStorage
86			*/
87			void resize(int newSize);
88			/**
89			* Reallocates memory manually. The main reason for using reserve() is efficiency
90			* if you know the capacity to which your std::vector must eventually grow, then it is usually more
91			* efficient to allocate that memory all at once.
92			*/
93			void reserve(int size);
94			/**
95			* Copies data inside DataStorage class.
96			* Copy function actually call std::copy for every std::vector in DataStorage class.
97			* One Precondition of std::copy is that target is not within the range [soruce, soruce + num]
98			* @param souce
99			* @param num number of element to be moved
100			* @param target
101			*/
102			void copy(int source, int num, int target);
103			/** Returns the storage layout */
104			int getStorageLayout();
105			/** Sets the storage layout */
106			void setStorageLayout(int layout);
107			/** Returns the pointer of internal array */
108	tim	963	RealType *getArrayPointer(int whichArray);
109	gezelter	246
110	gezelter	507	std::vector<Vector3d> position; /** position array */
111			std::vector<Vector3d> velocity; /** velocity array */
112			std::vector<RotMat3x3d> aMat; /** rotation matrix array */
113			std::vector<Vector3d> angularMomentum;/** angular momentum array (body-fixed) */
114			std::vector<Mat3x3d> electroFrame; /** the lab frame unit std::vector array*/
115	tim	963	std::vector<RealType> zAngle; /** z -angle array */
116	gezelter	507	std::vector<Vector3d> force; /** force array */
117			std::vector<Vector3d> torque; /** torque array */
118	gezelter	246
119	gezelter	507	static int getBytesPerStuntDouble(int layout);
120	tim	323
121	gezelter	507	private:
122	tim	155
123	tim	963	RealType* internalGetArrayPointer(std::vector<Vector3d>& v);
124	tim	155
125	tim	963	RealType* internalGetArrayPointer(std::vector<RotMat3x3d>& v);
126			RealType* internalGetArrayPointer(std::vector<RealType>& v);
127	tim	155
128	gezelter	507	template<typename T>
129			void internalResize(std::vector<T>& v, int newSize);
130	tim	155
131	gezelter	507	template<typename T>
132			void internalCopy(std::vector<T>& v, int source, int num, int target);
133	tim	155
134	gezelter	507	int size_;
135			int storageLayout_;
136	gezelter	246
137	gezelter	507	};
138	tim	155
139	tim	323	}
140	tim	155	#endif //BRAINS_DATASTORAGE_HPP