src/parallel/ForceDecomposition.cpp

/*
 * 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]  Vardeman & Gezelter, in progress (2009).                        
 */
#include "parallel/ForceDecomposition.hpp"
#include "math/SquareMatrix3.hpp"
#include "nonbonded/NonBondedInteraction.hpp"
#include "brains/SnapshotManager.hpp"

using namespace std;
namespace OpenMD {

  /**
   * distributeInitialData is essentially a copy of the older fortran 
   * SimulationSetup
   */
  
  void ForceDecomposition::distributeInitialData() {
#ifdef IS_MPI    
    Snapshot* snap = sman_->getCurrentSnapshot();
    int nLocal = snap->getNumberOfAtoms();
    int nGroups = snap->getNumberOfCutoffGroups();

    AtomCommIntI = new Communicator<Row,int>(nLocal);
    AtomCommRealI = new Communicator<Row,RealType>(nLocal);
    AtomCommVectorI = new Communicator<Row,Vector3d>(nLocal);
    AtomCommMatrixI = new Communicator<Row,Mat3x3d>(nLocal);

    AtomCommIntJ = new Communicator<Column,int>(nLocal);
    AtomCommRealJ = new Communicator<Column,RealType>(nLocal);
    AtomCommVectorJ = new Communicator<Column,Vector3d>(nLocal);
    AtomCommMatrixJ = new Communicator<Column,Mat3x3d>(nLocal);

    cgCommIntI = new Communicator<Row,int>(nGroups);
    cgCommVectorI = new Communicator<Row,Vector3d>(nGroups);
    cgCommIntJ = new Communicator<Column,int>(nGroups);
    cgCommVectorJ = new Communicator<Column,Vector3d>(nGroups);

    int nAtomsInRow = AtomCommIntI->getSize();
    int nAtomsInCol = AtomCommIntJ->getSize();
    int nGroupsInRow = cgCommIntI->getSize();
    int nGroupsInCol = cgCommIntJ->getSize();

    vector<vector<RealType> > pot_row(N_INTERACTION_FAMILIES, 
                                      vector<RealType> (nAtomsInRow, 0.0));
    vector<vector<RealType> > pot_col(N_INTERACTION_FAMILIES,
                                      vector<RealType> (nAtomsInCol, 0.0));
    
    vector<RealType> pot_local(N_INTERACTION_FAMILIES, 0.0);

    // gather the information for atomtype IDs (atids):
    AtomCommIntI->gather(info_->getIdentArray(), identsRow);
    AtomCommIntJ->gather(info_->getIdentArray(), identsCol);

    AtomLocalToGlobal = info_->getLocalToGlobalAtomIndex();
    AtomCommIntI->gather(AtomLocalToGlobal, AtomRowToGlobal);
    AtomCommIntJ->gather(AtomLocalToGlobal, AtomColToGlobal);

    cgLocalToGlobal = info_->getLocalToGlobalCutoffGroupIndex();
    cgCommIntI->gather(cgLocalToGlobal, cgRowToGlobal);
    cgCommIntJ->gather(cgLocalToGlobal, cgColToGlobal);

      
    // still need:
    // topoDist
    // exclude
#endif
  }
    

  void ForceDecomposition::distributeData()  {
#ifdef IS_MPI
    Snapshot* snap = sman_->getCurrentSnapshot();
    
    // gather up the atomic positions
    AtomCommVectorI->gather(snap->atomData.position, 
                            snap->atomIData.position);
    AtomCommVectorJ->gather(snap->atomData.position, 
                            snap->atomJData.position);
    
    // gather up the cutoff group positions
    cgCommVectorI->gather(snap->cgData.position, 
                          snap->cgIData.position);
    cgCommVectorJ->gather(snap->cgData.position, 
                          snap->cgJData.position);
    
    // if needed, gather the atomic rotation matrices
    if (snap->atomData.getStorageLayout() & DataStorage::dslAmat) {
      AtomCommMatrixI->gather(snap->atomData.aMat, 
                              snap->atomIData.aMat);
      AtomCommMatrixJ->gather(snap->atomData.aMat, 
                              snap->atomJData.aMat);
    }
    
    // if needed, gather the atomic eletrostatic frames
    if (snap->atomData.getStorageLayout() & DataStorage::dslElectroFrame) {
      AtomCommMatrixI->gather(snap->atomData.electroFrame, 
                              snap->atomIData.electroFrame);
      AtomCommMatrixJ->gather(snap->atomData.electroFrame, 
                              snap->atomJData.electroFrame);
    }
#endif      
  }
  
  void ForceDecomposition::collectIntermediateData() {
#ifdef IS_MPI
    Snapshot* snap = sman_->getCurrentSnapshot();
    
    if (snap->atomData.getStorageLayout() & DataStorage::dslDensity) {

      AtomCommRealI->scatter(snap->atomIData.density, 
                             snap->atomData.density);

      int n = snap->atomData.density.size();
      std::vector<RealType> rho_tmp(n, 0.0);
      AtomCommRealJ->scatter(snap->atomJData.density, rho_tmp);
      for (int i = 0; i < n; i++)
        snap->atomData.density[i] += rho_tmp[i];
    }
#endif
  }
  
  void ForceDecomposition::distributeIntermediateData() {
#ifdef IS_MPI
    Snapshot* snap = sman_->getCurrentSnapshot();
    if (snap->atomData.getStorageLayout() & DataStorage::dslFunctional) {
      AtomCommRealI->gather(snap->atomData.functional, 
                            snap->atomIData.functional);
      AtomCommRealJ->gather(snap->atomData.functional, 
                            snap->atomJData.functional);
    }
    
    if (snap->atomData.getStorageLayout() & DataStorage::dslFunctionalDerivative) {
      AtomCommRealI->gather(snap->atomData.functionalDerivative, 
                            snap->atomIData.functionalDerivative);
      AtomCommRealJ->gather(snap->atomData.functionalDerivative, 
                            snap->atomJData.functionalDerivative);
    }
#endif
  }
  
  
  void ForceDecomposition::collectData() {
#ifdef IS_MPI
    Snapshot* snap = sman_->getCurrentSnapshot();
    
    int n = snap->atomData.force.size();
    vector<Vector3d> frc_tmp(n, V3Zero);
    
    AtomCommVectorI->scatter(snap->atomIData.force, frc_tmp);
    for (int i = 0; i < n; i++) {
      snap->atomData.force[i] += frc_tmp[i];
      frc_tmp[i] = 0.0;
    }
    
    AtomCommVectorJ->scatter(snap->atomJData.force, frc_tmp);
    for (int i = 0; i < n; i++)
      snap->atomData.force[i] += frc_tmp[i];
    
    
    if (snap->atomData.getStorageLayout() & DataStorage::dslTorque) {

      int nt = snap->atomData.force.size();
      vector<Vector3d> trq_tmp(nt, V3Zero);

      AtomCommVectorI->scatter(snap->atomIData.torque, trq_tmp);
      for (int i = 0; i < n; i++) {
        snap->atomData.torque[i] += trq_tmp[i];
        trq_tmp[i] = 0.0;
      }
      
      AtomCommVectorJ->scatter(snap->atomJData.torque, trq_tmp);
      for (int i = 0; i < n; i++)
        snap->atomData.torque[i] += trq_tmp[i];
    }
    
    int nLocal = snap->getNumberOfAtoms();

    vector<vector<RealType> > pot_temp(N_INTERACTION_FAMILIES, 
                                       vector<RealType> (nLocal, 0.0));
    
    for (int i = 0; i < N_INTERACTION_FAMILIES; i++) {
      AtomCommRealI->scatter(pot_row[i], pot_temp[i]);
      for (int ii = 0;  ii < pot_temp[i].size(); ii++ ) {
        pot_local[i] += pot_temp[i][ii];
      }
    }
#endif
  }
  
} //end namespace OpenMD
Revision:	1544
Committed:	Fri Mar 18 19:31:52 2011 UTC (14 years, 1 month ago) by gezelter
File size:	8741 byte(s)
Log Message:	More modifications for paralllel rewrite
#	User	Rev	Content
1	gezelter	1539	/*
2			* Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3	chuckv	1538	*
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] Vardeman & Gezelter, in progress (2009).
40			*/
41	gezelter	1539	#include "parallel/ForceDecomposition.hpp"
42			#include "math/SquareMatrix3.hpp"
43	gezelter	1544	#include "nonbonded/NonBondedInteraction.hpp"
44			#include "brains/SnapshotManager.hpp"
45	chuckv	1538
46	gezelter	1541	using namespace std;
47	gezelter	1539	namespace OpenMD {
48	chuckv	1538
49	gezelter	1544	/**
50			* distributeInitialData is essentially a copy of the older fortran
51			* SimulationSetup
52			*/
53
54	gezelter	1539	void ForceDecomposition::distributeInitialData() {
55	gezelter	1544	#ifdef IS_MPI
56	gezelter	1541	Snapshot* snap = sman_->getCurrentSnapshot();
57	gezelter	1544	int nLocal = snap->getNumberOfAtoms();
58	gezelter	1541	int nGroups = snap->getNumberOfCutoffGroups();
59	chuckv	1538
60	gezelter	1544	AtomCommIntI = new Communicator<Row,int>(nLocal);
61			AtomCommRealI = new Communicator<Row,RealType>(nLocal);
62			AtomCommVectorI = new Communicator<Row,Vector3d>(nLocal);
63			AtomCommMatrixI = new Communicator<Row,Mat3x3d>(nLocal);
64	chuckv	1538
65	gezelter	1544	AtomCommIntJ = new Communicator<Column,int>(nLocal);
66			AtomCommRealJ = new Communicator<Column,RealType>(nLocal);
67			AtomCommVectorJ = new Communicator<Column,Vector3d>(nLocal);
68			AtomCommMatrixJ = new Communicator<Column,Mat3x3d>(nLocal);
69	chuckv	1538
70	gezelter	1544	cgCommIntI = new Communicator<Row,int>(nGroups);
71	gezelter	1540	cgCommVectorI = new Communicator<Row,Vector3d>(nGroups);
72	gezelter	1544	cgCommIntJ = new Communicator<Column,int>(nGroups);
73	gezelter	1540	cgCommVectorJ = new Communicator<Column,Vector3d>(nGroups);
74	gezelter	1541
75	gezelter	1544	int nAtomsInRow = AtomCommIntI->getSize();
76			int nAtomsInCol = AtomCommIntJ->getSize();
77			int nGroupsInRow = cgCommIntI->getSize();
78			int nGroupsInCol = cgCommIntJ->getSize();
79	gezelter	1541
80	gezelter	1544	vector<vector<RealType> > pot_row(N_INTERACTION_FAMILIES,
81			vector<RealType> (nAtomsInRow, 0.0));
82			vector<vector<RealType> > pot_col(N_INTERACTION_FAMILIES,
83			vector<RealType> (nAtomsInCol, 0.0));
84
85			vector<RealType> pot_local(N_INTERACTION_FAMILIES, 0.0);
86	gezelter	1541
87	gezelter	1544	// gather the information for atomtype IDs (atids):
88			AtomCommIntI->gather(info_->getIdentArray(), identsRow);
89			AtomCommIntJ->gather(info_->getIdentArray(), identsCol);
90	gezelter	1541
91	gezelter	1544	AtomLocalToGlobal = info_->getLocalToGlobalAtomIndex();
92			AtomCommIntI->gather(AtomLocalToGlobal, AtomRowToGlobal);
93			AtomCommIntJ->gather(AtomLocalToGlobal, AtomColToGlobal);
94
95			cgLocalToGlobal = info_->getLocalToGlobalCutoffGroupIndex();
96			cgCommIntI->gather(cgLocalToGlobal, cgRowToGlobal);
97			cgCommIntJ->gather(cgLocalToGlobal, cgColToGlobal);
98
99
100
101
102
103
104			// still need:
105			// topoDist
106			// exclude
107	chuckv	1538	#endif
108	gezelter	1539	}
109
110	chuckv	1538
111
112	gezelter	1539	void ForceDecomposition::distributeData() {
113	chuckv	1538	#ifdef IS_MPI
114	gezelter	1539	Snapshot* snap = sman_->getCurrentSnapshot();
115	gezelter	1540
116	gezelter	1539	// gather up the atomic positions
117			AtomCommVectorI->gather(snap->atomData.position,
118			snap->atomIData.position);
119			AtomCommVectorJ->gather(snap->atomData.position,
120	gezelter	1540	snap->atomJData.position);
121	gezelter	1539
122			// gather up the cutoff group positions
123			cgCommVectorI->gather(snap->cgData.position,
124	gezelter	1540	snap->cgIData.position);
125	gezelter	1539	cgCommVectorJ->gather(snap->cgData.position,
126	gezelter	1540	snap->cgJData.position);
127	gezelter	1539
128			// if needed, gather the atomic rotation matrices
129			if (snap->atomData.getStorageLayout() & DataStorage::dslAmat) {
130			AtomCommMatrixI->gather(snap->atomData.aMat,
131	gezelter	1540	snap->atomIData.aMat);
132	gezelter	1539	AtomCommMatrixJ->gather(snap->atomData.aMat,
133	gezelter	1540	snap->atomJData.aMat);
134	gezelter	1539	}
135
136			// if needed, gather the atomic eletrostatic frames
137			if (snap->atomData.getStorageLayout() & DataStorage::dslElectroFrame) {
138			AtomCommMatrixI->gather(snap->atomData.electroFrame,
139	gezelter	1540	snap->atomIData.electroFrame);
140	gezelter	1539	AtomCommMatrixJ->gather(snap->atomData.electroFrame,
141	gezelter	1540	snap->atomJData.electroFrame);
142	gezelter	1539	}
143			#endif
144			}
145
146			void ForceDecomposition::collectIntermediateData() {
147			#ifdef IS_MPI
148			Snapshot* snap = sman_->getCurrentSnapshot();
149
150			if (snap->atomData.getStorageLayout() & DataStorage::dslDensity) {
151	gezelter	1541
152	gezelter	1539	AtomCommRealI->scatter(snap->atomIData.density,
153	gezelter	1540	snap->atomData.density);
154	gezelter	1541
155			int n = snap->atomData.density.size();
156			std::vector<RealType> rho_tmp(n, 0.0);
157	gezelter	1539	AtomCommRealJ->scatter(snap->atomJData.density, rho_tmp);
158			for (int i = 0; i < n; i++)
159			snap->atomData.density[i] += rho_tmp[i];
160			}
161	chuckv	1538	#endif
162	gezelter	1539	}
163
164			void ForceDecomposition::distributeIntermediateData() {
165	chuckv	1538	#ifdef IS_MPI
166	gezelter	1539	Snapshot* snap = sman_->getCurrentSnapshot();
167			if (snap->atomData.getStorageLayout() & DataStorage::dslFunctional) {
168			AtomCommRealI->gather(snap->atomData.functional,
169	gezelter	1540	snap->atomIData.functional);
170	gezelter	1539	AtomCommRealJ->gather(snap->atomData.functional,
171	gezelter	1540	snap->atomJData.functional);
172	gezelter	1539	}
173
174			if (snap->atomData.getStorageLayout() & DataStorage::dslFunctionalDerivative) {
175			AtomCommRealI->gather(snap->atomData.functionalDerivative,
176	gezelter	1540	snap->atomIData.functionalDerivative);
177	gezelter	1539	AtomCommRealJ->gather(snap->atomData.functionalDerivative,
178	gezelter	1540	snap->atomJData.functionalDerivative);
179	gezelter	1539	}
180	chuckv	1538	#endif
181			}
182	gezelter	1539
183
184			void ForceDecomposition::collectData() {
185			#ifdef IS_MPI
186	gezelter	1540	Snapshot* snap = sman_->getCurrentSnapshot();
187
188	gezelter	1541	int n = snap->atomData.force.size();
189	gezelter	1544	vector<Vector3d> frc_tmp(n, V3Zero);
190	gezelter	1541
191	gezelter	1540	AtomCommVectorI->scatter(snap->atomIData.force, frc_tmp);
192	gezelter	1541	for (int i = 0; i < n; i++) {
193	gezelter	1540	snap->atomData.force[i] += frc_tmp[i];
194	gezelter	1541	frc_tmp[i] = 0.0;
195			}
196	gezelter	1540
197			AtomCommVectorJ->scatter(snap->atomJData.force, frc_tmp);
198			for (int i = 0; i < n; i++)
199			snap->atomData.force[i] += frc_tmp[i];
200
201
202			if (snap->atomData.getStorageLayout() & DataStorage::dslTorque) {
203	gezelter	1541
204			int nt = snap->atomData.force.size();
205	gezelter	1544	vector<Vector3d> trq_tmp(nt, V3Zero);
206	gezelter	1541
207	gezelter	1540	AtomCommVectorI->scatter(snap->atomIData.torque, trq_tmp);
208	gezelter	1541	for (int i = 0; i < n; i++) {
209	gezelter	1540	snap->atomData.torque[i] += trq_tmp[i];
210	gezelter	1541	trq_tmp[i] = 0.0;
211			}
212	gezelter	1540
213			AtomCommVectorJ->scatter(snap->atomJData.torque, trq_tmp);
214			for (int i = 0; i < n; i++)
215			snap->atomData.torque[i] += trq_tmp[i];
216			}
217
218	gezelter	1544	int nLocal = snap->getNumberOfAtoms();
219
220			vector<vector<RealType> > pot_temp(N_INTERACTION_FAMILIES,
221			vector<RealType> (nLocal, 0.0));
222	gezelter	1540
223	gezelter	1544	for (int i = 0; i < N_INTERACTION_FAMILIES; i++) {
224	gezelter	1541	AtomCommRealI->scatter(pot_row[i], pot_temp[i]);
225			for (int ii = 0; ii < pot_temp[i].size(); ii++ ) {
226			pot_local[i] += pot_temp[i][ii];
227			}
228			}
229	gezelter	1539	#endif
230	chuckv	1538	}
231
232	gezelter	1539	} //end namespace OpenMD