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root/group/trunk/OOPSE-4/src/io/ZConsWriter.cpp
Revision: 3388
Committed: Fri Apr 25 15:14:47 2008 UTC (17 years ago) by gezelter
File size: 5757 byte(s)
Log Message:
A bunch of minor changes to make MPI compilation faster than
the double compilation we do now...

File Contents

# 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. 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 */
41
42 #include <algorithm>
43 #include <iostream>
44 #include <vector>
45
46
47 #include "io/ZConsWriter.hpp"
48 #include "utils/simError.h"
49 #ifdef IS_MPI
50 #include <mpi.h>
51 #endif
52
53 namespace oopse {
54 ZConsWriter::ZConsWriter(SimInfo* info, const std::string& filename) : info_(info) {
55 //use master - slave mode, only master node writes to disk
56 #ifdef IS_MPI
57 if(worldRank == 0){
58 #endif
59
60 output_.open(filename.c_str());
61
62 if(!output_){
63 sprintf( painCave.errMsg,
64 "Could not open %s for z constrain output_ \n", filename.c_str());
65 painCave.isFatal = 1;
66 simError();
67 }
68
69 output_ << "//time(fs)" << std::endl;
70 output_ << "//number of fixed z-constrain molecules" << std::endl;
71 output_ << "//global Index of molecule\tzconstrain force\tcurrentZPos" << std::endl;
72
73 #ifdef IS_MPI
74 }
75 #endif
76
77 }
78
79 ZConsWriter::~ZConsWriter()
80 {
81
82 #ifdef IS_MPI
83 if(worldRank == 0 ){
84 #endif
85 output_.close();
86 #ifdef IS_MPI
87 }
88 #endif
89 }
90
91 void ZConsWriter::writeFZ(const std::list<ZconstraintMol>& fixedZmols){
92 #ifndef IS_MPI
93 output_ << info_->getSnapshotManager()->getCurrentSnapshot()->getTime() << std::endl;
94 output_ << fixedZmols.size() << std::endl;
95
96 std::list<ZconstraintMol>::const_iterator i;
97 for ( i = fixedZmols.begin(); i != fixedZmols.end(); ++i) {
98 output_ << i->mol->getGlobalIndex() <<"\t" << i->fz << "\t" << i->zpos << "\t" << i->param.zTargetPos <<std::endl;
99 }
100 #else
101 int nproc;
102 MPI_Comm_size(MPI_COMM_WORLD, &nproc);
103 const int masterNode = 0;
104 int myNode = worldRank;
105 std::vector<int> tmpNFixedZmols(nproc, 0);
106 std::vector<int> nFixedZmolsInProc(nproc, 0);
107 tmpNFixedZmols[myNode] = fixedZmols.size();
108
109 //do MPI_ALLREDUCE to exchange the total number of atoms, rigidbodies and cutoff groups
110 MPI_Allreduce(&tmpNFixedZmols[0], &nFixedZmolsInProc[0], nproc, MPI_INT,
111 MPI_SUM, MPI_COMM_WORLD);
112
113 MPI_Status ierr;
114 int zmolIndex;
115 RealType data[3];
116
117 if (masterNode == 0) {
118
119 std::vector<ZconsData> zconsData;
120 ZconsData tmpData;
121 for(int i =0 ; i < nproc; ++i) {
122 if (i == masterNode) {
123 std::list<ZconstraintMol>::const_iterator j;
124 for ( j = fixedZmols.begin(); j != fixedZmols.end(); ++j) {
125 tmpData.zmolIndex = j->mol->getGlobalIndex() ;
126 tmpData.zforce= j->fz;
127 tmpData.zpos = j->zpos;
128 tmpData.zconsPos = j->param.zTargetPos;
129 zconsData.push_back(tmpData);
130 }
131
132 } else {
133 for(int k =0 ; k < nFixedZmolsInProc[i]; ++k) {
134 MPI_Recv(&zmolIndex, 1, MPI_INT, i, 0, MPI_COMM_WORLD,&ierr);
135 MPI_Recv(data, 3, MPI_REALTYPE, i, 0, MPI_COMM_WORLD,&ierr);
136 tmpData.zmolIndex = zmolIndex;
137 tmpData.zforce= data[0];
138 tmpData.zpos = data[1];
139 tmpData.zconsPos = data[2];
140 zconsData.push_back(tmpData);
141 }
142 }
143
144 }
145
146
147 output_ << info_->getSnapshotManager()->getCurrentSnapshot()->getTime() << std::endl;
148 output_ << zconsData.size() << std::endl;
149
150 std::vector<ZconsData>::iterator l;
151 for (l = zconsData.begin(); l != zconsData.end(); ++l) {
152 output_ << l->zmolIndex << "\t" << l->zforce << "\t" << l->zpos << "\t" << l->zconsPos << std::endl;
153 }
154
155 } else {
156
157 std::list<ZconstraintMol>::const_iterator j;
158 for (j = fixedZmols.begin(); j != fixedZmols.end(); ++j) {
159 zmolIndex = j->mol->getGlobalIndex();
160 data[0] = j->fz;
161 data[1] = j->zpos;
162 data[2] = j->param.zTargetPos;
163 MPI_Send(&zmolIndex, 1, MPI_INT, masterNode, 0, MPI_COMM_WORLD);
164 MPI_Send(data, 3, MPI_REALTYPE, masterNode, 0, MPI_COMM_WORLD);
165
166 }
167 }
168 #endif
169 }
170
171 }