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root/OpenMD/trunk/src/io/RestWriter.cpp
Revision: 1030
Committed: Fri Sep 1 14:15:05 2006 UTC (18 years, 8 months ago) by chrisfen
File size: 7037 byte(s)
Log Message:
fixed TI MPI bug

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 "io/RestWriter.hpp"
43 #include "primitives/Molecule.hpp"
44 #include "utils/simError.h"
45 #include "io/basic_teebuf.hpp"
46
47 #ifdef IS_MPI
48 #include <mpi.h>
49 #define TAKE_THIS_TAG_INT 1
50 #define TAKE_THIS_TAG_REAL 2
51 #endif //is_mpi
52
53 namespace oopse {
54 RestWriter::RestWriter(SimInfo* info) :
55 info_(info), outName_(info_->getRestFileName()) {
56 }
57
58 RestWriter::~RestWriter() {}
59
60 void RestWriter::writeZAngFile() {
61 std::ostream* zangStream;
62
63 #ifdef IS_MPI
64 if (worldRank == 0) {
65 #endif // is_mpi
66
67 zangStream = new std::ofstream(outName_.c_str());
68
69 #ifdef IS_MPI
70 }
71 #endif // is_mpi
72
73 writeZangle(*zangStream);
74
75 #ifdef IS_MPI
76 if (worldRank == 0) {
77 #endif // is_mpi
78 delete zangStream;
79
80 #ifdef IS_MPI
81 }
82 #endif // is_mpi
83
84 }
85
86 void RestWriter::writeZangle(std::ostream& finalOut){
87 const int BUFFERSIZE = 2000;
88 char tempBuffer[BUFFERSIZE];
89 char writeLine[BUFFERSIZE];
90
91 Molecule* mol;
92 StuntDouble* integrableObject;
93 SimInfo::MoleculeIterator mi;
94 Molecule::IntegrableObjectIterator ii;
95
96 #ifndef IS_MPI
97 // first we do output for the single processor version
98 finalOut
99 << info_->getSnapshotManager()->getCurrentSnapshot()->getTime()
100 << " : omega values at this time\n";
101
102 for (mol = info_->beginMolecule(mi); mol != NULL;
103 mol = info_->nextMolecule(mi)) {
104
105 for (integrableObject = mol->beginIntegrableObject(ii);
106 integrableObject != NULL;
107 integrableObject = mol->nextIntegrableObject(ii)) {
108
109 sprintf( tempBuffer,
110 "%14.10lf\n",
111 integrableObject->getZangle());
112 strcpy( writeLine, tempBuffer );
113
114 finalOut << writeLine;
115
116 }
117 }
118
119 #else
120 int nproc;
121 MPI_Comm_size(MPI_COMM_WORLD, &nproc);
122 const int masterNode = 0;
123
124 MPI_Status ierr;
125 int intObIndex;
126 int vecLength;
127 RealType zAngle;
128 std::vector<int> gIndex;
129 std::vector<RealType> zValues;
130
131 if (worldRank == masterNode) {
132 std::map<int, RealType> zAngData;
133 for(int i = 0 ; i < nproc; ++i) {
134 if (i == masterNode) {
135 for (mol = info_->beginMolecule(mi); mol != NULL;
136 mol = info_->nextMolecule(mi)) {
137
138 for (integrableObject = mol->beginIntegrableObject(ii);
139 integrableObject != NULL;
140 integrableObject = mol->nextIntegrableObject(ii)) {
141
142 intObIndex = integrableObject->getGlobalIntegrableObjectIndex();
143
144 zAngle = integrableObject->getZangle();
145 zAngData.insert(std::pair<int, RealType>(intObIndex, zAngle));
146 }
147 }
148 } else {
149 MPI_Recv(&vecLength, 1, MPI_INT, i,
150 TAKE_THIS_TAG_INT, MPI_COMM_WORLD, &ierr);
151 // make sure the vectors are the right size for the incoming data
152 gIndex.resize(vecLength);
153 zValues.resize(vecLength);
154
155 MPI_Recv(&gIndex[0], vecLength, MPI_INT, i,
156 TAKE_THIS_TAG_INT, MPI_COMM_WORLD, &ierr);
157 MPI_Recv(&zValues[0], vecLength, MPI_REALTYPE, i,
158 TAKE_THIS_TAG_REAL, MPI_COMM_WORLD, &ierr);
159
160 for (int k = 0; k < vecLength; k++){
161 zAngData.insert(std::pair<int, RealType>(gIndex[k], zValues[k]));
162 }
163 gIndex.clear();
164 zValues.clear();
165 }
166 }
167
168 finalOut << info_->getSnapshotManager()->getCurrentSnapshot()->getTime()
169 << " : omega values at this time\n";
170
171 std::map<int, RealType>::iterator l;
172 for (l = zAngData.begin(); l != zAngData.end(); ++l) {
173
174 sprintf( tempBuffer,
175 "%14.10lf\n",
176 l->second);
177 strcpy( writeLine, tempBuffer );
178
179 finalOut << writeLine;
180 }
181
182 } else {
183 // pack up and send the appropriate info to the master node
184 for(int j = 1; j < nproc; ++j) {
185 if (worldRank == j) {
186 for (mol = info_->beginMolecule(mi); mol != NULL;
187 mol = info_->nextMolecule(mi)) {
188
189 for (integrableObject = mol->beginIntegrableObject(ii);
190 integrableObject != NULL;
191 integrableObject = mol->nextIntegrableObject(ii)) {
192
193 // build a vector of the indicies
194 intObIndex = integrableObject->getGlobalIntegrableObjectIndex();
195 gIndex.push_back(intObIndex);
196
197 // build a vector of the zAngle values
198 zAngle = integrableObject->getZangle();
199 zValues.push_back(zAngle);
200
201 }
202 }
203
204 // let's send these vectors to the master node so that it
205 // can sort them and write to the disk
206 vecLength = gIndex.size();
207
208 MPI_Send(&vecLength, 1, MPI_INT, masterNode,
209 TAKE_THIS_TAG_INT, MPI_COMM_WORLD);
210 MPI_Send(&gIndex[0], vecLength, MPI_INT, masterNode,
211 TAKE_THIS_TAG_INT, MPI_COMM_WORLD);
212 MPI_Send(&zValues[0], vecLength, MPI_REALTYPE, masterNode,
213 TAKE_THIS_TAG_REAL, MPI_COMM_WORLD);
214
215 }
216 }
217 }
218
219 #endif
220 }
221
222 }