1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
|
// -------------------------------------------------------------------
// MAdLib - Copyright (C) 2008-2009 Universite catholique de Louvain
//
// See the Copyright.txt and License.txt files for license information.
// You should have received a copy of these files along with MAdLib.
// If not, see <http://www.madlib.be/license/>
//
// Please report all bugs and problems to <contrib@madlib.be>
//
// Authors: Gaetan Compere, Jean-Francois Remacle
// -------------------------------------------------------------------
#include "MAdLib.h"
#include <unistd.h>
#include <iostream>
using std::cout;
#include <sys/time.h>
#include <sys/resource.h>
#include <string>
using std::string;
#include <stdlib.h>
#include <fstream>
using namespace MAd;
#ifdef PARALLEL
#include "mpi.h"
#endif
// ----------------------------------------------------------------------
#ifdef PARALLEL
class EmptyExchanger : public MDB_DataExchanger
{
public:
EmptyExchanger(int _tag): MDB_DataExchanger(_tag) {}
~EmptyExchanger() {}
void * sendData (pEntity pe, // in
int iProcDest, // in
int &_size ) {
_size = 0;
return NULL;
}
void receiveData (pEntity pe, //in
int iProcSender, //in
void *buf ) {}
void deleteExternalData( pEntity pe) const {}
};
#endif
// ----------------------------------------------------------------------
double CPUTime() {
#ifdef PARALLEL
return MPI_Wtime();
#else
struct timeval tp;
struct timezone tz;
gettimeofday(&tp,&tz);
return ((double) tp.tv_sec +
(double) ((double) .000001 * (double) tp.tv_usec));
#endif
}
// ----------------------------------------------------------------------
#if defined(__linux) || defined(linux)
void process_mem_usage(double& vm_usage, double& resident_set)
{
using std::ios_base;
using std::ifstream;
using std::string;
vm_usage = 0.0;
resident_set = 0.0;
// 'file' stat seems to give the most reliable results
//
ifstream stat_stream("/proc/self/stat",ios_base::in);
// dummy vars for leading entries in stat that we don't care about
//
string pid, comm, state, ppid, pgrp, session, tty_nr;
string tpgid, flags, minflt, cminflt, majflt, cmajflt;
string utime, stime, cutime, cstime, priority, nice;
string O, itrealvalue, starttime;
// the two fields we want
//
unsigned long vsize;
long rss;
stat_stream >> pid >> comm >> state >> ppid >> pgrp >> session >> tty_nr
>> tpgid >> flags >> minflt >> cminflt >> majflt >> cmajflt
>> utime >> stime >> cutime >> cstime >> priority >> nice
>> O >> itrealvalue >> starttime >> vsize >> rss; // don't care about the rest
long page_size_kb = sysconf(_SC_PAGE_SIZE) / 1024; // in case x86-64 is configured to use 2MB pages
vm_usage = vsize / 1024.0 / 1024;
resident_set = rss * page_size_kb / 1024;
}
#endif
// ----------------------------------------------------------------------
void displayMemoryUsage(string step="")
{
double ram, virt;
#if defined(__linux) || defined(linux)
process_mem_usage(virt,ram);
#ifdef PARALLEL
double send[2] = {virt,ram};
double recv[2];
MPI_Allreduce(send,recv,2,MPI_DOUBLE,MPI_SUM,MPI_COMM_WORLD);
virt = recv[0];
ram = recv[1];
#endif
std::cout << "Memory usage at step \'"<<step<<"\': "
<< ram << " Mb (resident), "
<< virt << " Mb (virtual)\n";
#endif
}
// ----------------------------------------------------------------------
int main(int argc, char* argv[]) {
MAdLibInitialize(&argc, &argv);
displayMemoryUsage("initialized");
// Check input
// ------------
if ( argc != 3 && argc != 2 ) {
printf("Error: usage: \'executable mshFile [geoFile]\'\n");
exit(0);
}
string meshFile = argv[1];
// Build tools
// ------------
printf ("Analyzing mesh %s...\n\n",meshFile.c_str());
// --- Reading model ---
pGModel model = 0;
GM_create(&model,"theModel");
if ( argc == 3 ) {
string geoFile = argv[2];
GM_readFromGEO(model, geoFile.c_str());
}
else {
GM_readFromMSH(model, meshFile.c_str());
}
displayMemoryUsage("built model");
pMesh mesh = M_new(model);
M_load(mesh,meshFile.c_str());
displayMemoryUsage("built mesh");
SizeFieldBase * sizeField = new AnalyticalSField("1.");
MeshAdapter* ma = new MeshAdapter(mesh,sizeField);
displayMemoryUsage("built adapter");
// temporary info
// int nbVolEdges = 0;
// int dim = M_dim(mesh);
// int numR[20];
// for (int i=0; i<20; i++) numR[i]=0;
// EIter ei = M_edgeIter(mesh);
// while ( pEdge edge = EIter_next(ei) ) {
// if ( E_whatInType(edge) == dim ) {
// int num = E_numRegions(edge);
// numR[num] = numR[num]++;
// nbVolEdges++;
// }
// }
// EIter_delete(ei);
// printf("Num points in edges crown:\n");
// printf("Edges: %d\n",nbVolEdges);
// for (int i=0; i<20; i++) {
// double ratio = ( (double) (numR[i]) ) / ( (double)nbVolEdges );
// printf("%d\t%d\t%f\n",i,numR[i],ratio);
// }
// printf("\n");
// Outputs
// --------
// M_writeMsh(mesh,"test.msh",2);
ma->printStatistics(std::cout);
ma->writePos("meanRatio.pos",OD_MEANRATIO);
// Cleaning
// ---------
if (ma) delete ma;
if (sizeField) delete sizeField;
M_delete(mesh);
GM_delete(model);
displayMemoryUsage("cleaned");
MAdLibFinalize();
}
// ----------------------------------------------------------------------
|
