Repository navigation
Expand file tree
/
Copy pathmain.cpp
More file actions
276 lines (229 loc) · 8.2 KB
/
Copy pathmain.cpp
File metadata and controls
276 lines (229 loc) · 8.2 KB
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
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
//@HEADER
// ************************************************************************
//
// MiniFE: Simple Finite Element Assembly and Solve
// Copyright (2006-2013) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
//
// ************************************************************************
//@HEADER
#include <iostream>
#include <ctime>
#include <cstdlib>
#include <vector>
#include <miniFE_version.h>
#include <outstream.hpp>
#ifdef _OPENMP
#include <omp.h>
#endif
#ifdef MINIFE_REPORT_RUSAGE
#include <sys/time.h>
#include <sys/resource.h>
#endif
#ifdef HAVE_MPI
#include <mpi.h>
#endif
#include <Box.hpp>
#include <BoxPartition.hpp>
#include <box_utils.hpp>
#include <Parameters.hpp>
#include <utils.hpp>
#include <driver.hpp>
#include <YAML_Doc.hpp>
#if MINIFE_INFO != 0
#include <miniFE_info.hpp>
#else
#include <miniFE_no_info.hpp>
#endif
//The following macros should be specified as compile-macros in the
//makefile. They are defaulted here just in case...
#ifndef MINIFE_SCALAR
#define MINIFE_SCALAR double
#endif
#ifndef MINIFE_LOCAL_ORDINAL
#define MINIFE_LOCAL_ORDINAL int
#endif
#ifndef MINIFE_GLOBAL_ORDINAL
#define MINIFE_GLOBAL_ORDINAL int
#endif
// ************************************************************************
void add_params_to_yaml(YAML_Doc& doc, miniFE::Parameters& params);
void add_configuration_to_yaml(YAML_Doc& doc, int numprocs, int numthreads);
void add_timestring_to_yaml(YAML_Doc& doc);
//
//We will create a 'box' of size nx X ny X nz, partition it among processors,
//then call miniFE::driver which will use the partitioned box as the domain
//from which to assemble finite-element matrices into a global matrix and
//vector, then solve the linear-system using Conjugate Gradients.
//
int main(int argc, char** argv) {
miniFE::Parameters params;
miniFE::get_parameters(argc, argv, params);
int numprocs = 1, myproc = 0;
miniFE::initialize_mpi(argc, argv, numprocs, myproc);
miniFE::timer_type start_time = miniFE::mytimer();
#ifdef MINIFE_DEBUG
outstream(numprocs, myproc);
#endif
if(myproc==0) {
std::cout << "MiniFE Mini-App, OpenMP Peer Implementation" << std::endl;
std::cout << "Creating OpenMP Thread Pool..." << std::endl;
}
int value = 0;
const int thread_count = omp_get_max_threads();
#pragma omp parallel for reduction(+:value)
for(int i = 0; i < thread_count; ++i) {
value += 1;
}
double global_threadcount;
double local_threadcount = value;
#ifdef HAVE_MPI
MPI_Allreduce(&local_threadcount,&global_threadcount,1,MPI_DOUBLE,MPI_SUM,MPI_COMM_WORLD);
#else
global_threadcount = local_threadcount;
#endif
if(myproc==0) {
std::cout << "Counted: " << global_threadcount << " threads." << std::endl;
std::cout << "Running MiniFE Mini-App..." << std::endl;
}
//make sure each processor has the same parameters:
miniFE::broadcast_parameters(params);
Box global_box = { 0, params.nx, 0, params.ny, 0, params.nz };
std::vector<Box> local_boxes(numprocs);
box_partition(0, numprocs, 2, global_box, &local_boxes[0]);
Box& my_box = local_boxes[myproc];
MINIFE_GLOBAL_ORDINAL num_my_ids = miniFE::get_num_ids<MINIFE_GLOBAL_ORDINAL>(my_box);
MINIFE_GLOBAL_ORDINAL min_ids = num_my_ids;
#ifdef HAVE_MPI
MPI_Datatype mpi_dtype = miniFE::TypeTraits<MINIFE_GLOBAL_ORDINAL>::mpi_type();
MPI_Allreduce(&num_my_ids, &min_ids, 1, mpi_dtype, MPI_MIN, MPI_COMM_WORLD);
#endif
if (min_ids == 0) {
std::cout<<"One or more processors have 0 equations. Not currently supported. Exiting."<<std::endl;
miniFE::finalize_mpi();
return 1;
}
std::ostringstream osstr;
osstr << "miniFE." << params.nx << "x" << params.ny << "x" << params.nz;
#ifdef HAVE_MPI
osstr << ".P" << numprocs;
#endif
#ifdef _OPENMP
osstr << ".T" << omp_get_max_threads();
#endif
osstr << ".";
if (params.name != "") osstr << params.name << ".";
YAML_Doc doc("miniFE", MINIFE_VERSION, ".", osstr.str());
if (myproc == 0) {
add_params_to_yaml(doc, params);
add_configuration_to_yaml(doc, numprocs, params.numthreads);
add_timestring_to_yaml(doc);
}
//Most of the program is performed in the 'driver' function, which is
//templated on < Scalar, LocalOrdinal, GlobalOrdinal >.
//To run miniFE with float instead of double, or 'long long' instead of int,
//etc., change these template-parameters by changing the macro definitions in
//the makefile or on the make command-line.
int return_code =
miniFE::driver< MINIFE_SCALAR, MINIFE_LOCAL_ORDINAL, MINIFE_GLOBAL_ORDINAL>(global_box, my_box, params, doc);
miniFE::timer_type total_time = miniFE::mytimer() - start_time;
#ifdef MINIFE_REPORT_RUSAGE
struct rusage get_mem;
getrusage(RUSAGE_SELF, &get_mem);
long long int rank_rss = get_mem.ru_maxrss;
long long int global_rss = 0;
long long int max_rss = 0;
#ifdef HAVE_MPI
MPI_Reduce(&rank_rss, &global_rss, 1,
MPI_LONG_LONG, MPI_SUM, 0, MPI_COMM_WORLD);
MPI_Reduce(&rank_rss, &max_rss, 1,
MPI_LONG_LONG, MPI_MAX, 0, MPI_COMM_WORLD);
if (myproc == 0) {
doc.add("Global All-RSS (kB)", global_rss);
doc.add("Global Max-RSS (kB)", max_rss);
}
#else
doc.add("RSS (kB)", rank_rss);
#endif
#endif
if (myproc == 0) {
doc.add("Total Program Time",total_time);
doc.generateYAML();
}
miniFE::finalize_mpi();
return return_code;
}
void add_params_to_yaml(YAML_Doc& doc, miniFE::Parameters& params)
{
doc.add("Global Run Parameters","");
doc.get("Global Run Parameters")->add("dimensions","");
doc.get("Global Run Parameters")->get("dimensions")->add("nx",params.nx);
doc.get("Global Run Parameters")->get("dimensions")->add("ny",params.ny);
doc.get("Global Run Parameters")->get("dimensions")->add("nz",params.nz);
doc.get("Global Run Parameters")->add("load_imbalance", params.load_imbalance);
if (params.mv_overlap_comm_comp == 1) {
std::string val("1 (yes)");
doc.get("Global Run Parameters")->add("mv_overlap_comm_comp", val);
}
else {
std::string val("0 (no)");
doc.get("Global Run Parameters")->add("mv_overlap_comm_comp", val);
}
#ifdef _OPENMP
doc.get("Global Run Parameters")->add("OpenMP Max Threads:", omp_get_max_threads());
#endif
}
void add_configuration_to_yaml(YAML_Doc& doc, int numprocs, int numthreads)
{
doc.get("Global Run Parameters")->add("number of processors", numprocs);
doc.add("Platform","");
doc.get("Platform")->add("hostname",MINIFE_HOSTNAME);
doc.get("Platform")->add("kernel name",MINIFE_KERNEL_NAME);
doc.get("Platform")->add("kernel release",MINIFE_KERNEL_RELEASE);
doc.get("Platform")->add("processor",MINIFE_PROCESSOR);
doc.add("Build","");
doc.get("Build")->add("CXX",MINIFE_CXX);
#if MINIFE_INFO != 0
doc.get("Build")->add("compiler version",MINIFE_CXX_VERSION);
#endif
doc.get("Build")->add("CXXFLAGS",MINIFE_CXXFLAGS);
std::string using_mpi("no");
#ifdef HAVE_MPI
using_mpi = "yes";
#endif
doc.get("Build")->add("using MPI",using_mpi);
}
void add_timestring_to_yaml(YAML_Doc& doc)
{
std::time_t rawtime;
struct tm * timeinfo;
std::time(&rawtime);
timeinfo = std::localtime(&rawtime);
std::ostringstream osstr;
osstr.fill('0');
osstr << timeinfo->tm_year+1900 << "-";
osstr.width(2); osstr << timeinfo->tm_mon+1 << "-";
osstr.width(2); osstr << timeinfo->tm_mday << ", ";
osstr.width(2); osstr << timeinfo->tm_hour << "-";
osstr.width(2); osstr << timeinfo->tm_min << "-";
osstr.width(2); osstr << timeinfo->tm_sec;
std::string timestring = osstr.str();
doc.add("Run Date/Time",timestring);
}