1 /* Copyright (c) 2010-2018. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "include/xbt/config.hpp"
7 #include "simgrid/s4u/Engine.hpp"
8 #include "src/instr/instr_private.hpp"
9 #include "surf/surf.hpp"
10 #include "xbt/virtu.h" /* sg_cmdline */
15 XBT_LOG_NEW_CATEGORY(instr, "Logging the behavior of the tracing system (used for Visualization/Analysis of simulations)");
16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY (instr_config, instr, "Configuration");
18 std::ofstream tracing_file;
20 #define OPT_TRACING_BASIC "tracing/basic"
21 #define OPT_TRACING_CATEGORIZED "tracing/categorized"
22 #define OPT_TRACING_COMMENT_FILE "tracing/comment-file"
23 #define OPT_TRACING_COMMENT "tracing/comment"
24 #define OPT_TRACING_DISABLE_DESTROY "tracing/disable-destroy"
25 #define OPT_TRACING_FORMAT_TI_ONEFILE "tracing/smpi/format/ti-one-file"
26 #define OPT_TRACING_PLATFORM "tracing/platform"
27 #define OPT_TRACING_SMPI_COMPUTING "tracing/smpi/computing"
28 #define OPT_TRACING_SMPI_GROUP "tracing/smpi/group"
29 #define OPT_TRACING_SMPI_INTERNALS "tracing/smpi/internals"
30 #define OPT_TRACING_SMPI_SLEEPING "tracing/smpi/sleeping"
31 #define OPT_TRACING_SMPI "tracing/smpi"
32 #define OPT_TRACING_TOPOLOGY "tracing/platform/topology"
33 #define OPT_TRACING_UNCATEGORIZED "tracing/uncategorized"
35 static simgrid::config::Flag<bool> trace_enabled{
36 "tracing", "Enable the tracing system. You have to enable this option to use other tracing options.", false};
38 static simgrid::config::Flag<bool> trace_actor_enabled{
39 "tracing/msg/process", // FIXME rename this flag
40 "Trace the behavior of all categorized actors, grouping them by host. "
41 "Can be used to track actor location if the simulator does actor migration.",
44 static simgrid::config::Flag<bool> trace_vm_enabled{"tracing/vm", "Trace the behavior of all virtual machines.", false};
46 static simgrid::config::Flag<bool> trace_platform{OPT_TRACING_PLATFORM,
47 "Register the platform in the trace as a hierarchy.", false};
48 static simgrid::config::Flag<bool> trace_platform_topology{
49 OPT_TRACING_TOPOLOGY, "Register the platform topology in the trace as a graph.", true};
50 static simgrid::config::Flag<bool> trace_smpi_enabled{OPT_TRACING_SMPI, "Tracing of the SMPI interface.", false};
51 static simgrid::config::Flag<bool> trace_smpi_grouped{OPT_TRACING_SMPI_GROUP, "Group MPI processes by host.", false};
52 static simgrid::config::Flag<bool> trace_smpi_computing{
53 OPT_TRACING_SMPI_COMPUTING, "Generate states for timing out of SMPI parts of the application", false};
54 static simgrid::config::Flag<bool> trace_smpi_sleeping{
55 OPT_TRACING_SMPI_SLEEPING, "Generate states for timing out of SMPI parts of the application", false};
56 static simgrid::config::Flag<bool> trace_view_internals{
57 OPT_TRACING_SMPI_INTERNALS, "View internal messages sent by Collective communications in SMPI", false};
58 static simgrid::config::Flag<bool> trace_categorized{
59 OPT_TRACING_CATEGORIZED, "Tracing categorized resource utilization of hosts and links.", false};
60 static simgrid::config::Flag<bool> trace_uncategorized{
61 OPT_TRACING_UNCATEGORIZED, "Tracing uncategorized resource utilization of hosts and links.", false};
62 static simgrid::config::Flag<bool> trace_disable_destroy{
63 OPT_TRACING_DISABLE_DESTROY, {"tracing/disable_destroy"}, "Disable platform containers destruction.", false};
64 static simgrid::config::Flag<bool> trace_basic{OPT_TRACING_BASIC, "Avoid extended events (impoverished trace file).",
67 static simgrid::config::Flag<bool> trace_display_sizes{
68 "tracing/smpi/display-sizes",
69 "Add message size information (in bytes) to the to links and states (SMPI only). "
70 "For collectives, it usually corresponds to the total number of bytes sent by a process.",
73 static simgrid::config::Flag<bool> trace_disable_link{"tracing/disable_link",
74 "Do not trace link bandwidth and latency.", false};
75 static simgrid::config::Flag<bool> trace_disable_power{"tracing/disable_power", "Do not trace host power.", false};
77 static bool trace_active = false;
79 simgrid::instr::TraceFormat simgrid::instr::trace_format = simgrid::instr::TraceFormat::Paje;
81 static void TRACE_start()
86 // tracing system must be:
87 // - enabled (with --cfg=tracing:yes)
88 // - already configured (TRACE_global_init already called)
89 if (TRACE_is_enabled()) {
90 instr_define_callbacks();
92 XBT_DEBUG("Tracing starts");
93 /* init the tracing module to generate the right output */
94 std::string format = simgrid::config::get_value<std::string>("tracing/smpi/format");
95 XBT_DEBUG("Tracing format %s", format.c_str());
97 /* open the trace file(s) */
98 std::string filename = TRACE_get_filename();
99 tracing_file.open(filename.c_str(), std::ofstream::out);
100 if (tracing_file.fail()) {
101 THROWF(system_error, 1, "Tracefile %s could not be opened for writing.", filename.c_str());
104 XBT_DEBUG("Filename %s is open for writing", filename.c_str());
106 if (format == "Paje") {
107 /* output generator version */
108 tracing_file << "#This file was generated using SimGrid-" << SIMGRID_VERSION_MAJOR << "." << SIMGRID_VERSION_MINOR
109 << "." << SIMGRID_VERSION_PATCH << std::endl;
110 tracing_file << "#[";
113 xbt_dynar_foreach (xbt_cmdline, cpt, str) {
114 tracing_file << str << " ";
116 tracing_file << "]" << std::endl;
119 /* output one line comment */
120 dump_comment(simgrid::config::get_value<std::string>(OPT_TRACING_COMMENT));
122 /* output comment file */
123 dump_comment_file(simgrid::config::get_value<std::string>(OPT_TRACING_COMMENT_FILE));
125 if (format == "Paje") {
126 /* output Pajé header */
127 TRACE_header(TRACE_basic(), TRACE_display_sizes());
129 simgrid::instr::trace_format = simgrid::instr::TraceFormat::Ti;
132 XBT_DEBUG("Tracing is on");
136 static void TRACE_end()
138 if (not trace_active)
141 /* dump trace buffer */
142 TRACE_last_timestamp_to_dump = surf_get_clock();
143 TRACE_paje_dump_buffer(true);
145 simgrid::instr::Type* root_type = simgrid::instr::Container::get_root()->type_;
146 /* destroy all data structures of tracing (and free) */
147 delete simgrid::instr::Container::get_root();
150 /* close the trace files */
151 tracing_file.close();
152 XBT_DEBUG("Filename %s is closed", TRACE_get_filename().c_str());
154 /* de-activate trace */
155 trace_active = false;
156 XBT_DEBUG("Tracing is off");
157 XBT_DEBUG("Tracing system is shutdown");
160 bool TRACE_needs_platform ()
162 return TRACE_actor_is_enabled() || TRACE_vm_is_enabled() || TRACE_categorized() || TRACE_uncategorized() ||
163 TRACE_platform() || (TRACE_smpi_is_enabled() && TRACE_smpi_is_grouped());
166 bool TRACE_is_enabled()
168 return trace_enabled;
171 bool TRACE_platform()
173 return trace_platform;
176 bool TRACE_platform_topology()
178 return trace_platform_topology;
181 bool TRACE_smpi_is_enabled()
183 return (trace_smpi_enabled || TRACE_smpi_is_grouped()) && TRACE_is_enabled();
186 bool TRACE_smpi_is_grouped()
188 return trace_smpi_grouped;
191 bool TRACE_smpi_is_computing()
193 return trace_smpi_computing;
196 bool TRACE_smpi_is_sleeping()
198 return trace_smpi_sleeping;
201 bool TRACE_smpi_view_internals()
203 return trace_view_internals;
206 bool TRACE_categorized ()
208 return trace_categorized;
211 bool TRACE_uncategorized ()
213 return trace_uncategorized;
216 bool TRACE_actor_is_enabled()
218 return trace_actor_enabled && trace_enabled;
221 bool TRACE_vm_is_enabled()
223 return trace_vm_enabled && trace_enabled;
226 bool TRACE_disable_link()
228 return trace_disable_link && trace_enabled;
231 bool TRACE_disable_speed()
233 return trace_disable_power && trace_enabled;
236 bool TRACE_disable_destroy ()
238 return trace_disable_destroy && trace_enabled;
243 return trace_basic && trace_enabled;
246 bool TRACE_display_sizes ()
248 return trace_display_sizes && trace_smpi_enabled && trace_enabled;
251 int TRACE_precision ()
253 return simgrid::config::get_value<int>("tracing/precision");
256 std::string TRACE_get_filename()
258 return simgrid::config::get_value<std::string>("tracing/filename");
261 void TRACE_global_init()
263 static bool is_initialised = false;
267 is_initialised = true;
269 /* name of the tracefile */
270 simgrid::config::declare_flag<std::string>("tracing/filename", "Trace file created by the instrumented SimGrid.",
272 simgrid::config::declare_flag<std::string>(
273 "tracing/smpi/format", "Select trace output format used by SMPI. The default is the 'Paje' format. "
274 "The 'TI' (Time-Independent) format allows for trace replay.",
277 simgrid::config::declare_flag<bool>(OPT_TRACING_FORMAT_TI_ONEFILE,
278 "(smpi only) For replay format only : output to one file only", false);
279 simgrid::config::alias(OPT_TRACING_FORMAT_TI_ONEFILE, {"tracing/smpi/format/ti_one_file"});
280 simgrid::config::declare_flag<std::string>(OPT_TRACING_COMMENT, "Comment to be added on the top of the trace file.",
282 simgrid::config::declare_flag<std::string>(
283 OPT_TRACING_COMMENT_FILE, "The contents of the file are added to the top of the trace file as comment.", "");
284 simgrid::config::alias(OPT_TRACING_COMMENT_FILE, {"tracing/comment_file"});
285 simgrid::config::declare_flag<int>("tracing/precision", "Numerical precision used when timestamping events "
286 "(expressed in number of digits after decimal point)",
289 /* Connect callbacks */
290 simgrid::s4u::on_platform_creation.connect(TRACE_start);
291 simgrid::s4u::on_deadlock.connect(TRACE_end);
292 simgrid::s4u::on_simulation_end.connect(TRACE_end);
295 static void print_line(const char* option, const char* desc, const char* longdesc)
297 std::string str = std::string("--cfg=") + option + " ";
299 int len = str.size();
300 printf("%s%*.*s %s\n", str.c_str(), 30 - len, 30 - len, "", desc);
301 if (longdesc != nullptr) {
302 printf ("%s\n\n", longdesc);
308 printf("Description of the tracing options accepted by this simulator:\n\n");
309 print_line(OPT_TRACING_CATEGORIZED, "Trace categorized resource utilization",
310 " It activates the categorized resource utilization tracing. It should\n"
311 " be enabled if tracing categories are used by this simulator.");
312 print_line(OPT_TRACING_UNCATEGORIZED, "Trace uncategorized resource utilization",
313 " It activates the uncategorized resource utilization tracing. Use it if\n"
314 " this simulator do not use tracing categories and resource use have to be\n"
316 print_line(OPT_TRACING_SMPI, "Trace the MPI Interface (SMPI)",
317 " This option only has effect if this simulator is SMPI-based. Traces the MPI\n"
318 " interface and generates a trace that can be analyzed using Gantt-like\n"
319 " visualizations. Every MPI function (implemented by SMPI) is transformed in a\n"
320 " state, and point-to-point communications can be analyzed with arrows.");
321 print_line(OPT_TRACING_SMPI_GROUP, "Group MPI processes by host (SMPI)",
322 " This option only has effect if this simulator is SMPI-based. The processes\n"
323 " are grouped by the hosts where they were executed.");
324 print_line(OPT_TRACING_SMPI_COMPUTING, "Generates a \" Computing \" State",
325 " This option aims at tracing computations in the application, outside SMPI\n"
326 " to allow further study of simulated or real computation time");
327 print_line(OPT_TRACING_SMPI_SLEEPING, "Generates a \" Sleeping \" State",
328 " This option aims at tracing sleeps in the application, outside SMPI\n"
329 " to allow further study of simulated or real sleep time");
330 print_line(OPT_TRACING_SMPI_INTERNALS, "Generates tracing events corresponding",
331 " to point-to-point messages sent by collective communications");
332 print_line(OPT_TRACING_DISABLE_DESTROY, "Disable platform containers destruction",
333 " Disable the destruction of containers at the end of simulation. This can be\n"
334 " used with simulators that have a different notion of time (different from\n"
335 " the simulated time).");
336 print_line(OPT_TRACING_BASIC, "Avoid extended events (impoverished trace file).",
337 " Some visualization tools are not able to parse correctly the Paje file format.\n"
338 " Use this option if you are using one of these tools to visualize the simulation\n"
339 " trace. Keep in mind that the trace might be incomplete, without all the\n"
340 " information that would be registered otherwise.");
341 print_line(OPT_TRACING_FORMAT_TI_ONEFILE, "Only works for SMPI now, and TI output format",
342 " By default, each process outputs to a separate file, inside a filename_files folder\n"
343 " By setting this option to yes, all processes will output to only one file\n"
344 " This is meant to avoid opening thousands of files with large simulations");
345 print_line(OPT_TRACING_COMMENT, "Comment to be added on the top of the trace file.",
346 " Use this to add a comment line to the top of the trace file.");
347 print_line(OPT_TRACING_COMMENT_FILE, "File contents added to trace file as comment.",
348 " Use this to add the contents of a file to the top of the trace file as comment.");
349 print_line(OPT_TRACING_TOPOLOGY, "Register the platform topology as a graph",
350 " This option (enabled by default) can be used to disable the tracing of\n"
351 " the platform topology in the trace file. Sometimes, such task is really\n"
352 " time consuming, since it must get the route from each host to other hosts\n"
353 " within the same Autonomous System (AS).");