1 /* Copyright (c) 2010-2019. 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/Exception.hpp"
8 #include "simgrid/s4u/Engine.hpp"
9 #include "src/instr/instr_private.hpp"
10 #include "surf/surf.hpp"
11 #include "xbt/virtu.h" /* xbt_cmdline */
17 XBT_LOG_NEW_CATEGORY(instr, "Logging the behavior of the tracing system (used for Visualization/Analysis of simulations)");
18 XBT_LOG_NEW_DEFAULT_SUBCATEGORY (instr_config, instr, "Configuration");
20 std::ofstream tracing_file;
22 constexpr char OPT_TRACING_BASIC[] = "tracing/basic";
23 constexpr char OPT_TRACING_COMMENT_FILE[] = "tracing/comment-file";
24 constexpr char OPT_TRACING_DISABLE_DESTROY[] = "tracing/disable-destroy";
25 constexpr char OPT_TRACING_FORMAT_TI_ONEFILE[] = "tracing/smpi/format/ti-one-file";
26 constexpr char OPT_TRACING_SMPI[] = "tracing/smpi";
27 constexpr char OPT_TRACING_TOPOLOGY[] = "tracing/platform/topology";
29 static simgrid::config::Flag<bool> trace_enabled{
30 "tracing", "Enable the tracing system. You have to enable this option to use other tracing options.", false};
32 static simgrid::config::Flag<bool> trace_actor_enabled{
33 "tracing/msg/process", // FIXME rename this flag
34 "Trace the behavior of all categorized actors, grouping them by host. "
35 "Can be used to track actor location if the simulator does actor migration.",
38 static simgrid::config::Flag<bool> trace_vm_enabled{"tracing/vm", "Trace the behavior of all virtual machines.", false};
40 static simgrid::config::Flag<bool> trace_platform{"tracing/platform",
41 "Register the platform in the trace as a hierarchy.", false};
43 static simgrid::config::Flag<bool> trace_platform_topology{
44 OPT_TRACING_TOPOLOGY, "Register the platform topology in the trace as a graph.", true};
45 static simgrid::config::Flag<bool> trace_smpi_enabled{OPT_TRACING_SMPI, "Tracing of the SMPI interface.", false};
46 static simgrid::config::Flag<bool> trace_smpi_grouped{"tracing/smpi/group", "Group MPI processes by host.", false};
48 static simgrid::config::Flag<bool> trace_smpi_computing{
49 "tracing/smpi/computing", "Generate 'Computing' states to trace the out-of-SMPI parts of the application", false};
51 static simgrid::config::Flag<bool> trace_smpi_sleeping{
52 "tracing/smpi/sleeping", "Generate 'Sleeping' states for the sleeps in the application that do not pertain to SMPI",
55 static simgrid::config::Flag<bool> trace_view_internals{
56 "tracing/smpi/internals",
57 "Generate tracing events corresponding to point-to-point messages sent by SMPI collective communications", false};
59 static simgrid::config::Flag<bool> trace_categorized{
60 "tracing/categorized", "Trace categorized resource utilization of hosts and links.", false};
62 static simgrid::config::Flag<bool> trace_uncategorized{
63 "tracing/uncategorized",
64 "Trace uncategorized resource utilization of hosts and links. "
65 "To use if the simulator does not use tracing categories but resource utilization have to be traced.",
68 static simgrid::config::Flag<bool> trace_disable_destroy{
69 OPT_TRACING_DISABLE_DESTROY, {"tracing/disable_destroy"}, "Disable platform containers destruction.", false};
70 static simgrid::config::Flag<bool> trace_basic{OPT_TRACING_BASIC, "Avoid extended events (impoverished trace file).",
73 static simgrid::config::Flag<bool> trace_display_sizes{
74 "tracing/smpi/display-sizes",
75 "Add message size information (in bytes) to the to links and states (SMPI only). "
76 "For collectives, it usually corresponds to the total number of bytes sent by a process.",
79 static simgrid::config::Flag<bool> trace_disable_link{"tracing/disable_link",
80 "Do not trace link bandwidth and latency.", false};
81 static simgrid::config::Flag<bool> trace_disable_power{"tracing/disable_power", "Do not trace host power.", false};
83 static bool trace_active = false;
85 simgrid::instr::TraceFormat simgrid::instr::trace_format = simgrid::instr::TraceFormat::Paje;
87 static void TRACE_start()
92 // tracing system must be:
93 // - enabled (with --cfg=tracing:yes)
94 // - already configured (TRACE_global_init already called)
95 if (TRACE_is_enabled()) {
96 instr_define_callbacks();
98 XBT_DEBUG("Tracing starts");
99 /* init the tracing module to generate the right output */
100 std::string format = simgrid::config::get_value<std::string>("tracing/smpi/format");
101 XBT_DEBUG("Tracing format %s", format.c_str());
103 /* open the trace file(s) */
104 std::string filename = TRACE_get_filename();
105 tracing_file.open(filename.c_str(), std::ofstream::out);
106 if (tracing_file.fail()) {
107 throw simgrid::TracingError(
109 simgrid::xbt::string_printf("Tracefile %s could not be opened for writing.", filename.c_str()));
112 XBT_DEBUG("Filename %s is open for writing", filename.c_str());
114 if (format == "Paje") {
115 /* output generator version */
116 tracing_file << "#This file was generated using SimGrid-" << SIMGRID_VERSION_MAJOR << "." << SIMGRID_VERSION_MINOR
117 << "." << SIMGRID_VERSION_PATCH << std::endl;
118 tracing_file << "#[";
121 xbt_dynar_foreach (xbt_cmdline, cpt, str) {
122 tracing_file << str << " ";
124 tracing_file << "]" << std::endl;
127 /* output one line comment */
128 dump_comment(simgrid::config::get_value<std::string>("tracing/comment"));
130 /* output comment file */
131 dump_comment_file(simgrid::config::get_value<std::string>(OPT_TRACING_COMMENT_FILE));
133 if (format == "Paje") {
134 /* output Pajé header */
135 TRACE_header(TRACE_basic(), TRACE_display_sizes());
137 simgrid::instr::trace_format = simgrid::instr::TraceFormat::Ti;
140 XBT_DEBUG("Tracing is on");
144 static void TRACE_end()
146 if (not trace_active)
149 /* dump trace buffer */
150 TRACE_last_timestamp_to_dump = surf_get_clock();
151 TRACE_paje_dump_buffer(true);
153 simgrid::instr::Type* root_type = simgrid::instr::Container::get_root()->type_;
154 /* destroy all data structures of tracing (and free) */
155 delete simgrid::instr::Container::get_root();
158 /* close the trace files */
159 tracing_file.close();
160 XBT_DEBUG("Filename %s is closed", TRACE_get_filename().c_str());
162 /* de-activate trace */
163 trace_active = false;
164 XBT_DEBUG("Tracing is off");
165 XBT_DEBUG("Tracing system is shutdown");
168 bool TRACE_needs_platform ()
170 return TRACE_actor_is_enabled() || TRACE_vm_is_enabled() || TRACE_categorized() || TRACE_uncategorized() ||
171 TRACE_platform() || (TRACE_smpi_is_enabled() && TRACE_smpi_is_grouped());
174 bool TRACE_is_enabled()
176 return trace_enabled;
179 bool TRACE_platform()
181 return trace_platform;
184 bool TRACE_platform_topology()
186 return trace_platform_topology;
189 bool TRACE_smpi_is_enabled()
191 return (trace_smpi_enabled || TRACE_smpi_is_grouped()) && TRACE_is_enabled();
194 bool TRACE_smpi_is_grouped()
196 return trace_smpi_grouped;
199 bool TRACE_smpi_is_computing()
201 return trace_smpi_computing;
204 bool TRACE_smpi_is_sleeping()
206 return trace_smpi_sleeping;
209 bool TRACE_smpi_view_internals()
211 return trace_view_internals;
214 bool TRACE_categorized ()
216 return trace_categorized;
219 bool TRACE_uncategorized ()
221 return trace_uncategorized;
224 bool TRACE_actor_is_enabled()
226 return trace_actor_enabled && trace_enabled;
229 bool TRACE_vm_is_enabled()
231 return trace_vm_enabled && trace_enabled;
234 bool TRACE_disable_link()
236 return trace_disable_link && trace_enabled;
239 bool TRACE_disable_speed()
241 return trace_disable_power && trace_enabled;
244 bool TRACE_disable_destroy ()
246 return trace_disable_destroy && trace_enabled;
251 return trace_basic && trace_enabled;
254 bool TRACE_display_sizes ()
256 return trace_display_sizes && trace_smpi_enabled && trace_enabled;
259 int TRACE_precision ()
261 return simgrid::config::get_value<int>("tracing/precision");
264 std::string TRACE_get_filename()
266 return simgrid::config::get_value<std::string>("tracing/filename");
269 void TRACE_global_init()
271 static bool is_initialised = false;
275 is_initialised = true;
277 /* name of the tracefile */
278 simgrid::config::declare_flag<std::string>("tracing/filename", "Trace file created by the instrumented SimGrid.",
280 simgrid::config::declare_flag<std::string>(
281 "tracing/smpi/format", "Select trace output format used by SMPI. The default is the 'Paje' format. "
282 "The 'TI' (Time-Independent) format allows for trace replay.",
285 simgrid::config::declare_flag<bool>(OPT_TRACING_FORMAT_TI_ONEFILE,
286 "(smpi only) For replay format only : output to one file only", false);
287 simgrid::config::alias(OPT_TRACING_FORMAT_TI_ONEFILE, {"tracing/smpi/format/ti_one_file"});
288 simgrid::config::declare_flag<std::string>("tracing/comment", "Add a comment line to the top of the trace file.", "");
289 simgrid::config::declare_flag<std::string>(OPT_TRACING_COMMENT_FILE,
290 "Add the contents of a file as comments to the top of the trace.", "");
291 simgrid::config::alias(OPT_TRACING_COMMENT_FILE, {"tracing/comment_file"});
292 simgrid::config::declare_flag<int>("tracing/precision", "Numerical precision used when timestamping events "
293 "(expressed in number of digits after decimal point)",
296 /* Connect callbacks */
297 simgrid::s4u::Engine::on_platform_creation.connect(TRACE_start);
298 simgrid::s4u::Engine::on_deadlock.connect(TRACE_end);
299 simgrid::s4u::Engine::on_simulation_end.connect(TRACE_end);
302 static void print_line(const char* option, const char* desc, const char* longdesc)
304 std::string str = std::string("--cfg=") + option + " ";
306 int len = str.size();
307 XBT_HELP("%s%*.*s %s", str.c_str(), 30 - len, 30 - len, "", desc);
308 if (longdesc != nullptr) {
309 XBT_HELP("%s\n", longdesc);
315 XBT_HELP("Description of the tracing options accepted by this simulator:\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_DISABLE_DESTROY, "Disable platform containers destruction",
322 " Disable the destruction of containers at the end of simulation. This can be\n"
323 " used with simulators that have a different notion of time (different from\n"
324 " the simulated time).");
325 print_line(OPT_TRACING_BASIC, "Avoid extended events (impoverished trace file).",
326 " Some visualization tools are not able to parse correctly the Paje file format.\n"
327 " Use this option if you are using one of these tools to visualize the simulation\n"
328 " trace. Keep in mind that the trace might be incomplete, without all the\n"
329 " information that would be registered otherwise.");
330 print_line(OPT_TRACING_FORMAT_TI_ONEFILE, "Only works for SMPI now, and TI output format",
331 " By default, each process outputs to a separate file, inside a filename_files folder\n"
332 " By setting this option to yes, all processes will output to only one file\n"
333 " This is meant to avoid opening thousands of files with large simulations");
334 print_line(OPT_TRACING_TOPOLOGY, "Register the platform topology as a graph",
335 " This option (enabled by default) can be used to disable the tracing of\n"
336 " the platform topology in the trace file. Sometimes, such task is really\n"
337 " time consuming, since it must get the route from each host to other hosts\n"
338 " within the same Autonomous System (AS).");