-/* Copyright (c) 2008-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2008-2022. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include "xbt/config.hpp"
-#include "xbt/log.h"
-#include <xbt/sysdep.h>
-
+#include "src/mc/mc_config.hpp"
#include "src/mc/mc_replay.hpp"
-#include <mc/mc.h>
-
#include <simgrid/sg_config.hpp>
-#if SIMGRID_HAVE_MC
-#include "src/mc/mc_private.hpp"
-#include "src/mc/mc_safety.hpp"
-#endif
-
-#include "src/mc/mc_record.hpp"
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_config, mc, "Configuration of the Model Checker");
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(xbt_cfg);
#if SIMGRID_HAVE_MC
-namespace simgrid {
-namespace mc {
-/* Configuration support */
-simgrid::mc::ReductionMode reduction_mode = simgrid::mc::ReductionMode::unset;
-}
-}
-#endif
+#include <string_view>
-#if !SIMGRID_HAVE_MC
+#else
#define _sg_do_model_check 0
#endif
static void _mc_cfg_cb_check(const char* spec, bool more_check = true)
{
- if (_sg_cfg_init_status && not _sg_do_model_check && more_check)
- xbt_die("You are specifying a %s after the initialization (through MSG_config?), but the program was not run under "
- "the model-checker (with simgrid-mc)). This won't work, sorry.",
- spec);
+ xbt_assert(_sg_cfg_init_status == 0 || _sg_do_model_check || not more_check,
+ "Specifying a %s is only allowed within the model-checker. Please use simgrid-mc.", spec);
}
/* Replay (this part is enabled even if MC it disabled) */
simgrid::config::Flag<std::string> _sg_mc_record_path{
- "model-check/replay", "Model-check path to replay (as reported by SimGrid when a violation is reported)", ""};
+ "model-check/replay", "Model-check path to replay (as reported by SimGrid when a violation is reported)", "",
+ [](std::string_view value) { MC_record_path() = value; }};
simgrid::config::Flag<bool> _sg_mc_timeout{
- "model-check/timeout", "Whether to enable timeouts for wait requests", false,
- [](bool) { _mc_cfg_cb_check("value to enable/disable timeout for wait requests", MC_record_path.empty()); }};
+ "model-check/timeout", "Whether to enable timeouts for wait requests", false, [](bool) {
+ _mc_cfg_cb_check("value to enable/disable timeout for wait requests", not MC_record_replay_is_active());
+ }};
#if SIMGRID_HAVE_MC
int _sg_do_model_check = 0;
int _sg_mc_max_visited_states = 0;
-simgrid::config::Flag<bool> _sg_do_model_check_record{"model-check/record", "Record the model-checking paths", false};
+static simgrid::config::Flag<std::string> cfg_mc_reduction{
+ "model-check/reduction", "Specify the kind of exploration reduction (either none or DPOR)", "dpor",
+ [](std::string_view value) {
+ if (value != "none" && value != "dpor")
+ xbt_die("configuration option 'model-check/reduction' can only take 'none' or 'dpor' as a value");
+ }};
simgrid::config::Flag<int> _sg_mc_checkpoint{
"model-check/checkpoint", "Specify the amount of steps between checkpoints during stateful model-checking "
"compromises between speed and memory consumption.",
0, [](int) { _mc_cfg_cb_check("checkpointing value"); }};
-simgrid::config::Flag<bool> _sg_mc_sparse_checkpoint{"model-check/sparse-checkpoint", "Use sparse per-page snapshots.",
- false, [](bool) { _mc_cfg_cb_check("checkpointing value"); }};
-
-simgrid::config::Flag<bool> _sg_mc_ksm{"model-check/ksm", "Kernel same-page merging", false,
- [](bool) { _mc_cfg_cb_check("KSM value"); }};
-
simgrid::config::Flag<std::string> _sg_mc_property_file{
"model-check/property", "Name of the file containing the property, as formatted by the ltl2ba program.", "",
[](const std::string&) { _mc_cfg_cb_check("property"); }};
simgrid::config::Flag<bool> _sg_mc_comms_determinism{
"model-check/communications-determinism",
- {"model-check/communications_determinism"},
"Whether to enable the detection of communication determinism",
false,
[](bool) {
simgrid::config::Flag<bool> _sg_mc_send_determinism{
"model-check/send-determinism",
- {"model-check/send_determinism"},
"Enable/disable the detection of send-determinism in the communications schemes",
false,
[](bool) {
_mc_cfg_cb_check("value to enable/disable the detection of send-determinism in the communications schemes");
}};
-static simgrid::config::Flag<std::string> _sg_mc_reduce{
- "model-check/reduction", "Specify the kind of exploration reduction (either none or DPOR)", "dpor",
- [](const std::string& value) {
- _mc_cfg_cb_check("reduction strategy");
-
- if (value == "none")
- simgrid::mc::reduction_mode = simgrid::mc::ReductionMode::none;
- else if (value == "dpor")
- simgrid::mc::reduction_mode = simgrid::mc::ReductionMode::dpor;
- else
- xbt_die("configuration option model-check/reduction can only take 'none' or 'dpor' as a value");
+simgrid::config::Flag<bool> _sg_mc_unfolding_checker{
+ "model-check/unfolding-checker",
+ "Whether to enable the unfolding-based dynamic partial order reduction to MPI programs", false, [](bool) {
+ _mc_cfg_cb_check("value to to enable/disable the unfolding-based dynamic partial order reduction to MPI programs");
}};
-simgrid::config::Flag<bool> _sg_mc_hash{
- "model-check/hash", "Whether to enable state hash for state comparison (experimental)", false,
- [](bool) { _mc_cfg_cb_check("value to enable/disable the use of global hash to speedup state comparaison"); }};
-
-simgrid::config::Flag<bool> _sg_mc_snapshot_fds{
- "model-check/snapshot-fds",
- {"model-check/snapshot_fds"},
- "Whether file descriptors must be snapshoted (currently unusable)",
- false,
- [](bool) { _mc_cfg_cb_check("value to enable/disable the use of FD snapshotting"); }};
+simgrid::config::Flag<std::string> _sg_mc_buffering{
+ "smpi/buffering",
+ "Buffering semantic to use for MPI (only used in MC)",
+ "infty",
+ {{"zero", "No system buffering: MPI_Send is blocking"},
+ {"infty", "Infinite system buffering: MPI_Send returns immediately"}},
+ [](std::string_view) { _mc_cfg_cb_check("buffering mode"); }};
simgrid::config::Flag<int> _sg_mc_max_depth{"model-check/max-depth",
- {"model-check/max_depth"},
"Maximal exploration depth (default: 1000)",
1000,
[](int) { _mc_cfg_cb_check("max depth value"); }};
static simgrid::config::Flag<int> _sg_mc_max_visited_states__{
- "model-check/visited", "Specify the number of visited state stored for state comparison reduction. If value=5, the "
- "last 5 visited states are stored. If value=0 (the default), all states are stored.",
+ "model-check/visited",
+ "Specify the number of visited state stored for state comparison reduction: any branch leading to a state that is "
+ "already stored is cut.\n"
+ "If value=5, the last 5 visited states are stored. If value=0 (the default), no state is stored and this reduction "
+ "technique is disabled.",
0, [](int value) {
_mc_cfg_cb_check("number of stored visited states");
_sg_mc_max_visited_states = value;
simgrid::config::Flag<std::string> _sg_mc_dot_output_file{
"model-check/dot-output",
- {"model-check/dot_output"},
"Name of dot output file corresponding to graph state",
"",
[](const std::string&) { _mc_cfg_cb_check("file name for a dot output of graph state"); }};
"model-check/termination", "Whether to enable non progressive cycle detection", false,
[](bool) { _mc_cfg_cb_check("value to enable/disable the detection of non progressive cycles"); }};
+bool simgrid::mc::cfg_use_DPOR()
+{
+ if (cfg_mc_reduction.get() == "dpor" && _sg_mc_max_visited_states__ > 0) {
+ XBT_INFO("Disabling DPOR since state-equality reduction is activated with 'model-check/visited'");
+ return false;
+ }
+ return cfg_mc_reduction.get() == "dpor";
+}
+
#endif
