- if (_sg_cfg_init_status == 0) { /* Only create stuff if not already inited */
-
- /* Plugins configuration */
- describe_model(description,descsize, surf_plugin_description, "plugin", "The plugins");
- xbt_cfg_register_string("plugin", nullptr, &_sg_cfg_cb__plugin, description);
-
- describe_model(description,descsize, surf_cpu_model_description, "model", "The model to use for the CPU");
- xbt_cfg_register_string("cpu/model", "Cas01", &_sg_cfg_cb__cpu_model, description);
-
- describe_model(description,descsize, surf_optimization_mode_description, "optimization mode", "The optimization modes to use for the CPU");
- xbt_cfg_register_string("cpu/optim", "Lazy", &_sg_cfg_cb__optimization_mode, description);
-
- describe_model(description,descsize, surf_storage_model_description, "model", "The model to use for the storage");
- xbt_cfg_register_string("storage/model", "default", &_sg_cfg_cb__storage_mode, description);
-
- describe_model(description,descsize, surf_network_model_description, "model", "The model to use for the network");
- xbt_cfg_register_string("network/model", "LV08", &_sg_cfg_cb__network_model, description);
-
- describe_model(description,descsize, surf_optimization_mode_description, "optimization mode", "The optimization modes to use for the network");
- xbt_cfg_register_string("network/optim", "Lazy", &_sg_cfg_cb__optimization_mode, description);
-
- describe_model(description,descsize, surf_host_model_description, "model", "The model to use for the host");
- xbt_cfg_register_string("host/model", "default", &_sg_cfg_cb__host_model, description);
-
- sg_tcp_gamma = 4194304.0;
- simgrid::config::bindFlag(sg_tcp_gamma, { "network/TCP-gamma", "network/TCP_gamma" },
- "Size of the biggest TCP window (cat /proc/sys/net/ipv4/tcp_[rw]mem for recv/send window; Use the last given value, which is the max window size)");
-
- simgrid::config::bindFlag(sg_surf_precision, "surf/precision",
- "Numerical precision used when updating simulation times (in seconds)");
-
- simgrid::config::bindFlag(sg_maxmin_precision, "maxmin/precision",
- "Numerical precision used when computing resource sharing (in flops/sec or bytes/sec)");
-
- simgrid::config::bindFlag(sg_concurrency_limit, "maxmin/concurrency-limit",
- "Maximum number of concurrent variables in the maxmim system. Also limits the number of "
- "processes on each host, at higher level. (default: -1 means no such limitation)");
- xbt_cfg_register_alias("maxmin/concurrency-limit", "maxmin/concurrency_limit");
-
- /* The parameters of network models */
-
- // real default for "network/sender-gap" is set in network_smpi.cpp:
- sg_sender_gap = NAN;
- simgrid::config::bindFlag(sg_sender_gap, { "network/sender-gap", "network/sender_gap" },
- "Minimum gap between two overlapping sends");
-
- sg_latency_factor = 1.0;
- simgrid::config::bindFlag(sg_latency_factor, { "network/latency-factor", "network/latency_factor" },
- "Correction factor to apply to the provided latency (default value set by network model)");
-
- sg_bandwidth_factor = 1.0;
- simgrid::config::bindFlag(sg_bandwidth_factor, { "network/bandwidth-factor", "network/bandwidth_factor" },
- "Correction factor to apply to the provided bandwidth (default value set by network model)");
-
- // real default for "network/weight-S" is set in network_*.cpp:
- sg_weight_S_parameter = NAN;
- simgrid::config::bindFlag(sg_weight_S_parameter, { "network/weight-S", "network/weight_S" },
- "Correction factor to apply to the weight of competing streams (default value set by network model)");
-
- /* Inclusion path */
- simgrid::config::declareFlag<std::string>("path",
- "Lookup path for inclusions in platform and deployment XML files",
- "",
- [](std::string const& path) {
- if (path[0] != '\0') {
- surf_path.push_back(path);
- }
- });
-
- xbt_cfg_register_boolean("cpu/maxmin-selective-update", "no", nullptr,
- "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)");
- xbt_cfg_register_alias("cpu/maxmin-selective-update","cpu/maxmin_selective_update");
- xbt_cfg_register_boolean("network/maxmin-selective-update", "no", nullptr,
- "Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)");
- xbt_cfg_register_alias("network/maxmin-selective-update","network/maxmin_selective_update");
- /* Replay (this part is enabled even if MC it disabled) */
- xbt_cfg_register_string("model-check/replay", nullptr, _sg_cfg_cb_model_check_replay,
- "Model-check path to replay (as reported by SimGrid when a violation is reported)");
-
-#if SIMGRID_HAVE_MC
- /* do model-checking-record */
- xbt_cfg_register_boolean("model-check/record", "no", _sg_cfg_cb_model_check_record, "Record the model-checking paths");
-
- xbt_cfg_register_int("model-check/checkpoint", 0, _mc_cfg_cb_checkpoint,
- "Specify the amount of steps between checkpoints during stateful model-checking (default: 0 => stateless verification). "
- "If value=1, one checkpoint is saved for each step => faster verification, but huge memory consumption; higher values are good compromises between speed and memory consumption.");
-
- xbt_cfg_register_boolean("model-check/sparse-checkpoint", "no", _mc_cfg_cb_sparse_checkpoint, "Use sparse per-page snapshots.");
- xbt_cfg_register_boolean("model-check/ksm", "no", _mc_cfg_cb_ksm, "Kernel same-page merging");
-
- xbt_cfg_register_string("model-check/property","", _mc_cfg_cb_property,
- "Name of the file containing the property, as formated by the ltl2ba program.");
- xbt_cfg_register_boolean("model-check/communications-determinism", "no", _mc_cfg_cb_comms_determinism,
- "Whether to enable the detection of communication determinism");
- xbt_cfg_register_alias("model-check/communications-determinism","model-check/communications_determinism");
-
- xbt_cfg_register_boolean("model-check/send-determinism", "no", _mc_cfg_cb_send_determinism,
- "Enable/disable the detection of send-determinism in the communications schemes");
- xbt_cfg_register_alias("model-check/send-determinism","model-check/send_determinism");
-
- /* Specify the kind of model-checking reduction */
- xbt_cfg_register_string("model-check/reduction", "dpor", _mc_cfg_cb_reduce,
- "Specify the kind of exploration reduction (either none or DPOR)");
- xbt_cfg_register_boolean("model-check/timeout", "no", _mc_cfg_cb_timeout,
- "Whether to enable timeouts for wait requests");
-
- xbt_cfg_register_boolean("model-check/hash", "no", _mc_cfg_cb_hash, "Whether to enable state hash for state comparison (experimental)");
- xbt_cfg_register_boolean("model-check/snapshot-fds", "no", _mc_cfg_cb_snapshot_fds,
- "Whether file descriptors must be snapshoted (currently unusable)");
- xbt_cfg_register_alias("model-check/snapshot-fds","model-check/snapshot_fds");
- xbt_cfg_register_int("model-check/max-depth", 1000, _mc_cfg_cb_max_depth, "Maximal exploration depth (default: 1000)");
- xbt_cfg_register_alias("model-check/max-depth","model-check/max_depth");
- xbt_cfg_register_int("model-check/visited", 0, _mc_cfg_cb_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.");
-
- xbt_cfg_register_string("model-check/dot-output", "", _mc_cfg_cb_dot_output, "Name of dot output file corresponding to graph state");
- xbt_cfg_register_alias("model-check/dot-output","model-check/dot_output");
- xbt_cfg_register_boolean("model-check/termination", "no", _mc_cfg_cb_termination, "Whether to enable non progressive cycle detection");
-#endif
-
- xbt_cfg_register_boolean("verbose-exit", "yes", _sg_cfg_cb_verbose_exit, "Activate the \"do nothing\" mode in Ctrl-C");
-
- xbt_cfg_register_int("contexts/stack-size", 8*1024, _sg_cfg_cb_context_stack_size, "Stack size of contexts in KiB");
- /* (FIXME: this is unpleasant) Reset this static variable that was altered when setting the default value. */
- smx_context_stack_size_was_set = 0;
- xbt_cfg_register_alias("contexts/stack-size","contexts/stack_size");
-
- /* guard size for contexts stacks in memory pages */
- xbt_cfg_register_int("contexts/guard-size",
-#if defined(_WIN32) || (PTH_STACKGROWTH != -1)
- 0,
+ if (_sg_cfg_init_status != 0) { /* Only create stuff if not already inited */
+ XBT_WARN("Call to sg_config_init() after initialization ignored");
+ return;
+ }
+ _sg_cfg_init_status = 1;
+
+ /* Plugins and models configuration */
+ simgrid_plugins().create_flag("plugin", "The plugins", "", true);
+ simgrid_cpu_models().create_flag("cpu/model", "The model to use for the CPU", "Cas01", false);
+ simgrid_network_models().create_flag("network/model", "The model to use for the network", "LV08", false);
+ simgrid_host_models().create_flag("host/model", "The model to use for the host", "default", false);
+ simgrid_disk_models().create_flag("disk/model", "The model to use for the disk", "S19", false);
+
+ simgrid::config::bind_flag(sg_precision_timing, "precision/timing", {"surf/precision"},
+ "Numerical precision used when updating simulation times (in seconds)");
+
+ simgrid::config::bind_flag(sg_precision_workamount, "precision/work-amount", {"maxmin/precision"},
+ "Numerical precision used when computing resource sharing (in flops/sec or bytes/sec)");
+
+ simgrid::config::bind_flag(sg_concurrency_limit, "maxmin/concurrency-limit",
+ "Maximum number of concurrent variables in the maxmim system. Also limits the number of "
+ "processes on each host, at higher level. (default: -1 means no such limitation)");
+
+ /* The parameters of network models */
+ static simgrid::config::Flag<double> _sg_network_loopback_latency{
+ "network/loopback-lat",
+ "For network models with an implicit loopback link (L07, CM02, LV08), "
+ "latency of the loopback link. 0 by default",
+ 0.0};
+
+ static simgrid::config::Flag<double> _sg_network_loopback_bandwidth{
+ "network/loopback-bw",
+ "For network models with an implicit loopback link (L07, CM02, LV08), "
+ "bandwidth of the loopback link. 10GBps by default",
+ 10e9};
+
+ /* Inclusion path */
+ static simgrid::config::Flag<std::string> cfg_path{
+ "path", "Lookup path for inclusions in platform and deployment XML files", "./", [](std::string const& path) {
+ if (not path.empty())
+ simgrid::xbt::path_push(path);
+ }};
+
+ static simgrid::config::Flag<bool> cfg_cpu_maxmin_selective_update{
+ "cpu/maxmin-selective-update",
+ "Update the constraint set propagating recursively to others constraints "
+ "(off by default unless optim is set to lazy)",
+ false};
+ static simgrid::config::Flag<bool> cfg_network_maxmin_selective_update{"network/maxmin-selective-update",
+ "Update the constraint set propagating "
+ "recursively to others constraints (off by "
+ "default unless optim is set to lazy)",
+ false};
+
+ static simgrid::config::Flag<int> cfg_context_stack_size{
+ "contexts/stack-size", "Stack size of contexts in KiB (not with threads)", 8 * 1024,
+ [](int value) { simgrid::kernel::context::Context::stack_size = value * 1024; }};
+
+ /* guard size for contexts stacks in memory pages */
+#if (PTH_STACKGROWTH != -1)
+ int default_guard_size = 0;