-/* Copyright (c) 2009-2018. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2009-2019. 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. */
/* sg_config: configuration infrastructure for the simulation world */
#include "simgrid/sg_config.hpp"
-#include "instr/instr_interface.hpp"
-#include "mc/mc.h"
#include "simgrid/instr.h"
+#include "src/instr/instr_private.hpp"
#include "src/internal_config.h"
#include "src/kernel/lmm/maxmin.hpp"
+#include "src/mc/mc_config.hpp"
#include "src/mc/mc_replay.hpp"
#include "src/surf/surf_interface.hpp"
#include "surf/surf.hpp"
-#include "xbt/config.h"
#include "xbt/config.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf, "About the configuration of SimGrid");
+static simgrid::config::Flag<bool> cfg_continue_after_help
+ {"help-nostop", "Do not stop the execution when --help is found", false};
-/* 0: beginning of time (config cannot be changed yet);
- * 1: initialized: cfg_set created (config can now be changed);
+/** @brief Allow other libraries to react to the --help flag, too
+ *
+ * When finding --help on the command line, simgrid usually stops right after displaying its help message.
+ * If you are writing a library using simgrid, you may want to display your own help message before everything stops.
+ * If so, just call this function before having simgrid parsing the command line, and you will be given the control
+ * even if the user is asking for help.
+ */
+void sg_config_continue_after_help()
+{
+ cfg_continue_after_help = true;
+}
+
+/* 0: beginning of time (config cannot be changed yet)
+ * 1: initialized: cfg_set created (config can now be changed)
* 2: configured: command line parsed and config part of platform file was
* integrated also, platform construction ongoing or done.
* (Config cannot be changed anymore!)
*/
int _sg_cfg_init_status = 0;
-/* instruct the upper layer (simix or simdag) to exit as soon as possible */
-int _sg_cfg_exit_asap = 0;
-
-#define sg_cfg_exit_early() do { _sg_cfg_exit_asap = 1; return; } while (0)
-
/* Parse the command line, looking for options */
static void sg_config_cmd_line(int *argc, char **argv)
{
- int shall_exit = 0;
+ bool shall_exit = false;
int i;
int j;
+ bool parse_args = true; // Stop parsing the parameters once we found '--'
for (j = i = 1; i < *argc; i++) {
- if (not strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
+ if (not strcmp("--", argv[i])) {
+ parse_args = false;
+ // Remove that '--' from the arguments
+ } else if (parse_args && not strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
char *opt = strchr(argv[i], '=');
opt++;
- xbt_cfg_set_parse(opt);
+ simgrid::config::set_parse(opt);
XBT_DEBUG("Did apply '%s' as config setting", opt);
- } else if (not strcmp(argv[i], "--version")) {
- printf("%s\n", SIMGRID_VERSION_STRING);
- shall_exit = 1;
- } else if (not strcmp(argv[i], "--cfg-help") || not strcmp(argv[i], "--help")) {
- printf("Description of the configuration accepted by this simulator:\n");
- xbt_cfg_help();
- printf(
- "\n"
- "Each of these configurations can be used by adding\n"
- " --cfg=<option name>:<option value>\n"
- "to the command line.\n"
- "\n"
- "For more information, please refer to:\n"
- " --help-aliases for the list of all option aliases.\n"
- " --help-logs and --help-log-categories for the details of logging output.\n"
- " --help-models for a list of all models known by this simulator.\n"
- " --help-tracing for the details of all tracing options known by this simulator.\n"
- " --version to get SimGrid version information.\n"
- "\n"
- );
- shall_exit = 1;
- } else if (not strcmp(argv[i], "--help-aliases")) {
- printf("Here is a list of all deprecated option names, with their replacement.\n");
- xbt_cfg_aliases();
- printf("Please consider using the recent names\n");
- shall_exit = 1;
- } else if (not strcmp(argv[i], "--help-models")) {
+ } else if (parse_args && not strcmp(argv[i], "--version")) {
+ sg_version();
+ shall_exit = true;
+ } else if (parse_args && (not strcmp(argv[i], "--cfg-help") || not strcmp(argv[i], "--help"))) {
+ XBT_HELP("Description of the configuration accepted by this simulator:");
+ simgrid::config::help();
+ XBT_HELP("\n"
+ "Each of these configurations can be used by adding\n"
+ " --cfg=<option name>:<option value>\n"
+ "to the command line. Try passing \"help\" as a value\n"
+ "to get the list of values accepted by a given option.\n"
+ "For example, \"--cfg=plugin:help\" gives you the list of\n"
+ "plugins available in your installation of SimGrid.\n"
+ "\n"
+ "For more information, please refer to:\n"
+ " --help-aliases for the list of all option aliases.\n"
+ " --help-logs and --help-log-categories for the details of logging output.\n"
+ " --help-models for a list of all models known by this simulator.\n"
+ " --help-tracing for the details of all tracing options known by this simulator.\n"
+ " --version to get SimGrid version information.\n");
+ shall_exit = not cfg_continue_after_help;
+ argv[j++] = argv[i]; // Preserve the --help in argv just in case someone else wants to see it
+ } else if (parse_args && not strcmp(argv[i], "--help-aliases")) {
+ XBT_HELP("Here is a list of all deprecated option names, with their replacement.");
+ simgrid::config::show_aliases();
+ XBT_HELP("Please consider using the recent names");
+ shall_exit = true;
+ } else if (parse_args && not strcmp(argv[i], "--help-models")) {
model_help("host", surf_host_model_description);
- printf("\n");
+ XBT_HELP("%s", "");
model_help("CPU", surf_cpu_model_description);
- printf("\n");
+ XBT_HELP("%s", "");
model_help("network", surf_network_model_description);
- printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
- for (int k = 0; surf_optimization_mode_description[k].name; k++)
- printf(" %s: %s\n",
- surf_optimization_mode_description[k].name,
- surf_optimization_mode_description[k].description);
- printf("Both network and CPU models have 'Lazy' as default optimization level\n\n");
- shall_exit = 1;
- } else if (not strcmp(argv[i], "--help-tracing")) {
- TRACE_help (1);
- shall_exit = 1;
+ XBT_HELP("\nLong description of all optimization levels accepted by the models of this simulator:");
+ for (auto const& item : surf_optimization_mode_description)
+ XBT_HELP(" %s: %s", item.name, item.description);
+ XBT_HELP("Both network and CPU models have 'Lazy' as default optimization level\n");
+ shall_exit = true;
+ } else if (parse_args && not strcmp(argv[i], "--help-tracing")) {
+ TRACE_help();
+ shall_exit = true;
} else {
argv[j++] = argv[i];
}
*argc = j;
}
if (shall_exit)
- sg_cfg_exit_early();
+ exit(0);
}
/* callback of the plugin variable */
return;
if (value == "help") {
- model_help("plugin", surf_plugin_description);
- sg_cfg_exit_early();
+ model_help("plugin", *surf_plugin_description);
+ exit(0);
}
- int plugin_id = find_model_description(surf_plugin_description, value);
- surf_plugin_description[plugin_id].model_init_preparse();
+ int plugin_id = find_model_description(*surf_plugin_description, value);
+ (*surf_plugin_description)[plugin_id].model_init_preparse();
}
/* callback of the host/model variable */
if (value == "help") {
model_help("host", surf_host_model_description);
- sg_cfg_exit_early();
+ exit(0);
}
/* Make sure that the model exists */
if (value == "help") {
model_help("CPU", surf_cpu_model_description);
- sg_cfg_exit_early();
+ exit(0);
}
/* New Module missing */
if (value == "help") {
model_help("optimization", surf_optimization_mode_description);
- sg_cfg_exit_early();
+ exit(0);
}
/* New Module missing */
if (value == "help") {
model_help("storage", surf_storage_model_description);
- sg_cfg_exit_early();
+ exit(0);
}
find_model_description(surf_storage_model_description, value);
if (value == "help") {
model_help("network", surf_network_model_description);
- sg_cfg_exit_early();
+ exit(0);
}
/* New Module missing */
find_model_description(surf_network_model_description, value);
}
-#if SIMGRID_HAVE_MC
-extern int _sg_do_model_check_record;
-static void _sg_cfg_cb_model_check_record(const char *name) {
- _sg_do_model_check_record = xbt_cfg_get_boolean(name);
-}
-#endif
-
static void _sg_cfg_cb_contexts_parallel_mode(const std::string& mode_name)
{
if (mode_name == "posix") {
}
/* build description line with possible values */
-static void describe_model(char *result,int resultsize,
- const s_surf_model_description_t model_description[],
- const char *name,
- const char *description)
+static void declare_model_flag(const std::string& name, const std::string& value,
+ const std::function<void(std::string const&)>& callback,
+ const std::vector<surf_model_description_t>& model_description, const std::string& type,
+ const std::string& descr)
{
- result[0] = '\0';
- char *p = result;
- p += snprintf(result,resultsize-1, "%s. Possible values: %s", description,
- model_description[0].name ? model_description[0].name : "n/a");
- for (int i = 1; model_description[i].name; i++)
- p += snprintf(p,resultsize-(p-result)-1, ", %s", model_description[i].name);
- p += snprintf(p,resultsize-(p-result)-1, ".\n (use 'help' as a value to see the long description of each %s)", name);
-
- xbt_assert(p<result+resultsize-1,"Buffer too small to display the model description of %s",name);
+ std::string description = descr + ". Possible values: ";
+ std::string sep = "";
+ for (auto const& item : model_description) {
+ description += sep + item.name;
+ sep = ", ";
+ }
+ description += ".\n (use 'help' as a value to see the long description of each " + type + ")";
+ simgrid::config::declare_flag<std::string>(name, description, value, callback);
}
/* create the config set, register what should be and parse the command line*/
void sg_config_init(int *argc, char **argv)
{
- const int descsize = 1024;
- char description[descsize];
-
/* Create the configuration support */
if (_sg_cfg_init_status != 0) { /* Only create stuff if not already inited */
XBT_WARN("Call to sg_config_init() after initialization ignored");
}
/* Plugins configuration */
- describe_model(description, descsize, surf_plugin_description, "plugin", "The plugins");
- simgrid::config::declareFlag<std::string>("plugin", description, "", &_sg_cfg_cb__plugin);
+ declare_model_flag("plugin", "", &_sg_cfg_cb__plugin, *surf_plugin_description, "plugin", "The plugins");
- describe_model(description, descsize, surf_cpu_model_description, "model", "The model to use for the CPU");
- simgrid::config::declareFlag<std::string>("cpu/model", description, "Cas01", &_sg_cfg_cb__cpu_model);
+ declare_model_flag("cpu/model", "Cas01", &_sg_cfg_cb__cpu_model, surf_cpu_model_description, "model",
+ "The model to use for the CPU");
- describe_model(description, descsize, surf_storage_model_description, "model", "The model to use for the storage");
- simgrid::config::declareFlag<std::string>("storage/model", description, "default", &_sg_cfg_cb__storage_mode);
+ declare_model_flag("storage/model", "default", &_sg_cfg_cb__storage_mode, surf_storage_model_description, "model",
+ "The model to use for the storage");
- describe_model(description, descsize, surf_network_model_description, "model", "The model to use for the network");
- simgrid::config::declareFlag<std::string>("network/model", description, "LV08", &_sg_cfg_cb__network_model);
+ declare_model_flag("network/model", "LV08", &_sg_cfg_cb__network_model, surf_network_model_description, "model",
+ "The model to use for the network");
- describe_model(description, descsize, surf_optimization_mode_description, "optimization mode",
- "The optimization modes to use for the network");
- simgrid::config::declareFlag<std::string>("network/optim", description, "Lazy", &_sg_cfg_cb__optimization_mode);
+ declare_model_flag("network/optim", "Lazy", &_sg_cfg_cb__optimization_mode, surf_optimization_mode_description,
+ "optimization mode", "The optimization modes to use for the network");
- describe_model(description, descsize, surf_host_model_description, "model", "The model to use for the host");
- simgrid::config::declareFlag<std::string>("host/model", description, "default", &_sg_cfg_cb__host_model);
+ declare_model_flag("host/model", "default", &_sg_cfg_cb__host_model, surf_host_model_description, "model",
+ "The model to use for the host");
- simgrid::config::bindFlag(sg_surf_precision, "surf/precision",
- "Numerical precision used when updating simulation times (in seconds)");
+ simgrid::config::bind_flag(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::bind_flag(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", {"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)");
+ simgrid::config::bind_flag(sg_concurrency_limit, "maxmin/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 */
sg_latency_factor = 13.01; // comes from the default LV08 network model
- 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)");
+ simgrid::config::bind_flag(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 = 0.97; // comes from the default LV08 network model
- simgrid::config::bindFlag(
+ simgrid::config::bind_flag(
sg_bandwidth_factor, "network/bandwidth-factor", {"network/bandwidth_factor"},
"Correction factor to apply to the provided bandwidth (default value set by network model)");
sg_weight_S_parameter = 20537; // comes from the default LV08 network model
- simgrid::config::bindFlag(
+ simgrid::config::bind_flag(
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 (not path.empty())
- surf_path.push_back(path);
- });
-
- simgrid::config::declareFlag<bool>("cpu/maxmin-selective-update", "Update the constraint set propagating recursively "
- "to others constraints (off by default unless "
- "optim is set to lazy)",
- "no");
+ simgrid::config::declare_flag<std::string>("path", "Lookup path for inclusions in platform and deployment XML files",
+ "", [](std::string const& path) {
+ if (not path.empty())
+ surf_path.push_back(path);
+ });
+
+ simgrid::config::declare_flag<bool>("cpu/maxmin-selective-update",
+ "Update the constraint set propagating recursively to others constraints "
+ "(off by default unless optim is set to lazy)",
+ "no");
simgrid::config::alias("cpu/maxmin-selective-update", {"cpu/maxmin_selective_update"});
- simgrid::config::declareFlag<bool>("network/maxmin-selective-update", "Update the constraint set propagating "
- "recursively to others constraints (off by "
- "default unless optim is set to lazy)",
- "no");
+ simgrid::config::declare_flag<bool>("network/maxmin-selective-update", "Update the constraint set propagating "
+ "recursively to others constraints (off by "
+ "default unless optim is set to lazy)",
+ "no");
simgrid::config::alias("network/maxmin-selective-update", {"network/maxmin_selective_update"});
- /* Replay (this part is enabled even if MC it disabled) */
- simgrid::config::bindFlag(MC_record_path, "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 formatted 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");
- simgrid::config::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");
- simgrid::config::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)");
- simgrid::config::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)");
- simgrid::config::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");
- simgrid::config::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
- extern bool _sg_do_verbose_exit;
- simgrid::config::bindFlag(_sg_do_verbose_exit, "verbose-exit", "Activate the \"do nothing\" mode in Ctrl-C");
-
- simgrid::config::declareFlag<int>("contexts/stack-size", "Stack size of contexts in KiB", 8 * 1024,
- [](int value) { smx_context_stack_size = value * 1024; });
+ simgrid::config::declare_flag<int>("contexts/stack-size", "Stack size of contexts in KiB (not with threads)",
+ 8 * 1024, [](int value) { smx_context_stack_size = value * 1024; });
simgrid::config::alias("contexts/stack-size", {"contexts/stack_size"});
/* guard size for contexts stacks in memory pages */
#else
int default_guard_size = 1;
#endif
- simgrid::config::declareFlag<int>("contexts/guard-size", "Guard size for contexts stacks in memory pages",
- default_guard_size,
- [](int value) { smx_context_guard_size = value * xbt_pagesize; });
+ simgrid::config::declare_flag<int>("contexts/guard-size", "Guard size for contexts stacks in memory pages",
+ default_guard_size,
+ [](int value) { smx_context_guard_size = value * xbt_pagesize; });
simgrid::config::alias("contexts/guard-size", {"contexts/guard_size"});
- simgrid::config::declareFlag<int>("contexts/nthreads", "Number of parallel threads used to execute user contexts", 1,
- &SIMIX_context_set_nthreads);
+ simgrid::config::declare_flag<int>("contexts/nthreads", "Number of parallel threads used to execute user contexts", 1,
+ &SIMIX_context_set_nthreads);
- simgrid::config::declareFlag<int>("contexts/parallel-threshold",
- "Minimal number of user contexts to be run in parallel (raw contexts only)", 2,
- &SIMIX_context_set_parallel_threshold);
+ simgrid::config::declare_flag<int>("contexts/parallel-threshold",
+ "Minimal number of user contexts to be run in parallel (raw contexts only)", 2,
+ &SIMIX_context_set_parallel_threshold);
simgrid::config::alias("contexts/parallel-threshold", {"contexts/parallel_threshold"});
/* synchronization mode for parallel user contexts */
#if HAVE_FUTEX_H
std::string default_synchro_mode = "futex";
-#else //No futex on mac and posix is unimplememted yet
+#else // No futex on mac and posix is unimplemented yet
std::string default_synchro_mode = "busy_wait";
#endif
- simgrid::config::declareFlag<std::string>("contexts/synchro", "Synchronization mode to use when running contexts in "
- "parallel (either futex, posix or busy_wait)",
- default_synchro_mode, &_sg_cfg_cb_contexts_parallel_mode);
+ simgrid::config::declare_flag<std::string>("contexts/synchro", "Synchronization mode to use when running contexts in "
+ "parallel (either futex, posix or busy_wait)",
+ default_synchro_mode, &_sg_cfg_cb_contexts_parallel_mode);
// For smpi/bw-factor and smpi/lat-factor
// SMPI model can be used without enable_smpi, so keep this out of the ifdef.
- simgrid::config::declareFlag<std::string>("smpi/bw-factor",
- "Bandwidth factors for smpi. Format: "
- "'threshold0:value0;threshold1:value1;...;thresholdN:valueN', "
- "meaning if(size >=thresholdN ) return valueN.",
- "65472:0.940694;15424:0.697866;9376:0.58729;5776:1.08739;3484:0.77493;"
- "1426:0.608902;732:0.341987;257:0.338112;0:0.812084");
+ simgrid::config::declare_flag<std::string>("smpi/bw-factor",
+ "Bandwidth factors for smpi. Format: "
+ "'threshold0:value0;threshold1:value1;...;thresholdN:valueN', "
+ "meaning if(size >=thresholdN ) return valueN.",
+ "65472:0.940694;15424:0.697866;9376:0.58729;5776:1.08739;3484:0.77493;"
+ "1426:0.608902;732:0.341987;257:0.338112;0:0.812084");
simgrid::config::alias("smpi/bw-factor", {"smpi/bw_factor"});
- simgrid::config::declareFlag<std::string>("smpi/lat-factor", "Latency factors for smpi.",
- "65472:11.6436;15424:3.48845;9376:2.59299;5776:2.18796;3484:1.88101;"
- "1426:1.61075;732:1.9503;257:1.95341;0:2.01467");
+ simgrid::config::declare_flag<std::string>("smpi/lat-factor", "Latency factors for smpi.",
+ "65472:11.6436;15424:3.48845;9376:2.59299;5776:2.18796;3484:1.88101;"
+ "1426:1.61075;732:1.9503;257:1.95341;0:2.01467");
simgrid::config::alias("smpi/lat-factor", {"smpi/lat_factor"});
- simgrid::config::declareFlag<std::string>("smpi/IB-penalty-factors",
- "Correction factor to communications using Infiniband model with "
- "contention (default value based on Stampede cluster profiling)",
- "0.965;0.925;1.35");
+ simgrid::config::declare_flag<std::string>("smpi/IB-penalty-factors",
+ "Correction factor to communications using Infiniband model with "
+ "contention (default value based on Stampede cluster profiling)",
+ "0.965;0.925;1.35");
simgrid::config::alias("smpi/IB-penalty-factors", {"smpi/IB_penalty_factors"});
#if HAVE_SMPI
- simgrid::config::declareFlag<double>("smpi/host-speed", "Speed of the host running the simulation (in flop/s). "
- "Used to bench the operations.",
- 20000.0);
+ simgrid::config::declare_flag<double>("smpi/host-speed", "Speed of the host running the simulation (in flop/s). "
+ "Used to bench the operations.",
+ 20000.0, [](const double& val) {
+ xbt_assert(val > 0.0, "Invalid value (%f) for 'smpi/host-speed': it must be positive.", val);
+ });
simgrid::config::alias("smpi/host-speed", {"smpi/running_power", "smpi/running-power"});
- simgrid::config::declareFlag<bool>("smpi/keep-temps", "Whether we should keep the generated temporary files.", false);
+ simgrid::config::declare_flag<bool>("smpi/keep-temps", "Whether we should keep the generated temporary files.",
+ false);
- simgrid::config::declareFlag<bool>("smpi/display-timing", "Whether we should display the timing after simulation.",
- false);
+ simgrid::config::declare_flag<bool>("smpi/display-timing", "Whether we should display the timing after simulation.",
+ false);
simgrid::config::alias("smpi/display-timing", {"smpi/display_timing"});
- simgrid::config::declareFlag<bool>("smpi/simulate-computation",
- "Whether the computational part of the simulated application should be simulated.",
- true);
+ simgrid::config::declare_flag<bool>(
+ "smpi/simulate-computation", "Whether the computational part of the simulated application should be simulated.",
+ true);
simgrid::config::alias("smpi/simulate-computation", {"smpi/simulate_computation"});
- simgrid::config::declareFlag<std::string>(
+ simgrid::config::declare_flag<std::string>(
"smpi/shared-malloc", "Whether SMPI_SHARED_MALLOC is enabled. Disable it for debugging purposes.", "global");
simgrid::config::alias("smpi/shared-malloc", {"smpi/use_shared_malloc", "smpi/use-shared-malloc"});
- simgrid::config::declareFlag<double>("smpi/shared-malloc-blocksize",
- "Size of the bogus file which will be created for global shared allocations",
- 1UL << 20);
- simgrid::config::declareFlag<std::string>("smpi/shared-malloc-hugepage",
- "Path to a mounted hugetlbfs, to use huge pages with shared malloc.", "");
+ simgrid::config::declare_flag<double>("smpi/shared-malloc-blocksize",
+ "Size of the bogus file which will be created for global shared allocations",
+ 1UL << 20);
+ simgrid::config::declare_flag<std::string>("smpi/shared-malloc-hugepage",
+ "Path to a mounted hugetlbfs, to use huge pages with shared malloc.", "");
- simgrid::config::declareFlag<double>(
+ simgrid::config::declare_flag<double>(
"smpi/cpu-threshold", "Minimal computation time (in seconds) not discarded, or -1 for infinity.", 1e-6);
simgrid::config::alias("smpi/cpu-threshold", {"smpi/cpu_threshold"});
- simgrid::config::declareFlag<int>(
+ simgrid::config::declare_flag<int>(
"smpi/async-small-thresh",
"Maximal size of messages that are to be sent asynchronously, without waiting for the receiver", 0);
simgrid::config::alias("smpi/async-small-thresh", {"smpi/async_small_thres", "smpi/async_small_thresh"});
- simgrid::config::declareFlag<bool>("smpi/trace-call-location",
- "Should filename and linenumber of MPI calls be traced?", false);
+ simgrid::config::declare_flag<bool>("smpi/trace-call-location",
+ "Should filename and linenumber of MPI calls be traced?", false);
- simgrid::config::declareFlag<int>(
+ simgrid::config::declare_flag<int>(
"smpi/send-is-detached-thresh",
"Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend", 65536);
simgrid::config::alias("smpi/send-is-detached-thresh",
if (default_privatization == nullptr)
default_privatization = "no";
- simgrid::config::declareFlag<std::string>(
+ simgrid::config::declare_flag<std::string>(
"smpi/privatization", "How we should privatize global variable at runtime (no, yes, mmap, dlopen).",
default_privatization);
simgrid::config::alias("smpi/privatization", {"smpi/privatize_global_variables", "smpi/privatize-global-variables"});
- simgrid::config::declareFlag<bool>("smpi/grow-injected-times",
- "Whether we want to make the injected time in MPI_Iprobe and MPI_Test grow, to "
- "allow faster simulation. This can make simulation less precise, though.",
- true);
+ simgrid::config::declare_flag<std::string>(
+ "smpi/privatize-libs", "Add libraries (; separated) to privatize (libgfortran for example). You need to provide the full names of the files (libgfortran.so.4), or its full path", "");
+
+ simgrid::config::declare_flag<bool>("smpi/grow-injected-times",
+ "Whether we want to make the injected time in MPI_Iprobe and MPI_Test grow, to "
+ "allow faster simulation. This can make simulation less precise, though.",
+ true);
#if HAVE_PAPI
- simgrid::config::declareFlag<std::string>("smpi/papi-events",
- "This switch enables tracking the specified counters with PAPI", "");
+ simgrid::config::declare_flag<std::string>("smpi/papi-events",
+ "This switch enables tracking the specified counters with PAPI", "");
#endif
- simgrid::config::declareFlag<std::string>("smpi/comp-adjustment-file",
- "A file containing speedups or slowdowns for some parts of the code.", "");
- simgrid::config::declareFlag<std::string>(
+ simgrid::config::declare_flag<std::string>("smpi/comp-adjustment-file",
+ "A file containing speedups or slowdowns for some parts of the code.", "");
+ simgrid::config::declare_flag<std::string>(
"smpi/os", "Small messages timings (MPI_Send minimum time for small messages)", "0:0:0:0:0");
- simgrid::config::declareFlag<std::string>(
+ simgrid::config::declare_flag<std::string>(
"smpi/ois", "Small messages timings (MPI_Isend minimum time for small messages)", "0:0:0:0:0");
- simgrid::config::declareFlag<std::string>(
+ simgrid::config::declare_flag<std::string>(
"smpi/or", "Small messages timings (MPI_Recv minimum time for small messages)", "0:0:0:0:0");
- simgrid::config::declareFlag<double>("smpi/iprobe-cpu-usage",
- "Maximum usage of CPUs by MPI_Iprobe() calls. We've observed that MPI_Iprobes "
- "consume significantly less power than the maximum of a specific application. "
- "This value is then (Iprobe_Usage/Max_Application_Usage).",
- 1.0);
+ simgrid::config::declare_flag<double>("smpi/iprobe-cpu-usage",
+ "Maximum usage of CPUs by MPI_Iprobe() calls. We've observed that MPI_Iprobes "
+ "consume significantly less power than the maximum of a specific application. "
+ "This value is then (Iprobe_Usage/Max_Application_Usage).",
+ 1.0);
- simgrid::config::declareFlag<std::string>("smpi/coll-selector", "Which collective selector to use", "default");
+ simgrid::config::declare_flag<std::string>("smpi/coll-selector", "Which collective selector to use", "default");
simgrid::config::alias("smpi/coll-selector", {"smpi/coll_selector"});
- simgrid::config::declareFlag<std::string>("smpi/gather", "Which collective to use for gather", "");
- simgrid::config::declareFlag<std::string>("smpi/allgather", "Which collective to use for allgather", "");
- simgrid::config::declareFlag<std::string>("smpi/barrier", "Which collective to use for barrier", "");
- simgrid::config::declareFlag<std::string>("smpi/reduce_scatter", "Which collective to use for reduce_scatter", "");
+ simgrid::config::declare_flag<std::string>("smpi/gather", "Which collective to use for gather", "");
+ simgrid::config::declare_flag<std::string>("smpi/allgather", "Which collective to use for allgather", "");
+ simgrid::config::declare_flag<std::string>("smpi/barrier", "Which collective to use for barrier", "");
+ simgrid::config::declare_flag<std::string>("smpi/reduce_scatter", "Which collective to use for reduce_scatter", "");
simgrid::config::alias("smpi/reduce_scatter", {"smpi/reduce-scatter"});
- simgrid::config::declareFlag<std::string>("smpi/scatter", "Which collective to use for scatter", "");
- simgrid::config::declareFlag<std::string>("smpi/allgatherv", "Which collective to use for allgatherv", "");
- simgrid::config::declareFlag<std::string>("smpi/allreduce", "Which collective to use for allreduce", "");
- simgrid::config::declareFlag<std::string>("smpi/alltoall", "Which collective to use for alltoall", "");
- simgrid::config::declareFlag<std::string>("smpi/alltoallv", "Which collective to use for alltoallv", "");
- simgrid::config::declareFlag<std::string>("smpi/bcast", "Which collective to use for bcast", "");
- simgrid::config::declareFlag<std::string>("smpi/reduce", "Which collective to use for reduce", "");
+ simgrid::config::declare_flag<std::string>("smpi/scatter", "Which collective to use for scatter", "");
+ simgrid::config::declare_flag<std::string>("smpi/allgatherv", "Which collective to use for allgatherv", "");
+ simgrid::config::declare_flag<std::string>("smpi/allreduce", "Which collective to use for allreduce", "");
+ simgrid::config::declare_flag<std::string>("smpi/alltoall", "Which collective to use for alltoall", "");
+ simgrid::config::declare_flag<std::string>("smpi/alltoallv", "Which collective to use for alltoallv", "");
+ simgrid::config::declare_flag<std::string>("smpi/bcast", "Which collective to use for bcast", "");
+ simgrid::config::declare_flag<std::string>("smpi/reduce", "Which collective to use for reduce", "");
#endif // HAVE_SMPI
- /* Storage */
-
- sg_storage_max_file_descriptors = 1024;
- simgrid::config::bindFlag(sg_storage_max_file_descriptors, "storage/max_file_descriptors",
- "Maximum number of concurrently opened files per host. Default is 1024");
-
/* Others */
- simgrid::config::declareFlag<bool>(
+ simgrid::config::declare_flag<bool>(
"exception/cutpath", "Whether to cut all path information from call traces, used e.g. in exceptions.", false);
- extern bool _sg_do_clean_atexit;
- simgrid::config::bindFlag(_sg_do_clean_atexit, "clean-atexit", {"clean_atexit"},
- "Whether to cleanup SimGrid at exit. Disable it if your code segfaults after its end.");
-
if (surf_path.empty())
- xbt_cfg_setdefault_string("path", "./");
+ simgrid::config::set_default<std::string>("path", "./");
_sg_cfg_init_status = 1;
void sg_config_finalize()
{
- if (not _sg_cfg_init_status)
- return; /* Not initialized yet. Nothing to do */
-
- xbt_cfg_free(&simgrid_config);
+ simgrid::config::finalize();
_sg_cfg_init_status = 0;
}
