-/* Copyright (c) 2009-2010, 2012-2015. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2009-2018. 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 */
+/* sg_config: configuration infrastructure for the simulation world */
-#include "xbt/misc.h"
-#include "xbt/config.h"
-#include "xbt/config.hpp"
-#include "xbt/log.h"
-#include "xbt/mallocator.h"
-#include "xbt/str.h"
-#include "xbt/lib.h"
-#include "xbt/sysdep.h"
-#include "surf/surf.h"
-#include "surf/maxmin.h"
-#include "instr/instr_interface.h"
-#include "simgrid/simix.h"
-#include "simgrid/sg_config.h"
-#include "simgrid_config.h" /* what was compiled in? */
+#include "simgrid/sg_config.hpp"
+#include "instr/instr_interface.hpp"
#include "mc/mc.h"
#include "simgrid/instr.h"
-#include "src/mc/mc_replay.h"
+#include "src/internal_config.h"
+#include "src/kernel/lmm/maxmin.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");
{
xbt_assert(_sg_cfg_init_status < 2, "Cannot load a plugin after the initialization");
- char *val = xbt_cfg_get_string(name);
- if (val==nullptr || val[0] == '\0')
+ std::string val = xbt_cfg_get_string(name);
+ if (val.empty())
return;
- if (not strcmp(val, "help")) {
+ if (val == "help") {
model_help("plugin", surf_plugin_description);
sg_cfg_exit_early();
}
{
xbt_assert(_sg_cfg_init_status < 2, "Cannot change the model after the initialization");
- char *val = xbt_cfg_get_string(name);
- if (not strcmp(val, "help")) {
+ std::string val = xbt_cfg_get_string(name);
+ if (val == "help") {
model_help("host", surf_host_model_description);
sg_cfg_exit_early();
}
{
xbt_assert(_sg_cfg_init_status < 2, "Cannot change the model after the initialization");
- char *val = xbt_cfg_get_string(name);
- if (not strcmp(val, "help")) {
+ std::string val = xbt_cfg_get_string(name);
+ if (val == "help") {
model_help("CPU", surf_cpu_model_description);
sg_cfg_exit_early();
}
{
xbt_assert(_sg_cfg_init_status < 2, "Cannot change the model after the initialization");
- char *val = xbt_cfg_get_string(name);
- if (not strcmp(val, "help")) {
+ std::string val = xbt_cfg_get_string(name);
+ if (val == "help") {
model_help("optimization", surf_optimization_mode_description);
sg_cfg_exit_early();
}
{
xbt_assert(_sg_cfg_init_status < 2, "Cannot change the model after the initialization");
- char *val = xbt_cfg_get_string(name);
- if (not strcmp(val, "help")) {
+ std::string val = xbt_cfg_get_string(name);
+ if (val == "help") {
model_help("storage", surf_storage_model_description);
sg_cfg_exit_early();
}
{
xbt_assert(_sg_cfg_init_status < 2, "Cannot change the model after the initialization");
- char *val = xbt_cfg_get_string(name);
- if (not strcmp(val, "help")) {
+ std::string val = xbt_cfg_get_string(name);
+ if (val == "help") {
model_help("network", surf_network_model_description);
sg_cfg_exit_early();
}
static void _sg_cfg_cb_model_check_replay(const char *name) {
MC_record_path = xbt_cfg_get_string(name);
- if (MC_record_path[0] == '\0')
- MC_record_path = nullptr;
}
#if SIMGRID_HAVE_MC
static void _sg_cfg_cb_contexts_parallel_mode(const char *name)
{
- const char* mode_name = xbt_cfg_get_string(name);
- if (not strcmp(mode_name, "posix")) {
+ std::string mode_name = xbt_cfg_get_string(name);
+ if (mode_name == "posix") {
SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
- } else if (not strcmp(mode_name, "futex")) {
+ } else if (mode_name == "futex") {
SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
- } else if (not strcmp(mode_name, "busy_wait")) {
+ } else if (mode_name == "busy_wait") {
SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
- }
- else {
+ } else {
xbt_die("Command line setting of the parallel synchronization mode should "
"be one of \"posix\", \"futex\" or \"busy_wait\"");
}
}
-static void _sg_cfg_cb__surf_network_crosstraffic(const char *name)
-{
- sg_network_crosstraffic = xbt_cfg_get_boolean(name);
-}
-
/* build description line with possible values */
static void describe_model(char *result,int resultsize,
const s_surf_model_description_t model_description[],
char description[descsize];
/* Create the configuration support */
- 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);
+ if (_sg_cfg_init_status != 0) { /* Only create stuff if not already inited */
+ XBT_WARN("Call to sg_config_init() after initialization ignored");
+ return;
+ }
- 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);
+ /* Plugins configuration */
+ describe_model(description, descsize, surf_plugin_description, "plugin", "The plugins");
+ xbt_cfg_register_string("plugin", "", &_sg_cfg_cb__plugin, 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_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 network");
- xbt_cfg_register_string("network/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_host_model_description, "model", "The model to use for the host");
- xbt_cfg_register_string("host/model", "default", &_sg_cfg_cb__host_model, 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);
- 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)");
+ 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);
- simgrid::config::bindFlag(sg_surf_precision, "surf/precision",
- "Numerical precision used when updating simulation times (in seconds)");
+ 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);
- 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_surf_precision, "surf/precision",
+ "Numerical precision used when updating simulation times (in seconds)");
- 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");
+ simgrid::config::bindFlag(sg_maxmin_precision, "maxmin/precision",
+ "Numerical precision used when computing resource sharing (in flops/sec or bytes/sec)");
- /* The parameters of network models */
+ 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");
- // 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");
+ /* The parameters of network models */
- 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_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)");
- sg_bandwidth_factor = 1.0;
- simgrid::config::bindFlag(sg_bandwidth_factor, { "network/bandwidth-factor", "network/bandwidth_factor" },
+ sg_bandwidth_factor = 0.97; // comes from the default LV08 network model
+ 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" },
+ sg_weight_S_parameter = 20537; // comes from the default LV08 network model
+ 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)");
+ /* 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 unless 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 unless 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/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_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");
xbt_cfg_register_alias("model-check/communications-determinism","model-check/communications_determinism");
"Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)");
#endif
- xbt_cfg_register_boolean("network/crosstraffic", "yes", _sg_cfg_cb__surf_network_crosstraffic,
- "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)");
-
- //For smpi/bw_factor and smpi/lat_factor
+ // For smpi/bw-factor and smpi/lat-factor
// SMPI model can be used without enable_smpi, so keep this out of the ifdef.
xbt_cfg_register_string("smpi/bw-factor",
"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", nullptr,
xbt_cfg_register_string("smpi/lat-factor",
"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", nullptr, "Latency factors for smpi.");
xbt_cfg_register_alias("smpi/lat-factor","smpi/lat_factor");
-
+
xbt_cfg_register_string("smpi/IB-penalty-factors", "0.965;0.925;1.35", nullptr,
"Correction factor to communications using Infiniband model with contention (default value based on Stampede cluster profiling)");
xbt_cfg_register_alias("smpi/IB-penalty-factors","smpi/IB_penalty_factors");
-
+
#if HAVE_SMPI
xbt_cfg_register_double("smpi/host-speed", 20000.0, nullptr, "Speed of the host running the simulation (in flop/s). Used to bench the operations.");
xbt_cfg_register_alias("smpi/host-speed","smpi/running_power");
"Whether to cleanup SimGrid at exit. Disable it if your code segfaults after its end.");
xbt_cfg_register_alias("clean-atexit","clean_atexit");
- if (surf_path.empty()) {
- /* retrieves the current directory of the current process */
- const char *initial_path = __surf_get_initial_path();
- xbt_assert((initial_path), "__surf_get_initial_path() failed! Can't resolve current Windows directory");
-
- xbt_cfg_setdefault_string("path", initial_path);
- }
+ if (surf_path.empty())
+ xbt_cfg_setdefault_string("path", "./");
_sg_cfg_init_status = 1;
sg_config_cmd_line(argc, argv);
xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
- } else {
- XBT_WARN("Call to sg_config_init() after initialization ignored");
- }
}
void sg_config_finalize()
