-/* Copyright (c) 2009-2020. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2009-2022. 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. */
/* sg_config: configuration infrastructure for the simulation world */
+#include <simgrid/instr.h>
+#include <simgrid/version.h>
+#include <xbt/config.hpp>
+
#include "simgrid/sg_config.hpp"
-#include "simgrid/instr.h"
-#include "simgrid/version.h"
+#include "src/include/xbt/mmalloc.h"
#include "src/instr/instr_private.hpp"
#include "src/internal_config.h"
+#include "src/kernel/context/Context.hpp"
#include "src/kernel/lmm/maxmin.hpp"
#include "src/mc/mc_config.hpp"
#include "src/mc/mc_replay.hpp"
#include "src/smpi/include/smpi_config.hpp"
#include "src/surf/surf_interface.hpp"
-#include "surf/surf.hpp"
-#include "xbt/config.hpp"
+
+#include <string_view>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf, "About the configuration of SimGrid");
return;
if (value == "help") {
- model_help("plugin", *surf_plugin_description);
+ 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();
+ const auto* plugin = find_model_description(surf_plugin_description(), value);
+ plugin->model_init_preparse();
}
/* callback of the host/model variable */
find_model_description(surf_disk_model_description, value);
}
-/* callback of the cpu/model variable */
-static void _sg_cfg_cb__storage_model(const std::string& value)
-{
- xbt_assert(_sg_cfg_init_status < 2, "Cannot change the model after the initialization");
-
- if (value == "help") {
- model_help("storage", surf_storage_model_description);
- exit(0);
- }
-
- find_model_description(surf_storage_model_description, value);
-}
-
/* callback of the network_model variable */
static void _sg_cfg_cb__network_model(const std::string& value)
{
find_model_description(surf_network_model_description, value);
}
-static void _sg_cfg_cb_contexts_parallel_mode(const std::string& mode_name)
+static void _sg_cfg_cb_contexts_parallel_mode(std::string_view mode_name)
{
if (mode_name == "posix") {
- SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
+ simgrid::kernel::context::set_parallel_mode(XBT_PARMAP_POSIX);
} else if (mode_name == "futex") {
- SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
+ simgrid::kernel::context::set_parallel_mode(XBT_PARMAP_FUTEX);
} else if (mode_name == "busy_wait") {
- SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
+ simgrid::kernel::context::set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
} else {
xbt_die("Command line setting of the parallel synchronization mode should "
"be one of \"posix\", \"futex\" or \"busy_wait\"");
}
/* Plugins configuration */
- declare_model_flag("plugin", "", &_sg_cfg_cb__plugin, *surf_plugin_description, "plugin", "The plugins");
+ declare_model_flag("plugin", "", &_sg_cfg_cb__plugin, surf_plugin_description(), "plugin", "The plugins");
declare_model_flag("cpu/model", "Cas01", &_sg_cfg_cb__cpu_model, surf_cpu_model_description, "model",
"The model to use for the CPU");
declare_model_flag("disk/model", "default", &_sg_cfg_cb__disk_model, surf_disk_model_description, "model",
"The model to use for the disk");
- declare_model_flag("storage/model", "default", &_sg_cfg_cb__storage_model, surf_storage_model_description, "model",
- "The model to use for the storage");
-
declare_model_flag("network/model", "LV08", &_sg_cfg_cb__network_model, surf_network_model_description, "model",
"The model to use for the network");
simgrid::config::bind_flag(sg_maxmin_precision, "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", {"maxmin/concurrency_limit"},
+ 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 */
sg_latency_factor = 13.01; // comes from the default LV08 network model
- simgrid::config::bind_flag(sg_latency_factor, "network/latency-factor", {"network/latency_factor"},
+ simgrid::config::bind_flag(sg_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::bind_flag(
- sg_bandwidth_factor, "network/bandwidth-factor", {"network/bandwidth_factor"},
+ sg_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::bind_flag(
- sg_weight_S_parameter, "network/weight-S", {"network/weight_S"},
+ sg_weight_S_parameter, "network/weight-S",
"Correction factor to apply to the weight of competing streams (default value set by network model)");
- simgrid::config::declare_flag<double>("network/loopback-lat",
- "For network models with an implicit loopback link (L07, CM02, LV08), "
- "latency of the loopback link. 0 by default",
- 0);
+ 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};
- simgrid::config::declare_flag<double>("network/loopback-bw",
- "For network models with an implicit loopback link (L07, CM02, LV08), "
- "bandwidth of the loopback link. 10GBps by default",
- 10e9);
+ 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 */
- 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::declare_flag<bool>("network/maxmin-selective-update", "Update the constraint set propagating "
+ 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())
+ surf_path.push_back(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)",
- "no");
- simgrid::config::alias("network/maxmin-selective-update", {"network/maxmin_selective_update"});
+ false};
- 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"});
+ 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::stack_size = value * 1024; }};
/* guard size for contexts stacks in memory pages */
#if defined(_WIN32) || (PTH_STACKGROWTH != -1)
#else
int default_guard_size = 1;
#endif
- 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::declare_flag<int>("contexts/nthreads", "Number of parallel threads used to execute user contexts", 1,
- &SIMIX_context_set_nthreads);
+ static simgrid::config::Flag<int> cfg_context_guard_size{
+ "contexts/guard-size", "Guard size for contexts stacks in memory pages", default_guard_size,
+ [](int value) { simgrid::kernel::context::guard_size = value * xbt_pagesize; }};
+
+ static simgrid::config::Flag<int> cfg_context_nthreads{
+ "contexts/nthreads", "Number of parallel threads used to execute user contexts", 1, [](int nthreads) {
+#if HAVE_MMALLOC
+ xbt_assert(
+ nthreads == 1 || !malloc_use_mmalloc(),
+ "Parallel simulation is forbidden in the verified program, as there is no protection against race "
+ "conditions in mmalloc itself. Please don't be so greedy and show some mercy for our implementation.");
+#endif
+ simgrid::kernel::context::set_nthreads(nthreads);
+ }};
/* synchronization mode for parallel user contexts */
#if HAVE_FUTEX_H
#else // No futex on mac and posix is unimplemented yet
std::string default_synchro_mode = "busy_wait";
#endif
- 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);
+ static simgrid::config::Flag<std::string> cfg_context_synchro{"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.
"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::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::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"});
+ static simgrid::config::Flag<std::string> cfg_smpi_IB_penalty_factors{
+ "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"};
/* Others */
- simgrid::config::declare_flag<bool>(
- "exception/cutpath", "Whether to cut all path information from call traces, used e.g. in exceptions.", false);
+ static simgrid::config::Flag<bool> cfg_execution_cutpath{
+ "exception/cutpath", "Whether to cut all path information from call traces, used e.g. in exceptions.", false};
if (surf_path.empty())
simgrid::config::set_default<std::string>("path", "./");
sg_config_cmd_line(argc, argv);
- xbt_mallocator_initialization_is_done(SIMIX_context_is_parallel());
+ xbt_mallocator_initialization_is_done(simgrid::kernel::context::is_parallel());
}
void sg_config_finalize()
