-/* Copyright (c) 2009-2019. 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 "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"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf, "About the configuration of SimGrid");
static void sg_config_cmd_line(int *argc, char **argv)
{
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++) {
+ int j = 1;
+ for (int i = j; i < *argc; i++) {
if (not strcmp("--", argv[i])) {
parse_args = false;
// Remove that '--' from the arguments
XBT_HELP("\n"
"Each of these configurations can be used by adding\n"
" --cfg=<option name>:<option value>\n"
- "to the command line.\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"
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_optimization_mode_description, value);
}
-/* callback of the cpu/model variable */
-static void _sg_cfg_cb__storage_mode(const std::string& value)
+static void _sg_cfg_cb__disk_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);
+ model_help("disk", surf_disk_model_description);
exit(0);
}
- find_model_description(surf_storage_model_description, value);
+ find_model_description(surf_disk_model_description, value);
}
/* callback of the network_model variable */
static void _sg_cfg_cb_contexts_parallel_mode(const std::string& 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("storage/model", "default", &_sg_cfg_cb__storage_mode, surf_storage_model_description, "model",
- "The model to use for the storage");
+ 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("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)");
+ simgrid::config::bind_flag(sg_bmf_max_iterations, "bmf/max-iterations",
+ "Maximum number of steps to be performed while searching for a BMF allocation");
+
/* 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);
+
+ 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);
+
/* Inclusion path */
simgrid::config::declare_flag<std::string>("path", "Lookup path for inclusions in platform and deployment XML files",
"", [](std::string const& path) {
"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 "
"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"});
-
- extern bool _sg_do_verbose_exit;
- simgrid::config::bind_flag(_sg_do_verbose_exit, "verbose-exit", "Activate the \"do nothing\" mode in Ctrl-C");
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"});
+ 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)
#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"});
+ [](int value) { simgrid::kernel::context::guard_size = value * xbt_pagesize; });
simgrid::config::declare_flag<int>("contexts/nthreads", "Number of parallel threads used to execute user contexts", 1,
- &SIMIX_context_set_nthreads);
-
- 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"});
+ &simgrid::kernel::context::set_nthreads);
/* synchronization mode for parallel user contexts */
#if HAVE_FUTEX_H
"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"});
-
-#if HAVE_SMPI
- 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);
- simgrid::config::alias("smpi/host-speed", {"smpi/running_power", "smpi/running-power"});
-
- simgrid::config::declare_flag<bool>("smpi/keep-temps", "Whether we should keep the generated temporary files.",
- 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::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::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::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::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::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::declare_flag<bool>("smpi/trace-call-location",
- "Should filename and linenumber of MPI calls be traced?", false);
-
- 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",
- {"smpi/send_is_detached_thres", "smpi/send_is_detached_thresh"});
-
- const char* default_privatization = std::getenv("SMPI_PRIVATIZATION");
- if (default_privatization == nullptr)
- default_privatization = "no";
-
- 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::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::declare_flag<std::string>("smpi/papi-events",
- "This switch enables tracking the specified counters with PAPI", "");
-#endif
- 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::declare_flag<std::string>(
- "smpi/ois", "Small messages timings (MPI_Isend minimum time for small messages)", "0:0:0:0:0");
- 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::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::declare_flag<std::string>("smpi/coll-selector", "Which collective selector to use", "default");
- simgrid::config::alias("smpi/coll-selector", {"smpi/coll_selector"});
- 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::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
-
/* Others */
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::bind_flag(_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())
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()
