#include <xbt/config.hpp>
#include "simgrid/sg_config.hpp"
+#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/kernel/resource/NetworkModel.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 <string_view>
+
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf, "About the configuration of SimGrid");
static simgrid::config::Flag<bool> cfg_continue_after_help
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") {
simgrid::kernel::context::set_parallel_mode(XBT_PARMAP_POSIX);
"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",
- "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",
- "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",
- "Correction factor to apply to the weight of competing streams (default value set by network model)");
-
- simgrid::config::Flag<double> _sg_network_loopback_latency{
+ 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::Flag<double> _sg_network_loopback_bandwidth{
+ 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::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<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);
+ }};
- simgrid::config::Flag<bool> cfg_cpu_maxmin_selective_update{
+ 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};
- 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<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};
- simgrid::config::Flag<int> cfg_context_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; }};
#else
int default_guard_size = 1;
#endif
- simgrid::config::Flag<int> cfg_context_guard_size{
+ 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; }};
- simgrid::config::Flag<int> cfg_context_nthreads{"contexts/nthreads",
- "Number of parallel threads used to execute user contexts", 1,
- &simgrid::kernel::context::set_nthreads};
+
+ 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 || not 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::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};
+ 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.
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::Flag<std::string> cfg_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::Flag<bool> cfg_execution_cutpath{
+ 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())
