/* Copyright (c) 2009-2010, 2012-2015. 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 "xbt/misc.h"
#include "xbt/config.h"
#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? */
#if HAVE_SMPI
#include "smpi/smpi_interface.h"
#endif
#include "mc/mc.h"
#include "simgrid/instr.h"
#include "src/mc/mc_replay.h"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf, "About the configuration of SimGrid");
/* 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;
int i, j;
char *opt;
for (j = i = 1; i < *argc; i++) {
if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
opt = strchr(argv[i], '=');
opt++;
xbt_cfg_set_parse(opt);
XBT_DEBUG("Did apply '%s' as config setting", opt);
} else if (!strcmp(argv[i], "--version")) {
printf("%s\n", SIMGRID_VERSION_STRING);
shall_exit = 1;
} else if (!strcmp(argv[i], "--cfg-help") || !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=: \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 (!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 (!strcmp(argv[i], "--help-models")) {
int k;
model_help("host", surf_host_model_description);
printf("\n");
model_help("CPU", surf_cpu_model_description);
printf("\n");
model_help("network", surf_network_model_description);
printf("\nLong description of all optimization levels accepted by the models of this simulator:\n");
for (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 (!strcmp(argv[i], "--help-tracing")) {
TRACE_help (1);
shall_exit = 1;
} else {
argv[j++] = argv[i];
}
}
if (j < *argc) {
argv[j] = NULL;
*argc = j;
}
if (shall_exit)
sg_cfg_exit_early();
}
/* callback of the plugin variable */
static void _sg_cfg_cb__plugin(const char *name, int pos)
{
xbt_assert(_sg_cfg_init_status < 2, "Cannot load a plugin after the initialization");
char *val = xbt_cfg_get_string(name);
if (val==nullptr)
return;
if (!strcmp(val, "help")) {
model_help("plugin", surf_plugin_description);
sg_cfg_exit_early();
}
/* New Module missing */
int plugin_id = find_model_description(surf_plugin_description, val);
surf_plugin_description[plugin_id].model_init_preparse();
}
/* callback of the host/model variable */
static void _sg_cfg_cb__host_model(const char *name, int pos)
{
xbt_assert(_sg_cfg_init_status < 2, "Cannot change the model after the initialization");
char *val = xbt_cfg_get_string(name);
if (!strcmp(val, "help")) {
model_help("host", surf_host_model_description);
sg_cfg_exit_early();
}
/* Make sure that the model exists */
find_model_description(surf_host_model_description, val);
}
/* callback of the vm/model variable */
static void _sg_cfg_cb__vm_model(const char *name, int pos)
{
xbt_assert(_sg_cfg_init_status < 2, "Cannot change the model after the initialization");
char *val = xbt_cfg_get_string(name);
if (!strcmp(val, "help")) {
model_help("vm", surf_vm_model_description);
sg_cfg_exit_early();
}
/* Make sure that the model exists */
find_model_description(surf_vm_model_description, val);
}
/* callback of the cpu/model variable */
static void _sg_cfg_cb__cpu_model(const char *name, int pos)
{
xbt_assert(_sg_cfg_init_status < 2, "Cannot change the model after the initialization");
char *val = xbt_cfg_get_string(name);
if (!strcmp(val, "help")) {
model_help("CPU", surf_cpu_model_description);
sg_cfg_exit_early();
}
/* New Module missing */
find_model_description(surf_cpu_model_description, val);
}
/* callback of the cpu/model variable */
static void _sg_cfg_cb__optimization_mode(const char *name, int pos)
{
char *val;
xbt_assert(_sg_cfg_init_status < 2,
"Cannot change the model after the initialization");
val = xbt_cfg_get_string(name);
if (!strcmp(val, "help")) {
model_help("optimization", surf_optimization_mode_description);
sg_cfg_exit_early();
}
/* New Module missing */
find_model_description(surf_optimization_mode_description, val);
}
/* callback of the cpu/model variable */
static void _sg_cfg_cb__storage_mode(const char *name, int pos)
{
char *val;
xbt_assert(_sg_cfg_init_status < 2,
"Cannot change the model after the initialization");
val = xbt_cfg_get_string(name);
if (!strcmp(val, "help")) {
model_help("storage", surf_storage_model_description);
sg_cfg_exit_early();
}
/* New Module missing */
find_model_description(surf_storage_model_description, val);
}
/* callback of the network_model variable */
static void _sg_cfg_cb__network_model(const char *name, int pos)
{
char *val;
xbt_assert(_sg_cfg_init_status < 2,
"Cannot change the model after the initialization");
val = xbt_cfg_get_string(name);
if (!strcmp(val, "help")) {
model_help("network", surf_network_model_description);
sg_cfg_exit_early();
}
/* New Module missing */
find_model_description(surf_network_model_description, val);
}
/* callbacks of the network models values */
static void _sg_cfg_cb__tcp_gamma(const char *name, int pos)
{
sg_tcp_gamma = xbt_cfg_get_double(name);
}
static void _sg_cfg_cb__maxmin_precision(const char* name, int pos)
{
sg_maxmin_precision = xbt_cfg_get_double(name);
}
static void _sg_cfg_cb__surf_precision(const char* name, int pos)
{
sg_surf_precision = xbt_cfg_get_double(name);
}
static void _sg_cfg_cb__sender_gap(const char* name, int pos)
{
sg_sender_gap = xbt_cfg_get_double(name);
}
static void _sg_cfg_cb__latency_factor(const char *name, int pos)
{
sg_latency_factor = xbt_cfg_get_double(name);
}
static void _sg_cfg_cb__bandwidth_factor(const char *name, int pos)
{
sg_bandwidth_factor = xbt_cfg_get_double(name);
}
static void _sg_cfg_cb__weight_S(const char *name, int pos)
{
sg_weight_S_parameter = xbt_cfg_get_double(name);
}
#if HAVE_SMPI
/* callback of the mpi collectives: simply check that this is a valid name. It will be picked up in smpi_global.cpp */
static void _check_coll(const char *category,
s_mpi_coll_description_t * table,
const char *name)
{
xbt_assert(_sg_cfg_init_status < 2, "Cannot change the collective algorithm after the initialization");
char *val = xbt_cfg_get_string(name);
if (val && !strcmp(val, "help")) {
coll_help(category, table);
sg_cfg_exit_early();
}
find_coll_description(table, val, category);
}
static void _check_coll_gather(const char *name, int pos){
_check_coll("gather", mpi_coll_gather_description, name);
}
static void _check_coll_allgather(const char *name, int pos){
_check_coll("allgather", mpi_coll_allgather_description, name);
}
static void _check_coll_allgatherv(const char *name, int pos){
_check_coll("allgatherv", mpi_coll_allgatherv_description, name);
}
static void _check_coll_allreduce(const char *name, int pos)
{
_check_coll("allreduce", mpi_coll_allreduce_description, name);
}
static void _check_coll_alltoall(const char *name, int pos)
{
_check_coll("alltoall", mpi_coll_alltoall_description, name);
}
static void _check_coll_alltoallv(const char *name, int pos)
{
_check_coll("alltoallv", mpi_coll_alltoallv_description, name);
}
static void _check_coll_bcast(const char *name, int pos)
{
_check_coll("bcast", mpi_coll_bcast_description, name);
}
static void _check_coll_reduce(const char *name, int pos)
{
_check_coll("reduce", mpi_coll_reduce_description, name);
}
static void _check_coll_reduce_scatter(const char *name, int pos){
_check_coll("reduce_scatter", mpi_coll_reduce_scatter_description, name);
}
static void _check_coll_scatter(const char *name, int pos){
_check_coll("scatter", mpi_coll_scatter_description, name);
}
static void _check_coll_barrier(const char *name, int pos){
_check_coll("barrier", mpi_coll_barrier_description, name);
}
static void _sg_cfg_cb__wtime_sleep(const char *name, int pos){
smpi_wtime_sleep = xbt_cfg_get_double(name);
}
static void _sg_cfg_cb__iprobe_sleep(const char *name, int pos){
smpi_iprobe_sleep = xbt_cfg_get_double(name);
}
static void _sg_cfg_cb__test_sleep(const char *name, int pos){
smpi_test_sleep = xbt_cfg_get_double(name);
}
#endif
/* callback of the inclusion path */
static void _sg_cfg_cb__surf_path(const char *name, int pos)
{
char *path = xbt_strdup(xbt_cfg_get_string_at(simgrid_config, name, pos));
if (path[0]) // ignore ""
xbt_dynar_push(surf_path, &path);
}
/* callback to decide if we want to use the model-checking */
#include "src/xbt_modinter.h"
#if HAVE_MC
extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
extern int _sg_do_model_check_record;
#endif
static void _sg_cfg_cb_model_check_replay(const char *name, int pos) {
MC_record_path = xbt_cfg_get_string(name);
}
#if HAVE_MC
static void _sg_cfg_cb_model_check_record(const char *name, int pos) {
_sg_do_model_check_record = xbt_cfg_get_boolean(name);
}
#endif
extern int _sg_do_verbose_exit;
static void _sg_cfg_cb_verbose_exit(const char *name, int pos)
{
_sg_do_verbose_exit = xbt_cfg_get_boolean(name);
}
extern int _sg_do_clean_atexit;
static void _sg_cfg_cb_clean_atexit(const char *name, int pos)
{
_sg_do_clean_atexit = xbt_cfg_get_boolean(name);
}
static void _sg_cfg_cb_context_factory(const char *name, int pos)
{
smx_context_factory_name = xbt_cfg_get_string(name);
}
static void _sg_cfg_cb_context_stack_size(const char *name, int pos)
{
smx_context_stack_size_was_set = 1;
smx_context_stack_size = xbt_cfg_get_int(name) * 1024;
}
static void _sg_cfg_cb_context_guard_size(const char *name, int pos)
{
smx_context_guard_size_was_set = 1;
smx_context_guard_size = xbt_cfg_get_int(name) * xbt_pagesize;
}
static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
{
SIMIX_context_set_nthreads(xbt_cfg_get_int(name));
}
static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
{
SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(name));
}
static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
{
const char* mode_name = xbt_cfg_get_string(name);
if (!strcmp(mode_name, "posix")) {
SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
}
else if (!strcmp(mode_name, "futex")) {
SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
}
else if (!strcmp(mode_name, "busy_wait")) {
SIMIX_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\"");
}
}
static void _sg_cfg_cb__surf_network_coordinates(const char *name,
int pos)
{
static int already_set = 0;
int val = xbt_cfg_get_boolean(name);
if (val) {
if (!already_set) {
COORD_HOST_LEVEL = sg_host_extension_create(xbt_dynar_free_voidp);
COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
}
already_set = 1;
} else
if (already_set)
xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
}
static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
int pos)
{
sg_network_crosstraffic = xbt_cfg_get_boolean(name);
}
/* build description line with possible values */
static void describe_model(char *result,
const s_surf_model_description_t model_description[],
const char *name,
const char *description)
{
char *p = result +
sprintf(result, "%s. Possible values: %s", description,
model_description[0].name ? model_description[0].name : "n/a");
int i;
for (i = 1; model_description[i].name; i++)
p += sprintf(p, ", %s", model_description[i].name);
sprintf(p,
".\n (use 'help' as a value to see the long description of each %s)",
name);
}
/* create the config set, register what should be and parse the command line*/
void sg_config_init(int *argc, char **argv)
{
char description[1024];
/* Create the configuration support */
if (_sg_cfg_init_status == 0) { /* Only create stuff if not already inited */
/* Plugins configuration */
describe_model(description, surf_plugin_description, "plugin", "The plugins");
xbt_cfg_register_string("plugin", description, nullptr, &_sg_cfg_cb__plugin);
describe_model(description, surf_cpu_model_description, "model", "The model to use for the CPU");
xbt_cfg_register_string("cpu/model", description, "Cas01", &_sg_cfg_cb__cpu_model);
describe_model(description, surf_optimization_mode_description, "optimization mode", "The optimization modes to use for the CPU");
xbt_cfg_register_string("cpu/optim", description, "Lazy", &_sg_cfg_cb__optimization_mode);
describe_model(description, surf_storage_model_description, "model", "The model to use for the storage");
xbt_cfg_register_string("storage/model", description, "default", &_sg_cfg_cb__storage_mode);
describe_model(description, surf_network_model_description, "model", "The model to use for the network");
xbt_cfg_register_string("network/model", description, "LV08", &_sg_cfg_cb__network_model);
describe_model(description, surf_optimization_mode_description, "optimization mode", "The optimization modes to use for the network");
xbt_cfg_register_string("network/optim", description, "Lazy", &_sg_cfg_cb__optimization_mode);
describe_model(description, surf_host_model_description, "model", "The model to use for the host");
xbt_cfg_register_string("host/model", description, "default", &_sg_cfg_cb__host_model);
describe_model(description, surf_vm_model_description, "model", "The model to use for the vm");
xbt_cfg_register_string("vm/model", description, "default", &_sg_cfg_cb__vm_model);
xbt_cfg_register_double("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)",
4194304.0, _sg_cfg_cb__tcp_gamma);
xbt_cfg_register_double("surf/precision", "Numerical precision used when updating simulation times (in seconds)",
0.00001, _sg_cfg_cb__surf_precision);
xbt_cfg_register_double("maxmin/precision",
"Numerical precision used when computing resource sharing (in ops/sec or bytes/sec)",
0.00001, _sg_cfg_cb__maxmin_precision);
/* The parameters of network models */
xbt_cfg_register_double("network/sender_gap", "Minimum gap between two overlapping sends", NAN, _sg_cfg_cb__sender_gap); /* real default for "network/sender_gap" is set in network_smpi.cpp */
xbt_cfg_register_double("network/latency_factor", "Correction factor to apply to the provided latency (default value set by network model)",
1.0, _sg_cfg_cb__latency_factor);
xbt_cfg_register_double("network/bandwidth_factor", "Correction factor to apply to the provided bandwidth (default value set by network model)",
1.0, _sg_cfg_cb__bandwidth_factor);
xbt_cfg_register_double("network/weight_S",
"Correction factor to apply to the weight of competing streams (default value set by network model)",
NAN, _sg_cfg_cb__weight_S); /* real default for "network/weight_S" is set in network_*.cpp */
/* Inclusion path */
xbt_cfg_register_string("path", "Lookup path for inclusions in platform and deployment XML files", "", _sg_cfg_cb__surf_path);
xbt_cfg_register_boolean("cpu/maxmin_selective_update",
"Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
"no", NULL);
xbt_cfg_register_boolean("network/maxmin_selective_update",
"Update the constraint set propagating recursively to others constraints (off by default when optim is set to lazy)",
"no", NULL);
/* Replay (this part is enabled even if MC it disabled) */
xbt_cfg_register_string("model-check/replay", "Enable replay mode with the given path", nullptr, _sg_cfg_cb_model_check_replay);
#if HAVE_MC
/* do model-checking-record */
xbt_cfg_register_boolean("model-check/record", "Record the model-checking paths", "no", _sg_cfg_cb_model_check_record);
xbt_cfg_register_int("model-check/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.",
0, _mc_cfg_cb_checkpoint);
xbt_cfg_register_boolean("model-check/sparse_checkpoint", "Use sparse per-page snapshots.", "no", _mc_cfg_cb_sparse_checkpoint);
xbt_cfg_register_boolean("model-check/soft-dirty", "Use sparse per-page snapshots.", "no", _mc_cfg_cb_soft_dirty);
xbt_cfg_register_boolean("model-check/ksm", "Kernel same-page merging", "no", _mc_cfg_cb_ksm);
xbt_cfg_register_string("model-check/property", "Name of the file containing the property, as formated by the ltl2ba program.",
"", _mc_cfg_cb_property);
xbt_cfg_register_boolean("model-check/communications_determinism",
"Whether to enable the detection of communication determinism", "no", _mc_cfg_cb_comms_determinism);
xbt_cfg_register_boolean("model-check/send_determinism",
"Enable/disable the detection of send-determinism in the communications schemes", "no", _mc_cfg_cb_send_determinism);
/* Specify the kind of model-checking reduction */
xbt_cfg_register_string("model-check/reduction", "Specify the kind of exploration reduction (either none or DPOR)", "dpor", _mc_cfg_cb_reduce);
xbt_cfg_register_boolean("model-check/timeout", "Whether to enable timeouts for wait requests", "no", _mc_cfg_cb_timeout);
xbt_cfg_register_boolean("model-check/hash", "Whether to enable state hash for state comparison (experimental)", "no", _mc_cfg_cb_hash);
xbt_cfg_register_boolean("model-check/snapshot_fds", "Whether file descriptors must be snapshoted (currently unusable)", "no", _mc_cfg_cb_snapshot_fds);
xbt_cfg_register_int("model-check/max_depth", "Maximal exploration depth (default: 1000)", 1000, _mc_cfg_cb_max_depth);
xbt_cfg_register_int("model-check/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.",
0, _mc_cfg_cb_visited);
xbt_cfg_register_string("model-check/dot_output", "Name of dot output file corresponding to graph state", "", _mc_cfg_cb_dot_output);
xbt_cfg_register_boolean("model-check/termination", "Whether to enable non progressive cycle detection", "no", _mc_cfg_cb_termination);
#endif
xbt_cfg_register_boolean("verbose-exit", "Activate the \"do nothing\" mode in Ctrl-C", "yes", _sg_cfg_cb_verbose_exit);
/* context factory */
const char *dflt_ctx_fact = "thread";
{
char *p = description +
sprintf(description,
"Context factory to use in SIMIX. Possible values: %s",
dflt_ctx_fact);
#if HAVE_UCONTEXT_CONTEXTS
dflt_ctx_fact = "ucontext";
p += sprintf(p, ", %s", dflt_ctx_fact);
#endif
#if HAVE_RAW_CONTEXTS
dflt_ctx_fact = "raw";
p += sprintf(p, ", %s", dflt_ctx_fact);
#endif
sprintf(p, ".");
}
xbt_cfg_register_string("contexts/factory", description, dflt_ctx_fact, _sg_cfg_cb_context_factory);
xbt_cfg_register_int("contexts/stack_size", "Stack size of contexts in KiB", 8*1024, _sg_cfg_cb_context_stack_size);
/* (FIXME: this is unpleasant) Reset this static variable that was altered when setting the default value. */
smx_context_stack_size_was_set = 0;
/* guard size for contexts stacks in memory pages */
xbt_cfg_register_int("contexts/guard_size", "Guard size for contexts stacks in memory pages",
#if defined(_WIN32) || (PTH_STACKGROWTH != -1)
0, _sg_cfg_cb_context_guard_size);
#else
1, _sg_cfg_cb_context_guard_size);
#endif
/* No, it was not set yet (the above setdefault() changed this to 1). */
smx_context_guard_size_was_set = 0;
xbt_cfg_register_int("contexts/nthreads", "Number of parallel threads used to execute user contexts", 1, _sg_cfg_cb_contexts_nthreads);
xbt_cfg_register_int("contexts/parallel_threshold", "Minimal number of user contexts to be run in parallel (raw contexts only)",
2, _sg_cfg_cb_contexts_parallel_threshold);
/* synchronization mode for parallel user contexts */
xbt_cfg_register_string("contexts/synchro", "Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
#if HAVE_FUTEX_H
"futex", _sg_cfg_cb_contexts_parallel_mode);
#else //No futex on mac and posix is unimplememted yet
"busy_wait", _sg_cfg_cb_contexts_parallel_mode);
#endif
xbt_cfg_register_boolean("network/coordinates", "Whether we use a coordinate-based routing (as Vivaldi)",
"no", _sg_cfg_cb__surf_network_coordinates);
xbt_cfg_register_boolean("network/crosstraffic", "Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
"yes", _sg_cfg_cb__surf_network_crosstraffic);
#if HAVE_NS3
xbt_cfg_register_string("ns3/TcpModel", "The ns3 tcp model can be : NewReno or Reno or Tahoe", "default", NULL);
#endif
//For smpi/bw_factor and smpi/lat_factor
//Default value have to be "threshold0:value0;threshold1:value1;...;thresholdN:valueN"
//test is if( size >= thresholdN ) return valueN;
//Values can be modified with command line --cfg=smpi/bw_factor:"threshold0:value0;threshold1:value1;...;thresholdN:valueN"
// or with tag config put line
// SMPI model can be used without enable_smpi, so keep this out of the ifdef.
xbt_cfg_register_string("smpi/bw_factor", "Bandwidth factors for smpi.",
"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", NULL);
xbt_cfg_register_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", NULL);
xbt_cfg_register_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", NULL);
#if HAVE_SMPI
xbt_cfg_register_double("smpi/running_power", "Power of the host running the simulation (in flop/s). Used to bench the operations.", 20000.0, NULL);
xbt_cfg_register_boolean("smpi/display_timing", "Whether we should display the timing after simulation.", "no", NULL);
xbt_cfg_register_boolean("smpi/simulate_computation", "Whether the computational part of the simulated application should be simulated.", "yes", NULL);
xbt_cfg_register_boolean("smpi/use_shared_malloc", "Whether SMPI_SHARED_MALLOC is enabled. Disable it for debugging purposes.", "yes", NULL);
xbt_cfg_register_double("smpi/cpu_threshold", "Minimal computation time (in seconds) not discarded, or -1 for infinity.", 1e-6, NULL);
xbt_cfg_register_int("smpi/async_small_thresh", "Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
0, NULL);
xbt_cfg_register_int("smpi/send_is_detached_thresh", "Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
65536, NULL);
xbt_cfg_register_boolean("smpi/privatize_global_variables", "Whether we should privatize global variable at runtime.", "no", NULL);
xbt_cfg_register_string("smpi/os", "Small messages timings (MPI_Send minimum time for small messages)", "1:0:0:0:0", NULL);
xbt_cfg_register_string("smpi/ois", "Small messages timings (MPI_Isend minimum time for small messages)", "1:0:0:0:0", NULL);
xbt_cfg_register_string("smpi/or", "Small messages timings (MPI_Recv minimum time for small messages)", "1:0:0:0:0", NULL);
xbt_cfg_register_double("smpi/iprobe", "Minimum time to inject inside a call to MPI_Iprobe", 1e-4, _sg_cfg_cb__iprobe_sleep);
xbt_cfg_register_double("smpi/test", "Minimum time to inject inside a call to MPI_Test", 1e-4, _sg_cfg_cb__test_sleep);
xbt_cfg_register_double("smpi/wtime", "Minimum time to inject inside a call to MPI_Wtime", 0.0, _sg_cfg_cb__wtime_sleep);
xbt_cfg_register_string("smpi/coll_selector", "Which collective selector to use", "default", NULL);
xbt_cfg_register_string("smpi/gather", "Which collective to use for gather", nullptr, &_check_coll_gather);
xbt_cfg_register_string("smpi/allgather", "Which collective to use for allgather", nullptr, &_check_coll_allgather);
xbt_cfg_register_string("smpi/barrier", "Which collective to use for barrier", nullptr, &_check_coll_barrier);
xbt_cfg_register_string("smpi/reduce_scatter", "Which collective to use for reduce_scatter", nullptr, &_check_coll_reduce_scatter);
xbt_cfg_register_string("smpi/scatter", "Which collective to use for scatter", nullptr, &_check_coll_scatter);
xbt_cfg_register_string("smpi/allgatherv", "Which collective to use for allgatherv", nullptr, &_check_coll_allgatherv);
xbt_cfg_register_string("smpi/allreduce", "Which collective to use for allreduce", nullptr, &_check_coll_allreduce);
xbt_cfg_register_string("smpi/alltoall", "Which collective to use for alltoall", nullptr, &_check_coll_alltoall);
xbt_cfg_register_string("smpi/alltoallv", "Which collective to use for alltoallv", nullptr, &_check_coll_alltoallv);
xbt_cfg_register_string("smpi/bcast", "Which collective to use for bcast", nullptr, &_check_coll_bcast);
xbt_cfg_register_string("smpi/reduce", "Which collective to use for reduce", nullptr, &_check_coll_reduce);
#endif // HAVE_SMPI
xbt_cfg_register_boolean("exception/cutpath", "Whether to cut all path information from call traces, used e.g. in exceptions.", "no", NULL);
xbt_cfg_register_boolean("clean_atexit", "Whether to cleanup SimGrid at exit. Disable it if your code segfaults at ending.",
"yes", _sg_cfg_cb_clean_atexit);
if (!surf_path) {
/* 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");
surf_path = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
xbt_cfg_setdefault_string("path", initial_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(void)
{
if (!_sg_cfg_init_status)
return; /* Not initialized yet. Nothing to do */
xbt_cfg_free(&simgrid_config);
_sg_cfg_init_status = 0;
}
int sg_cfg_is_default_value(const char *name)
{
return xbt_cfg_is_default_value(name);
}
int sg_cfg_get_int(const char* name)
{
return xbt_cfg_get_int(name);
}
double sg_cfg_get_double(const char* name)
{
return xbt_cfg_get_double(name);
}
char* sg_cfg_get_string(const char* name)
{
return xbt_cfg_get_string(name);
}
int sg_cfg_get_boolean(const char* name)
{
return xbt_cfg_get_boolean(name);
}
xbt_dynar_t sg_cfg_get_dynar(const char* name)
{
return xbt_cfg_get_dynar(name);
}