-/* Copyright (c) 2009-2010, 2012-2015. The SimGrid Team.
+/* Copyright (c) 2009-2010, 2012-2017. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
#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 "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"
+#include "src/surf/surf_interface.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf, "About the configuration of SimGrid");
static void sg_config_cmd_line(int *argc, char **argv)
{
int shall_exit = 0;
- int i, j;
+ int i;
+ int j;
for (j = i = 1; i < *argc; i++) {
- if (!strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
+ if (not strncmp(argv[i], "--cfg=", strlen("--cfg="))) {
char *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")) {
+ } else if (not strcmp(argv[i], "--version")) {
printf("%s\n", SIMGRID_VERSION_STRING);
shall_exit = 1;
- } else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
+ } else if (not strcmp(argv[i], "--cfg-help") || not strcmp(argv[i], "--help")) {
printf("Description of the configuration accepted by this simulator:\n");
xbt_cfg_help();
printf(
"\n"
);
shall_exit = 1;
- } else if (!strcmp(argv[i], "--help-aliases")) {
+ } else if (not 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")) {
+ } else if (not strcmp(argv[i], "--help-models")) {
model_help("host", surf_host_model_description);
printf("\n");
model_help("CPU", surf_cpu_model_description);
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")) {
+ } else if (not strcmp(argv[i], "--help-tracing")) {
TRACE_help (1);
shall_exit = 1;
} else {
}
}
if (j < *argc) {
- argv[j] = NULL;
+ argv[j] = nullptr;
*argc = j;
}
if (shall_exit)
if (val==nullptr || val[0] == '\0')
return;
- if (!strcmp(val, "help")) {
+ if (not strcmp(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 (!strcmp(val, "help")) {
+ if (not strcmp(val, "help")) {
model_help("host", surf_host_model_description);
sg_cfg_exit_early();
}
find_model_description(surf_host_model_description, val);
}
-/* callback of the vm/model variable */
-static void _sg_cfg_cb__vm_model(const char *name)
-{
- 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)
{
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")) {
+ if (not strcmp(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 (!strcmp(val, "help")) {
+ if (not strcmp(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 (!strcmp(val, "help")) {
+ if (not strcmp(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 (!strcmp(val, "help")) {
+ if (not 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);
}
-
-#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){
- _check_coll("gather", mpi_coll_gather_description, name);
-}
-static void _check_coll_allgather(const char *name){
- _check_coll("allgather", mpi_coll_allgather_description, name);
-}
-static void _check_coll_allgatherv(const char *name){
- _check_coll("allgatherv", mpi_coll_allgatherv_description, name);
-}
-static void _check_coll_allreduce(const char *name)
-{
- _check_coll("allreduce", mpi_coll_allreduce_description, name);
-}
-static void _check_coll_alltoall(const char *name)
-{
- _check_coll("alltoall", mpi_coll_alltoall_description, name);
-}
-static void _check_coll_alltoallv(const char *name)
-{
- _check_coll("alltoallv", mpi_coll_alltoallv_description, name);
-}
-static void _check_coll_bcast(const char *name)
-{
- _check_coll("bcast", mpi_coll_bcast_description, name);
-}
-static void _check_coll_reduce(const char *name)
-{
- _check_coll("reduce", mpi_coll_reduce_description, name);
-}
-static void _check_coll_reduce_scatter(const char *name){
- _check_coll("reduce_scatter", mpi_coll_reduce_scatter_description, name);
-}
-static void _check_coll_scatter(const char *name){
- _check_coll("scatter", mpi_coll_scatter_description, name);
-}
-static void _check_coll_barrier(const char *name){
- _check_coll("barrier", mpi_coll_barrier_description, name);
-}
-
-#endif
-
/* callback to decide if we want to use the model-checking */
#include "src/xbt_modinter.h"
MC_record_path = nullptr;
}
-#if HAVE_MC
+#if SIMGRID_HAVE_MC
extern int _sg_do_model_check_record;
static void _sg_cfg_cb_model_check_record(const char *name) {
_sg_do_model_check_record = xbt_cfg_get_boolean(name);
static void _sg_cfg_cb_contexts_parallel_mode(const char *name)
{
const char* mode_name = xbt_cfg_get_string(name);
- if (!strcmp(mode_name, "posix")) {
+ if (not strcmp(mode_name, "posix")) {
SIMIX_context_set_parallel_mode(XBT_PARMAP_POSIX);
- }
- else if (!strcmp(mode_name, "futex")) {
+ } else if (not strcmp(mode_name, "futex")) {
SIMIX_context_set_parallel_mode(XBT_PARMAP_FUTEX);
- }
- else if (!strcmp(mode_name, "busy_wait")) {
+ } else if (not strcmp(mode_name, "busy_wait")) {
SIMIX_context_set_parallel_mode(XBT_PARMAP_BUSY_WAIT);
}
else {
}
}
-static void _sg_cfg_cb__surf_network_coordinates(const char *name)
-{
- 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)
{
sg_network_crosstraffic = xbt_cfg_get_boolean(name);
}
/* build description line with possible values */
-static void describe_model(char *result,
+static void describe_model(char *result,int resultsize,
const s_surf_model_description_t model_description[],
const char *name,
const char *description)
{
- char *p = result +
- sprintf(result, "%s. Possible values: %s", description,
+ result[0] = '\0';
+ char *p = result;
+ p += snprintf(result,resultsize-1, "%s. Possible values: %s", description,
model_description[0].name ? model_description[0].name : "n/a");
for (int 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);
+ p += snprintf(p,resultsize-(p-result)-1, ", %s", model_description[i].name);
+ p += snprintf(p,resultsize-(p-result)-1, ".\n (use 'help' as a value to see the long description of each %s)", name);
+
+ xbt_assert(p<result+resultsize-1,"Buffer too small to display the model description of %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];
+ const int descsize = 1024;
+ 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, surf_plugin_description, "plugin", "The plugins");
- xbt_cfg_register_string("plugin", nullptr, &_sg_cfg_cb__plugin, description);
-
- describe_model(description, 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, 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);
-
- describe_model(description, 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, 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, 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, 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, surf_vm_model_description, "model", "The model to use for the vm");
- xbt_cfg_register_string("vm/model", "default", &_sg_cfg_cb__vm_model, description);
-
- simgrid::config::bindFlag(sg_tcp_gamma = 4194304.0,
- { "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)");
- simgrid::config::bindFlag(sg_surf_precision = 0.00001,
- "surf/precision",
- "Numerical precision used when updating simulation times (in seconds)");
- simgrid::config::bindFlag(sg_maxmin_precision = 0.00001,
- "maxmin/precision",
- "Numerical precision used when computing resource sharing (in ops/sec or bytes/sec)");
-
- /* The parameters of network models */
-
- // real default for "network/sender-gap" is set in network_smpi.cpp:
- simgrid::config::bindFlag(sg_sender_gap = NAN,
- { "network/sender-gap", "network/sender_gap" },
- "Minimum gap between two overlapping sends");
- simgrid::config::bindFlag(sg_latency_factor = 1.0,
- { "network/latency-factor", "network/latency_factor" },
- "Correction factor to apply to the provided latency (default value set by network model)");
- simgrid::config::bindFlag(sg_bandwidth_factor = 1.0,
- { "network/bandwidth-factor", "network/bandwidth_factor" },
+ if (_sg_cfg_init_status != 0) { /* Only create stuff if not already inited */
+ XBT_WARN("Call to sg_config_init() after initialization ignored");
+ return;
+ }
+
+ /* 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);
+
+ 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_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_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_host_model_description, "model", "The model to use for the host");
+ xbt_cfg_register_string("host/model", "default", &_sg_cfg_cb__host_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)");
+
+ simgrid::config::bindFlag(sg_surf_precision, "surf/precision",
+ "Numerical precision used when updating simulation times (in seconds)");
+
+ 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_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");
+
+ /* The parameters of network models */
+
+ // 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");
+
+ 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 = 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:
- simgrid::config::bindFlag(sg_weight_S_parameter = NAN,
- { "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') {
- char* copy = xbt_strdup(path.c_str());
- xbt_dynar_push(surf_path, ©);
- }
- });
-
- xbt_cfg_register_boolean("cpu/maxmin-selective-update", "no", NULL,
- "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", NULL,
- "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)");
-
-#if HAVE_MC
+ /* 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)");
+
+#if SIMGRID_HAVE_MC
/* do model-checking-record */
xbt_cfg_register_boolean("model-check/record", "no", _sg_cfg_cb_model_check_record, "Record the model-checking paths");
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/coordinates", "no", _sg_cfg_cb__surf_network_coordinates,
- "Whether we use a coordinate-based routing (as Vivaldi)");
-
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", NULL,
+ "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,
"Bandwidth factors for smpi. Format: 'threshold0:value0;threshold1:value1;...;thresholdN:valueN', meaning if(size >=thresholdN ) return valueN.");
xbt_cfg_register_alias("smpi/bw-factor","smpi/bw_factor");
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", NULL, "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", 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", NULL,
+
+ 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/running-power", 20000.0, NULL, "Power of the host running the simulation (in flop/s). Used to bench the operations.");
- xbt_cfg_register_alias("smpi/running-power","smpi/running_power");
+ 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");
+ xbt_cfg_register_alias("smpi/host-speed","smpi/running-power");
+
+ xbt_cfg_register_boolean("smpi/keep-temps", "no", nullptr, "Whether we should keep the generated temporary files.");
- xbt_cfg_register_boolean("smpi/display-timing", "no", NULL, "Whether we should display the timing after simulation.");
+ xbt_cfg_register_boolean("smpi/display-timing", "no", nullptr, "Whether we should display the timing after simulation.");
xbt_cfg_register_alias("smpi/display-timing", "smpi/display_timing");
- xbt_cfg_register_boolean("smpi/simulate-computation", "yes", NULL, "Whether the computational part of the simulated application should be simulated.");
+ xbt_cfg_register_boolean("smpi/simulate-computation", "yes", nullptr, "Whether the computational part of the simulated application should be simulated.");
xbt_cfg_register_alias("smpi/simulate-computation","smpi/simulate_computation");
- xbt_cfg_register_boolean("smpi/use-shared-malloc", "yes", NULL, "Whether SMPI_SHARED_MALLOC is enabled. Disable it for debugging purposes.");
- xbt_cfg_register_alias("smpi/use-shared-malloc", "smpi/use_shared_malloc");
+ xbt_cfg_register_string("smpi/shared-malloc", "global", nullptr,
+ "Whether SMPI_SHARED_MALLOC is enabled. Disable it for debugging purposes.");
+ xbt_cfg_register_alias("smpi/shared-malloc", "smpi/use-shared-malloc");
+ xbt_cfg_register_alias("smpi/shared-malloc", "smpi/use_shared_malloc");
+ xbt_cfg_register_double("smpi/shared-malloc-blocksize", 1UL << 20, nullptr, "Size of the bogus file which will be created for global shared allocations");
+ xbt_cfg_register_string("smpi/shared-malloc-hugepage", "", nullptr,
+ "Path to a mounted hugetlbfs, to use huge pages with shared malloc.");
- xbt_cfg_register_double("smpi/cpu-threshold", 1e-6, NULL, "Minimal computation time (in seconds) not discarded, or -1 for infinity.");
+ xbt_cfg_register_double("smpi/cpu-threshold", 1e-6, nullptr, "Minimal computation time (in seconds) not discarded, or -1 for infinity.");
xbt_cfg_register_alias("smpi/cpu-threshold", "smpi/cpu_threshold");
- xbt_cfg_register_int("smpi/async-small-thresh", 0, NULL,
+ xbt_cfg_register_int("smpi/async-small-thresh", 0, nullptr,
"Maximal size of messages that are to be sent asynchronously, without waiting for the receiver");
xbt_cfg_register_alias("smpi/async-small-thresh","smpi/async_small_thresh");
xbt_cfg_register_alias("smpi/async-small-thresh","smpi/async_small_thres");
- xbt_cfg_register_boolean("smpi/trace-call-location", "no", NULL, "Should filename and linenumber of MPI calls be traced?");
+ xbt_cfg_register_boolean("smpi/trace-call-location", "no", nullptr, "Should filename and linenumber of MPI calls be traced?");
- xbt_cfg_register_int("smpi/send-is-detached-thresh", 65536, NULL,
+ xbt_cfg_register_int("smpi/send-is-detached-thresh", 65536, nullptr,
"Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend");
xbt_cfg_register_alias("smpi/send-is-detached-thresh","smpi/send_is_detached_thresh");
xbt_cfg_register_alias("smpi/send-is-detached-thresh","smpi/send_is_detached_thres");
- xbt_cfg_register_boolean("smpi/privatize-global-variables", "no", NULL, "Whether we should privatize global variable at runtime.");
- xbt_cfg_register_alias("smpi/privatize-global-variables", "smpi/privatize_global_variables");
+ const char* default_privatization = std::getenv("SMPI_PRIVATIZATION");
+ if (default_privatization == nullptr)
+ default_privatization = "no";
+
+ xbt_cfg_register_string("smpi/privatization", default_privatization, nullptr,
+ "How we should privatize global variable at runtime (no, yes, mmap, dlopen).");
+
+ xbt_cfg_register_alias("smpi/privatization", "smpi/privatize-global-variables");
+ xbt_cfg_register_alias("smpi/privatization", "smpi/privatize_global_variables");
+
+ xbt_cfg_register_boolean("smpi/grow-injected-times", "yes", nullptr, "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.");
#if HAVE_PAPI
- xbt_cfg_register_string("smpi/papi-events", nullptr, NULL, "This switch enables tracking the specified counters with PAPI");
+ xbt_cfg_register_string("smpi/papi-events", nullptr, nullptr, "This switch enables tracking the specified counters with PAPI");
#endif
- xbt_cfg_register_string("smpi/comp-adjustment-file", nullptr, NULL, "A file containing speedups or slowdowns for some parts of the code.");
- xbt_cfg_register_string("smpi/os", "1:0:0:0:0", NULL, "Small messages timings (MPI_Send minimum time for small messages)");
- xbt_cfg_register_string("smpi/ois", "1:0:0:0:0", NULL, "Small messages timings (MPI_Isend minimum time for small messages)");
- xbt_cfg_register_string("smpi/or", "1:0:0:0:0", NULL, "Small messages timings (MPI_Recv minimum time for small messages)");
+ xbt_cfg_register_string("smpi/comp-adjustment-file", nullptr, nullptr, "A file containing speedups or slowdowns for some parts of the code.");
+ xbt_cfg_register_string("smpi/os", "0:0:0:0:0", nullptr, "Small messages timings (MPI_Send minimum time for small messages)");
+ xbt_cfg_register_string("smpi/ois", "0:0:0:0:0", nullptr, "Small messages timings (MPI_Isend minimum time for small messages)");
+ xbt_cfg_register_string("smpi/or", "0:0:0:0:0", nullptr, "Small messages timings (MPI_Recv minimum time for small messages)");
- xbt_cfg_register_string("smpi/coll-selector", "default", NULL, "Which collective selector to use");
+ xbt_cfg_register_double("smpi/iprobe-cpu-usage", 1, nullptr, "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).");
+
+ xbt_cfg_register_string("smpi/coll-selector", "default", nullptr, "Which collective selector to use");
xbt_cfg_register_alias("smpi/coll-selector","smpi/coll_selector");
- xbt_cfg_register_string("smpi/gather", nullptr, &_check_coll_gather, "Which collective to use for gather");
- xbt_cfg_register_string("smpi/allgather", nullptr, &_check_coll_allgather, "Which collective to use for allgather");
- xbt_cfg_register_string("smpi/barrier", nullptr, &_check_coll_barrier, "Which collective to use for barrier");
- xbt_cfg_register_string("smpi/reduce-scatter",nullptr, &_check_coll_reduce_scatter, "Which collective to use for reduce_scatter");
- xbt_cfg_register_alias("smpi/reduce-scatter","smpi/reduce_scatter");
- xbt_cfg_register_string("smpi/scatter", nullptr, &_check_coll_scatter, "Which collective to use for scatter");
- xbt_cfg_register_string("smpi/allgatherv", nullptr, &_check_coll_allgatherv, "Which collective to use for allgatherv");
- xbt_cfg_register_string("smpi/allreduce", nullptr, &_check_coll_allreduce, "Which collective to use for allreduce");
- xbt_cfg_register_string("smpi/alltoall", nullptr, &_check_coll_alltoall, "Which collective to use for alltoall");
- xbt_cfg_register_string("smpi/alltoallv", nullptr, &_check_coll_alltoallv,"Which collective to use for alltoallv");
- xbt_cfg_register_string("smpi/bcast", nullptr, &_check_coll_bcast, "Which collective to use for bcast");
- xbt_cfg_register_string("smpi/reduce", nullptr, &_check_coll_reduce, "Which collective to use for reduce");
+ xbt_cfg_register_string("smpi/gather", nullptr, nullptr, "Which collective to use for gather");
+ xbt_cfg_register_string("smpi/allgather", nullptr, nullptr, "Which collective to use for allgather");
+ xbt_cfg_register_string("smpi/barrier", nullptr, nullptr, "Which collective to use for barrier");
+ xbt_cfg_register_string("smpi/reduce_scatter",nullptr, nullptr, "Which collective to use for reduce_scatter");
+ xbt_cfg_register_alias("smpi/reduce_scatter","smpi/reduce-scatter");
+ xbt_cfg_register_string("smpi/scatter", nullptr, nullptr, "Which collective to use for scatter");
+ xbt_cfg_register_string("smpi/allgatherv", nullptr, nullptr, "Which collective to use for allgatherv");
+ xbt_cfg_register_string("smpi/allreduce", nullptr, nullptr, "Which collective to use for allreduce");
+ xbt_cfg_register_string("smpi/alltoall", nullptr, nullptr, "Which collective to use for alltoall");
+ xbt_cfg_register_string("smpi/alltoallv", nullptr, nullptr,"Which collective to use for alltoallv");
+ xbt_cfg_register_string("smpi/bcast", nullptr, nullptr, "Which collective to use for bcast");
+ xbt_cfg_register_string("smpi/reduce", nullptr, nullptr, "Which collective to use for reduce");
#endif // HAVE_SMPI
- xbt_cfg_register_boolean("exception/cutpath", "no", NULL,
+ /* Storage */
+
+ sg_storage_max_file_descriptors = 1024;
+ simgrid::config::bindFlag(sg_storage_max_file_descriptors, "storage/max_file_descriptors",
+ "Maximum number of concurrently opened files per host. Default is 1024");
+
+ /* Others */
+
+ xbt_cfg_register_boolean("exception/cutpath", "no", nullptr,
"Whether to cut all path information from call traces, used e.g. in exceptions.");
xbt_cfg_register_boolean("clean-atexit", "yes", _sg_cfg_cb_clean_atexit,
"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) {
+ 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");
- surf_path = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
xbt_cfg_setdefault_string("path", initial_path);
}
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)
+void sg_config_finalize()
{
- if (!_sg_cfg_init_status)
+ if (not _sg_cfg_init_status)
return; /* Not initialized yet. Nothing to do */
xbt_cfg_free(&simgrid_config);
