/* Copyright (c) 2009, 2010. 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 "smpi/smpi_interface.h"
#include "mc/mc.h"
#include "instr/instr.h"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_config, surf,
"About the configuration of simgrid");
xbt_cfg_t _sg_cfg_set = NULL;
int _sg_init_status = 0; /* 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!) */
/* 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(_sg_cfg_set, opt);
XBT_DEBUG("Did apply '%s' as config setting", opt);
} else if (!strcmp(argv[i], "--cfg-help") || !strcmp(argv[i], "--help")) {
printf
("Description of the configuration accepted by this simulator:\n");
xbt_cfg_help(_sg_cfg_set);
printf(
"\n"
"Each of these configurations can be used by adding\n"
" --cfg=: \n"
"to the command line.\n"
"You can also use --help-models to see the details of all models known by this simulator.\n"
#ifdef HAVE_TRACING
"\n"
"You can also use --help-tracing to see the details of all tracing options known by this simulator.\n"
#endif
"\n"
"You can also use --help-logs and --help-log-categories to see the details of logging output.\n"
"\n"
);
shall_exit = 1;
} else if (!strcmp(argv[i], "--help-models")) {
int k;
model_help("workstation", surf_workstation_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;
#ifdef HAVE_TRACING
} else if (!strcmp(argv[i], "--help-tracing")) {
TRACE_help (1);
shall_exit = 1;
#endif
} else {
argv[j++] = argv[i];
}
}
if (j < *argc) {
argv[j] = NULL;
*argc = j;
}
if (shall_exit) {
_sg_init_status=1; // get everything cleanly cleaned on exit
exit(0);
}
}
/* callback of the workstation/model variable */
static void _sg_cfg_cb__workstation_model(const char *name, int pos)
{
char *val;
xbt_assert(_sg_init_status == 1,
"Cannot change the model after the initialization");
val = xbt_cfg_get_string(_sg_cfg_set, name);
if (!strcmp(val, "help")) {
model_help("workstation", surf_workstation_model_description);
exit(0);
}
/* Make sure that the model exists */
find_model_description(surf_workstation_model_description, val);
}
/* callback of the cpu/model variable */
static void _sg_cfg_cb__cpu_model(const char *name, int pos)
{
char *val;
xbt_assert(_sg_init_status == 1,
"Cannot change the model after the initialization");
val = xbt_cfg_get_string(_sg_cfg_set, name);
if (!strcmp(val, "help")) {
model_help("CPU", surf_cpu_model_description);
exit(0);
}
/* 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_init_status == 1,
"Cannot change the model after the initialization");
val = xbt_cfg_get_string(_sg_cfg_set, name);
if (!strcmp(val, "help")) {
model_help("optimization", surf_optimization_mode_description);
exit(0);
}
/* 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_init_status == 1,
"Cannot change the model after the initialization");
val = xbt_cfg_get_string(_sg_cfg_set, name);
if (!strcmp(val, "help")) {
model_help("storage", surf_storage_model_description);
exit(0);
}
/* New Module missing */
find_model_description(surf_storage_model_description, val);
}
/* callback of the workstation_model variable */
static void _sg_cfg_cb__network_model(const char *name, int pos)
{
char *val;
xbt_assert(_sg_init_status == 1,
"Cannot change the model after the initialization");
val = xbt_cfg_get_string(_sg_cfg_set, name);
if (!strcmp(val, "help")) {
model_help("network", surf_network_model_description);
exit(0);
}
/* 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(_sg_cfg_set, name);
}
static void _sg_cfg_cb__maxmin_precision(const char* name, int pos)
{
sg_maxmin_precision = xbt_cfg_get_double(_sg_cfg_set, name);
}
static void _sg_cfg_cb__sender_gap(const char* name, int pos)
{
sg_sender_gap = xbt_cfg_get_double(_sg_cfg_set, name);
}
static void _sg_cfg_cb__latency_factor(const char *name, int pos)
{
sg_latency_factor = xbt_cfg_get_double(_sg_cfg_set, name);
}
static void _sg_cfg_cb__bandwidth_factor(const char *name, int pos)
{
sg_bandwidth_factor = xbt_cfg_get_double(_sg_cfg_set, name);
}
static void _sg_cfg_cb__weight_S(const char *name, int pos)
{
sg_weight_S_parameter = xbt_cfg_get_double(_sg_cfg_set, name);
}
#ifdef HAVE_SMPI
/* callback of the mpi collectives */
static void _sg_cfg_cb__coll(const char *category,
s_mpi_coll_description_t * table,
const char *name, int pos)
{
char *val;
xbt_assert(_sg_init_status == 1,
"Cannot change the model after the initialization");
val = xbt_cfg_get_string(_sg_cfg_set, name);
if (!strcmp(val, "help")) {
coll_help(category, table);
exit(0);
}
/* New Module missing */
find_coll_description(table, val);
}
static void _sg_cfg_cb__coll_allgather(const char *name, int pos){
_sg_cfg_cb__coll("allgather", mpi_coll_allgather_description, name, pos);
}
static void _sg_cfg_cb__coll_allreduce(const char *name, int pos)
{
_sg_cfg_cb__coll("allreduce", mpi_coll_allreduce_description, name, pos);
}
static void _sg_cfg_cb__coll_alltoall(const char *name, int pos)
{
_sg_cfg_cb__coll("alltoall", mpi_coll_alltoall_description, name, pos);
}
static void _sg_cfg_cb__coll_bcast(const char *name, int pos)
{
_sg_cfg_cb__coll("bcast", mpi_coll_bcast_description, name, pos);
}
static void _sg_cfg_cb__coll_reduce(const char *name, int pos)
{
_sg_cfg_cb__coll("reduce", mpi_coll_reduce_description, name, pos);
}
#endif
/* callback of the inclusion path */
static void _sg_cfg_cb__surf_path(const char *name, int pos)
{
char *path = xbt_cfg_get_string_at(_sg_cfg_set, name, pos);
xbt_dynar_push(surf_path, &path);
}
/* callback to decide if we want to use the model-checking */
#include "xbt_modinter.h"
#ifdef HAVE_MC
extern int _sg_do_model_check; /* this variable lives in xbt_main until I find a right location for it */
#endif
static void _sg_cfg_cb_model_check(const char *name, int pos)
{
#ifdef HAVE_MC
_sg_do_model_check = xbt_cfg_get_int(_sg_cfg_set, name);
#else
if (xbt_cfg_get_int(_sg_cfg_set, name)) {
xbt_die("You tried to activate the model-checking from the command line, but it was not compiled in. Change your settings in cmake, recompile and try again");
}
#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_int(_sg_cfg_set, name);
}
static void _sg_cfg_cb_context_factory(const char *name, int pos) {
smx_context_factory_name = xbt_cfg_get_string(_sg_cfg_set, 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(_sg_cfg_set, name) * 1024;
}
static void _sg_cfg_cb_contexts_nthreads(const char *name, int pos)
{
SIMIX_context_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
}
static void _sg_cfg_cb_contexts_parallel_threshold(const char *name, int pos)
{
SIMIX_context_set_parallel_threshold(xbt_cfg_get_int(_sg_cfg_set, name));
}
static void _sg_cfg_cb_contexts_parallel_mode(const char *name, int pos)
{
const char* mode_name = xbt_cfg_get_string(_sg_cfg_set, 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)
{
char *val = xbt_cfg_get_string(_sg_cfg_set, name);
if (!strcmp(val, "yes")) {
if (!COORD_HOST_LEVEL) {
COORD_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_dynar_free_voidp);
COORD_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_dynar_free_voidp);
}
} else if (!strcmp(val, "no")) {
if (COORD_HOST_LEVEL)
xbt_die("Setting of whether to use coordinate cannot be disabled once set.");
} else {
xbt_die("Command line setting of whether to use coordinates must be either \"yes\" or \"no\"");
}
}
static void _sg_cfg_cb_surf_nthreads(const char *name, int pos)
{
surf_set_nthreads(xbt_cfg_get_int(_sg_cfg_set, name));
}
static void _sg_cfg_cb__surf_network_crosstraffic(const char *name,
int pos)
{
sg_network_crosstraffic = xbt_cfg_get_int(_sg_cfg_set, name);
}
#ifdef HAVE_GTNETS
static void _sg_cfg_cb__gtnets_jitter(const char *name, int pos)
{
sg_gtnets_jitter = xbt_cfg_get_double(_sg_cfg_set, name);
}
static void _sg_cfg_cb__gtnets_jitter_seed(const char *name, int pos)
{
sg_gtnets_jitter_seed = xbt_cfg_get_int(_sg_cfg_set, name);
}
#endif
/* create the config set, register what should be and parse the command line*/
void sg_config_init(int *argc, char **argv)
{
char *description = xbt_malloc(1024), *p = description;
char *default_value;
double double_default_value;
int default_value_int;
int i;
/* Create the configuration support */
if (_sg_init_status == 0) { /* Only create stuff if not already inited */
sprintf(description,
"The model to use for the CPU. Possible values: ");
p = description;
while (*(++p) != '\0');
for (i = 0; surf_cpu_model_description[i].name; i++)
p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
surf_cpu_model_description[i].name);
sprintf(p,
".\n (use 'help' as a value to see the long description of each model)");
default_value = xbt_strdup("Cas01");
xbt_cfg_register(&_sg_cfg_set, "cpu/model", description, xbt_cfgelm_string,
&default_value, 1, 1, &_sg_cfg_cb__cpu_model, NULL);
sprintf(description,
"The optimization modes to use for the CPU. Possible values: ");
p = description;
while (*(++p) != '\0');
for (i = 0; surf_optimization_mode_description[i].name; i++)
p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
surf_optimization_mode_description[i].name);
sprintf(p,
".\n (use 'help' as a value to see the long description of each optimization mode)");
default_value = xbt_strdup("Lazy");
xbt_cfg_register(&_sg_cfg_set, "cpu/optim", description, xbt_cfgelm_string,
&default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
sprintf(description,
"The model to use for the storage. Possible values: ");
p = description;
while (*(++p) != '\0');
for (i = 0; surf_storage_model_description[i].name; i++)
p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
surf_storage_model_description[i].name);
sprintf(p,
".\n (use 'help' as a value to see the long description of each model)");
default_value = xbt_strdup("default");
xbt_cfg_register(&_sg_cfg_set, "storage/model", description, xbt_cfgelm_string,
&default_value, 1, 1, &_sg_cfg_cb__storage_mode,
NULL);
/* ********************************************************************* */
/* TUTORIAL: New model */
sprintf(description,
"The model to use for the New model. Possible values: ");
p = description;
while (*(++p) != '\0');
for (i = 0; surf_new_model_description[i].name; i++)
p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
surf_new_model_description[i].name);
sprintf(p,
".\n (use 'help' as a value to see the long description of each model)");
default_value = xbt_strdup("default");
xbt_cfg_register(&_sg_cfg_set, "new_model/model", description, xbt_cfgelm_string,
&default_value, 1, 1, &_sg_cfg_cb__storage_mode,
NULL);
/* ********************************************************************* */
sprintf(description,
"The model to use for the network. Possible values: ");
p = description;
while (*(++p) != '\0');
for (i = 0; surf_network_model_description[i].name; i++)
p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
surf_network_model_description[i].name);
sprintf(p,
".\n (use 'help' as a value to see the long description of each model)");
default_value = xbt_strdup("LV08");
xbt_cfg_register(&_sg_cfg_set, "network/model", description, xbt_cfgelm_string,
&default_value, 1, 1, &_sg_cfg_cb__network_model,
NULL);
sprintf(description,
"The optimization modes to use for the network. Possible values: ");
p = description;
while (*(++p) != '\0');
for (i = 0; surf_optimization_mode_description[i].name; i++)
p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
surf_optimization_mode_description[i].name);
sprintf(p,
".\n (use 'help' as a value to see the long description of each optimization mode)");
default_value = xbt_strdup("Lazy");
xbt_cfg_register(&_sg_cfg_set, "network/optim", description, xbt_cfgelm_string,
&default_value, 1, 1, &_sg_cfg_cb__optimization_mode, NULL);
sprintf(description,
"The model to use for the workstation. Possible values: ");
p = description;
while (*(++p) != '\0');
for (i = 0; surf_workstation_model_description[i].name; i++)
p += sprintf(p, "%s%s", (i == 0 ? "" : ", "),
surf_workstation_model_description[i].name);
sprintf(p,
".\n (use 'help' as a value to see the long description of each model)");
default_value = xbt_strdup("default");
xbt_cfg_register(&_sg_cfg_set, "workstation/model", description, xbt_cfgelm_string,
&default_value, 1, 1,
&_sg_cfg_cb__workstation_model, NULL);
xbt_free(description);
xbt_cfg_register(&_sg_cfg_set, "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)",
xbt_cfgelm_double, NULL, 1, 1,
_sg_cfg_cb__tcp_gamma, NULL);
xbt_cfg_setdefault_double(_sg_cfg_set, "network/TCP_gamma", 4194304.0);
xbt_cfg_register(&_sg_cfg_set, "maxmin/precision",
"Numerical precision used when updating simulation models (epsilon in double comparisons)",
xbt_cfgelm_double, NULL, 1, 1, _sg_cfg_cb__maxmin_precision, NULL);
xbt_cfg_setdefault_double(_sg_cfg_set, "maxmin/precision", 0.00001);
/* The parameters of network models */
xbt_cfg_register(&_sg_cfg_set, "network/sender_gap",
"Minimum gap between two overlapping sends",
xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
_sg_cfg_cb__sender_gap, NULL);
double_default_value = 1.0; // FIXME use setdefault everywhere here!
xbt_cfg_register(&_sg_cfg_set, "network/latency_factor",
"Correction factor to apply to the provided latency (default value set by network model)",
xbt_cfgelm_double, &double_default_value, 1, 1,
_sg_cfg_cb__latency_factor, NULL);
double_default_value = 1.0;
xbt_cfg_register(&_sg_cfg_set, "network/bandwidth_factor",
"Correction factor to apply to the provided bandwidth (default value set by network model)",
xbt_cfgelm_double, &double_default_value, 1, 1,
_sg_cfg_cb__bandwidth_factor, NULL);
xbt_cfg_register(&_sg_cfg_set, "network/weight_S",
"Correction factor to apply to the weight of competing streams (default value set by network model)",
xbt_cfgelm_double, NULL, 1, 1, /* default is set in network.c */
_sg_cfg_cb__weight_S, NULL);
/* Inclusion path */
xbt_cfg_register(&_sg_cfg_set, "path",
"Lookup path for inclusions in platform and deployment XML files",
xbt_cfgelm_string, NULL, 0, 0,
_sg_cfg_cb__surf_path, NULL);
default_value_int = 0;
xbt_cfg_register(&_sg_cfg_set, "cpu/maxmin_selective_update",
"Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
xbt_cfgelm_int, &default_value_int, 0, 1,
NULL, NULL);
default_value_int = 0;
xbt_cfg_register(&_sg_cfg_set, "network/maxmin_selective_update",
"Update the constraint set propagating recursively to others constraints (1 by default when optim is set to lazy)",
xbt_cfgelm_int, &default_value_int, 0, 1,
NULL, NULL);
#ifdef HAVE_MC
/* do model-checking */
xbt_cfg_register(&_sg_cfg_set, "model-check",
"Verify the system through model-checking instead of simulating it (EXPERIMENTAL)",
xbt_cfgelm_int, NULL, 0, 1,
_sg_cfg_cb_model_check, NULL);
xbt_cfg_setdefault_int(_sg_cfg_set, "model-check", 0);
/* do stateful model-checking */
xbt_cfg_register(&_sg_cfg_set, "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.",
xbt_cfgelm_int, NULL, 0, 1,
_mc_cfg_cb_checkpoint, NULL);
xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/checkpoint", 0);
/* do liveness model-checking */
xbt_cfg_register(&_sg_cfg_set, "model-check/property",
"Specify the name of the file containing the property. It must be the result of the ltl2ba program.",
xbt_cfgelm_string, NULL, 0, 1,
_mc_cfg_cb_property, NULL);
xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/property", "");
/* Specify the kind of model-checking reduction */
xbt_cfg_register(&_sg_cfg_set, "model-check/reduction",
"Specify the kind of exploration reduction (either none or DPOR)",
xbt_cfgelm_string, NULL, 0, 1,
_mc_cfg_cb_reduce, NULL);
xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/reduction", "dpor");
/* Enable/disable timeout for wait requests with model-checking */
xbt_cfg_register(&_sg_cfg_set, "model-check/timeout",
"Enable/Disable timeout for wait requests",
xbt_cfgelm_int, NULL, 0, 1,
_mc_cfg_cb_timeout, NULL);
xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/timeout", 0);
/* Set max depth exploration */
xbt_cfg_register(&_sg_cfg_set, "model-check/max_depth",
"Specify the max depth of exploration (default : 1000)",
xbt_cfgelm_int, NULL, 0, 1,
_mc_cfg_cb_max_depth, NULL);
xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/max_depth", 1000);
/* Set number of visited state stored for state comparison reduction*/
xbt_cfg_register(&_sg_cfg_set, "model-check/visited",
"Specify the number of visited state stored for state comparison reduction. If value=5, the last 5 visited states are stored",
xbt_cfgelm_int, NULL, 0, 1,
_mc_cfg_cb_visited, NULL);
xbt_cfg_setdefault_int(_sg_cfg_set, "model-check/visited", 0);
/* Set file name for dot output of graph state */
xbt_cfg_register(&_sg_cfg_set, "model-check/dot_output",
"Specify the name of dot file corresponding to graph state",
xbt_cfgelm_string, NULL, 0, 1,
_mc_cfg_cb_dot_output, NULL);
xbt_cfg_setdefault_string(_sg_cfg_set, "model-check/dot_output", "");
#endif
/* do verbose-exit */
default_value_int = 1;
xbt_cfg_register(&_sg_cfg_set, "verbose-exit",
"Activate the \"do nothing\" mode in Ctrl-C",
xbt_cfgelm_int, &default_value_int, 0, 1,
_sg_cfg_cb_verbose_exit, NULL);
/* context factory */
default_value = xbt_strdup("ucontext");
xbt_cfg_register(&_sg_cfg_set, "contexts/factory",
"Context factory to use in SIMIX (ucontext, thread or raw)",
xbt_cfgelm_string, &default_value, 1, 1, _sg_cfg_cb_context_factory, NULL);
/* stack size of contexts in Ko */
default_value_int = 128;
xbt_cfg_register(&_sg_cfg_set, "contexts/stack_size",
"Stack size of contexts in Kib (ucontext or raw only)",
xbt_cfgelm_int, &default_value_int, 1, 1,
_sg_cfg_cb_context_stack_size, NULL);
/* number of parallel threads for user processes */
default_value_int = 1;
xbt_cfg_register(&_sg_cfg_set, "contexts/nthreads",
"Number of parallel threads used to execute user contexts",
xbt_cfgelm_int, &default_value_int, 1, 1,
_sg_cfg_cb_contexts_nthreads, NULL);
/* minimal number of user contexts to be run in parallel */
default_value_int = 2;
xbt_cfg_register(&_sg_cfg_set, "contexts/parallel_threshold",
"Minimal number of user contexts to be run in parallel (raw contexts only)",
xbt_cfgelm_int, &default_value_int, 1, 1,
_sg_cfg_cb_contexts_parallel_threshold, NULL);
/* synchronization mode for parallel user contexts */
#ifdef HAVE_FUTEX_H
default_value = xbt_strdup("futex");
#else //No futex on mac and posix is unimplememted yet
default_value = xbt_strdup("busy_wait");
#endif
xbt_cfg_register(&_sg_cfg_set, "contexts/synchro",
"Synchronization mode to use when running contexts in parallel (either futex, posix or busy_wait)",
xbt_cfgelm_string, &default_value, 1, 1,
_sg_cfg_cb_contexts_parallel_mode, NULL);
/* number of parallel threads for Surf */
default_value_int = surf_get_nthreads();
xbt_cfg_register(&_sg_cfg_set, "surf/nthreads",
"Number of parallel threads used to update Surf models",
xbt_cfgelm_int, &default_value_int, 1, 1,
_sg_cfg_cb_surf_nthreads, NULL);
default_value = xbt_strdup("no");
xbt_cfg_register(&_sg_cfg_set, "network/coordinates",
"\"yes\" or \"no\", specifying whether we use a coordinate-based routing (as Vivaldi)",
xbt_cfgelm_string, &default_value, 1, 1,
_sg_cfg_cb__surf_network_coordinates, NULL);
xbt_cfg_setdefault_string(_sg_cfg_set, "network/coordinates", default_value);
default_value_int = 0;
xbt_cfg_register(&_sg_cfg_set, "network/crosstraffic",
"Activate the interferences between uploads and downloads for fluid max-min models (LV08, CM02)",
xbt_cfgelm_int, &default_value_int, 0, 1,
_sg_cfg_cb__surf_network_crosstraffic, NULL);
xbt_cfg_setdefault_int(_sg_cfg_set, "network/crosstraffic", default_value_int);
#ifdef HAVE_GTNETS
xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter",
"Double value to oscillate the link latency, uniformly in random interval [-latency*gtnets_jitter,latency*gtnets_jitter)",
xbt_cfgelm_double, NULL, 1, 1,
_sg_cfg_cb__gtnets_jitter, NULL);
xbt_cfg_setdefault_double(_sg_cfg_set, "gtnets/jitter", 0.0);
default_value_int = 10;
xbt_cfg_register(&_sg_cfg_set, "gtnets/jitter_seed",
"Use a positive seed to reproduce jitted results, value must be in [1,1e8], default is 10",
xbt_cfgelm_int, &default_value_int, 0, 1,
_sg_cfg_cb__gtnets_jitter_seed, NULL);
#endif
#ifdef HAVE_NS3
xbt_cfg_register(&_sg_cfg_set, "ns3/TcpModel",
"The ns3 tcp model can be : NewReno or Reno or Tahoe",
xbt_cfgelm_string, NULL, 1, 1,
NULL, NULL);
xbt_cfg_setdefault_string(_sg_cfg_set, "ns3/TcpModel", "default");
#endif
#ifdef HAVE_SMPI
double default_reference_speed = 20000.0;
xbt_cfg_register(&_sg_cfg_set, "smpi/running_power",
"Power of the host running the simulation (in flop/s). Used to bench the operations.",
xbt_cfgelm_double, &default_reference_speed, 1, 1, NULL,
NULL);
int default_display_timing = 0;
xbt_cfg_register(&_sg_cfg_set, "smpi/display_timing",
"Boolean indicating whether we should display the timing after simulation.",
xbt_cfgelm_int, &default_display_timing, 1, 1, NULL,
NULL);
double default_threshold = 1e-6;
xbt_cfg_register(&_sg_cfg_set, "smpi/cpu_threshold",
"Minimal computation time (in seconds) not discarded.",
xbt_cfgelm_double, &default_threshold, 1, 1, NULL,
NULL);
int default_small_messages_threshold = 0;
xbt_cfg_register(&_sg_cfg_set, "smpi/async_small_thres",
"Maximal size of messages that are to be sent asynchronously, without waiting for the receiver",
xbt_cfgelm_int, &default_small_messages_threshold, 1, 1, NULL,
NULL);
int default_send_is_detached_threshold = 65536;
xbt_cfg_register(&_sg_cfg_set, "smpi/send_is_detached_thres",
"Threshold of message size where MPI_Send stops behaving like MPI_Isend and becomes MPI_Ssend",
xbt_cfgelm_int, &default_send_is_detached_threshold, 1, 1, NULL,
NULL);
//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
xbt_cfg_register(&_sg_cfg_set, "smpi/bw_factor",
"Bandwidth factors for smpi.",
xbt_cfgelm_string, NULL, 1, 1, NULL,
NULL);
xbt_cfg_setdefault_string(_sg_cfg_set, "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");
xbt_cfg_register(&_sg_cfg_set, "smpi/lat_factor",
"Latency factors for smpi.",
xbt_cfgelm_string, NULL, 1, 1, NULL,
NULL);
xbt_cfg_setdefault_string(_sg_cfg_set, "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");
xbt_cfg_register(&_sg_cfg_set, "smpi/os",
"Small messages timings (MPI_Send minimum time for small messages)",
xbt_cfgelm_string, NULL, 1, 1, NULL,
NULL);
xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/os", "1:0:0:0:0");
xbt_cfg_register(&_sg_cfg_set, "smpi/ois",
"Small messages timings (MPI_Isend minimum time for small messages)",
xbt_cfgelm_string, NULL, 1, 1, NULL,
NULL);
xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/ois", "1:0:0:0:0");
xbt_cfg_register(&_sg_cfg_set, "smpi/or",
"Small messages timings (MPI_Recv minimum time for small messages)",
xbt_cfgelm_string, NULL, 1, 1, NULL,
NULL);
xbt_cfg_setdefault_string(_sg_cfg_set, "smpi/or", "1:0:0:0:0");
default_value = xbt_strdup("default");
xbt_cfg_register(&_sg_cfg_set, "smpi/allgather",
"Which collective to use for allgather",
xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_allgather,
NULL);
default_value = xbt_strdup("default");
xbt_cfg_register(&_sg_cfg_set, "smpi/allreduce",
"Which collective to use for allreduce",
xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_allreduce,
NULL);
default_value = xbt_strdup("ompi");
xbt_cfg_register(&_sg_cfg_set, "smpi/alltoall",
"Which collective to use for alltoall",
xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_alltoall,
NULL);
default_value = xbt_strdup("default");
xbt_cfg_register(&_sg_cfg_set, "smpi/bcast",
"Which collective to use for bcast",
xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_bcast,
NULL);
default_value = xbt_strdup("default");
xbt_cfg_register(&_sg_cfg_set, "smpi/reduce",
"Which collective to use for reduce",
xbt_cfgelm_string, &default_value, 1, 1, &_sg_cfg_cb__coll_reduce,
NULL);
#endif // HAVE_SMPI
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 resolves current Windows directory");
surf_path = xbt_dynar_new(sizeof(char *), NULL);
xbt_cfg_setdefault_string(_sg_cfg_set, "path", initial_path);
}
_sg_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_init_status)
return; /* Not initialized yet. Nothing to do */
xbt_cfg_free(&_sg_cfg_set);
_sg_init_status = 0;
}
/* Pick the right models for CPU, net and workstation, and call their model_init_preparse */
void surf_config_models_setup()
{
char *workstation_model_name;
int workstation_id = -1;
char *network_model_name = NULL;
char *cpu_model_name = NULL;
int storage_id = -1;
char *storage_model_name = NULL;
workstation_model_name =
xbt_cfg_get_string(_sg_cfg_set, "workstation/model");
network_model_name = xbt_cfg_get_string(_sg_cfg_set, "network/model");
cpu_model_name = xbt_cfg_get_string(_sg_cfg_set, "cpu/model");
storage_model_name = xbt_cfg_get_string(_sg_cfg_set, "storage/model");
/* Check whether we use a net/cpu model differing from the default ones, in which case
* we should switch to the "compound" workstation model to correctly dispatch stuff to
* the right net/cpu models.
*/
if((!xbt_cfg_is_default_value(_sg_cfg_set, "network/model") ||
!xbt_cfg_is_default_value(_sg_cfg_set, "cpu/model")) &&
xbt_cfg_is_default_value(_sg_cfg_set, "workstation/model"))
{
const char *val = "compound";
XBT_INFO
("Switching workstation model to compound since you changed the network and/or cpu model(s)");
xbt_cfg_set_string(_sg_cfg_set, "workstation/model", val);
workstation_model_name = (char *) "compound";
}
XBT_DEBUG("Workstation model: %s", workstation_model_name);
workstation_id =
find_model_description(surf_workstation_model_description,
workstation_model_name);
if (!strcmp(workstation_model_name, "compound")) {
int network_id = -1;
int cpu_id = -1;
xbt_assert(cpu_model_name,
"Set a cpu model to use with the 'compound' workstation model");
xbt_assert(network_model_name,
"Set a network model to use with the 'compound' workstation model");
network_id =
find_model_description(surf_network_model_description,
network_model_name);
cpu_id =
find_model_description(surf_cpu_model_description, cpu_model_name);
surf_cpu_model_description[cpu_id].model_init_preparse();
surf_network_model_description[network_id].model_init_preparse();
}
XBT_DEBUG("Call workstation_model_init");
surf_workstation_model_description[workstation_id].model_init_preparse();
XBT_DEBUG("Call storage_model_init");
storage_id = find_model_description(surf_storage_model_description, storage_model_name);
surf_storage_model_description[storage_id].model_init_preparse();
/* ********************************************************************* */
/* TUTORIAL: New model */
int new_model_id = -1;
char *new_model_name = NULL;
new_model_name = xbt_cfg_get_string(_sg_cfg_set, "new_model/model");
XBT_DEBUG("Call new model_init");
new_model_id = find_model_description(surf_new_model_description, new_model_name);
surf_new_model_description[new_model_id].model_init_preparse();
/* ********************************************************************* */
}
int sg_cfg_get_int(const char* name)
{
return xbt_cfg_get_int(_sg_cfg_set,name);
}
double sg_cfg_get_double(const char* name)
{
return xbt_cfg_get_double(_sg_cfg_set,name);
}
char* sg_cfg_get_string(const char* name)
{
return xbt_cfg_get_string(_sg_cfg_set,name);
}
void sg_cfg_get_peer(const char *name, char **peer, int *port)
{
xbt_cfg_get_peer(_sg_cfg_set,name, peer, port);
}
xbt_dynar_t sg_cfg_get_dynar(const char* name)
{
return xbt_cfg_get_dynar(_sg_cfg_set,name);
}