-/* $Id$ */
-
-/* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
+/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011. 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. */
#include "surf_private.h"
#include "xbt/module.h"
+#include "mc/mc.h"
+#include "surf/surf_resource.h"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf,
"Logging specific to SURF (kernel)");
#define MAX_DRIVE 26
#endif
-#ifdef _WIN32
+#ifdef _XBT_WIN32
#include <windows.h>
static const char *disk_drives_letter_table[MAX_DRIVE] = {
"A:\\",
"Y:\\",
"Z:\\"
};
-#endif /* #ifdef _WIN32 */
+#endif /* #ifdef _XBT_WIN32 */
/*
* Returns the initial path. On Windows the initial path is
const char *__surf_get_initial_path(void)
{
-#ifdef _WIN32
+#ifdef _XBT_WIN32
unsigned i;
char current_directory[MAX_PATH + 1] = { 0 };
unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
*/
int __surf_is_absolute_file_path(const char *file_path)
{
-#ifdef _WIN32
+#ifdef _XBT_WIN32
WIN32_FIND_DATA wfd = { 0 };
HANDLE hFile = FindFirstFile(file_path, &wfd);
#endif
}
-static double NOW = 0;
+double NOW = 0;
xbt_dynar_t model_list = NULL;
tmgr_history_t history = NULL;
/* Don't forget to update the option description in smx_config when you change this */
s_surf_model_description_t surf_network_model_description[] = {
- {"Constant", NULL, surf_network_model_init_Constant},
- {"CM02", NULL, surf_network_model_init_CM02},
- {"LV08", NULL, surf_network_model_init_LegrandVelho},
+ {"LV08",
+ "Realistic network analytic model (slow-start modeled by multiplying latency by 10.4, bandwidth by .92; bottleneck sharing uses a payload of S=8775 for evaluating RTT). ",
+ surf_network_model_init_LegrandVelho},
+ {"Constant",
+ "Simplistic network model where all communication take a constant time (one second). This model provides the lowest realism, but is (marginally) faster.",
+ surf_network_model_init_Constant},
+ {"SMPI",
+ "Realistic network model specifically tailored for HPC settings (accurate modeling of slow start with correction factors on three intervals: < 1KiB, < 64 KiB, >= 64 KiB)",
+ surf_network_model_init_SMPI},
+ {"CM02",
+ "Legacy network analytic model (Very similar to LV08, but without corrective factors. The timings of small messages are thus poorly modeled).",
+ surf_network_model_init_CM02},
#ifdef HAVE_GTNETS
- {"GTNets", NULL, surf_network_model_init_GTNETS},
+ {"GTNets",
+ "Network pseudo-model using the GTNets simulator instead of an analytic model",
+ surf_network_model_init_GTNETS},
+#endif
+#ifdef HAVE_NS3
+ {"NS3",
+ "Network pseudo-model using the NS3 tcp model instead of an analytic model",
+ surf_network_model_init_NS3},
#endif
- {"Reno", NULL, surf_network_model_init_Reno},
- {"Reno2", NULL, surf_network_model_init_Reno2},
- {"Vegas", NULL, surf_network_model_init_Vegas},
- {NULL, NULL, NULL} /* this array must be NULL terminated */
+ {"Reno",
+ "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
+ surf_network_model_init_Reno},
+ {"Reno2",
+ "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
+ surf_network_model_init_Reno2},
+ {"Vegas",
+ "Model from Steven H. Low using lagrange_solve instead of lmm_solve (experts only; check the code for more info).",
+ surf_network_model_init_Vegas},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
};
s_surf_model_description_t surf_cpu_model_description[] = {
- {"Cas01", NULL, surf_cpu_model_init_Cas01},
- {"Cas01_IM", NULL, surf_cpu_model_init_Cas01_im},
- {"CpuTI", NULL, surf_cpu_model_init_ti},
- {NULL, NULL, NULL} /* this array must be NULL terminated */
+ {"Cas01",
+ "Simplistic CPU model (time=size/power).",
+ surf_cpu_model_init_Cas01},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
};
s_surf_model_description_t surf_workstation_model_description[] = {
- {"CLM03", NULL, surf_workstation_model_init_CLM03, create_workstations},
- {"compound", NULL, surf_workstation_model_init_compound,
- create_workstations},
- {"ptask_L07", NULL, surf_workstation_model_init_ptask_L07, NULL},
- {NULL, NULL, NULL} /* this array must be NULL terminated */
+ {"default",
+ "Default workstation model. Currently, CPU:Cas01 and network:LV08 (with cross traffic enabled)",
+ surf_workstation_model_init_current_default},
+ {"compound",
+ "Workstation model that is automatically chosen if you change the network and CPU models",
+ surf_workstation_model_init_compound},
+ {"ptask_L07", "Workstation model somehow similar to Cas01+CM02 but allowing parallel tasks",
+ surf_workstation_model_init_ptask_L07},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
};
-void update_model_description(s_surf_model_description_t * table,
- const char *name, surf_model_t model)
+s_surf_model_description_t surf_optimization_mode_description[] = {
+ {"Lazy",
+ "Lazy action management (partial invalidation in lmm + heap in action remaining).",
+ NULL},
+ {"TI",
+ "Trace integration. Highly optimized mode when using availability traces (only available for the Cas01 CPU model for now).",
+ NULL},
+ {"Full",
+ "Full update of remaining and variables. Slow but may be useful when debugging.",
+ NULL},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+/** Displays the long description of all registered models, and quit */
+void model_help(const char *category, s_surf_model_description_t * table)
{
- int i = find_model_description(table, name);
- table[i].model = model;
+ int i;
+ printf("Long description of the %s models accepted by this simulator:\n",
+ category);
+ for (i = 0; table[i].name; i++)
+ printf(" %s: %s\n", table[i].name, table[i].description);
}
int find_model_description(s_surf_model_description_t * table,
name_list = strdup(table[0].name);
for (i = 1; table[i].name; i++) {
name_list =
- xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 2);
+ xbt_realloc(name_list,
+ strlen(name_list) + strlen(table[i].name) + 3);
strcat(name_list, ", ");
strcat(name_list, table[i].name);
}
- xbt_assert2(0, "Model '%s' is invalid! Valid models are: %s.", name,
- name_list);
+ xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
+ return -1;
}
double generic_maxmin_share_resources(xbt_swag_t running_actions,
double value = -1;
#define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
- xbt_assert0(solve, "Give me a real solver function!");
solve(sys);
xbt_swag_foreach(action, running_actions) {
for (action = xbt_swag_getNext(action, running_actions->offset);
- action; action = xbt_swag_getNext(action, running_actions->offset)) {
+ action;
+ action = xbt_swag_getNext(action, running_actions->offset)) {
value = lmm_variable_getvalue(VARIABLE(action));
if (value > 0) {
if (action->remains > 0)
value = 0.0;
if (value < min) {
min = value;
- DEBUG2("Updating min (value) with %p: %f", action, min);
+ XBT_DEBUG("Updating min (value) with %p: %f", action, min);
}
}
if ((action->max_duration >= 0) && (action->max_duration < min)) {
min = action->max_duration;
- DEBUG2("Updating min (duration) with %p: %f", action, min);
+ XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
}
}
- DEBUG1("min value : %f", min);
+ XBT_DEBUG("min value : %f", min);
#undef VARIABLE
return min;
}
-
XBT_LOG_EXTERNAL_CATEGORY(surf_cpu);
XBT_LOG_EXTERNAL_CATEGORY(surf_kernel);
XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange);
XBT_LOG_EXTERNAL_CATEGORY(surf_timer);
XBT_LOG_EXTERNAL_CATEGORY(surf_workstation);
XBT_LOG_EXTERNAL_CATEGORY(surf_config);
-XBT_LOG_EXTERNAL_CATEGORY(surf_routing);
-
+XBT_LOG_EXTERNAL_CATEGORY(surf_route);
#ifdef HAVE_GTNETS
XBT_LOG_EXTERNAL_CATEGORY(surf_network_gtnets);
void surf_init(int *argc, char **argv)
{
+ XBT_DEBUG("Create all Libs");
+ host_lib = xbt_lib_new();
+ link_lib = xbt_lib_new();
+ as_router_lib = xbt_lib_new();
+
+ XBT_DEBUG("ADD ROUTING LEVEL");
+ ROUTING_HOST_LEVEL = xbt_lib_add_level(host_lib,xbt_free);
+ ROUTING_ASR_LEVEL = xbt_lib_add_level(as_router_lib,xbt_free);
+
+ XBT_DEBUG("ADD SURF LEVELS");
+ SURF_CPU_LEVEL = xbt_lib_add_level(host_lib,surf_resource_free);
+ SURF_WKS_LEVEL = xbt_lib_add_level(host_lib,surf_resource_free);
+ SURF_LINK_LEVEL = xbt_lib_add_level(link_lib,surf_resource_free);
+
/* Connect our log channels: that must be done manually under windows */
XBT_LOG_CONNECT(surf_cpu, surf);
XBT_LOG_CONNECT(surf_kernel, surf);
XBT_LOG_CONNECT(surf_timer, surf);
XBT_LOG_CONNECT(surf_workstation, surf);
XBT_LOG_CONNECT(surf_config, surf);
- XBT_LOG_CONNECT(surf_routing, surf);
+ XBT_LOG_CONNECT(surf_route, surf);
#ifdef HAVE_GTNETS
XBT_LOG_CONNECT(surf_network_gtnets, surf);
history = tmgr_history_new();
surf_config_init(argc, argv);
+ surf_action_init();
+ if (MC_IS_ENABLED)
+ MC_memory_init();
}
-#ifdef WIN32
+#ifdef _XBT_WIN32
# define FILE_DELIM "\\"
#else
# define FILE_DELIM "/" /* FIXME: move to better location */
surf_config_finalize();
xbt_dynar_foreach(model_list, iter, model)
- model->model_private->finalize();
+ model->model_private->finalize();
xbt_dynar_free(&model_list);
+ routing_exit();
if (maxmin_system) {
lmm_system_free(maxmin_system);
tmgr_history_free(history);
history = NULL;
}
+ surf_action_exit();
+
+ xbt_dynar_free(&surf_path);
+
+ xbt_lib_free(&host_lib);
+ xbt_lib_free(&link_lib);
+ xbt_lib_free(&as_router_lib);
- if (surf_path)
- xbt_dynar_free(&surf_path);
tmgr_finalize();
surf_parse_lex_destroy();
surf_parse_free_callbacks();
- xbt_dict_free(&route_table);
+
NOW = 0; /* Just in case the user plans to restart the simulation afterward */
- xbt_exit();
}
void surf_presolve(void)
surf_model_t model = NULL;
unsigned int iter;
- DEBUG0
- ("First Run! Let's \"purge\" events and put models in the right state");
+ XBT_DEBUG
+ ("First Run! Let's \"purge\" events and put models in the right state");
while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
if (next_event_date > NOW)
break;
while ((event =
tmgr_history_get_next_event_leq(history, next_event_date,
- &value, (void **) &resource))) {
+ &value,
+ (void **) &resource))) {
resource->model->model_private->update_resource_state(resource,
event, value,
NOW);
}
}
xbt_dynar_foreach(model_list, iter, model)
- model->model_private->update_actions_state(NOW, 0.0);
+ model->model_private->update_actions_state(NOW, 0.0);
}
-double surf_solve(void)
+double surf_solve(double max_date)
{
- double min = -1.0;
+ double min = -1.0; /* duration */
double next_event_date = -1.0;
double model_next_action_end = -1.0;
double value = -1.0;
tmgr_trace_event_t event = NULL;
unsigned int iter;
- min = -1.0;
+ if (max_date != -1.0 && max_date != NOW) {
+ min = max_date - NOW;
+ }
- DEBUG0("Looking for next action end");
+ XBT_DEBUG("Looking for next action end for all models except NS3");
xbt_dynar_foreach(model_list, iter, model) {
- DEBUG1("Running for Resource [%s]", model->name);
- model_next_action_end = model->model_private->share_resources(NOW);
- DEBUG2("Resource [%s] : next action end = %f",
- model->name, model_next_action_end);
- if (((min < 0.0) || (model_next_action_end < min))
- && (model_next_action_end >= 0.0))
- min = model_next_action_end;
+ if(strcmp(model->name,"network NS3") ){
+ XBT_DEBUG("Running for Resource [%s]", model->name);
+ model_next_action_end = model->model_private->share_resources(NOW);
+ XBT_DEBUG("Resource [%s] : next action end = %f",
+ model->name, model_next_action_end);
+ if (((min < 0.0) || (model_next_action_end < min))
+ && (model_next_action_end >= 0.0))
+ min = model_next_action_end;
+ }
}
- DEBUG1("Next action end : %f", min);
- DEBUG0("Looking for next event");
- while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
- DEBUG1("Next TRACE event : %f", next_event_date);
- if ((min != -1.0) && (next_event_date > NOW + min))
- break;
- DEBUG0("Updating models");
+ XBT_DEBUG("Min for resources (remember that NS3 dont update that value) : %f", min);
+
+ XBT_DEBUG("Looking for next trace event");
+
+ do {
+ XBT_DEBUG("Next TRACE event : %f", next_event_date);
+
+ next_event_date = tmgr_history_next_date(history);
+
+ if(surf_network_model->name && !strcmp(surf_network_model->name,"network NS3")){
+ if(next_event_date!=-1.0 && min!=-1.0) {
+ min = MIN(next_event_date - NOW, min);
+ } else{
+ min = MAX(next_event_date - NOW, min);
+ }
+
+ XBT_DEBUG("Run for NS3 at most %f", min);
+ // run until min or next flow
+ model_next_action_end = surf_network_model->model_private->share_resources(min);
+
+ XBT_DEBUG("Min for NS3 : %f", model_next_action_end);
+ if(model_next_action_end>=0.0)
+ min = model_next_action_end;
+ }
+
+ if (next_event_date == -1.0) {
+ XBT_DEBUG("no next TRACE event. Stop searching for it");
+ break;
+ }
+
+ if ((min != -1.0) && (next_event_date > NOW + min)) break;
+
+ XBT_DEBUG("Updating models");
while ((event =
tmgr_history_get_next_event_leq(history, next_event_date,
- &value, (void **) &resource))) {
+ &value,
+ (void **) &resource))) {
if (resource->model->model_private->resource_used(resource)) {
min = next_event_date - NOW;
- DEBUG1
- ("This event will modify model state. Next event set to %f", min);
+ XBT_DEBUG
+ ("This event will modify model state. Next event set to %f",
+ min);
}
/* update state of model_obj according to new value. Does not touch lmm.
It will be modified if needed when updating actions */
- DEBUG2("Calling update_resource_state for resource %s with min %lf",
+ XBT_DEBUG("Calling update_resource_state for resource %s with min %lf",
resource->model->name, min);
- resource->model->model_private->update_resource_state(resource, event,
- value, NOW + min);
+ resource->model->model_private->update_resource_state(resource,
+ event, value,
+ NOW + min);
}
- }
+ } while (1);
- /* FIXME: Moved this test to here to avoid stoping simulation if there are actions running on cpus and all cpus are with availability = 0.
+ /* FIXME: Moved this test to here to avoid stopping simulation if there are actions running on cpus and all cpus are with availability = 0.
* This may cause an infinite loop if one cpu has a trace with periodicity = 0 and the other a trace with periodicity > 0.
* The options are: all traces with same periodicity(0 or >0) or we need to change the way how the events are managed */
- if (min < 0.0)
+ if (min == -1.0) {
+ XBT_DEBUG("No next event at all. Bail out now.");
return -1.0;
+ }
- DEBUG1("Duration set to %f", min);
+ XBT_DEBUG("Duration set to %f", min);
NOW = NOW + min;
xbt_dynar_foreach(model_list, iter, model)
- model->model_private->update_actions_state(NOW, min);
+ model->model_private->update_actions_state(NOW, min);
+
+#ifdef HAVE_TRACING
+ TRACE_paje_dump_buffer (0);
+#endif
return min;
}
-double surf_get_clock(void)
+XBT_INLINE double surf_get_clock(void)
{
return NOW;
}
