-/* $Id$ */
-
-/* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
+/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 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. */
+#include <ctype.h>
+
#include "surf_private.h"
#include "xbt/module.h"
+#include "mc/mc.h"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf,
+ "Logging specific to SURF (kernel)");
+
+/* Additional declarations for Windows potability. */
+
+#ifndef MAX_DRIVE
+#define MAX_DRIVE 26
+#endif
+
+#ifdef _XBT_WIN32
+#include <windows.h>
+static const char *disk_drives_letter_table[MAX_DRIVE] = {
+ "A:\\",
+ "B:\\",
+ "C:\\",
+ "D:\\",
+ "E:\\",
+ "F:\\",
+ "G:\\",
+ "H:\\",
+ "I:\\",
+ "J:\\",
+ "K:\\",
+ "L:\\",
+ "M:\\",
+ "N:\\",
+ "O:\\",
+ "P:\\",
+ "Q:\\",
+ "R:\\",
+ "S:\\",
+ "T:\\",
+ "U:\\",
+ "V:\\",
+ "W:\\",
+ "X:\\",
+ "Y:\\",
+ "Z:\\"
+};
+#endif /* #ifdef _XBT_WIN32 */
+
+/*
+ * Returns the initial path. On Windows the initial path is
+ * the current directory for the current process in the other
+ * case the function returns "./" that represents the current
+ * directory on Unix/Linux platforms.
+ */
+
+const char *__surf_get_initial_path(void)
+{
+
+#ifdef _XBT_WIN32
+ unsigned i;
+ char current_directory[MAX_PATH + 1] = { 0 };
+ unsigned int len = GetCurrentDirectory(MAX_PATH + 1, current_directory);
+ char root[4] = { 0 };
+
+ if (!len)
+ return NULL;
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_global, surf,
- "Logging specific to the SURF global module");
+ strncpy(root, current_directory, 3);
+ for (i = 0; i < MAX_DRIVE; i++) {
+ if (toupper(root[0]) == disk_drives_letter_table[i][0])
+ return disk_drives_letter_table[i];
+ }
+
+ return NULL;
+#else
+ return "./";
+#endif
+}
-static double NOW = 0;
+/* The __surf_is_absolute_file_path() returns 1 if
+ * file_path is a absolute file path, in the other
+ * case the function returns 0.
+ */
+int __surf_is_absolute_file_path(const char *file_path)
+{
+#ifdef _XBT_WIN32
+ WIN32_FIND_DATA wfd = { 0 };
+ HANDLE hFile = FindFirstFile(file_path, &wfd);
+
+ if (INVALID_HANDLE_VALUE == hFile)
+ return 0;
+
+ FindClose(hFile);
+ return 1;
+#else
+ return (file_path[0] == '/');
+#endif
+}
-xbt_dynar_t resource_list = NULL;
+double NOW = 0;
+
+xbt_dynar_t model_list = NULL;
tmgr_history_t history = NULL;
lmm_system_t maxmin_system = NULL;
xbt_dynar_t surf_path = NULL;
-double generic_maxmin_share_resources(xbt_swag_t running_actions,
- size_t offset)
+/* 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",
+ "Simplistic network model where all communication take a constant time (one second)",
+ NULL, surf_network_model_init_Constant},
+ {"CM02",
+ "Realistic network model with lmm_solve and no correction factors",
+ NULL, surf_network_model_init_CM02},
+ {"LV08",
+ "Realistic network model with lmm_solve and these correction factors: latency*=10.4, bandwidth*=.92, S=8775",
+ NULL, surf_network_model_init_LegrandVelho},
+ {"SMPI",
+ "Realistic network model with lmm_solve and correction factors on three intervals (< 1KiB, < 64 KiB, >= 64 KiB)",
+ NULL, surf_network_model_init_SMPI},
+#ifdef HAVE_GTNETS
+ {"GTNets",
+ "Network Pseudo-model using the GTNets simulator instead of an analytic model",
+ NULL, surf_network_model_init_GTNETS},
+#endif
+ {"Reno",
+ "Model using lagrange_solve instead of lmm_solve (experts only)", NULL,
+ surf_network_model_init_Reno},
+ {"Reno2",
+ "Model using lagrange_solve instead of lmm_solve (experts only)", NULL,
+ surf_network_model_init_Reno2},
+ {"Vegas",
+ "Model using lagrange_solve instead of lmm_solve (experts only)", NULL,
+ surf_network_model_init_Vegas},
+ {NULL, NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+s_surf_model_description_t surf_cpu_model_description[] = {
+ {"Cas01_fullupdate", "CPU classical model time=size/power", NULL,
+ surf_cpu_model_init_Cas01},
+ {"Cas01",
+ "Variation of Cas01_fullupdate with partial invalidation optimization of lmm system. Should produce the same values, only faster",
+ NULL, surf_cpu_model_init_Cas01_im},
+ {"CpuTI",
+ "Variation of Cas01 with also trace integration. Should produce the same values, only faster if you use availability traces",
+ NULL, surf_cpu_model_init_ti},
+ {NULL, NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+s_surf_model_description_t surf_workstation_model_description[] = {
+ {"CLM03",
+ "Default workstation model, using LV08 and CM02 as network and CPU",
+ NULL, surf_workstation_model_init_CLM03, create_workstations},
+ {"compound",
+ "Workstation model allowing you to use other network and CPU models",
+ NULL, surf_workstation_model_init_compound, create_workstations},
+ {"ptask_L07", "Workstation model with better parallel task modeling",
+ NULL, surf_workstation_model_init_ptask_L07, NULL},
+ {NULL, 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)
{
- return generic_maxmin_share_resources2(running_actions, offset,
- maxmin_system);
+ int i = find_model_description(table, name);
+ table[i].model = model;
}
-double generic_maxmin_share_resources2(xbt_swag_t running_actions,
- size_t offset,
- lmm_system_t sys)
+/** Displays the long description of all registered models, and quit */
+void model_help(const char *category, s_surf_model_description_t * table)
+{
+ 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,
+ const char *name)
+{
+ int i;
+ char *name_list = NULL;
+
+ for (i = 0; table[i].name; i++)
+ if (!strcmp(name, table[i].name)) {
+ return i;
+ }
+ 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);
+ strcat(name_list, ", ");
+ strcat(name_list, table[i].name);
+ }
+ xbt_assert2(0, "Model '%s' is invalid! Valid models are: %s.", name,
+ name_list);
+}
+
+double generic_maxmin_share_resources(xbt_swag_t running_actions,
+ size_t offset,
+ lmm_system_t sys,
+ void (*solve) (lmm_system_t))
{
surf_action_t action = NULL;
double min = -1;
double value = -1;
#define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
- lmm_solve(sys);
+ xbt_assert0(solve, "Give me a real solver function!");
+ solve(sys);
xbt_swag_foreach(action, running_actions) {
value = lmm_variable_getvalue(VARIABLE(action));
return -1.0;
if (value > 0) {
- min = value = action->remains / value;
+ if (action->remains > 0)
+ min = action->remains / value;
+ else
+ min = 0.0;
if ((action->max_duration >= 0) && (action->max_duration < min))
min = action->max_duration;
} else
action = xbt_swag_getNext(action, running_actions->offset)) {
value = lmm_variable_getvalue(VARIABLE(action));
if (value > 0) {
- value = action->remains / value;
- if (value < min)
- min = value;
+ if (action->remains > 0)
+ value = action->remains / value;
+ else
+ value = 0.0;
+ if (value < min) {
+ min = value;
+ DEBUG2("Updating min (value) with %p: %f", action, min);
+ }
}
- if ((action->max_duration >= 0) && (action->max_duration < min))
+ if ((action->max_duration >= 0) && (action->max_duration < min)) {
min = action->max_duration;
+ DEBUG2("Updating min (duration) with %p: %f", action, min);
+ }
}
+ DEBUG1("min value : %f", min);
+
#undef VARIABLE
return min;
}
-e_surf_action_state_t surf_action_get_state(surf_action_t action)
-{
- surf_action_state_t action_state =
- &(action->resource_type->common_public->states);
-
- if (action->state_set == action_state->ready_action_set)
- return SURF_ACTION_READY;
- if (action->state_set == action_state->running_action_set)
- return SURF_ACTION_RUNNING;
- if (action->state_set == action_state->failed_action_set)
- return SURF_ACTION_FAILED;
- if (action->state_set == action_state->done_action_set)
- return SURF_ACTION_DONE;
- return SURF_ACTION_NOT_IN_THE_SYSTEM;
-}
-
-void surf_action_free(surf_action_t * action)
-{
- (*action)->resource_type->common_public->action_cancel(*action);
- xbt_free(*action);
- *action = NULL;
-}
-
-void surf_action_change_state(surf_action_t action,
- e_surf_action_state_t state)
-{
- surf_action_state_t action_state =
- &(action->resource_type->common_public->states);
-
- xbt_swag_remove(action, action->state_set);
-
- if (state == SURF_ACTION_READY)
- action->state_set = action_state->ready_action_set;
- else if (state == SURF_ACTION_RUNNING)
- action->state_set = action_state->running_action_set;
- else if (state == SURF_ACTION_FAILED)
- action->state_set = action_state->failed_action_set;
- else if (state == SURF_ACTION_DONE)
- action->state_set = action_state->done_action_set;
- else
- action->state_set = NULL;
-
- if (action->state_set)
- xbt_swag_insert(action, action->state_set);
-}
-
-void surf_action_set_data(surf_action_t action,
- void *data)
-{
- action->data=data;
-}
+XBT_LOG_EXTERNAL_CATEGORY(surf_cpu);
+XBT_LOG_EXTERNAL_CATEGORY(surf_kernel);
+XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange);
+XBT_LOG_EXTERNAL_CATEGORY(surf_lagrange_dichotomy);
+XBT_LOG_EXTERNAL_CATEGORY(surf_maxmin);
+XBT_LOG_EXTERNAL_CATEGORY(surf_network);
+XBT_LOG_EXTERNAL_CATEGORY(surf_trace);
+XBT_LOG_EXTERNAL_CATEGORY(surf_parse);
+XBT_LOG_EXTERNAL_CATEGORY(surf_timer);
+XBT_LOG_EXTERNAL_CATEGORY(surf_workstation);
+XBT_LOG_EXTERNAL_CATEGORY(surf_config);
+XBT_LOG_EXTERNAL_CATEGORY(surf_route);
+
+#ifdef HAVE_GTNETS
+XBT_LOG_EXTERNAL_CATEGORY(surf_network_gtnets);
+#endif
void surf_init(int *argc, char **argv)
{
- int i,j;
- char *opt;
+ /* 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_lagrange, surf);
+ XBT_LOG_CONNECT(surf_lagrange_dichotomy, surf_lagrange);
+ XBT_LOG_CONNECT(surf_maxmin, surf);
+ XBT_LOG_CONNECT(surf_network, surf);
+ XBT_LOG_CONNECT(surf_trace, surf);
+ XBT_LOG_CONNECT(surf_parse, surf);
+ XBT_LOG_CONNECT(surf_timer, surf);
+ XBT_LOG_CONNECT(surf_workstation, surf);
+ XBT_LOG_CONNECT(surf_config, surf);
+ XBT_LOG_CONNECT(surf_route, surf);
+
+#ifdef HAVE_GTNETS
+ XBT_LOG_CONNECT(surf_network_gtnets, surf);
+#endif
xbt_init(argc, argv);
- if (!surf_path) {
- const char *initial_path = "./";
- surf_path = xbt_dynar_new(sizeof(char*), NULL);
- xbt_dynar_push(surf_path,&initial_path);
-
- for (i=1; i<*argc; i++) {
- if (!strncmp(argv[i],"--surf-path=",strlen("--surf-path="))) {
- opt=strchr(argv[i],'=');
- opt++;
- xbt_dynar_push(surf_path,&opt);
- /*remove this from argv*/
- for (j=i+1; j<*argc; j++) {
- argv[j-1] = argv[j];
- }
- argv[j-1] = NULL;
- (*argc)--;
- i--; /* compensate effect of next loop incrementation */
- }
- }
- }
- if (!resource_list)
- resource_list = xbt_dynar_new(sizeof(surf_resource_private_t), NULL);
+ if (!model_list)
+ model_list = xbt_dynar_new(sizeof(surf_model_private_t), NULL);
if (!history)
history = tmgr_history_new();
- if (!maxmin_system)
- maxmin_system = lmm_system_new();
+
+ surf_config_init(argc, argv);
+ if (MC_IS_ENABLED)
+ MC_memory_init();
}
-static char* path_name = NULL;
+#ifdef _XBT_WIN32
+# define FILE_DELIM "\\"
+#else
+# define FILE_DELIM "/" /* FIXME: move to better location */
+#endif
+
FILE *surf_fopen(const char *name, const char *mode)
{
- int i;
- char* path = NULL;
+ unsigned int cpt;
+ char *path_elm = NULL;
+ char *buff;
FILE *file = NULL;
- xbt_assert1((name!=NULL), "Need a real file name, not \"%s\"\n",name);
+ xbt_assert(name);
- xbt_assert0(surf_path,"surf_init has to be called before using surf_fopen");
- if(!path_name) path_name=xbt_new0(char,strlen(name)+1);
+ if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
+ return fopen(name, mode);
- xbt_dynar_foreach(surf_path,i,path) {
- if(strlen(path_name)<strlen(path)+strlen(name)+2)
- path_name=xbt_realloc(path_name,strlen(path)+strlen(name)+2);
- strcpy(path_name, path);
- strcat(path_name,"/");
- strcat(path_name,name);
- file = fopen(path_name,mode);
- if(file) return file;
+ /* search relative files in the path */
+ xbt_dynar_foreach(surf_path, cpt, path_elm) {
+ buff = bprintf("%s" FILE_DELIM "%s", path_elm, name);
+ file = fopen(buff, mode);
+ free(buff);
+
+ if (file)
+ return file;
}
- return file;
+ return NULL;
}
-void surf_finalize(void)
+void surf_exit(void)
{
- int i;
- surf_resource_t resource = NULL;
+ unsigned int iter;
+ surf_model_t model = NULL;
- xbt_dynar_foreach(resource_list, i, resource) {
- resource->common_private->finalize();
- }
+ surf_config_finalize();
+
+ xbt_dynar_foreach(model_list, iter, model)
+ model->model_private->finalize();
+ xbt_dynar_free(&model_list);
if (maxmin_system) {
lmm_system_free(maxmin_system);
tmgr_history_free(history);
history = NULL;
}
- if (resource_list)
- xbt_dynar_free(&resource_list);
- if(surf_path)
+ if (surf_path)
xbt_dynar_free(&surf_path);
tmgr_finalize();
surf_parse_lex_destroy();
- if(path_name) {
- xbt_free(path_name);
- path_name = NULL;
- }
+ surf_parse_free_callbacks();
+ NOW = 0; /* Just in case the user plans to restart the simulation afterward */
}
-double surf_solve(void)
+void surf_presolve(void)
{
- static int first_run = 1;
-
- double min = -1.0;
double next_event_date = -1.0;
- double resource_next_action_end = -1.0;
+ tmgr_trace_event_t event = NULL;
double value = -1.0;
- surf_resource_object_t resource_obj = NULL;
surf_resource_t resource = NULL;
- tmgr_trace_event_t event = NULL;
- int i;
+ surf_model_t model = NULL;
+ unsigned int iter;
- if (first_run) {
- 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_obj))) {
- resource_obj->resource->common_private->
- update_resource_state(resource_obj, event, value);
- }
- }
- xbt_dynar_foreach(resource_list, i, resource) {
- resource->common_private->update_actions_state(NOW, 0.0);
+ DEBUG0
+ ("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))) {
+ resource->model->model_private->update_resource_state(resource,
+ event, value,
+ NOW);
}
- first_run = 0;
- return 0.0;
}
+ xbt_dynar_foreach(model_list, iter, model)
+ model->model_private->update_actions_state(NOW, 0.0);
+}
- min = -1.0;
+double surf_solve(double max_date)
+{
+ double min = -1.0; /* duration */
+ double next_event_date = -1.0;
+ double model_next_action_end = -1.0;
+ double value = -1.0;
+ surf_resource_t resource = NULL;
+ surf_model_t model = NULL;
+ tmgr_trace_event_t event = NULL;
+ unsigned int iter;
- xbt_dynar_foreach(resource_list, i, resource) {
- resource_next_action_end =
- resource->common_private->share_resources(NOW);
- if (((min < 0.0) || (resource_next_action_end < min))
- && (resource_next_action_end >= 0.0))
- min = resource_next_action_end;
+ if (max_date != -1.0 && max_date != NOW) {
+ min = max_date - NOW;
}
- if (min < 0.0)
- return -1.0;
+ DEBUG0("Looking for next action end");
+ 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;
+ }
+ DEBUG1("Next action end : %f", min);
+ DEBUG0("Looking for next event");
while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
- if (next_event_date > NOW + min)
+ DEBUG1("Next TRACE event : %f", next_event_date);
+ if ((min != -1.0) && (next_event_date > NOW + min))
break;
+ DEBUG0("Updating models");
while ((event =
- tmgr_history_get_next_event_leq(history, next_event_date,
- &value,
- (void **) &resource_obj))) {
- if (resource_obj->resource->common_private->
- resource_used(resource_obj)) {
- min = next_event_date - NOW;
+ tmgr_history_get_next_event_leq(history, next_event_date,
+ &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);
}
- /* update state of resource_obj according to new value. Does not touch lmm.
+ /* update state of model_obj according to new value. Does not touch lmm.
It will be modified if needed when updating actions */
- resource_obj->resource->common_private->
- update_resource_state(resource_obj, event, value);
+ DEBUG2("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);
}
}
- xbt_dynar_foreach(resource_list, i, resource) {
- resource->common_private->update_actions_state(NOW, min);
- }
+ /* FIXME: Moved this test to here to avoid stoping 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)
+ return -1.0;
+
+ DEBUG1("Duration set to %f", min);
NOW = NOW + min;
+ xbt_dynar_foreach(model_list, iter, model)
+ model->model_private->update_actions_state(NOW, min);
+
return min;
}
-double surf_get_clock(void)
+XBT_INLINE double surf_get_clock(void)
{
return NOW;
}
