-/* Authors: Arnaud Legrand */
+/* $Id$ */
+
+/* Copyright (c) 2004 Arnaud Legrand. 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. */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
+#include <ctype.h>
#include "surf_private.h"
+#include "xbt/module.h"
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf,
+ "Logging specific to SURF (kernel)");
+
+int use_sdp_solver = 0;
+int use_lagrange_solver = 0;
-static xbt_heap_float_t NOW=0;
+/* Additional declarations for Windows potability. */
+
+#ifndef MAX_DRIVE
+#define MAX_DRIVE 26
+#endif
+
+#ifdef _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 _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 _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;
+
+ 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
+}
+
+/* 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 _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
+}
+
+typedef struct surf_resource_object {
+ surf_resource_t resource;
+} s_surf_resource_object_t, *surf_resource_object_t;
+
+static double NOW = 0;
xbt_dynar_t resource_list = NULL;
tmgr_history_t history = NULL;
lmm_system_t maxmin_system = NULL;
+xbt_dynar_t surf_path = NULL;
+const char *surf_action_state_names[6] = {
+ "SURF_ACTION_READY",
+ "SURF_ACTION_RUNNING",
+ "SURF_ACTION_FAILED",
+ "SURF_ACTION_DONE",
+ "SURF_ACTION_TO_FREE",
+ "SURF_ACTION_NOT_IN_THE_SYSTEM"
+};
+
+int surf_network_resource_description_size = 3
+#ifdef HAVE_GTNETS
+ + 1
+#endif
+#ifdef HAVE_SDP
+ + 1
+#endif
+ ;
+s_surf_resource_description_t surf_network_resource_description[] = {
+ {"CM02", NULL, surf_network_resource_init_CM02},
+#ifdef HAVE_GTNETS
+ {"GTNets", NULL, surf_network_resource_init_GTNETS},
+#endif
+#ifdef HAVE_SDP
+ {"SDP", NULL, surf_network_resource_init_SDP},
+#endif
+ {"Reno", NULL, surf_network_resource_init_Reno},
+ {"Vegas", NULL, surf_network_resource_init_Vegas}
+};
+
+int surf_cpu_resource_description_size = 1;
+s_surf_resource_description_t surf_cpu_resource_description[] = {
+ {"Cas01", NULL, surf_cpu_resource_init_Cas01},
+};
+
+int surf_workstation_resource_description_size = 4;
+s_surf_resource_description_t surf_workstation_resource_description[] = {
+ {"CLM03", NULL, surf_workstation_resource_init_CLM03},
+ {"KCCFLN05", NULL, surf_workstation_resource_init_KCCFLN05},
+ {"compound", NULL, surf_workstation_resource_init_compound},
+ {"ptask_L07", NULL, surf_workstation_resource_init_ptask_L07}
+};
+
+void update_resource_description(s_surf_resource_description_t * table,
+ int table_size,
+ const char *name,
+ surf_resource_t resource)
+{
+ int i = find_resource_description(table, table_size, name);
+ table[i].resource = resource;
+}
+
+int find_resource_description(s_surf_resource_description_t * table,
+ int table_size, const char *name)
+{
+ int i;
+ char *name_list = NULL;
+
+ for (i = 0; i < table_size; i++)
+ if (!strcmp(name, table[i].name)) {
+ return i;
+ }
+ name_list = strdup(table[0].name);
+ for (i = 1; i < table_size; 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)
+{
+ return generic_maxmin_share_resources2(running_actions, offset,
+ maxmin_system, lmm_solve);
+}
+
+double generic_maxmin_share_resources2(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))))
+
+ xbt_assert0(solve, "Give me a real solver function!");
+ solve(sys);
+
+ xbt_swag_foreach(action, running_actions) {
+ value = lmm_variable_getvalue(VARIABLE(action));
+ if ((value > 0) || (action->max_duration >= 0))
+ break;
+ }
+
+ if (!action)
+ return -1.0;
+
+ if (value > 0) {
+ min = action->remains / value;
+ if ((action->max_duration >= 0) && (action->max_duration < min))
+ min = action->max_duration;
+ } else
+ min = action->max_duration;
+
+ DEBUG5("Found action (%p: duration = %f, remains = %f, value = %f) ! %f",
+ action, action->max_duration, action->remains, value, min);
+
+ for (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) {
+ value = action->remains / value;
+ if (value < min) {
+ min = value;
+ DEBUG2("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);
+ }
+ }
+ 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->states);
-
- if(action->state_set == action_state->ready_action_set)
+ 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)
+ if (action->state_set == action_state->running_action_set)
return SURF_ACTION_RUNNING;
- if(action->state_set == action_state->failed_action_set)
+ if (action->state_set == action_state->failed_action_set)
return SURF_ACTION_FAILED;
- if(action->state_set == action_state->done_action_set)
+ 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)
+double surf_action_get_start_time(surf_action_t action)
{
- (*action)->resource_type->action_cancel(*action);
- xbt_free(*action);
- *action=NULL;
+ return action->start;
}
-void surf_action_change_state(surf_action_t action, e_surf_action_state_t state)
+double surf_action_get_finish_time(surf_action_t action)
{
- surf_action_state_t action_state = &(action->resource_type->states);
+ return action->finish;
+}
+void surf_action_free(surf_action_t * action)
+{
+ (*action)->resource_type->common_public->action_cancel(*action);
+ 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_IN2("(%p,%s)", action, surf_action_state_names[state]);
xbt_swag_remove(action, action->state_set);
- if(state == SURF_ACTION_READY)
+ if (state == SURF_ACTION_READY)
action->state_set = action_state->ready_action_set;
- else if(state == SURF_ACTION_RUNNING)
+ else if (state == SURF_ACTION_RUNNING)
action->state_set = action_state->running_action_set;
- else if(state == SURF_ACTION_FAILED)
+ else if (state == SURF_ACTION_FAILED)
action->state_set = action_state->failed_action_set;
- else if(state == SURF_ACTION_DONE)
+ else if (state == SURF_ACTION_DONE)
action->state_set = action_state->done_action_set;
- else action->state_set = NULL;
+ else
+ action->state_set = NULL;
+
+ if (action->state_set)
+ xbt_swag_insert(action, action->state_set);
+ XBT_OUT;
+}
+
+void surf_action_set_data(surf_action_t action, void *data)
+{
+ action->data = data;
+}
+
+void surf_init(int *argc, char **argv)
+{
+ int i, j;
+ char *opt;
+
+ const char *initial_path;
+
+ xbt_init(argc, argv);
+ if (!surf_path) {
+
+ /* retrieves the current directory of the current process */
+ initial_path = __surf_get_initial_path();
+
+ xbt_assert0((initial_path),
+ "__surf_get_initial_path() failed! Can't resolves current Windows directory");
+
+ 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 (!history)
+ history = tmgr_history_new();
+ if (!maxmin_system)
+ maxmin_system = lmm_system_new();
+}
+
+static char *path_name = NULL;
+FILE *surf_fopen(const char *name, const char *mode)
+{
+ int i;
+ char *path = NULL;
+ FILE *file = NULL;
+ int path_name_len = 0; /* don't count '\0' */
+
+ xbt_assert0(name, "Need a non-NULL file name");
+
+ xbt_assert0(surf_path,
+ "surf_init has to be called before using surf_fopen");
- if(action->state_set) xbt_swag_insert(action, action->state_set);
+ if (__surf_is_absolute_file_path(name)) { /* don't mess with absolute file names */
+ return fopen(name, mode);
+
+ } else { /* search relative files in the path */
+
+ if (!path_name) {
+ path_name_len = strlen(name);
+ path_name = xbt_new0(char, path_name_len + 1);
+ }
+
+ xbt_dynar_foreach(surf_path, i, path) {
+ if (path_name_len < strlen(path) + strlen(name) + 1) {
+ path_name_len = strlen(path) + strlen(name) + 1; /* plus '/' */
+ path_name = xbt_realloc(path_name, path_name_len + 1);
+ }
+ sprintf(path_name, "%s/%s", path, name);
+ file = fopen(path_name, mode);
+ if (file)
+ return file;
+ }
+ }
+ return file;
}
-void surf_init(void)
+void surf_exit(void)
{
- if(!resource_list) resource_list = xbt_dynar_new(sizeof(surf_resource_t), NULL);
- if(!history) history = tmgr_history_new();
- if(!maxmin_system) maxmin_system = lmm_system_new();
+ int i;
+ surf_resource_t resource = NULL;
+
+ xbt_dynar_foreach(resource_list, i, resource) {
+ resource->common_private->finalize();
+ }
+
+ if (maxmin_system) {
+ lmm_system_free(maxmin_system);
+ maxmin_system = NULL;
+ }
+ if (history) {
+ tmgr_history_free(history);
+ history = NULL;
+ }
+ if (resource_list)
+ xbt_dynar_free(&resource_list);
+
+ if (surf_path)
+ xbt_dynar_free(&surf_path);
+
+ tmgr_finalize();
+ surf_parse_lex_destroy();
+ if (path_name) {
+ free(path_name);
+ path_name = NULL;
+ }
+ xbt_exit();
}
-xbt_heap_float_t surf_solve(void)
+double surf_solve(void)
{
- xbt_heap_float_t min = -1.0;
- xbt_heap_float_t next_event_date = -1.0;
- xbt_heap_float_t resource_next_action_end = -1.0;
- xbt_maxmin_float_t value = -1.0;
+ static int first_run = 1;
+
+ double min = -1.0;
+ double next_event_date = -1.0;
+ double resource_next_action_end = -1.0;
+ double value = -1.0;
+ surf_resource_object_t resource_obj = NULL;
surf_resource_t resource = NULL;
+ tmgr_trace_event_t event = NULL;
int i;
- xbt_dynar_foreach (resource_list,i,resource) {
- resource_next_action_end = resource->share_resources(NOW);
- if((min<0) || (resource_next_action_end<min))
+ if (first_run) {
+ DEBUG0
+ ("First Run! Let's \"purge\" events and put resources 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_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);
+ }
+ first_run = 0;
+ return 0.0;
+ }
+
+ min = -1.0;
+
+ DEBUG0("Looking for next action end");
+ xbt_dynar_foreach(resource_list, i, resource) {
+ DEBUG1("Running for Resource [%s]", resource->common_public->name);
+ resource_next_action_end =
+ resource->common_private->share_resources(NOW);
+ DEBUG2("Resource [%s] : next action end = %f",
+ resource->common_public->name, resource_next_action_end);
+ if (((min < 0.0) || (resource_next_action_end < min))
+ && (resource_next_action_end >= 0.0))
min = resource_next_action_end;
}
+ DEBUG1("Next action end : %f", min);
+
+ if (min < 0.0)
+ return -1.0;
+ DEBUG0("Looking for next event");
while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
- if(next_event_date > NOW+min) break;
- while (tmgr_history_get_next_event_leq(history, next_event_date,
- &value, (void **) &resource)) {
- if(surf_cpu_resource->resource.resource_used(resource)) {
- min = next_event_date-NOW;
+ DEBUG1("Next event : %f", next_event_date);
+ if (next_event_date > NOW + min)
+ break;
+ DEBUG0("Updating resources");
+ 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;
+ DEBUG1
+ ("This event will modify resource state. Next event set to %f",
+ min);
}
+ /* update state of resource_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);
}
}
- xbt_dynar_foreach (resource_list,i,resource) {
- resource->update_state(NOW, min);
- }
+ DEBUG1("Duration set to %f", min);
+
+ NOW = NOW + min;
- NOW=NOW+min;
+ xbt_dynar_foreach(resource_list, i, resource) {
+ resource->common_private->update_actions_state(NOW, min);
+ }
return min;
}
-xbt_heap_float_t surf_get_clock(void)
+double surf_get_clock(void)
{
return NOW;
}
