/* 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"
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf,
+ "Logging specific to SURF (kernel)");
+
+int use_sdp_solver=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"
+};
double generic_maxmin_share_resources(xbt_swag_t running_actions,
- size_t offset)
+ size_t offset)
+{
+ return generic_maxmin_share_resources2(running_actions, offset,
+ maxmin_system);
+}
+
+double generic_maxmin_share_resources2(xbt_swag_t running_actions,
+ size_t offset,
+ lmm_system_t sys)
{
surf_action_t action = NULL;
double min = -1;
double value = -1;
#define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + (offset))))
- lmm_solve(maxmin_system);
+ if(!use_sdp_solver)
+ lmm_solve(sys);
+ else {
+#ifdef HAVE_SDP
+ sdp_solve(sys);
+#else
+ xbt_assert0(0, "No CSDP found! You cannot use this model!");
+#endif
+ }
xbt_swag_foreach(action, running_actions) {
value = lmm_variable_getvalue(VARIABLE(action));
return -1.0;
if (value > 0) {
- min = value = action->remains / value;
+ min = action->remains / value;
if ((action->max_duration >= 0) && (action->max_duration < min))
min = action->max_duration;
} else
min = action->max_duration;
+ DEBUG5("Found an 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;
value = lmm_variable_getvalue(VARIABLE(action));
if (value > 0) {
value = action->remains / value;
- if (value < min)
+ 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;
}
return SURF_ACTION_NOT_IN_THE_SYSTEM;
}
+double surf_action_get_start_time(surf_action_t action) {
+ return action->start;
+}
+
+double surf_action_get_finish_time(surf_action_t action) {
+ return action->finish;
+}
+
void surf_action_free(surf_action_t * action)
{
(*action)->resource_type->common_public->action_cancel(*action);
- xbt_free(*action);
+ free(*action);
*action = NULL;
}
{
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 (action->state_set)
xbt_swag_insert(action, action->state_set);
+ XBT_OUT;
}
void surf_action_set_data(surf_action_t action,
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)
maxmin_system = lmm_system_new();
}
-void surf_finalize(void)
+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 (__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_exit(void)
{
int i;
surf_resource_t resource = 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();
}
double surf_solve(void)
int i;
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;
min = -1.0;
+ DEBUG0("Looking for next action end");
xbt_dynar_foreach(resource_list, i, resource) {
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 0.0;
+ return -1.0;
+ DEBUG0("Looking for next event");
while ((next_event_date = tmgr_history_next_date(history)) != -1.0) {
+ 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,
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 */
}
}
+ DEBUG1("Duration set to %f", min);
+
+ NOW = NOW + min;
xbt_dynar_foreach(resource_list, i, resource) {
resource->common_private->update_actions_state(NOW, min);
}
- NOW = NOW + min;
-
return min;
}
