+/* model_list_invoke contains only surf_workstation and surf_vm_workstation.
+ * The callback functions of cpu_model and network_model will be called from
+ * those of these workstation models. */
+xbt_dynar_t model_list = NULL; /* for destroying all models correctly */
+xbt_dynar_t model_list_invoke = NULL; /* for invoking callbacks */
+
+tmgr_history_t history = NULL;
+lmm_system_t maxmin_system = NULL;
+xbt_dynar_t surf_path = NULL;
+xbt_dynar_t host_that_restart = NULL;
+xbt_dict_t watched_hosts_lib;
+
+/* Don't forget to update the option description in smx_config when you change this */
+s_surf_model_description_t surf_network_model_description[] = {
+ {"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",
+ "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",
+ "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",
+ "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[] = {
+ {"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 */
+};
+
+s_surf_model_description_t surf_vm_workstation_model_description[] = {
+ {"default",
+ "Default vm workstation model.)",
+ surf_vm_workstation_model_init_current_default},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+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 */
+};
+
+s_surf_model_description_t surf_storage_model_description[] = {
+ {"default",
+ "Simplistic storage model.",
+ surf_storage_model_init_default},
+ {NULL, NULL, NULL} /* this array must be NULL terminated */
+};
+
+#ifdef CONTEXT_THREADS
+static xbt_parmap_t surf_parmap = NULL; /* parallel map on models */
+#endif
+
+static double *surf_mins = NULL; /* return value of share_resources for each model */
+
+double NOW = 0;
+
+double surf_get_clock(void)
+{
+ return NOW;
+}
+
+#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)
+{
+ unsigned int cpt;
+ char *path_elm = NULL;
+ char *buff;
+ FILE *file = NULL;
+
+ xbt_assert(name);
+
+ if (__surf_is_absolute_file_path(name)) /* don't mess with absolute file names */
+ return fopen(name, mode);
+
+ /* 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 NULL;
+}
+
+/*
+ * 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;
+
+ 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 _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
+}
+
+/** 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 = (char *) xbt_realloc(name_list, strlen(name_list) + strlen(table[i].name) + 3);
+ strcat(name_list, ", ");
+ strcat(name_list, table[i].name);
+ }
+ xbt_die("Model '%s' is invalid! Valid models are: %s.", name, name_list);
+ return -1;
+}
+
+static XBT_INLINE void routing_asr_host_free(void *p)
+{
+ delete ((RoutingEdgePtr) p);
+}
+
+static XBT_INLINE void routing_asr_prop_free(void *p)
+{
+ xbt_dict_t elm = (xbt_dict_t) p;
+ xbt_dict_free(&elm);
+}
+
+static XBT_INLINE void surf_cpu_free(void *r)
+{
+ delete dynamic_cast<CpuPtr>(static_cast<ResourcePtr>(r));
+}
+
+static XBT_INLINE void surf_link_free(void *r)
+{
+ delete dynamic_cast<NetworkCm02LinkPtr>(static_cast<ResourcePtr>(r));
+}
+
+static XBT_INLINE void surf_workstation_free(void *r)
+{
+ delete dynamic_cast<WorkstationCLM03Ptr>(static_cast<ResourcePtr>(r));
+}
+
+
+void sg_version(int *ver_major,int *ver_minor,int *ver_patch) {
+ *ver_major = SIMGRID_VERSION_MAJOR;
+ *ver_minor = SIMGRID_VERSION_MINOR;
+ *ver_patch = SIMGRID_VERSION_PATCH;
+}
+
+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();
+ storage_lib = xbt_lib_new();
+ storage_type_lib = xbt_lib_new();
+ watched_hosts_lib = xbt_dict_new_homogeneous(NULL);
+
+ XBT_DEBUG("Add routing levels");
+ ROUTING_HOST_LEVEL = xbt_lib_add_level(host_lib,routing_asr_host_free);
+ ROUTING_ASR_LEVEL = xbt_lib_add_level(as_router_lib,routing_asr_host_free);
+ ROUTING_PROP_ASR_LEVEL = xbt_lib_add_level(as_router_lib,routing_asr_prop_free);
+
+ XBT_DEBUG("Add SURF levels");
+ SURF_CPU_LEVEL = xbt_lib_add_level(host_lib,surf_cpu_free);
+ SURF_WKS_LEVEL = xbt_lib_add_level(host_lib,surf_workstation_free);
+ SURF_LINK_LEVEL = xbt_lib_add_level(link_lib,surf_link_free);
+
+ xbt_init(argc, argv);
+ if (!model_list)
+ model_list = xbt_dynar_new(sizeof(ModelPtr), NULL);
+ if (!model_list_invoke)
+ model_list_invoke = xbt_dynar_new(sizeof(ModelPtr), NULL);
+ if (!history)
+ history = tmgr_history_new();
+
+#ifdef HAVE_TRACING
+ TRACE_add_start_function(TRACE_surf_alloc);
+ TRACE_add_end_function(TRACE_surf_release);
+#endif
+
+ sg_config_init(argc, argv);
+
+ if (MC_is_active())
+ MC_memory_init();
+}
+
+void surf_exit(void)
+{
+ unsigned int iter;
+ ModelPtr model = NULL;
+
+#ifdef HAVE_TRACING
+ TRACE_end(); /* Just in case it was not called by the upper
+ * layer (or there is no upper layer) */
+#endif
+
+ sg_config_finalize();
+
+ xbt_dynar_foreach(model_list, iter, model)
+ delete model;
+ xbt_dynar_free(&model_list);
+ xbt_dynar_free(&model_list_invoke);
+ routing_exit();
+
+ if (maxmin_system) {
+ lmm_system_free(maxmin_system);
+ maxmin_system = NULL;
+ }
+ if (history) {
+ tmgr_history_free(history);
+ history = NULL;
+ }
+
+#ifdef CONTEXT_THREADS
+ xbt_parmap_destroy(surf_parmap);
+ xbt_free(surf_mins);
+ surf_mins = NULL;
+#endif
+ xbt_dynar_free(&host_that_restart);
+ xbt_dynar_free(&surf_path);
+
+ xbt_lib_free(&host_lib);
+ xbt_lib_free(&link_lib);
+ xbt_lib_free(&as_router_lib);
+ xbt_lib_free(&storage_lib);
+ xbt_lib_free(&storage_type_lib);
+
+ xbt_dict_free(&watched_hosts_lib);
+
+ tmgr_finalize();
+ surf_parse_lex_destroy();
+ surf_parse_free_callbacks();
+
+ NOW = 0; /* Just in case the user plans to restart the simulation afterward */
+}