+#include "surf_private.h"
#include "surf.hpp"
+#include "network.hpp"
+#include "cpu.hpp"
+#include "workstation.hpp"
+#include "vm_workstation.hpp"
+#include "simix/smx_host_private.h"
+#include "surf_routing.hpp"
+#include "simgrid/sg_config.h"
+#include "mc/mc.h"
+extern "C" {
+XBT_LOG_NEW_CATEGORY(surf, "All SURF categories");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_kernel, surf,
+ "Logging specific to SURF (kernel)");
+}
+
+/*********
+ * Utils *
+ *********/
+
+/* This function is a pimple that we ought to fix. But it won't be easy.
+ *
+ * The surf_solve() function does properly return the set of actions that changed.
+ * Instead, each model change a global data, and then the caller of surf_solve must
+ * pick into these sets of action_failed and action_done.
+ *
+ * This was not clean but ok as long as we didn't had to restart the processes when the resource comes back up.
+ * We worked by putting sentinel actions on every resources we are interested in,
+ * so that surf informs us if/when the corresponding resource fails.
+ *
+ * But this does not work to get Simix informed of when a resource comes back up, and this is where this pimple comes.
+ * We have a set of resources that are currently down and for which simix needs to know when it comes back up.
+ * And the current function is called *at every simulation step* to sweep over that set, searching for a resource
+ * that was turned back up in the meanwhile. This is UGLY and slow.
+ *
+ * The proper solution would be to not rely on globals for the action_failed and action_done swags.
+ * They must be passed as parameter by the caller (the handling of these actions in simix may let you
+ * think that these two sets can be merged, but their handling in SimDag induce the contrary unless this
+ * simdag code can check by itself whether the action is done of failed -- seems very doable, but yet more
+ * cleanup to do).
+ *
+ * Once surf_solve() is passed the set of actions that changed, you want to add a new set of resources back up
+ * as parameter to this function. You also want to add a boolean field "restart_watched" to each resource, and
+ * make sure that whenever a resource with this field enabled comes back up, it's added to that set so that Simix
+ * sees it and react accordingly. This would kill that need for surf to call simix.
+ *
+ */
+
+static void remove_watched_host(void *key)
+{
+ xbt_dict_remove(watched_hosts_lib, *(char**)key);
+}
+
+/*void surf_watched_hosts(void)
+{
+ char *key;
+ void *host;
+ xbt_dict_cursor_t cursor;
+ xbt_dynar_t hosts = xbt_dynar_new(sizeof(char*), NULL);
+
+ XBT_DEBUG("Check for host SURF_RESOURCE_ON on watched_hosts_lib");
+ xbt_dict_foreach(watched_hosts_lib, cursor, key, host)
+ {
+ if(SIMIX_host_get_state((smx_host_t)host) == SURF_RESOURCE_ON){
+ XBT_INFO("Restart processes on host: %s", SIMIX_host_get_name((smx_host_t)host));
+ SIMIX_host_autorestart((smx_host_t)host);
+ xbt_dynar_push_as(hosts, char*, key);
+ }
+ else
+ XBT_DEBUG("See SURF_RESOURCE_OFF on host: %s",key);
+ }
+ xbt_dynar_map(hosts, remove_watched_host);
+ xbt_dynar_free(&hosts);
+}*/
+
+/* 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 */
+}
/*********
* Model *
*********/
+Model::Model(string name)
+ : p_maxminSystem(0), m_name(name),
+ m_resOnCB(0), m_resOffCB(0),
+ m_actCancelCB(0), m_actSuspendCB(0), m_actResumeCB(0)
+{
+ ActionPtr action = NULL;
+ p_readyActionSet = xbt_swag_new(xbt_swag_offset(*action, p_stateHookup));
+ p_runningActionSet = xbt_swag_new(xbt_swag_offset(*action, p_stateHookup));
+ p_failedActionSet = xbt_swag_new(xbt_swag_offset(*action, p_stateHookup));
+ p_doneActionSet = xbt_swag_new(xbt_swag_offset(*action, p_stateHookup));
+
+ p_modifiedSet = NULL;
+ p_actionHeap = NULL;
+ p_updateMechanism = UM_UNDEFINED;
+ m_selectiveUpdate = 0;
+}
+
+Model::~Model(){
+xbt_swag_free(p_readyActionSet);
+xbt_swag_free(p_runningActionSet);
+xbt_swag_free(p_failedActionSet);
+xbt_swag_free(p_doneActionSet);
+}
+
+double Model::shareResources(double now)
+{
+ //FIXME: set the good function once and for all
+ if (p_updateMechanism == UM_LAZY)
+ return shareResourcesLazy(now);
+ else if (p_updateMechanism == UM_FULL)
+ return shareResourcesFull(now);
+ else
+ xbt_die("Invalid cpu update mechanism!");
+}
+
+double Model::shareResourcesLazy(double now)
+{
+ ActionLmmPtr action = NULL;
+ double min = -1;
+ double value;
+
+ XBT_DEBUG
+ ("Before share resources, the size of modified actions set is %d",
+ xbt_swag_size(p_modifiedSet));
+
+ lmm_solve(p_maxminSystem);
+
+ XBT_DEBUG
+ ("After share resources, The size of modified actions set is %d",
+ xbt_swag_size(p_modifiedSet));
+
+ while((action = static_cast<ActionLmmPtr>(xbt_swag_extract(p_modifiedSet)))) {
+ int max_dur_flag = 0;
+
+ if (action->p_stateSet != p_runningActionSet)
+ continue;
+
+ /* bogus priority, skip it */
+ if (action->m_priority <= 0)
+ continue;
+
+ action->updateRemainingLazy(now);
+
+ min = -1;
+ value = lmm_variable_getvalue(action->p_variable);
+ if (value > 0) {
+ if (action->m_remains > 0) {
+ value = action->m_remains / value;
+ min = now + value;
+ } else {
+ value = 0.0;
+ min = now;
+ }
+ }
+
+ if ((action->m_maxDuration != NO_MAX_DURATION)
+ && (min == -1
+ || action->m_start +
+ action->m_maxDuration < min)) {
+ min = action->m_start +
+ action->m_maxDuration;
+ max_dur_flag = 1;
+ }
+
+ XBT_DEBUG("Action(%p) Start %lf Finish %lf Max_duration %lf", action,
+ action->m_start, now + value,
+ action->m_maxDuration);
+
+ if (min != -1) {
+ action->heapRemove(p_actionHeap);
+ action->heapInsert(p_actionHeap, min, max_dur_flag ? MAX_DURATION : NORMAL);
+ XBT_DEBUG("Insert at heap action(%p) min %lf now %lf", action, min,
+ now);
+ } else DIE_IMPOSSIBLE;
+ }
+
+ //hereafter must have already the min value for this resource model
+ if (xbt_heap_size(p_actionHeap) > 0)
+ min = xbt_heap_maxkey(p_actionHeap) - now;
+ else
+ min = -1;
+
+ XBT_DEBUG("The minimum with the HEAP %lf", min);
+
+ return min;
+}
+
+double Model::shareResourcesFull(double /*now*/) {
+ THROW_UNIMPLEMENTED;
+}
+
+
+double Model::shareResourcesMaxMin(xbt_swag_t running_actions,
+ lmm_system_t sys,
+ void (*solve) (lmm_system_t))
+{
+ void *_action = NULL;
+ ActionLmmPtr action = NULL;
+ double min = -1;
+ double value = -1;
+
+ solve(sys);
+
+ xbt_swag_foreach(_action, running_actions) {
+ action = dynamic_cast<ActionLmmPtr>(static_cast<ActionPtr>(_action));
+ value = lmm_variable_getvalue(action->p_variable);
+ if ((value > 0) || (action->m_maxDuration >= 0))
+ break;
+ }
+
+ if (!_action)
+ return -1.0;
+
+ if (value > 0) {
+ if (action->m_remains > 0)
+ min = action->m_remains / value;
+ else
+ min = 0.0;
+ if ((action->m_maxDuration >= 0) && (action->m_maxDuration < min))
+ min = action->m_maxDuration;
+ } else
+ min = action->m_maxDuration;
+
+
+ for (_action = xbt_swag_getNext(static_cast<ActionPtr>(action), running_actions->offset);
+ _action;
+ _action = xbt_swag_getNext(static_cast<ActionPtr>(action), running_actions->offset)) {
+ action = dynamic_cast<ActionLmmPtr>(static_cast<ActionPtr>(_action));
+ value = lmm_variable_getvalue(action->p_variable);
+ if (value > 0) {
+ if (action->m_remains > 0)
+ value = action->m_remains / value;
+ else
+ value = 0.0;
+ if (value < min) {
+ min = value;
+ XBT_DEBUG("Updating min (value) with %p: %f", action, min);
+ }
+ }
+ if ((action->m_maxDuration >= 0) && (action->m_maxDuration < min)) {
+ min = action->m_maxDuration;
+ XBT_DEBUG("Updating min (duration) with %p: %f", action, min);
+ }
+ }
+ XBT_DEBUG("min value : %f", min);
+
+ return min;
+}
+
+void Model::updateActionsState(double now, double delta)
+{
+ if (p_updateMechanism == UM_FULL)
+ updateActionsStateFull(now, delta);
+ else if (p_updateMechanism == UM_LAZY)
+ updateActionsStateLazy(now, delta);
+ else
+ xbt_die("Invalid cpu update mechanism!");
+}
+
+void Model::updateActionsStateLazy(double /*now*/, double /*delta*/)
+{
+
+}
+
+void Model::updateActionsStateFull(double /*now*/, double /*delta*/)
+{
+
+}
+
+
void Model::addTurnedOnCallback(ResourceCallback rc)
{
m_resOnCB = rc;
* Resource *
************/
-string Resource::getName() {
+Resource::Resource(surf_model_t model, const char *name, xbt_dict_t props)
+ : m_name(xbt_strdup(name)), m_properties(props), p_model(model), m_running(true)
+{}
+
+Resource::Resource()
+: m_name(NULL), m_properties(NULL), p_model(NULL)
+{}
+
+const char *Resource::getName()
+{
return m_name;
}
+xbt_dict_t Resource::getProperties()
+{
+ return m_properties;
+}
+
+e_surf_resource_state_t Resource::getState()
+{
+ return p_stateCurrent;
+}
+
+void Resource::setState(e_surf_resource_state_t state)
+{
+ p_stateCurrent = state;
+}
+
bool Resource::isOn()
{
return m_running;
}
}
+ResourceLmm::ResourceLmm(surf_model_t model, const char *name, xbt_dict_t props,
+ lmm_system_t system,
+ double constraint_value,
+ tmgr_history_t history,
+ e_surf_resource_state_t state_init,
+ tmgr_trace_t state_trace,
+ double metric_peak,
+ tmgr_trace_t metric_trace)
+ : Resource(model, name, props)
+{
+ p_constraint = lmm_constraint_new(system, this, constraint_value);
+ p_stateCurrent = state_init;
+ if (state_trace)
+ p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, static_cast<ResourcePtr>(this));
+ p_power.scale = 1.0;
+ p_power.peak = metric_peak;
+ if (metric_trace)
+ p_power.event = tmgr_history_add_trace(history, metric_trace, 0.0, 0, static_cast<ResourcePtr>(this));
+ else
+ p_power.event = NULL;
+}
+
/**********
* Action *
**********/
-void Action::cancel()
+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"
+};
+
+Action::Action(){}
+
+Action::Action(ModelPtr model, double cost, bool failed):
+ m_priority(1.0),
+ m_failed(failed),
+ m_start(surf_get_clock()), m_finish(-1.0),
+ m_remains(cost),
+ m_maxDuration(NO_MAX_DURATION),
+ m_cost(cost),
+ p_model(model),
+ m_refcount(1)
+{
+ #ifdef HAVE_TRACING
+ p_category = NULL;
+ #endif
+ p_stateHookup.prev = 0;
+ p_stateHookup.next = 0;
+ if (failed)
+ p_stateSet = p_model->p_failedActionSet;
+ else
+ p_stateSet = p_model->p_runningActionSet;
+
+ xbt_swag_insert(this, p_stateSet);
+}
+
+Action::~Action() {}
+
+int Action::unref(){
+ DIE_IMPOSSIBLE;
+}
+
+void Action::cancel(){
+ DIE_IMPOSSIBLE;
+}
+
+void Action::recycle(){
+ DIE_IMPOSSIBLE;
+}
+
+e_surf_action_state_t Action::getState()
+{
+ if (p_stateSet == p_model->p_readyActionSet)
+ return SURF_ACTION_READY;
+ if (p_stateSet == p_model->p_runningActionSet)
+ return SURF_ACTION_RUNNING;
+ if (p_stateSet == p_model->p_failedActionSet)
+ return SURF_ACTION_FAILED;
+ if (p_stateSet == p_model->p_doneActionSet)
+ return SURF_ACTION_DONE;
+ return SURF_ACTION_NOT_IN_THE_SYSTEM;
+}
+
+void Action::setState(e_surf_action_state_t state)
+{
+ //surf_action_state_t action_state = &(action->model_type->states);
+ XBT_IN("(%p,%s)", this, surf_action_state_names[state]);
+ xbt_swag_remove(this, p_stateSet);
+
+ if (state == SURF_ACTION_READY)
+ p_stateSet = p_model->p_readyActionSet;
+ else if (state == SURF_ACTION_RUNNING)
+ p_stateSet = p_model->p_runningActionSet;
+ else if (state == SURF_ACTION_FAILED)
+ p_stateSet = p_model->p_failedActionSet;
+ else if (state == SURF_ACTION_DONE)
+ p_stateSet = p_model->p_doneActionSet;
+ else
+ p_stateSet = NULL;
+
+ if (p_stateSet)
+ xbt_swag_insert(this, p_stateSet);
+ XBT_OUT();
+}
+
+double Action::getStartTime()
+{
+ return m_start;
+}
+
+double Action::getFinishTime()
+{
+ /* keep the function behavior, some models (cpu_ti) change the finish time before the action end */
+ return m_remains == 0 ? m_finish : -1;
+}
+
+double Action::getRemains()
+{
+ XBT_IN("(%p)", this);
+ XBT_OUT();
+ return m_remains;
+}
+
+void Action::setData(void* data)
+{
+ p_data = data;
+}
+
+#ifdef HAVE_TRACING
+void Action::setCategory(const char *category)
+{
+ XBT_IN("(%p,%s)", this, category);
+ p_category = xbt_strdup(category);
+ XBT_OUT();
+}
+#endif
+
+void Action::ref(){
+ m_refcount++;
+}
+
+void ActionLmm::setMaxDuration(double duration)
+{
+ XBT_IN("(%p,%g)", this, duration);
+ m_maxDuration = duration;
+ if (p_model->p_updateMechanism == UM_LAZY) // remove action from the heap
+ heapRemove(p_model->p_actionHeap);
+ XBT_OUT();
+}
+
+void ActionLmm::gapRemove() {}
+
+void ActionLmm::setPriority(double priority)
+{
+ XBT_IN("(%p,%g)", this, priority);
+ m_priority = priority;
+ lmm_update_variable_weight(p_model->p_maxminSystem, p_variable, priority);
+
+ if (p_model->p_updateMechanism == UM_LAZY)
+ heapRemove(p_model->p_actionHeap);
+ XBT_OUT();
+}
+
+void ActionLmm::cancel(){
+ setState(SURF_ACTION_FAILED);
+ if (p_model->p_updateMechanism == UM_LAZY) {
+ xbt_swag_remove(this, p_model->p_modifiedSet);
+ heapRemove(p_model->p_actionHeap);
+ }
+}
+
+int ActionLmm::unref(){
+ m_refcount--;
+ if (!m_refcount) {
+ xbt_swag_remove(static_cast<ActionPtr>(this), p_stateSet);
+ if (p_variable)
+ lmm_variable_free(p_model->p_maxminSystem, p_variable);
+ if (p_model->p_updateMechanism == UM_LAZY) {
+ /* remove from heap */
+ heapRemove(p_model->p_actionHeap);
+ xbt_swag_remove(this, p_model->p_modifiedSet);
+ }
+#ifdef HAVE_TRACING
+ xbt_free(p_category);
+#endif
+ delete this;
+ return 1;
+ }
+ return 0;
+}
+
+void ActionLmm::suspend()
+{
+ XBT_IN("(%p)", this);
+ if (m_suspended != 2) {
+ lmm_update_variable_weight(p_model->p_maxminSystem, p_variable, 0.0);
+ m_suspended = 1;
+ if (p_model->p_updateMechanism == UM_LAZY)
+ heapRemove(p_model->p_actionHeap);
+ }
+ XBT_OUT();
+}
+
+void ActionLmm::resume()
+{
+ XBT_IN("(%p)", this);
+ if (m_suspended != 2) {
+ lmm_update_variable_weight(p_model->p_maxminSystem, p_variable, m_priority);
+ m_suspended = 0;
+ if (p_model->p_updateMechanism == UM_LAZY)
+ heapRemove(p_model->p_actionHeap);
+ }
+ XBT_OUT();
+}
+
+bool ActionLmm::isSuspended()
+{
+ return m_suspended == 1;
+}
+/* insert action on heap using a given key and a hat (heap_action_type)
+ * a hat can be of three types for communications:
+ *
+ * NORMAL = this is a normal heap entry stating the date to finish transmitting
+ * LATENCY = this is a heap entry to warn us when the latency is payed
+ * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
+ */
+void ActionLmm::heapInsert(xbt_heap_t heap, double key, enum heap_action_type hat)
+{
+ m_hat = hat;
+ xbt_heap_push(heap, this, key);
+}
+
+void ActionLmm::heapRemove(xbt_heap_t heap)
+{
+ m_hat = NOTSET;
+ if (m_indexHeap >= 0) {
+ xbt_heap_remove(heap, m_indexHeap);
+ }
+}
+
+/* added to manage the communication action's heap */
+void surf_action_lmm_update_index_heap(void *action, int i) {
+ ((ActionLmmPtr)action)->updateIndexHeap(i);
+}
+
+void ActionLmm::updateIndexHeap(int i) {
+ m_indexHeap = i;
+}
+
+double ActionLmm::getRemains()
+{
+ XBT_IN("(%p)", this);
+ /* update remains before return it */
+ if (p_model->p_updateMechanism == UM_LAZY) /* update remains before return it */
+ updateRemainingLazy(surf_get_clock());
+ XBT_OUT();
+ return m_remains;
+}
+
+//FIXME split code in the right places
+void ActionLmm::updateRemainingLazy(double now)
+{
+ double delta = 0.0;
+
+ if(p_model == static_cast<ModelPtr>(surf_network_model))
+ {
+ if (m_suspended != 0)
+ return;
+ }
+ else
+ {
+ xbt_assert(p_stateSet == p_model->p_runningActionSet,
+ "You're updating an action that is not running.");
+
+ /* bogus priority, skip it */
+ xbt_assert(m_priority > 0,
+ "You're updating an action that seems suspended.");
+ }
+
+ delta = now - m_lastUpdate;
+
+ if (m_remains > 0) {
+ XBT_DEBUG("Updating action(%p): remains was %f, last_update was: %f", this, m_remains, m_lastUpdate);
+ double_update(&m_remains, m_lastValue * delta);
+
+#ifdef HAVE_TRACING
+ if (p_model == static_cast<ModelPtr>(surf_cpu_model_pm) && TRACE_is_enabled()) {
+ ResourcePtr cpu = static_cast<ResourcePtr>(lmm_constraint_id(lmm_get_cnst_from_var(p_model->p_maxminSystem, p_variable, 0)));
+ TRACE_surf_host_set_utilization(cpu->m_name, p_category, m_lastValue, m_lastUpdate, now - m_lastUpdate);
+ }
+#endif
+ XBT_DEBUG("Updating action(%p): remains is now %f", this, m_remains);
+ }
+
+ if(p_model == static_cast<ModelPtr>(surf_network_model))
+ {
+ if (m_maxDuration != NO_MAX_DURATION)
+ double_update(&m_maxDuration, delta);
+
+ //FIXME: duplicated code
+ if ((m_remains <= 0) &&
+ (lmm_get_variable_weight(p_variable) > 0)) {
+ m_finish = surf_get_clock();
+ setState(SURF_ACTION_DONE);
+ heapRemove(p_model->p_actionHeap);
+ } else if (((m_maxDuration != NO_MAX_DURATION)
+ && (m_maxDuration <= 0))) {
+ m_finish = surf_get_clock();
+ setState(SURF_ACTION_DONE);
+ heapRemove(p_model->p_actionHeap);
+ }
+ }
+
+ m_lastUpdate = now;
+ m_lastValue = lmm_variable_getvalue(p_variable);
+}
+
+/*void Action::cancel()
{
p_model->notifyActionCancel(this);
}
bool Action::isSuspended()
{
return false;
-}
+}*/
