xbt_assert(sd_global == nullptr, "SD_init() already called");
sd_global = xbt_new(s_SD_global_t, 1);
- sd_global->watch_point_reached = 0;
+ sd_global->watch_point_reached = false;
sd_global->task_mallocator=xbt_mallocator_new(65536, SD_task_new_f, SD_task_free_f, SD_task_recycle_f);
*/
xbt_dynar_t SD_simulate(double how_long) {
- /* we stop the simulation when total_time >= how_long */
- SD_task_t task;
- SD_task_t dst;
- surf_action_t action;
- unsigned int iter;
-
XBT_VERB("Run simulation for %f seconds", how_long);
- sd_global->watch_point_reached = false;
+ sd_global->watch_point_reached = false;
xbt_dynar_reset(sd_global->return_set);
/* explore the runnable tasks */
- while(!sd_global->runnable_tasks->empty()){
- task = *(sd_global->runnable_tasks->begin());
- XBT_VERB("Executing task '%s'", SD_task_get_name(task));
- SD_task_run(task);
- }
+ while(!sd_global->runnable_tasks->empty())
+ SD_task_run(*(sd_global->runnable_tasks->begin()));
- /* main loop */
double elapsed_time = 0.0;
double total_time = 0.0;
- while (elapsed_time >= 0.0 && (how_long < 0.0 || 0.00001 < (how_long -total_time)) &&
- !sd_global->watch_point_reached) {
+ /* main loop */
+ while (elapsed_time >= 0 && (how_long < 0 || 0.00001 < (how_long -total_time)) && !sd_global->watch_point_reached) {
surf_model_t model = nullptr;
XBT_DEBUG("Total time: %f", total_time);
total_time += elapsed_time;
/* let's see which tasks are done */
+ unsigned int iter;
xbt_dynar_foreach(all_existing_models, iter, model) {
+ surf_action_t action;
while ((action = surf_model_extract_done_action_set(model))) {
- task = static_cast<SD_task_t>(action->getData());
+ SD_task_t task = static_cast<SD_task_t>(action->getData());
XBT_VERB("Task '%s' done", SD_task_get_name(task));
SD_task_set_state(task, SD_DONE);
/* the state has changed. Add it only if it's the first change */
- if (xbt_dynar_member(sd_global->return_set, &task) == 0) {
+ if (xbt_dynar_member(sd_global->return_set, &task) == 0)
xbt_dynar_push(sd_global->return_set, &task);
- }
/* remove the dependencies after this task */
for (std::set<SD_task_t>::iterator succ = task->successors->begin(); succ != task->successors->end(); ++succ){
if (SD_task_get_state((*succ)) == SD_SCHEDULED && (*succ)->predecessors->empty() && (*succ)->inputs->empty())
SD_task_set_state((*succ), SD_RUNNABLE);
- if (SD_task_get_state((*succ)) == SD_RUNNABLE && !sd_global->watch_point_reached) {
- XBT_VERB("Executing task '%s'", SD_task_get_name((*succ)));
+ if (SD_task_get_state((*succ)) == SD_RUNNABLE && !sd_global->watch_point_reached)
SD_task_run((*succ));
- }
}
task->successors->clear();
- for (std::set<SD_task_t>::iterator it=task->outputs->begin(); it!=task->outputs->end(); ++it){
- dst=*it;
- dst->start_time = task->finish_time;
- dst->predecessors->erase(task);
- if (SD_task_get_state(dst) == SD_SCHEDULED)
- SD_task_set_state(dst, SD_RUNNABLE);
+ for (std::set<SD_task_t>::iterator output=task->outputs->begin(); output!=task->outputs->end(); ++output){
+ (*output)->start_time = task->finish_time;
+ (*output)->predecessors->erase(task);
+ if (SD_task_get_state(*output) == SD_SCHEDULED)
+ SD_task_set_state(*output, SD_RUNNABLE);
else
- SD_task_set_state(dst, SD_SCHEDULABLE);
+ SD_task_set_state(*output, SD_SCHEDULABLE);
- SD_task_t comm_dst = *(dst->successors->begin());
+ SD_task_t comm_dst = *((*output)->successors->begin());
if (SD_task_get_state(comm_dst) == SD_NOT_SCHEDULED && comm_dst->predecessors->empty()){
XBT_DEBUG("%s is a transfer, %s may be ready now if %zu=0",
- SD_task_get_name(dst), SD_task_get_name(comm_dst), comm_dst->predecessors->size());
+ SD_task_get_name(*output), SD_task_get_name(comm_dst), comm_dst->predecessors->size());
SD_task_set_state(comm_dst, SD_SCHEDULABLE);
}
- if (SD_task_get_state(dst) == SD_RUNNABLE && !sd_global->watch_point_reached) {
- XBT_VERB("Executing task '%s'", SD_task_get_name(dst));
- SD_task_run(dst);
- }
+ if (SD_task_get_state(*output) == SD_RUNNABLE && !sd_global->watch_point_reached)
+ SD_task_run(*output);
}
task->outputs->clear();
}
/* let's see which tasks have just failed */
while ((action = surf_model_extract_failed_action_set(model))) {
- task = static_cast<SD_task_t>(action->getData());
+ SD_task_t task = static_cast<SD_task_t>(action->getData());
XBT_VERB("Task '%s' failed", SD_task_get_name(task));
SD_task_set_state(task, SD_FAILED);
xbt_dynar_push(sd_global->return_set, &task);
XBT_WARN("Simulation is finished but %zu tasks are still not done", sd_global->initial_tasks->size());
static const char* state_names[] =
{ "SD_NOT_SCHEDULED", "SD_SCHEDULABLE", "SD_SCHEDULED", "SD_RUNNABLE", "SD_RUNNING", "SD_DONE","SD_FAILED" };
- for (std::set<SD_task_t>::iterator t = sd_global->initial_tasks->begin(); t != sd_global->initial_tasks->end();
- ++t){
+ for (std::set<SD_task_t>::iterator t = sd_global->initial_tasks->begin(); t != sd_global->initial_tasks->end(); ++t)
XBT_WARN("%s is in %s state", SD_task_get_name(*t), state_names[SD_task_get_state(*t)]);
- }
}
XBT_DEBUG("elapsed_time = %f, total_time = %f, watch_point_reached = %d",
- elapsed_time, total_time, sd_global->watch_point_reached);
+ elapsed_time, total_time, sd_global->watch_point_reached);
XBT_DEBUG("current time = %f", surf_get_clock());
return sd_global->return_set;
/**
* \brief Destroys all SD internal data
- *
* This function should be called when the simulation is over. Don't forget to destroy too.
- *
* \see SD_init(), SD_task_destroy()
*/
void SD_exit()
{
SD_task_t task = static_cast<SD_task_t>(xbt_mallocator_get(sd_global->task_mallocator));
- /* general information */
- task->data = data; /* user data */
+ task->data = data;
task->name = xbt_strdup(name);
task->amount = amount;
task->remains = amount;
*/
void SD_task_dependency_add(const char *name, void *data, SD_task_t src, SD_task_t dst)
{
-
if (src == dst)
THROWF(arg_error, 0, "Cannot add a dependency between task '%s' and itself", SD_task_get_name(src));
- e_SD_task_state_t state = SD_task_get_state(src);
- if (state == SD_DONE || state == SD_FAILED)
+ if (src->state == SD_DONE || src->state == SD_FAILED)
THROWF(arg_error, 0, "Task '%s' must be SD_NOT_SCHEDULED, SD_SCHEDULABLE, SD_SCHEDULED, SD_RUNNABLE, or SD_RUNNING",
- SD_task_get_name(src));
+ src->name);
- state = SD_task_get_state(dst);
- if (state == SD_DONE || state == SD_FAILED || state == SD_RUNNING)
+ if (dst->state == SD_DONE || dst->state == SD_FAILED || dst->state == SD_RUNNING)
THROWF(arg_error, 0, "Task '%s' must be SD_NOT_SCHEDULED, SD_SCHEDULABLE, SD_SCHEDULED, or SD_RUNNABLE",
- SD_task_get_name(dst));
-
- if (src->successors->find(dst) != src->successors->end() ||
- dst->predecessors->find(src) != dst->predecessors->end() ||
- dst->inputs->find(src) != dst->inputs->end() ||
- src->outputs->find(dst) != src->outputs->end())
- THROWF(arg_error, 0, "A dependency already exists between task '%s' and task '%s'",
- SD_task_get_name(src), SD_task_get_name(dst));
+ dst->name);
- XBT_DEBUG("SD_task_dependency_add: src = %s, dst = %s", SD_task_get_name(src), SD_task_get_name(dst));
+ if (dst->inputs->find(src) != dst->inputs->end() || src->outputs->find(dst) != src->outputs->end() ||
+ src->successors->find(dst) != src->successors->end() || dst->predecessors->find(src) != dst->predecessors->end())
+ THROWF(arg_error, 0, "A dependency already exists between task '%s' and task '%s'", src->name, dst->name);
- e_SD_task_kind_t src_kind = SD_task_get_kind(src);
- e_SD_task_kind_t dst_kind = SD_task_get_kind(dst);
+ XBT_DEBUG("SD_task_dependency_add: src = %s, dst = %s", src->name, dst->name);
- if (src_kind == SD_TASK_COMM_E2E || src_kind == SD_TASK_COMM_PAR_MXN_1D_BLOCK){
- if (dst_kind == SD_TASK_COMP_SEQ || dst_kind == SD_TASK_COMP_PAR_AMDAHL){
+ if (src->kind == SD_TASK_COMM_E2E || src->kind == SD_TASK_COMM_PAR_MXN_1D_BLOCK){
+ if (dst->kind == SD_TASK_COMP_SEQ || dst->kind == SD_TASK_COMP_PAR_AMDAHL)
dst->inputs->insert(src);
- } else {
+ else
dst->predecessors->insert(src);
- }
src->successors->insert(dst);
} else {
- if (dst_kind == SD_TASK_COMM_E2E|| dst_kind == SD_TASK_COMM_PAR_MXN_1D_BLOCK){
+ if (dst->kind == SD_TASK_COMM_E2E|| dst->kind == SD_TASK_COMM_PAR_MXN_1D_BLOCK)
src->outputs->insert(dst);
- } else {
+ else
src->successors->insert(dst);
- }
dst->predecessors->insert(src);
}
/* if the task was runnable, the task goes back to SD_SCHEDULED because of the new dependency*/
- if (SD_task_get_state(dst) == SD_RUNNABLE) {
- XBT_DEBUG("SD_task_dependency_add: %s was runnable and becomes scheduled!", SD_task_get_name(dst));
+ if (dst->state == SD_RUNNABLE) {
+ XBT_DEBUG("SD_task_dependency_add: %s was runnable and becomes scheduled!", dst->name);
SD_task_set_state(dst, SD_SCHEDULED);
}
}
{
XBT_DEBUG("SD_task_dependency_remove: src = %s, dst = %s", SD_task_get_name(src), SD_task_get_name(dst));
- if (src->successors->find(dst) == src->successors->end() &&
- src->outputs->find(dst) == src->outputs->end())
+ if (src->successors->find(dst) == src->successors->end() && src->outputs->find(dst) == src->outputs->end())
THROWF(arg_error, 0, "No dependency found between task '%s' and '%s': task '%s' is not a successor of task '%s'",
- SD_task_get_name(src), SD_task_get_name(dst), SD_task_get_name(dst), SD_task_get_name(src));
+ src->name, dst->name, dst->name, src->name);
- e_SD_task_kind_t src_kind = SD_task_get_kind(src);
- e_SD_task_kind_t dst_kind = SD_task_get_kind(dst);
- if (src_kind == SD_TASK_COMM_E2E || src_kind == SD_TASK_COMM_PAR_MXN_1D_BLOCK){
- if (dst_kind == SD_TASK_COMP_SEQ || dst_kind == SD_TASK_COMP_PAR_AMDAHL){
+ if (src->kind == SD_TASK_COMM_E2E || src->kind == SD_TASK_COMM_PAR_MXN_1D_BLOCK){
+ if (dst->kind == SD_TASK_COMP_SEQ || dst->kind == SD_TASK_COMP_PAR_AMDAHL)
dst->inputs->erase(src);
- } else {
+ else
dst->predecessors->erase(src);
- }
src->successors->erase(dst);
} else {
- if (dst_kind == SD_TASK_COMM_E2E|| dst_kind == SD_TASK_COMM_PAR_MXN_1D_BLOCK){
+ if (dst->kind == SD_TASK_COMM_E2E|| dst->kind == SD_TASK_COMM_PAR_MXN_1D_BLOCK)
src->outputs->erase(dst);
- } else {
+ else
src->successors->erase(dst);
- }
dst->predecessors->erase(src);
}
/* if the task was scheduled and dependencies are satisfied, we can make it runnable */
- if (dst->predecessors->empty() && dst->inputs->empty() && SD_task_get_state(dst) == SD_SCHEDULED)
+ if (dst->predecessors->empty() && dst->inputs->empty() && dst->state == SD_SCHEDULED)
SD_task_set_state(dst, SD_RUNNABLE);
}
*/
void SD_task_unschedule(SD_task_t task)
{
- if (task->state != SD_SCHEDULED && task->state != SD_RUNNABLE && task->state != SD_RUNNING &&
- task->state != SD_FAILED)
- THROWF(arg_error, 0, "Task %s: the state must be SD_SCHEDULED, SD_RUNNABLE, SD_RUNNING or SD_FAILED",
- SD_task_get_name(task));
+ if (task->state == SD_NOT_SCHEDULED || task->state == SD_SCHEDULABLE)
+ THROWF(arg_error, 0, "Task %s: the state must be SD_SCHEDULED, SD_RUNNABLE, SD_RUNNING or SD_FAILED", task->name);
- if ((task->state == SD_SCHEDULED || task->state == SD_RUNNABLE)
- /* if the task is scheduled or runnable */
+ if ((task->state == SD_SCHEDULED || task->state == SD_RUNNABLE) /* if the task is scheduled or runnable */
&& ((task->kind == SD_TASK_COMP_PAR_AMDAHL) || (task->kind == SD_TASK_COMM_PAR_MXN_1D_BLOCK))) {
/* Don't free scheduling data for typed tasks */
__SD_task_destroy_scheduling_data(task);
/* Runs a task. */
void SD_task_run(SD_task_t task)
{
- xbt_assert(SD_task_get_state(task) == SD_RUNNABLE, "Task '%s' is not runnable! Task state: %d",
- SD_task_get_name(task), (int)SD_task_get_state(task));
- xbt_assert(task->host_list != nullptr, "Task '%s': workstation_list is nullptr!", SD_task_get_name(task));
+ xbt_assert(task->state == SD_RUNNABLE, "Task '%s' is not runnable! Task state: %d", task->name, (int) task->state);
+ xbt_assert(task->host_list != nullptr, "Task '%s': workstation_list is nullptr!", task->name);
- XBT_DEBUG("Running task '%s'", SD_task_get_name(task));
+ XBT_VERB("Executing task '%s'", task->name);
/* Copy the elements of the task into the action */
int host_nb = task->host_count;
void SD_task_distribute_comp_amdahl(SD_task_t task, int ws_count)
{
xbt_assert(task->kind == SD_TASK_COMP_PAR_AMDAHL, "Task %s is not a SD_TASK_COMP_PAR_AMDAHL typed task."
- "Cannot use this function.", SD_task_get_name(task));
+ "Cannot use this function.", task->name);
task->flops_amount = xbt_new0(double, ws_count);
task->bytes_amount = xbt_new0(double, ws_count * ws_count);
xbt_free(task->host_list);
task->host_count = ws_count;
task->host_list = xbt_new0(sg_host_t, ws_count);
-
+
for(int i=0;i<ws_count;i++){
task->flops_amount[i] = (task->alpha + (1 - task->alpha)/ws_count) * task->amount;
}
-}
-
+}
/** @brief Auto-schedules a task.
*
* - Point to point communication (done)
* - Sequential computation (done)
* - group communication (redistribution, several kinds)
- * - parallel tasks with no internal communication (one kind per speedup model such as Amdahl)
+ * - parallel tasks with no internal communication (one kind per speedup model such as Amdahl)
* - idem+ internal communication. Task type not enough since we cannot store comm cost alongside to comp one)
*/
void SD_task_schedulev(SD_task_t task, int count, const sg_host_t * list)
if (SD_task_get_state(output)< SD_SCHEDULED) {
SD_task_do_schedule(output);
XBT_VERB ("Auto-Schedule redistribution task %s. Send %.f bytes from %d hosts to %d hosts.",
- SD_task_get_name(output),output->amount, src_nb, dst_nb);
+ output->name, output->amount, src_nb, dst_nb);
}
}
}
