!\defgroup API_Modularized_Scheduler

\struct _starpu_sched_node
\ingroup API_Modularized_Scheduler
This structure represent a scheduler module.

\var _starpu_sched_node::push_task
	this function push a task in the scheduler module.
\var _starpu_sched_node::pop_task
	this function pop a task from the scheduler module, the task returned by this function is executable by the caller if its a worker
\var _starpu_sched_node::available
	this function notify workers downstairs that a task is waiting for a pop
\var _starpu_sched_node::estimated_load
	this function is an heuristic to compute load of scheduler module
\var _starpu_sched_node::estimated_execute_preds
	this function compute executions prediction for a task
\var _starpu_sched_node::nchilds
	the number of modules downstairs
\var _starpu_sched_node::childs
	modules downstairs
\var _starpu_sched_node::workers
	this member contain the set of underlaying workers
\var _starpu_sched_node::is_homogeneous
	this is set to true iff all underlaying workers are the same
\var _starpu_sched_node::data
	data used by the scheduler module
\var _starpu_sched_node::fathers
	the array of scheduler module above indexed by scheduling context index
\var _starpu_sched_node::init_data
	this function is called after all the scheduler is created and should init data member
\var _starpu_sched_node::deinit_data
	this function is called just before _starpu_sched_node_destroy
\var _starpu_sched_node::obj
	the hwloc object associed to scheduler module

\struct _starpu_task_execute_preds
\ingroup API_Modularized_Scheduler
this structure containt predictions for a task and is filled by _starpu_sched_node::estimated_execute_preds
\var _starpu_task_execute_preds::state
	indicate status of prediction
\var _starpu_task_execute_preds::archtype
\var _starpu_task_execute_preds::impl
	those members are revelant is state is PERF_MODEL or CALIBRATING and is set to best or uncalibrated archtype and implementation, respectively, or suitable values if state is NO_PERF_MODEL
\var _starpu_task_execute_preds::expected_finish_time
	expected finish time of worker without task
\var _starpu_task_execute_preds::expected_length
	expected compute time of task
\var _starpu_task_execute_preds::expected_transfer_length
	expected time for transfering data to worker's memory node
\var _starpu_task_execute_preds::expected_power
	expected power consumption for task

\struct _starpu_sched_tree
\ingroup API_Modularized_Scheduler
\var _starpu_sched_tree::root
	this is the entry module of the scheduler
\var _starpu_sched_tree::workers
	this is the set of workers available in this context, this value is used to mask workers in modules
\var lock
	this lock protect the worker member

\fn struct _starpu_sched_node * _starpu_sched_node_create(void)
    	   this function return an initialised scheduler module with default values
\fn void _starpu_sched_node_destroy(struct _starpu_sched_node * node)
    	 this function free data allocated by _starpu_sched_node_create, but dont call node->deinit_data(node)
\fn void _starpu_sched_node_set_father(struct _starpu_sched_node * node, struct _starpu_sched_node * father_node, unsigned sched_ctx_id)
    	 this function set node->fathers[sched_ctx_id] to father_node
\fn void _starpu_sched_node_add_child(struct _starpu_sched_node* node, struct _starpu_sched_node * child)
    	 this function add child to node->childs and increment nchilds as well
	 and dont modify child->fathers
\fn void _starpu_sched_node_remove_child(struct _starpu_sched_node * node, struct _starpu_sched_node * child)
    	 this function remove child from node->childs and decrement nchilds