Executors

stapl::paragraph_impl::paragraph task execution support. More...

Collaboration diagram for Executors:

Classes
class	stapl::anonymous_executor
	Provides support for getting a p_object on the gang of stapl_main(). More...
class	stapl::executor< TaskGraph >
	Executor for scheduling runnable tasks with specific scheduling information. More...
class	stapl::executor_base
	Executor base class. More...
class	stapl::gang_executor< Scheduler >
	Gang associated executor. More...
class	stapl::runnable_base
	Common base for all entries that can be scheduled and executed, such as tasks and executors. More...
class	stapl::terminator< T, BinaryOperation >
	General termination detection. More...
class	stapl::terminator_base
	Base class for termination detection. More...
struct	stapl::execute_all_t
	Tag type to execute all scheduled entries. More...

Modules
	Scheduling information
	Scheduling information support.
	Work Stealing
	Work stealing support.

Functions
anonymous_executor &	stapl::get_anonymous_executor (void)
	Returns the instance of the anonymous_executor.
template<typename Scheduler >
void	stapl::set_executor_scheduler (Scheduler &&scheduler)
	Sets the scheduler of the gang_executor of the current execution context. More...
executor_base &	stapl::get_executor (void)
	Returns the gang_executor of the current execution context.
std::size_t	stapl::get_default_executor_window_size (void) noexcept
	Returns the default sliding window size for executors.
std::size_t	stapl::get_default_executor_retire_chunk (void) noexcept
	Returns the default retire chunk size for executors.

Variables
constexpr execute_all_t	stapl::execute_all = { }
	Tag to execute all scheduled entries.

Detailed Description

stapl::paragraph_impl::paragraph task execution support.

The executor is the component that allows the PARAGRAPH to schedule runnable tasks. Each paragraph is associated with one stapl::executor. Once all the dependencies of a task have been satisfied, it is added to the executor, along with any required scheduling information. Each stapl::executor is added to the gang's stapl::gang_executor.

The RTS is going through each stapl::executor in the stapl::gang_executor executing its tasks according to the scheduling information.

Function Documentation

set_executor_scheduler()

template<typename Scheduler >

void stapl::set_executor_scheduler

(

Scheduler &&

scheduler

)

Sets the scheduler of the gang_executor of the current execution context.

Warning

If the executor has entries or is bound to a parent executor, then replacing the scheduler will result in an error.