Function get_num_localities

hpx::get_num_localities — Asynchronously return the number of localities which are currently registered for the running application.

Synopsis

// In header: <hpx/hpx_fwd.hpp>


lcos::future< boost::uint32_t > 
get_num_localities(components::component_type t);

Description

The function get_num_localities asynchronously returns the number of localities currently connected to the console which support the creation of the given component type. The returned future represents the actual result.

	Note
	This function will return meaningful results only if called from an HPX-thread. It will return 0 otherwise.

See Also:

hpx::find_all_localities, hpx::get_num_localities

Parameters:

`t`	The component type for which the number of connected localities should be retrieved.