Function find_all

Function find_all_localities

hpx::find_all_localities — Return the list of global ids representing all localities available to this application which support the given component type.

Synopsis

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


std::vector< naming::id_type > 
find_all_localities(components::component_type type, error_code & ec = throws);

Description

The function find_all_localities() can be used to retrieve the global ids of all localities currently available to this application which support the creation of instances of the given component type.

	Note
	Generally, the id of a locality can be used for instance to create new instances of components and to invoke plain actions (global functions).

Note

As long as ec is not pre-initialized to hpx::throws this function doesn't throw but returns the result code using the parameter ec. Otherwise it throws an instance of hpx::exception.

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

See Also:

hpx::find_here(), hpx::find_locality()

Parameters:

`ec`	[in,out] this represents the error status on exit, if this is pre-initialized to hpx::throws the function will throw on error instead.
`type`	[in] The type of the components for which the function should return the available localities.

Returns:

The global ids representing the localities currently available to this application which support the creation of instances of the given component type. If no localities supporting the given component type are currently available, this function will return an empty vector.