STAPL: stapl::runtime::topology Class Reference

Describes the topology of the processes of a gang. More...

Public Member Functions
	topology (void)
	Creates a new topology when there is only one process.

	topology (gang_description const &desc)
	Creates a new topology based on the gang_description and the current process id. More...

id	get_id (void) const noexcept

id	root_id (void) const noexcept

id	parent_id (void) const noexcept

container_type const &	children (void) const noexcept

auto	children_and_root (void) const noexcept -> decltype(boost::join(m_children, boost::counting_range(m_root,(m_root+1))))

bool	is_root (void) const noexcept

bool	is_leaf (void) const noexcept

Public Types
using	id = process_id

using	size_type = gang_description::size_type

using	container_type = std::vector< id >

Detailed Description

Describes the topology of the processes of a gang.

This class offers a partial view of the topology. Each process knows only the root of the topology, its parent and its children to keep it scalable.

stapl::runtime::topology::topology ( gang_description const & desc )

Creates a new topology based on the gang_description and the current process id.

This function calls gang_description::get_process_id_index() to figure out the index of myid in the set of processes that define the gang.

The documentation for this class was generated from the following file: