Launch maps

Selecting topology colors to send to tasks. More...

Classes
struct	mapping< P >
	A prepared assignment of colors. More...

Typedefs
using	Claims = std::vector< borrow::Claims >
	Desired underlying colors for each outer color.

Functions
Claims	block (Color u, Color n)
	Assign colors in blocks.
Claims	gather (Color u, Color n)
	Make all colors available on all point tasks.
template<class P >
mapping< P >	make (topology_slot< P > &t)
	Create a mapping for initialization using an MPI task.
template<class P >
mapping< P >	make (topology_slot< P > &t, const Claims &c)
	Create a mapping.
Claims	robin (Color u, Color n)
	Assign colors in a cycle.

Detailed Description

Selecting topology colors to send to tasks.

Warning

Only the Legion backend supports non-trivial mappings that select any color but their own.

Typedef Documentation

Claims

using Claims = std::vector<borrow::Claims>

Desired underlying colors for each outer color.

Elements need not have the same length.

Function Documentation

block()

Claims block	(	Color	u,
		Color	n
	)

Assign colors in blocks.

For example, 5 colors are assigned to 3 tasks as {0,1}, {2,3}, and {4}.

Parameters

u	number of colors
n	number of tasks

robin()

Claims robin	(	Color	u,
		Color	n
	)

Assign colors in a cycle.

For example, 5 colors are assigned to 3 tasks as {0,3}, {1,4}, and {2}.

Parameters

u	number of colors
n	number of tasks

gather()

Claims gather	(	Color	u,
		Color	n
	)

Make all colors available on all point tasks.

Parameters

u	number of colors
n	number of tasks

make() [1/2]

template<class P >

mapping< P > make	(	topology_slot< P > &	t,
		const Claims &	c
	)

Create a mapping.

make() [2/2]

template<class P >

mapping< P > make

(

topology_slot< P > &

t

)

Create a mapping for initialization using an MPI task.

The Claims are constructed using block.