kamping::plugin::GridCommunicator< Comm, DefaultContainerType > Class Template Reference

Plugin adding a two dimensional communication grid to the communicator. More...

#include <alltoall_grid.hpp>

Inheritance diagram for kamping::plugin::GridCommunicator< Comm, DefaultContainerType >:

Collaboration diagram for kamping::plugin::GridCommunicator< Comm, DefaultContainerType >:

Public Member Functions
auto	make_grid_communicator () const
	Returns a kamping::plugin::GridCommunicator.

Detailed Description

template<typename Comm, template< typename... > typename DefaultContainerType>
class kamping::plugin::GridCommunicator< Comm, DefaultContainerType >

Plugin adding a two dimensional communication grid to the communicator.

PEs are row-major and abs(#row - #columns) <= 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

If #PE != #row * #column then the PEs of the last incomplete row are transposed and appended to the first rows and do not form an own row based communicator. 0 1 2 3 16 4 5 6 7 17 8 9 10 11 12 13 14 15 (16 17) This enables personalized alltoall exchanges with a latency in about sqrt(#PE).

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

• include/kamping/plugin/alltoall_grid.hpp