mpi_permutation.h File Reference

#include <map>
#include <thrust/host_vector.h>
#include "index.h"
#include "mpi_datatype.h"
#include "tensor_traits.h"
#include "tensor_traits_scalar.h"
#include "tensor_traits_thrust.h"
#include "tensor_traits_std.h"

Go to the source code of this file.

Namespaces
namespace	dg
	This is the namespace for all functions and classes defined and used by the discontinuous Galerkin library.

Functions
template<class MessageType >
std::map< int, MessageType >	dg::mpi_permute (const std::map< int, MessageType > &messages, MPI_Comm comm)
	Exchange messages between processes in a communicator.
template<class ContainerType >
void	dg::mpi_gather (const thrust::host_vector< std::array< int, 2 > > &gather_map, const ContainerType &gatherFrom, ContainerType &result, MPI_Comm comm)
	Un-optimized distributed gather operation.
template<class ContainerType >
void	dg::mpi_scatter (const thrust::host_vector< std::array< int, 2 > > &scatter_map, const ContainerType &toScatter, ContainerType &result, MPI_Comm comm, bool resize_result=false)
	Un-optimized distributed scatter operation.
template<class Integer >
thrust::host_vector< std::array< Integer, 2 > >	dg::mpi_invert_permutation (const thrust::host_vector< std::array< Integer, 2 > > &p, MPI_Comm comm)
	Invert a globally bijective index map.