MpiOperations.hh File Reference

MPI parallel functionality. More...

#include <algorithm>
#include <type_traits>
#include "corecel/Config.hh"
#include "corecel/Assert.hh"
#include "corecel/Macros.hh"
#include "corecel/cont/Span.hh"
#include "MpiCommunicator.hh"
#include "detail/MpiType.hh"

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Enumerations
enum class	celeritas::Operation {   min , max , sum , prod ,   size_ }
	MPI reduction operation to perform on the data.

Functions
void	celeritas::barrier (MpiCommunicator const &comm)
	Wait for all processes in this communicator to reach the barrier.
template<class T , std::size_t N>
void	celeritas::allreduce (MpiCommunicator const &comm, Operation op, Span< T const, N > src, Span< T, N > dst)
	All-to-all reduction on the data from src to dst.
template<class T , std::size_t N>
void	celeritas::allreduce (MpiCommunicator const &comm, Operation op, Span< T, N > data)
	All-to-all reduction on the data, in place.
template<class T , std::enable_if_t< std::is_fundamental< T >::value, bool > = true>
T	celeritas::allreduce (MpiCommunicator const &comm, Operation op, T const src)
	Perform reduction on a fundamental scalar and return the result.

Detailed Description

MPI parallel functionality.