chunk.hpp

#include "./communicator.hpp"
#include "./macros.hpp"
#include <itertools/itertools.hpp>
#include <iterator>
#include <utility>

Detailed Description

Provides utilities to distribute a range across MPI processes.

Definition in file chunk.hpp.

Go to the source code of this file.

Functions
template<typename R>
auto	mpi::chunk (R &&rg, communicator c={})
	Divide a given range as evenly as possible across the MPI processes in a communicator and get the subrange assigned to the calling process.
long	mpi::chunk_length (long end, int nranges, int i, long min_size=1)
	Get the length of the ith subrange after splitting the integer range [0, end) as evenly as possible across n subranges.