mpi_utils Directory Reference

Files
file	allreduce_debugcheck.cc [code]
	some routines for cross-checking the use of collective MPI routines
file	allreduce_sparse_double_sum.cc [code]
	implementation of a reduction operation for sparsely populated data
file	generic_comm.h [code]
	defines a class with a generic communication pattern for parallel tree walks
file	healthtest.cc [code]
	routines for testing whether all compute nodes yield the full CPU and communication performance
file	hypercube_allgatherv.cc [code]
	a simple version of an Allgatherv implemented with a hypercube communication model
file	mpi_types.cc [code]
	implements some user defined MPI types for collectives
file	mpi_utils.h [code]
	declares some numerical values for MPI tags and function prototypes for MPI helper functions
file	mpi_vars.cc [code]
	contains the global variables defined in the MPI helper functions
file	myalltoall.cc [code]
	a simple wrapper around MPI_Alltoallv that can deal with data in individual sends that are very big
file	setcomm.h [code]
	implements a class providing basic information about the local MPI communicator
file	shared_mem_handler.cc [code]
	implements code for the shared-memory fetching of remote date through designated MPI handler ranks
file	shared_mem_handler.h [code]
	provides a class for accessing data of other MPI ranks via shared memory and designated MPI handler ranks
file	sizelimited_sendrecv.cc [code]
	implements a wrapper around MPI_Sendrecv that if needed transmits the data in smaller pieces than a prescribed maximum size
file	sums_and_minmax.cc [code]
	some simple extensions of MPI-collectives