dist_merge.h File Reference

#include "yac_mpi_common.h"

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Data Structures
struct	yac_dist_merge_vtable

Functions
void	yac_dist_merge (size_t *count, void **array, size_t element_size, MPI_Comm comm, struct yac_dist_merge_vtable *vtable, size_t **idx_old_to_new)

Function Documentation

yac_dist_merge()

void yac_dist_merge	(	size_t *	count,
		void **	array,
		size_t	element_size,
		MPI_Comm	comm,
		struct yac_dist_merge_vtable *	vtable,
		size_t **	idx_old_to_new )

Distributes and merges an array across all processes in comm. After the call, the array will be the same on all processes.

Parameters

[in,out]	count	number of elements in the array
[in,out]	array	array of elements to by synchronised
[in]	element_size	size of a single element
[in]	comm	communicator
[in]	vtable	virtual method table that is to be used for the synchronisation
[out]	idx_old_to_new	if idx_old_to_new != NULL this routine will allocate an array that has the original size of the input array. After the call the i'th element of the input array will be at position idx_old_to_new[i] in the new array.

Remarks

This routine can be applied recursively: The merge function may itself call yac_dist_merge to synchronise some of the additional information.

Definition at line 64 of file dist_merge.c.

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