Bucket

Functions
void	map_idxlist_to_RD_decomp (t_bucket *bucket, t_idxlist *idxlist, int *idxlist_local, int nbuckets, MPI_Comm comm)
	Map a provided index list into a RD decomposition. More...
void	map_RD_decomp_to_idxlist (t_bucket *src_bucket, t_bucket *dst_bucket, int *idxlist_local, int idxlist_size, int nbuckets, MPI_Comm comm)
	Map source and destination information in the RD decomposition to the original decompositions. More...

Detailed Description

Functions to map to and from RD decomposition which generate a t_bucket object

Function Documentation

map_idxlist_to_RD_decomp()

void map_idxlist_to_RD_decomp	(	t_bucket *	bucket,
		t_idxlist *	idxlist,
		int *	idxlist_local,
		int	nbuckets,
		MPI_Comm	comm
	)

Map a provided index list into a RD decomposition.

Each rank in the MPI communicator is part of the RD decomposition and receive information about the ranks owning the indices its bucket (subdomain of the RD decomposition).

Parameters

[in]	bucket	t_bucket object containing information about the RD decomposition
[in]	idxlist	t_idxlist object containing the MPI rank index list which needs to be mapped to the RD decomposition
[in]	idxlist_local	array containing the local indices of the index list
[in]	nbuckets	number of buckets
[in]	comm	MPI communicator containing all the MPI procs involved in the RD decomposition

map_RD_decomp_to_idxlist()

void map_RD_decomp_to_idxlist	(	t_bucket *	src_bucket,
		t_bucket *	dst_bucket,
		int *	idxlist_local,
		int	idxlist_size,
		int	nbuckets,
		MPI_Comm	comm
	)

Map source and destination information in the RD decomposition to the original decompositions.

Each rank owns information about source and destination in the original decompositions of its own indices. With that information, it can provide information to the original decompositions about the exchange.

Parameters

[in]	src_bucket	t_bucket object containing information about the RD decomposition for the source idxlist
[in]	dst_bucket	t_bucket object containing information about the RD decomposition for the destination idxlist
[in]	idxlist_local	array containing the local indices of the index list in the original decomposition
[in]	idxlist_size	size of the idxlist owned by the MPI rank in the original decomposition
[in]	nbuckets	number of buckets
[in]	comm	MPI communicator containing all the MPI procs involved in the RD decomposition