xt_xmap_intersection.h File Reference

#include <xt/xt_core.h>

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Classes
struct	Xt_com_pos

Functions
Xt_xmap	xt_xmap_intersection_new (int num_src_intersections, const struct Xt_com_list src_com[num_src_intersections], int num_dst_intersections, const struct Xt_com_list dst_com[num_dst_intersections], Xt_idxlist src_idxlist, Xt_idxlist dst_idxlist, MPI_Comm comm)
Xt_xmap	xt_xmap_intersection_custom_new (int num_src_intersections, const struct Xt_com_list src_com[num_src_intersections], int num_dst_intersections, const struct Xt_com_list dst_com[num_dst_intersections], Xt_idxlist src_idxlist, Xt_idxlist dst_idxlist, MPI_Comm comm, Xt_config config)
Xt_xmap	xt_xmap_intersection_ext_new (int num_src_intersections, const struct Xt_com_list src_com[num_src_intersections], int num_dst_intersections, const struct Xt_com_list dst_com[num_dst_intersections], Xt_idxlist src_idxlist, Xt_idxlist dst_idxlist, MPI_Comm comm)
Xt_xmap	xt_xmap_intersection_ext_custom_new (int num_src_intersections, const struct Xt_com_list src_com[num_src_intersections], int num_dst_intersections, const struct Xt_com_list dst_com[num_dst_intersections], Xt_idxlist src_idxlist, Xt_idxlist dst_idxlist, MPI_Comm comm, Xt_config config)
Xt_xmap	xt_xmap_intersection_pos_new (int num_src_msg, const struct Xt_com_pos src_com[num_src_msg], int num_dst_msg, const struct Xt_com_pos dst_com[num_dst_msg], MPI_Comm comm)

Detailed Description

Copyright

Copyright (C) 2016 Jörg Behrens behre.nosp@m.ns@d.nosp@m.krz.d.nosp@m.e Moritz Hanke hanke.nosp@m.@dkr.nosp@m.z.de Thomas Jahns jahns.nosp@m.@dkr.nosp@m.z.de

Author

Jörg Behrens behre.nosp@m.ns@d.nosp@m.krz.d.nosp@m.e Moritz Hanke hanke.nosp@m.@dkr.nosp@m.z.de Thomas Jahns jahns.nosp@m.@dkr.nosp@m.z.de

Definition in file xt_xmap_intersection.h.

Function Documentation

xt_xmap_intersection_custom_new()

Xt_xmap xt_xmap_intersection_custom_new	(	int	num_src_intersections,
		const struct Xt_com_list	src_com[num_src_intersections],
		int	num_dst_intersections,
		const struct Xt_com_list	dst_com[num_dst_intersections],
		Xt_idxlist	src_idxlist,
		Xt_idxlist	dst_idxlist,
		MPI_Comm	comm,
		Xt_config	config )

constructor for an exchange map
this operation is collective over all processes in comm
it uses the provided intersection information to generate the exchange map

Parameters

[in]	num_src_intersections	number of source intersections
[in]	src_com	array containing the source intersections with the other processes and their rank
[in]	num_dst_intersections	number of destination intersections
[in]	dst_com	array containing the destination intersections with the other processes and their rank
[in]	src_idxlist	source index list
[in]	dst_idxlist	destination index list
[in]	comm	MPI communicator that contains all processes that part in the exchange
[in]	config	custom configuration parameters

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xt_xmap_intersection_ext_custom_new()

Xt_xmap xt_xmap_intersection_ext_custom_new	(	int	num_src_intersections,
		const struct Xt_com_list	src_com[num_src_intersections],
		int	num_dst_intersections,
		const struct Xt_com_list	dst_com[num_dst_intersections],
		Xt_idxlist	src_idxlist,
		Xt_idxlist	dst_idxlist,
		MPI_Comm	comm,
		Xt_config	config )

constructor for an exchange map
This operation is collective over all processes in comm
it uses the provided intersection information to generate the exchange map. Internally this function uses ranges to represent index list positions and is therefore conserving space for somewhat contiguous index lists. Depending on the size and shape of intersections this can impact performance drastically.

Parameters

[in]	num_src_intersections	number of source intersections
[in]	src_com	array containing the source intersections with the other processes and their rank
[in]	num_dst_intersections	number of destination intersections
[in]	dst_com	array containing the destination intersections with the other processes and their rank
[in]	src_idxlist	source index list
[in]	dst_idxlist	destination index list
[in]	comm	MPI communicator that contains all processes that part in the exchange
[in]	config	custom parameter object

Definition at line 354 of file xt_xmap_intersection_ext.c.

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xt_xmap_intersection_ext_new()

Xt_xmap xt_xmap_intersection_ext_new	(	int	num_src_intersections,
		const struct Xt_com_list	src_com[num_src_intersections],
		int	num_dst_intersections,
		const struct Xt_com_list	dst_com[num_dst_intersections],
		Xt_idxlist	src_idxlist,
		Xt_idxlist	dst_idxlist,
		MPI_Comm	comm )

constructor for an exchange map
This operation is collective over all processes in comm
it uses the provided intersection information to generate the exchange map. Internally this function uses ranges to represent index list positions and is therefore conserving space for somewhat contiguous index lists. Depending on the size and shape of intersections this can impact performance drastically.

Parameters

[in]	num_src_intersections	number of source intersections
[in]	src_com	array containing the source intersections with the other processes and their rank
[in]	num_dst_intersections	number of destination intersections
[in]	dst_com	array containing the destination intersections with the other processes and their rank
[in]	src_idxlist	source index list
[in]	dst_idxlist	destination index list
[in]	comm	MPI communicator that contains all processes that part in the exchange

Definition at line 337 of file xt_xmap_intersection_ext.c.

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xt_xmap_intersection_new()

Xt_xmap xt_xmap_intersection_new	(	int	num_src_intersections,
		const struct Xt_com_list	src_com[num_src_intersections],
		int	num_dst_intersections,
		const struct Xt_com_list	dst_com[num_dst_intersections],
		Xt_idxlist	src_idxlist,
		Xt_idxlist	dst_idxlist,
		MPI_Comm	comm )

constructor for an exchange map
this operation is collective over all processes in comm
it uses the provided intersection information to generate the exchange map

Parameters

[in]	num_src_intersections	number of source intersections
[in]	src_com	array containing the source intersections with the other processes and their rank
[in]	num_dst_intersections	number of destination intersections
[in]	dst_com	array containing the destination intersections with the other processes and their rank
[in]	src_idxlist	source index list
[in]	dst_idxlist	destination index list
[in]	comm	MPI communicator that contains all processes that part in the exchange

Definition at line 595 of file xt_xmap_intersection.c.

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xt_xmap_intersection_pos_new()

Xt_xmap xt_xmap_intersection_pos_new	(	int	num_src_msg,
		const struct Xt_com_pos	src_com[num_src_msg],
		int	num_dst_msg,
		const struct Xt_com_pos	dst_com[num_dst_msg],
		MPI_Comm	comm )

constructor for an exchange map
this operation is collective over all processes in comm
it uses the provided intersection information to generate the exchange map

Parameters

[in]	num_src_msg	number of source messages
[in]	src_com	array containing relative positions for all source messages and the destination rank
[in]	num_dst_msg	number of destination messages
[in]	dst_com	array containing relative positions for all destination messages and the source rank
[in]	comm	MPI communicator that contains all processes that part in the exchange

Examples

test_xmap_intersection_parallel.c.

Definition at line 1075 of file xt_xmap_intersection.c.

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