xt_mpi_internal.h File Reference

#include <stdbool.h>
#include <mpi.h>

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Enumerations
enum	xt_mpi_tags {   xt_mpi_tag_exchange_msg, xt_mpi_tag_xmap_dist_dir_src_send, xt_mpi_tag_xmap_dist_dir_dst_send, xt_mpi_tag_xmap_intersection_header_exchange,   xt_mpi_tag_xmap_intersection_data_exchange, xt_mpi_num_tags }

Functions
void	xt_mpi_init (void)
void	xt_mpi_finalize (void)
MPI_Comm	xt_mpi_comm_smart_dup (MPI_Comm comm, int *tag_offset)
void	xt_mpi_comm_smart_dedup (MPI_Comm *comm, int tag_offset)
bool	xt_mpi_test_some (int *restrict num_req, MPI_Request req[], int ops_completed[], MPI_Comm comm)

Variables
int	xt_mpi_comm_internal_keyval

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_mpi_internal.h.

Enumeration Type Documentation

xt_mpi_tags

enum xt_mpi_tags

Enumerator
xt_mpi_tag_exchange_msg
xt_mpi_tag_xmap_dist_dir_src_send
xt_mpi_tag_xmap_dist_dir_dst_send
xt_mpi_tag_xmap_intersection_header_exchange
xt_mpi_tag_xmap_intersection_data_exchange
xt_mpi_num_tags

Definition at line 59 of file xt_mpi_internal.h.

Function Documentation

xt_mpi_comm_smart_dedup()

void xt_mpi_comm_smart_dedup	(	MPI_Comm *	comm,
		int	tag_offset
	)

Definition at line 901 of file xt_mpi.c.

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xt_mpi_comm_smart_dup()

MPI_Comm xt_mpi_comm_smart_dup	(	MPI_Comm	comm,
		int *	tag_offset
	)

Definition at line 850 of file xt_mpi.c.

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xt_mpi_finalize()

void xt_mpi_finalize

(

void

)

Definition at line 790 of file xt_mpi.c.

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xt_mpi_init()

void xt_mpi_init

(

void

)

Definition at line 776 of file xt_mpi.c.

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xt_mpi_test_some()

bool xt_mpi_test_some	(	int *restrict	num_req,
		MPI_Request	req[],
		int	ops_completed[],
		MPI_Comm	comm
	)

Given an array of MPI requests, call MPI_Test_some and

1. return if no requests are left unfinished
2. sort non-finished requests into remaining leading part of array
3. update count of remaining requests

Parameters

[in,out]	num_req	pointer to count of requests
[in,out]	req	array of requests to test (size *num_req)
[out]	ops_completed	array of size at least matching req, this is used as temporary scratch space and overwritten
[in]	comm	communicator to use for failure notifications

Variable Documentation

xt_mpi_comm_internal_keyval

int xt_mpi_comm_internal_keyval

Definition at line 725 of file xt_mpi.c.