xt_mpi.c File Reference

#include <assert.h>
#include <inttypes.h>
#include <limits.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <mpi.h>
#include "core/core.h"
#include "core/ppm_xfuncs.h"
#include "xt/xt_core.h"
#include "xt/xt_mpi.h"
#include "xt_mpi_internal.h"

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Classes
struct	xt_mpi_comm_internal_attr

Typedefs
typedef unsigned long	used_map_elem

Enumerations
enum	{ used_map_elem_bits = sizeof (used_map_elem) * CHAR_BIT }

Functions
void	xt_mpi_error (int error_code, MPI_Comm comm)
size_t	xt_disp2ext_count (size_t disp_len, const int *disp)
size_t	xt_disp2ext (size_t disp_len, const int *disp, struct Xt_offset_ext *restrict v)
static int	xt_mpi_comm_internal_keyval_copy (MPI_Comm XT_UNUSED(oldcomm), int XT_UNUSED(keyval), void *XT_UNUSED(extra_state), void *XT_UNUSED(attribute_val_in), void *attribute_val_out, int *flag)
static int	xt_mpi_comm_internal_keyval_delete (MPI_Comm XT_UNUSED(comm), int XT_UNUSED(comm_keyval), void *attribute_val, void *XT_UNUSED(extra_state))
void	xt_mpi_init (void)
void	xt_mpi_finalize (void)
static struct xt_mpi_comm_internal_attr *	xt_mpi_comm_get_internal_attr (MPI_Comm comm)
static int	ctzl (unsigned long v)
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)
void	xt_mpi_comm_mark_exclusive (MPI_Comm comm)
bool	xt_mpi_test_some (int *restrict num_req, MPI_Request *restrict req, int *restrict ops_completed, MPI_Comm comm)

Variables
static int	xt_mpi_comm_internal_keyval = MPI_KEYVAL_INVALID
static int	xt_mpi_tag_ub_val

Detailed Description

Copyright

Copyright (C) 2013 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.c.

Typedef Documentation

used_map_elem

typedef unsigned long used_map_elem

Definition at line 197 of file xt_mpi.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
used_map_elem_bits

Definition at line 199 of file xt_mpi.c.

Function Documentation

ctzl()

static int ctzl ( unsigned long v )

inlinestatic

Definition at line 304 of file xt_mpi.c.

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xt_disp2ext()

size_t xt_disp2ext	(	size_t	disp_len,
		const int *	disp,
		struct Xt_offset_ext *restrict	v )

Definition at line 133 of file xt_mpi.c.

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xt_disp2ext_count()

size_t xt_disp2ext_count	(	size_t	disp_len,
		const int *	disp )

Definition at line 92 of file xt_mpi.c.

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xt_mpi_comm_get_internal_attr()

static struct xt_mpi_comm_internal_attr * xt_mpi_comm_get_internal_attr ( MPI_Comm comm )

static

Definition at line 268 of file xt_mpi.c.

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xt_mpi_comm_internal_keyval_copy()

static int xt_mpi_comm_internal_keyval_copy ( MPI_Comm XT_UNUSEDoldcomm, int XT_UNUSEDkeyval, void * XT_UNUSEDextra_state, void * XT_UNUSEDattribute_val_in, void * attribute_val_out, int * flag )

static

Definition at line 210 of file xt_mpi.c.

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xt_mpi_comm_internal_keyval_delete()

static int xt_mpi_comm_internal_keyval_delete ( MPI_Comm XT_UNUSEDcomm, int XT_UNUSEDcomm_keyval, void * attribute_val, void * XT_UNUSEDextra_state )

static

Definition at line 235 of file xt_mpi.c.

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xt_mpi_comm_mark_exclusive()

void xt_mpi_comm_mark_exclusive

(

MPI_Comm

comm

)

Annotate communicator that is for exclusive use by YAXT.

YAXT will trust communicators marked this way to not have active communications other than those initiated by YAXT functions. This is useful to prevent unnecessary MPI_Comm_dup() calls.

Parameters

[in,out]

comm

communicator that will not be used by application code

Definition at line 403 of file xt_mpi.c.

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xt_mpi_comm_smart_dedup()

void xt_mpi_comm_smart_dedup	(	MPI_Comm *	comm,
		int	tag_offset )

Examples

test_mpi_smartdedup.c.

Definition at line 386 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 )

Examples

test_mpi_smartdedup.c.

Definition at line 333 of file xt_mpi.c.

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xt_mpi_error()

void xt_mpi_error	(	int	error_code,
		MPI_Comm	comm )

report error return of MPI call

Parameters

[in]	error_code	return code of an MPI call
[in]	comm	communicator which was used for the respective MPI call

Definition at line 75 of file xt_mpi.c.

xt_mpi_finalize()

void xt_mpi_finalize

(

void

)

Examples

test_exchanger_parallel.c, and test_mpi_smartdedup.c.

Definition at line 261 of file xt_mpi.c.

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xt_mpi_init()

void xt_mpi_init

(

void

)

Examples

test_exchanger_parallel.c, and test_mpi_smartdedup.c.

Definition at line 246 of file xt_mpi.c.

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xt_mpi_test_some()

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

Definition at line 415 of file xt_mpi.c.

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Variable Documentation

xt_mpi_comm_internal_keyval

int xt_mpi_comm_internal_keyval = MPI_KEYVAL_INVALID

static

Definition at line 195 of file xt_mpi.c.

xt_mpi_tag_ub_val

int xt_mpi_tag_ub_val

static

Definition at line 243 of file xt_mpi.c.