YAC: src/core/yac_mpi_internal.h File Reference

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#include <stdint.h>
#include <mpi.h>
#include "utils_core.h"
#include "yac_mpi_common.h"
#include "yac_mpi.h"

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Data Structures
struct	yac_group_comm

Macros
#define	YAC_MPI_SIZE_T MPI_UINT8_T

#define	YAC_MPI_SIZE_T_TYPE uint8_t

#define	YAC_ALLTOALLV_P2P_DEC(N, T)

Functions
void	yac_alltoallv_p2p (void const send_buffer, size_t const sendcounts, size_t const sdispls, void recv_buffer, size_t const recvcounts, size_t const rdispls, size_t dt_size, MPI_Datatype dt, MPI_Comm comm, char const *caller, int line)

void	yac_alltoallv_p2p_group (void const send_buffer, int const sendcounts, int const sdispls, void recv_buffer, int const recvcounts, int const rdispls, size_t dt_size, MPI_Datatype dt, struct yac_group_comm group_comm)

void	yac_allreduce_sum_dble (double *buffer, int count, struct yac_group_comm group_comm)

void	yac_allgather_size_t (const size_t sendbuf, size_t recvbuf, int count, struct yac_group_comm group_comm)

void	yac_bcast_group (void *buffer, int count, MPI_Datatype datatype, int root, struct yac_group_comm group_comm)

struct yac_group_comm	yac_group_comm_new (MPI_Comm comm)

void	yac_group_comm_delete (struct yac_group_comm group_comm)

int	yac_group_comm_get_rank (struct yac_group_comm group_comm)

int	yac_group_comm_get_size (struct yac_group_comm group_comm)

int	yac_group_comm_get_global_rank (struct yac_group_comm group_comm)

int	yac_group_comm_get_global_size (struct yac_group_comm group_comm)

void	yac_group_comm_split (struct yac_group_comm group_comm, int split_rank, struct yac_group_comm local_group_comm, struct yac_group_comm remote_group_comm)

MPI_Datatype	yac_get_bounding_circle_mpi_datatype (MPI_Comm comm)

MPI_Datatype	yac_create_resized (MPI_Datatype dt, size_t new_size, MPI_Comm comm)

void	yac_generate_alltoallv_args (int count, size_t const sendcounts, size_t recvcounts, size_t sdispls, size_t rdispls, MPI_Comm comm)

void	yac_get_comm_buffers (int count, size_t sendcounts, size_t recvcounts, size_t sdispls, size_t rdispls, MPI_Comm comm)

void	yac_free_comm_buffers (size_t sendcounts, size_t recvcounts, size_t sdispls, size_t rdispls)

size_t	yac_string_get_pack_size (char const caller, char const string, MPI_Comm comm, int allow_null)
	Compute number of bytes required to pack a string for MPI transport.

void	yac_string_pack (char const caller, char const string, void buffer, int buffer_size, int position, MPI_Comm comm, int allow_null)
	Pack a C string into a provided buffer using MPI_Pack semantics.

char *	yac_string_unpack (void const buffer, int buffer_size, int position, MPI_Comm comm)
	Unpack a C string from a buffer packed with yac_string_pack.

Macro Definition Documentation

◆ YAC_ALLTOALLV_P2P_DEC

#define YAC_ALLTOALLV_P2P_DEC	(		N,
			T )

Value:

void yac_alltoallv_ ## N ## _p2p( \
  T const * send_buffer, size_t const * sendcounts, size_t const * sdispls, \
  T * recv_buffer, size_t const * recvcounts, size_t const * rdispls, \
  MPI_Comm comm, char const * caller, int line); \

Definition at line 36 of file yac_mpi_internal.h.

◆ YAC_MPI_SIZE_T

#define YAC_MPI_SIZE_T MPI_UINT8_T

Definition at line 15 of file yac_mpi_internal.h.

◆ YAC_MPI_SIZE_T_TYPE

#define YAC_MPI_SIZE_T_TYPE uint8_t

Definition at line 16 of file yac_mpi_internal.h.

Function Documentation

◆ yac_allgather_size_t()

void yac_allgather_size_t	(	const size_t *	sendbuf,
		size_t *	recvbuf,
		int	count,
		struct yac_group_comm	group_comm )

Definition at line 368 of file yac_mpi.c.

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◆ yac_allreduce_sum_dble()

void yac_allreduce_sum_dble	(	double *	buffer,
		int	count,
		struct yac_group_comm	group_comm )

Definition at line 296 of file yac_mpi.c.

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◆ yac_alltoallv_p2p()

void yac_alltoallv_p2p	(	void const *	send_buffer,
		size_t const *	sendcounts,
		size_t const *	sdispls,
		void *	recv_buffer,
		size_t const *	recvcounts,
		size_t const *	rdispls,
		size_t	dt_size,
		MPI_Datatype	dt,
		MPI_Comm	comm,
		char const *	caller,
		int	line )

Definition at line 132 of file yac_mpi.c.

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◆ yac_alltoallv_p2p_group()

void yac_alltoallv_p2p_group	(	void const *	send_buffer,
		int const *	sendcounts,
		int const *	sdispls,
		void *	recv_buffer,
		int const *	recvcounts,
		int const *	rdispls,
		size_t	dt_size,
		MPI_Datatype	dt,
		struct yac_group_comm	group_comm )

Definition at line 243 of file yac_mpi.c.

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◆ yac_bcast_group()

void yac_bcast_group	(	void *	buffer,
		int	count,
		MPI_Datatype	datatype,
		int	root,
		struct yac_group_comm	group_comm )

Definition at line 412 of file yac_mpi.c.

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◆ yac_create_resized()

MPI_Datatype yac_create_resized	(	MPI_Datatype	dt,
		size_t	new_size,
		MPI_Comm	comm )

Definition at line 557 of file yac_mpi.c.

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◆ yac_free_comm_buffers()

void yac_free_comm_buffers	(	size_t *	sendcounts,
		size_t *	recvcounts,
		size_t *	sdispls,
		size_t *	rdispls )

Definition at line 634 of file yac_mpi.c.

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◆ yac_generate_alltoallv_args()

void yac_generate_alltoallv_args	(	int	count,
		size_t const *	sendcounts,
		size_t *	recvcounts,
		size_t *	sdispls,
		size_t *	rdispls,
		MPI_Comm	comm )

Definition at line 578 of file yac_mpi.c.

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◆ yac_get_bounding_circle_mpi_datatype()

MPI_Datatype yac_get_bounding_circle_mpi_datatype ( MPI_Comm comm )

Definition at line 537 of file yac_mpi.c.

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◆ yac_get_comm_buffers()

void yac_get_comm_buffers	(	int	count,
		size_t **	sendcounts,
		size_t **	recvcounts,
		size_t **	sdispls,
		size_t **	rdispls,
		MPI_Comm	comm )

Definition at line 603 of file yac_mpi.c.

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◆ yac_group_comm_delete()

void yac_group_comm_delete ( struct yac_group_comm group_comm )

Definition at line 487 of file yac_mpi.c.

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◆ yac_group_comm_get_global_rank()

int yac_group_comm_get_global_rank ( struct yac_group_comm group_comm )

Definition at line 500 of file yac_mpi.c.

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◆ yac_group_comm_get_global_size()

int yac_group_comm_get_global_size ( struct yac_group_comm group_comm )

Definition at line 506 of file yac_mpi.c.

◆ yac_group_comm_get_rank()

int yac_group_comm_get_rank ( struct yac_group_comm group_comm )

Definition at line 492 of file yac_mpi.c.

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◆ yac_group_comm_get_size()

int yac_group_comm_get_size ( struct yac_group_comm group_comm )

Definition at line 496 of file yac_mpi.c.

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◆ yac_group_comm_new()

struct yac_group_comm yac_group_comm_new ( MPI_Comm comm )

Definition at line 477 of file yac_mpi.c.

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◆ yac_group_comm_split()

void yac_group_comm_split	(	struct yac_group_comm	group_comm,
		int	split_rank,
		struct yac_group_comm *	local_group_comm,
		struct yac_group_comm *	remote_group_comm )

Definition at line 512 of file yac_mpi.c.

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◆ yac_string_get_pack_size()

size_t yac_string_get_pack_size	(	char const *	caller,
		char const *	string,
		MPI_Comm	comm,
		int	allow_null )

Compute number of bytes required to pack a string for MPI transport.

This function returns the number of bytes that will be required to pack the given C string using MPI_Pack semantics on the provided communicator. If allow_null is non-zero, a NULL string is permitted and the returned size accounts for the representation of a NULL string.

Parameters

[in]	caller	Name of the calling function (used for diagnostics).
[in]	string	NULL-terminated C string to measure, or NULL if allowed.
[in]	comm	MPI communicator whose datatype sizing semantics are used.
[in]	allow_null	Non-zero if NULL strings are permitted.

Returns: Number of bytes required to pack string (may be zero).

Definition at line 646 of file yac_mpi.c.

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◆ yac_string_pack()

void yac_string_pack	(	char const *	caller,
		char const *	string,
		void *	buffer,
		int	buffer_size,
		int *	position,
		MPI_Comm	comm,
		int	allow_null )

Pack a C string into a provided buffer using MPI_Pack semantics.

Packs the given NULL-terminated string (or the representation of NULL if allow_null is non-zero) into buffer starting at *position. The position is updated to point immediately after the packed data.

The function will use buffer_size to ensure no overflow is performed; if there is insufficient space, behavior depends on the MPI implementation (typically MPI_Pack will return an error).

Parameters

[in]	caller	Name of the calling function (used for diagnostics).
[in]	string	NULL-terminated C string to pack, or NULL if allowed.
[out]	buffer	Destination buffer for packed data.
[in]	buffer_size	Size of `buffer` in bytes.
[in,out]	position	Pointer to current pack position; updated on return.
[in]	comm	MPI communicator used for packing.
[in]	allow_null	Non-zero if NULL strings are permitted.

Definition at line 667 of file yac_mpi.c.

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◆ yac_string_unpack()

char * yac_string_unpack	(	void const *	buffer,
		int	buffer_size,
		int *	position,
		MPI_Comm	comm )

Unpack a C string from a buffer packed with yac_string_pack.

Unpacks a string from buffer at *position using MPI_Unpack semantics. The returned pointer is a newly allocated NULL-terminated C string which the caller is responsible for freeing with free(). If a NULL-string sentinel was packed (when allow_null was used during packing), this function returns NULL.

Parameters

[in]	buffer	Source buffer containing packed data.
[in]	buffer_size	Size of `buffer` in bytes.
[in,out]	position	Pointer to current unpack position; updated on return.
[in]	comm	MPI communicator used for unpacking.

Returns: Pointer to freshly allocated NUL-terminated string, or NULL if a NULL sentinel was unpacked. Caller must free the returned pointer.

Definition at line 697 of file yac_mpi.c.

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Data Structures

Macros

Functions

Macro Definition Documentation

◆ YAC_ALLTOALLV_P2P_DEC

◆ YAC_MPI_SIZE_T

◆ YAC_MPI_SIZE_T_TYPE

Function Documentation

◆ yac_allgather_size_t()

◆ yac_allreduce_sum_dble()

◆ yac_alltoallv_p2p()

◆ yac_alltoallv_p2p_group()

◆ yac_bcast_group()

◆ yac_create_resized()

◆ yac_free_comm_buffers()

◆ yac_generate_alltoallv_args()

◆ yac_get_bounding_circle_mpi_datatype()

◆ yac_get_comm_buffers()

◆ yac_group_comm_delete()

◆ yac_group_comm_get_global_rank()

◆ yac_group_comm_get_global_size()

◆ yac_group_comm_get_rank()

◆ yac_group_comm_get_size()

◆ yac_group_comm_new()

◆ yac_group_comm_split()

◆ yac_string_get_pack_size()

◆ yac_string_pack()

◆ yac_string_unpack()