#include <stdlib.h>
#include <comm_quda.h>

Functions
void	comm_init (int ndim, const int dims, QudaCommsMap rank_from_coords, void map_data)

int	comm_rank (void)

int	comm_size (void)

int	comm_gpuid (void)

MsgHandle *	comm_declare_send_displaced (void *buffer, const int displacement[], size_t nbytes)

MsgHandle *	comm_declare_receive_displaced (void *buffer, const int displacement[], size_t nbytes)

MsgHandle *	comm_declare_strided_send_displaced (void *buffer, const int displacement[], size_t blksize, int nblocks, size_t stride)

MsgHandle *	comm_declare_strided_receive_displaced (void *buffer, const int displacement[], size_t blksize, int nblocks, size_t stride)

void	comm_free (MsgHandle *mh)

void	comm_start (MsgHandle *mh)

void	comm_wait (MsgHandle *mh)

int	comm_query (MsgHandle *mh)

void	comm_allreduce (double *data)

void	comm_allreduce_max (double *data)

void	comm_allreduce_array (double *data, size_t size)

void	comm_allreduce_int (int *data)

void	comm_broadcast (void *data, size_t nbytes)

void	comm_barrier (void)

void	comm_abort (int status)

Function Documentation

void comm_abort ( int status )

Definition at line 54 of file comm_single.cpp.

void comm_allreduce ( double * data )

Definition at line 42 of file comm_single.cpp.

void comm_allreduce_array	(	double *	data,
		size_t	size
	)

Definition at line 46 of file comm_single.cpp.

void comm_allreduce_int ( int * data )

Definition at line 48 of file comm_single.cpp.

void comm_allreduce_max ( double * data )

Definition at line 44 of file comm_single.cpp.

void comm_barrier ( void )

Definition at line 52 of file comm_single.cpp.

void comm_broadcast	(	void *	data,
		size_t	nbytes
	)

broadcast from rank 0

Definition at line 50 of file comm_single.cpp.

MsgHandle* comm_declare_receive_displaced	(	void *	buffer,
		const int	displacement[],
		size_t	nbytes
	)

Create a persistent message handler for a relative receive

Parameters

buffer	Buffer into which message will be received
dim	Dimension from message will be received
dir	Direction from messaged with be recived (0 - backwards, 1 forwards)
nbytes	Size of message in bytes

Declare a message handle for receiving from a node displaced in (x,y,z,t) according to "displacement"

Definition at line 23 of file comm_single.cpp.

MsgHandle* comm_declare_send_displaced	(	void *	buffer,
		const int	displacement[],
		size_t	nbytes
	)

Create a persistent message handler for a relative send

Parameters

buffer	Buffer from which message will be sent
dim	Dimension in which message will be sent
dir	Direction in which messaged with be sent (0 - backwards, 1 forwards)
nbytes	Size of message in bytes

Declare a message handle for sending to a node displaced in (x,y,z,t) according to "displacement"

Definition at line 20 of file comm_single.cpp.

MsgHandle* comm_declare_strided_receive_displaced	(	void *	buffer,
		const int	displacement[],
		size_t	blksize,
		int	nblocks,
		size_t	stride
	)

Create a persistent strided message handler for a displaced receive

Parameters

buffer	Buffer into which message will be received
displacement	Array of offsets specifying the relative node from which we are receiving
blksize	Size of block in bytes
nblocks	Number of blocks
stride	Stride between blocks in bytes

Declare a message handle for receiving from a node displaced in (x,y,z,t) according to "displacement"

Declare a message handle for strided receiving from a node displaced in (x,y,z,t) according to "displacement"

Definition at line 30 of file comm_single.cpp.

MsgHandle* comm_declare_strided_send_displaced	(	void *	buffer,
		const int	displacement[],
		size_t	blksize,
		int	nblocks,
		size_t	stride
	)

Create a persistent strided message handler for a displaced send

Parameters

buffer	Buffer from which message will be sent
displacement	Array of offsets specifying the relative node to which we are sending
blksize	Size of block in bytes
nblocks	Number of blocks
stride	Stride between blocks in bytes

Declare a message handle for sending to a node displaced in (x,y,z,t) according to "displacement"

Declare a message handle for strided sending to a node displaced in (x,y,z,t) according to "displacement"

Definition at line 26 of file comm_single.cpp.

void comm_free ( MsgHandle * mh )

Definition at line 34 of file comm_single.cpp.

int comm_gpuid ( void )

Definition at line 18 of file comm_single.cpp.

void comm_init	(	int	ndim,
		const int *	dims,
		QudaCommsMap	rank_from_coords,
		void *	map_data
	)

Dummy communications layer for single-GPU backend.

Definition at line 8 of file comm_single.cpp.

int comm_query ( MsgHandle * mh )

Definition at line 40 of file comm_single.cpp.

int comm_rank ( void )

Definition at line 14 of file comm_single.cpp.

int comm_size ( void )

Definition at line 16 of file comm_single.cpp.

void comm_start ( MsgHandle * mh )

Definition at line 36 of file comm_single.cpp.

void comm_wait ( MsgHandle * mh )

Definition at line 38 of file comm_single.cpp.

Functions

Function Documentation