comm_common.cpp File Reference

#include <unistd.h>
#include <quda_internal.h>
#include <comm_quda.h>

Go to the source code of this file.

Classes
struct	Topology_s

Functions
char *	comm_hostname (void)
double	comm_drand (void)
Topology *	comm_create_topology (int ndim, const int *dims, QudaCommsMap rank_from_coords, void *map_data)
void	comm_destroy_topology (Topology *topo)
int	comm_ndim (const Topology *topo)
const int *	comm_dims (const Topology *topo)
const int *	comm_coords (const Topology *topo)
const int *	comm_coords_from_rank (const Topology *topo, int rank)
int	comm_rank_from_coords (const Topology *topo, const int *coords)
int	comm_rank_displaced (const Topology *topo, const int displacement[])
void	comm_set_default_topology (Topology *topo)
Topology *	comm_default_topology (void)
int	comm_dim (int dim)
int	comm_coord (int dim)
MsgHandle *	comm_declare_send_relative (void *buffer, int dim, int dir, size_t nbytes)
MsgHandle *	comm_declare_receive_relative (void *buffer, int dim, int dir, size_t nbytes)
MsgHandle *	comm_declare_strided_send_relative (void *buffer, int dim, int dir, size_t blksize, int nblocks, size_t stride)
MsgHandle *	comm_declare_strided_receive_relative (void *buffer, int dim, int dir, size_t blksize, int nblocks, size_t stride)
void	comm_finalize (void)
void	comm_dim_partitioned_set (int dim)
int	comm_dim_partitioned (int dim)

Variables
Topology *	default_topo = NULL

Function Documentation

int comm_coord

(

int

dim

)

Definition at line 219 of file comm_common.cpp.

const int* comm_coords

(

const Topology *

topo

)

Definition at line 156 of file comm_common.cpp.

const int* comm_coords_from_rank	(	const Topology *	topo,
		int	rank
	)

Definition at line 162 of file comm_common.cpp.

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

Definition at line 93 of file comm_common.cpp.

MsgHandle* comm_declare_receive_relative	(	void *	buffer,
		int	dim,
		int	dir,
		size_t	nbytes
	)

Receive from the "dir" direction in the "dim" dimension

Definition at line 241 of file comm_common.cpp.

MsgHandle* comm_declare_send_relative	(	void *	buffer,
		int	dim,
		int	dir,
		size_t	nbytes
	)

Send to the "dir" direction in the "dim" dimension

Definition at line 229 of file comm_common.cpp.

MsgHandle* comm_declare_strided_receive_relative	(	void *	buffer,
		int	dim,
		int	dir,
		size_t	blksize,
		int	nblocks,
		size_t	stride
	)

Strided receive from the "dir" direction in the "dim" dimension

Definition at line 265 of file comm_common.cpp.

MsgHandle* comm_declare_strided_send_relative	(	void *	buffer,
		int	dim,
		int	dir,
		size_t	blksize,
		int	nblocks,
		size_t	stride
	)

Strided send to the "dir" direction in the "dim" dimension

Definition at line 252 of file comm_common.cpp.

Topology* comm_default_topology

(

void

)

Definition at line 203 of file comm_common.cpp.

void comm_destroy_topology

(

Topology *

topo

)

Definition at line 136 of file comm_common.cpp.

int comm_dim

(

int

dim

)

Definition at line 212 of file comm_common.cpp.

int comm_dim_partitioned

(

int

dim

)

Definition at line 290 of file comm_common.cpp.

void comm_dim_partitioned_set

(

int

dim

)

Definition at line 284 of file comm_common.cpp.

const int* comm_dims

(

const Topology *

topo

)

Definition at line 150 of file comm_common.cpp.

double comm_drand

(

void

)

We provide our own random number generator to avoid re-seeding rand(), which might also be used by the calling application. This is a clone of rand48(), provided by stdlib.h on UNIX.

Returns

a random double in the interval [0,1)

Definition at line 81 of file comm_common.cpp.

void comm_finalize

(

void

)

Definition at line 274 of file comm_common.cpp.

char* comm_hostname

(

void

)

Definition at line 57 of file comm_common.cpp.

int comm_ndim

(

const Topology *

topo

)

Definition at line 144 of file comm_common.cpp.

int comm_rank_displaced	(	const Topology *	topo,
		const int	displacement[]
	)

Definition at line 179 of file comm_common.cpp.

int comm_rank_from_coords	(	const Topology *	topo,
		const int *	coords
	)

Definition at line 168 of file comm_common.cpp.

void comm_set_default_topology

(

Topology *

topo

)

Definition at line 197 of file comm_common.cpp.

Variable Documentation

Topology* default_topo = NULL

Definition at line 195 of file comm_common.cpp.