#include <common.h>

Public Member Functions
	CommData ()

	~CommData ()

	CommData (CommData const &other)
	copy constructor sets created to zero More...

CommData &	operator= (CommData const &other)

	CommData (MPI_Comm cm)
	create active communicator wrapper More...

	CommData (int rank, int color, int np)
	create non-active communicator wrapper More...

	CommData (int rank, int color, CommData parent)
	create active subcomm from parent comm which must be active More...

void	activate (MPI_Comm parent)
	activate this subcommunicator by splitting parent_comm More...

void	deactivate ()

double	estimate_bcast_time (int64_t msg_sz)

double	estimate_allred_time (int64_t msg_sz, MPI_Op op)

double	estimate_red_time (int64_t msg_sz, MPI_Op op)

double	estimate_alltoall_time (int64_t chunk_sz)

double	estimate_alltoallv_time (int64_t tot_sz)

void	bcast (void *buf, int64_t count, MPI_Datatype mdtype, int root)
	broadcast, same interface as MPI_Bcast, but excluding the comm More...

void	allred (void inbuf, void outbuf, int64_t count, MPI_Datatype mdtype, MPI_Op op)
	allreduce, same interface as MPI_Allreduce, but excluding the comm More...

void	red (void inbuf, void outbuf, int64_t count, MPI_Datatype mdtype, MPI_Op op, int root)
	reduce, same interface as MPI_Reduce, but excluding the comm More...

void	all_to_allv (void send_buffer, int64_t const send_counts, int64_t const send_displs, int64_t datum_size, void recv_buffer, int64_t const recv_counts, int64_t const recv_displs)
	performs all-to-all-v with 64-bit integer counts and offset on arbitrary length types (datum_size), and uses point-to-point when all-to-all-v sparse More...

Data Fields
MPI_Comm	cm

int	np

int	rank

int	color

int	alive

int	created

Detailed Description

Definition at line 127 of file common.h.

Constructor & Destructor Documentation

CTF_int::CommData::CommData ( )

Definition at line 217 of file common.cxx.

CTF_int::CommData::~CommData ( )

Definition at line 222 of file common.cxx.

CTF_int::CommData::CommData ( CommData const & other )

copy constructor sets created to zero

Definition at line 226 of file common.cxx.

References alive, cm, color, np, ctf.core::np(), rank, and ctf.core::rank().

CTF_int::CommData::CommData ( MPI_Comm cm )

create active communicator wrapper

Parameters

[in] cm MPI_Comm defining this wrapper

Definition at line 246 of file common.cxx.

References ctf.core::np(), and ctf.core::rank().

CTF_int::CommData::CommData	(	int	rank,
		int	color,
		int	np
	)

create non-active communicator wrapper

Parameters

[in]	rank	rank within this comm
[in]	color	identifier of comm within parent
[in]	np	number of processors within this comm

Definition at line 254 of file common.cxx.

References ctf.core::np(), and ctf.core::rank().

CTF_int::CommData::CommData	(	int	rank,
		int	color,
		CommData	parent
	)

create active subcomm from parent comm which must be active

Parameters

[in]	rank	processor rank within subcomm
[in]	color	identifier of subcomm within this comm
[in]	parent	comm to split

Definition at line 262 of file common.cxx.

References alive, ASSERT, cm, ctf.core::np(), and ctf.core::rank().

Member Function Documentation

void CTF_int::CommData::activate ( MPI_Comm parent )

activate this subcommunicator by splitting parent_comm

Parameters

[in] parent communicator to split

Definition at line 272 of file common.cxx.

References ASSERT, ctf.core::np(), and ctf.core::rank().

Referenced by CTF_int::topology::activate().

void CTF_int::CommData::all_to_allv	(	void *	send_buffer,
		int64_t const *	send_counts,
		int64_t const *	send_displs,
		int64_t	datum_size,
		void *	recv_buffer,
		int64_t const *	recv_counts,
		int64_t const *	recv_displs
	)

performs all-to-all-v with 64-bit integer counts and offset on arbitrary length types (datum_size), and uses point-to-point when all-to-all-v sparse

Parameters

[in]	send_buffer	data to send
[in]	send_counts	number of datums to send to each process
[in]	send_displs	displacements of datum sets in sen_buffer
[in]	datum_size	size of MPI_datatype to use
[in,out]	recv_buffer	data to recv
[in]	recv_counts	number of datums to recv to each process
[in]	recv_displs	displacements of datum sets in sen_buffer