domdec_network.cpp File Reference

#include "gmxpre.h"
#include "domdec_network.h"
#include "config.h"
#include <cstring>
#include <memory>
#include "gromacs/domdec/domdec_struct.h"
#include "gromacs/utility/arrayref.h"
#include "gromacs/utility/basedefinitions.h"
#include "gromacs/utility/gmxmpi.h"
#include "domdec_internal.h"

Include dependency graph for domdec_network.cpp:

Description

This file defines functions for (mostly) the domdec module to use MPI functionality.

Author

Berk Hess hess@.nosp@m.kth..nosp@m.se

Macros
#define	DDMAINRANK(dd)   ((dd)->mainrank)
	Returns the MPI rank of the domain decomposition main rank.

Functions
template<typename T >
static void	ddSendrecv (const struct gmx_domdec_t *dd, int ddDimensionIndex, int direction, T *sendBuffer, int numElementsToSend, T *receiveBuffer, int numElementsToReceive)
	Move data of type T in the communication region one cell along the domain decomposition. More...
template<typename T >
void	ddSendrecv (const gmx_domdec_t *dd, int ddDimensionIndex, int direction, gmx::ArrayRef< T > sendBuffer, gmx::ArrayRef< T > receiveBuffer)
	Move a view of T values in the communication region one cell along the domain decomposition. More...
template void	ddSendrecv (const gmx_domdec_t *, int, int, gmx::ArrayRef< int >, gmx::ArrayRef< int >)
	Specialization of extern template for int.
template void	ddSendrecv (const gmx_domdec_t *, int, int, gmx::ArrayRef< real >, gmx::ArrayRef< real >)
	Specialization of extern template for real.
template void	ddSendrecv (const gmx_domdec_t *, int, int, gmx::ArrayRef< gmx::RVec >, gmx::ArrayRef< gmx::RVec >)
	Specialization of extern template for gmx::RVec.
void	dd_sendrecv2_rvec (const struct gmx_domdec_t gmx_unused *dd, int gmx_unused ddimind, rvec gmx_unused *buf_s_fw, int gmx_unused n_s_fw, rvec gmx_unused *buf_r_fw, int gmx_unused n_r_fw, rvec gmx_unused *buf_s_bw, int gmx_unused n_s_bw, rvec gmx_unused *buf_r_bw, int gmx_unused n_r_bw)
void	dd_bcast (const gmx_domdec_t gmx_unused *dd, int gmx_unused nbytes, void gmx_unused *data)
void	dd_scatter (const gmx_domdec_t gmx_unused *dd, int gmx_unused nbytes, const void gmx_unused *src, void *dest)
void	dd_gather (const gmx_domdec_t gmx_unused *dd, int gmx_unused nbytes, const void gmx_unused *src, void gmx_unused *dest)
template<typename T >
void	dd_scatterv (const gmx_domdec_t gmx_unused *dd, gmx::ArrayRef< const int > gmx_unused scounts, gmx::ArrayRef< const int > gmx_unused disps, const T *sbuf, int rcount, T *rbuf)
template void	dd_scatterv (const gmx_domdec_t *dd, gmx::ArrayRef< const int > scounts, gmx::ArrayRef< const int > disps, const int *sbuf, int rcount, int *rbuf)
template void	dd_scatterv (const gmx_domdec_t *dd, gmx::ArrayRef< const int > scounts, gmx::ArrayRef< const int > disps, const gmx::RVec *sbuf, int rcount, gmx::RVec *rbuf)
template<typename T >
void	dd_gatherv (const gmx_domdec_t gmx_unused &dd, gmx::ArrayRef< const T > sendBuffer, gmx::ArrayRef< const int > rcounts, gmx::ArrayRef< const int > gmx_unused disps, gmx::ArrayRef< T > receiveBuffer)
template void	dd_gatherv (const gmx_domdec_t &dd, gmx::ArrayRef< const int > sendBuffer, gmx::ArrayRef< const int > rcounts, gmx::ArrayRef< const int > disps, gmx::ArrayRef< int > receiveBuffer)
template void	dd_gatherv (const gmx_domdec_t &dd, gmx::ArrayRef< const gmx::RVec > sendBuffer, gmx::ArrayRef< const int > rcounts, gmx::ArrayRef< const int > disps, gmx::ArrayRef< gmx::RVec > receiveBuffer)

Function Documentation

template<typename T >

static void ddSendrecv ( const struct gmx_domdec_t *  dd, int  ddDimensionIndex, int  direction, T *  sendBuffer, int  numElementsToSend, T *  receiveBuffer, int  numElementsToReceive  )

static

Move data of type T in the communication region one cell along the domain decomposition.

Moves in the dimension indexed by ddDimensionIndex, either forward (direction=dddirFoward) or backward (direction=dddirBackward).

template<typename T >

void ddSendrecv	(	const gmx_domdec_t *	dd,
		int	ddDimensionIndex,
		int	direction,
		gmx::ArrayRef< T >	sendBuffer,
		gmx::ArrayRef< T >	receiveBuffer
	)

Move a view of T values in the communication region one cell along the domain decomposition.

Moves in the dimension indexed by ddDimensionIndex, either forward (direction=dddirFoward) or backward (direction=dddirBackward).