#include <gromacs/domdec/haloexchange.h>

Description

Handles the halo communication of coordinates and forces.

Public Member Functions
	HaloExchange (PbcType pbcType)

void	setup (gmx_domdec_t dd, t_state localState, const gmx_ddbox_t &ddbox, t_forcerec *fr, const bool cellsChanged)
	Set up the halo communication, should be called after (re)partitioning.

void	initiateReceiveX (ArrayRef< RVec > x)
	Iniatiate a non-blocking receive of the halo coordinates x. More...

void	initiateSendX (const matrix box, ArrayRef< RVec > x)
	Initiate a non-blocking send of the halo coordinates x. More...

void	completeReceiveX ()
	Complete a non-blocking receive of coordinates for the complete halo. More...

void	completeSendX ()
	Ensures that x has been sent. More...

void	moveX (const matrix box, ArrayRef< RVec > x)
	Send and receive the halo coordinates, call the 4 methods above.

void	initiateReceiveF ()
	Initiate A non-blocking receive of the halo forces f. More...

void	initiateSendF (ArrayRef< const RVec > f)
	Initiate the non-blocking receive of the halo forces f. More...

void	completeReceiveF (ArrayRef< RVec > forces, ArrayRef< RVec > shiftForces)
	Ensures that f has been received and reduced the received forces. More...

void	completeSendF ()
	Ensures that f has been sent. More...

void	moveF (ArrayRef< RVec > f, ArrayRef< RVec > shiftForces)
	Send and receive the halo force, accumulates shift forces to `shiftForces` when non-empty.

Member Function Documentation

void gmx::HaloExchange::completeReceiveF	(	ArrayRef< RVec >	forces,
		ArrayRef< RVec >	shiftForces
	)

Ensures that f has been received and reduced the received forces.

If shiftForces is not empty, also updates the shift forces. Needs to be called after initiateReceiveF(). Call as late as possible.

void gmx::HaloExchange::completeReceiveX ( )

Complete a non-blocking receive of coordinates for the complete halo.

Needs to be called after initiateRecvX(). Call as late as possible.

void gmx::HaloExchange::completeSendF ( )

Ensures that f has been sent.

Needs to be called after initiateSendF(). Call as late as possible.

void gmx::HaloExchange::completeSendX ( )

Ensures that x has been sent.

Needs to be called after initiateSendX(). Call as late as possible.

void gmx::HaloExchange::initiateReceiveF ( )

Initiate A non-blocking receive of the halo forces f.

Should be called as early as possible for fast communication.

void gmx::HaloExchange::initiateReceiveX ( ArrayRef< RVec > x )

Iniatiate a non-blocking receive of the halo coordinates x.

Should be called as early as possible for fast communication.

void gmx::HaloExchange::initiateSendF ( ArrayRef< const RVec > f )

Initiate the non-blocking receive of the halo forces f.

Should be called as early as possible for fast communication.

void gmx::HaloExchange::initiateSendX	(	const matrix	box,
		ArrayRef< RVec >	x
	)

Initiate a non-blocking send of the halo coordinates x.

Should be called as early as possible when x is ready.

The documentation for this class was generated from the following files: