gmx::PhysicalNodeCommunicator Class Reference

#include <gromacs/utility/physicalnodecommunicator.h>

Description

Holds a communicator for the physical node of this rank.

This communicator should only be used for appropriate tasks, e.g. during initialization and finalization. It can contain ranks from PP, PME and multiple simulations with multisim, so is not suited for general-purpose communication.

Public Member Functions
	PhysicalNodeCommunicator (MPI_Comm world, int physicalNodeId)
	Constructor. More...
void	barrier () const
	Creates a barrier for all ranks on this physical node.

Public Attributes
MPI_Comm	comm_
	Communicator for all ranks on this physical node.
int	size_
	Number of ranks on this physical node, corresponds to MPI_Comm_size of comm.
int	rank_
	Rank ID within this physical node, corresponds to MPI_Comm_rank of comm.
MPI_Comm_ptr	commGuard_
	RAII handler for cleaning up comm_ only when appropriate.

Constructor & Destructor Documentation

gmx::PhysicalNodeCommunicator::PhysicalNodeCommunicator	(	MPI_Comm	world,
		int	physicalNodeId
	)

Constructor.

Communicates within world to make intra-communicator comm_ between all ranks that share physicalNodeId.

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

• src/gromacs/utility/physicalnodecommunicator.h
• src/gromacs/utility/physicalnodecommunicator.cpp