Implements a dummy message passing interface (MPI). More...

Public Member Functions
void	quit (int rc)
int	size () const
	The size of the MPI world.
int	rank () const
	Our rank in the MPI world.
bool	isFirstInRank () const
bool	isLastInRank () const
void	defineGhostChunk (Int nGFs, Int nTotal, Int nGhost)
	Defines a MPI datatype for the ghost chunk, which consists of nGFs blocks where each block size is nGhost Reals, repeating every nTotal strides.
bool	exchangeBoundaries (void left_ghost, void left_edge, void right_edge, void right_ghost, bool receiveEdges)
	Exchange the boundary data with the neighboring ranks.
bool	waitExchange ()
	Wait the other ranks to have received our edges.
void	abortExchange (Real *dummyData)
	Nonblocking signal to all the ranks that we are quitting integration.

Detailed Description

Implements a dummy message passing interface (MPI).

To enable the real MPI code, use mpic++ with -D_USEMPI.

Warning:: The maximal slicing is not compliant with MPI since the boundary value problem for the slicing differential equation requires access to the whole grid!

Definition at line 14 of file mpiDummyWorld.h.

Member Function Documentation

void DummyMPIWorld::abortExchange ( Real * dummyData ) [inline]

Nonblocking signal to all the ranks that we are quitting integration.

Definition at line 56 of file mpiDummyWorld.h.

    {
    }

void DummyMPIWorld::defineGhostChunk	(	Int	nGFs,
		Int	nTotal,
		Int	nGhost
	)		`[inline]`

Defines a MPI datatype for the ghost chunk, which consists of nGFs blocks where each block size is nGhost Reals, repeating every nTotal strides.

Definition at line 31 of file mpiDummyWorld.h.

{}

bool DummyMPIWorld::exchangeBoundaries	(	void *	left_ghost,
		void *	left_edge,
		void *	right_edge,
		void *	right_ghost,
		bool	receiveEdges
	)		`[inline]`

Exchange the boundary data with the neighboring ranks.

Parameters:

left_ghost	Where to put the right edge of the left neighbor
left_edge	Pointer to the left edge of our data
right_edge	Pointer to the right edge of our data
right_ghost	Where to put the left edge of the right neighbor
receiveEdges	If to receive the edges (otherwise just send the ghosts)

Definition at line 36 of file mpiDummyWorld.h.

    {
        return true;
    }

bool DummyMPIWorld::isFirstInRank ( ) const [inline]

Definition at line 25 of file mpiDummyWorld.h.

{ return true; }

bool DummyMPIWorld::isLastInRank ( ) const [inline]

Definition at line 26 of file mpiDummyWorld.h.

{ return true; }

void DummyMPIWorld::quit ( int rc ) [inline]

Definition at line 17 of file mpiDummyWorld.h.

    {
        exit( rc );
    }

int DummyMPIWorld::rank ( ) const [inline]

Our rank in the MPI world.

Definition at line 23 of file mpiDummyWorld.h.

int DummyMPIWorld::size ( ) const [inline]

The size of the MPI world.

Definition at line 22 of file mpiDummyWorld.h.

bool DummyMPIWorld::waitExchange ( ) [inline]

Wait the other ranks to have received our edges.

Definition at line 49 of file mpiDummyWorld.h.

    {
        return true;
    }

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