SwapHeavierToLighterNeighbours

#include \(<\tilde{ }\)/domain/loadBalancer/SwapHeavierToLighterNeighbours.h\(>\)

class SwapHeavierToLighterNeighbours: public LoadBalancer

LoadBalancer

A SwapHeavierToLighterNeighbours is an object used to balance a PartitionedDomain. It does this by shedding the boundary vertices on the heaviest loaded partition (subdomain).

// Constructors

// Destructor

// Public Methods

Sets numRealeases to \(1\) and factorGreater to \(1.0\). These are the paramemeters used in the balance() method.

Sets the parameters used in the balance() method.

Does nothing.

For numRelease times the Vertices of theWeightedGraph are iterated through. For each Vertex, \(i\), the weight of the Vertex is compared to those of it’s adjacent Vertices, \(other\), (this is done by looping through the adjacency ID of the Vertex), if the vertex weight is factorGreater times greater than the other Vertices load then swapBoundary(i, other) is invoked on the DomainPartitioner. Returns \(0\) if successful, otherwise a negative number and a warning message are returned if either no link has been set to the DomainPartitioner or swapBoundary() returns a negative number.