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ElementGather Class Reference

Represents a subset of the indices of a vector, and the operation of gathering elements from these indices into another vector. More...

#include <ElementGather.hh>

Inheritance diagram for ElementGather:

List of all members.

Public Methods
virtual void	gather (double alpha, const IotrVector &x, double beta, IotrVector &y) const=0
	y = beta * y + alpha * M * x
virtual void	gatherThenScale (double alpha, const IotrVector &x, double beta, IotrVector &y, const IotrVector &d) const=0
	y = D * ( beta * y + alpha * E * x )
virtual void	scatter (double alpha, const IotrVector &x, double beta, IotrVector &y) const=0
	the other elements untouched
virtual void	unionWith (const ElementGather &b, ElementGather *&abunion, ElementGather *&union2a, ElementGather *&union2b) const=0
	Scales the appropriate elements in x leaving others untouched.

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Detailed Description

Represents a subset of the indices of a vector, and the operation of gathering elements from these indices into another vector.

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

• ElementGather.hh

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