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Xpetra::TripleMatrixMultiply< Scalar, LocalOrdinal, GlobalOrdinal, Node > Class Template Reference

#include <Xpetra_TripleMatrixMultiply.hpp>

Static Public Member Functions

static void MultiplyRAP (const Matrix &R, bool transposeR, const Matrix &A, bool transposeA, const Matrix &P, bool transposeP, Matrix &Ac, bool call_FillComplete_on_result=true, bool doOptimizeStorage=true, const std::string &label=std::string(), const RCP< ParameterList > &params=null)
 

Detailed Description

template<class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
class Xpetra::TripleMatrixMultiply< Scalar, LocalOrdinal, GlobalOrdinal, Node >

Definition at line 75 of file Xpetra_TripleMatrixMultiply.hpp.

Member Function Documentation

template<class Scalar , class LocalOrdinal , class GlobalOrdinal , class Node >
static void Xpetra::TripleMatrixMultiply< Scalar, LocalOrdinal, GlobalOrdinal, Node >::MultiplyRAP ( const Matrix &  R,
bool  transposeR,
const Matrix &  A,
bool  transposeA,
const Matrix &  P,
bool  transposeP,
Matrix &  Ac,
bool  call_FillComplete_on_result = true,
bool  doOptimizeStorage = true,
const std::string &  label = std::string(),
const RCP< ParameterList > &  params = null 
)
inlinestatic

Given CrsMatrix objects A, B and C, form the product C = A*B. In a parallel setting, A and B need not have matching distributions, but C needs to have the same row-map as A (if transposeA is false). At this time C=AT*B and C=A*BT are known to not work. However, C=A*B and C=AT*BT are known to work, Kurtis Nusbaum 03/24/2011

Parameters
AInput, must already have had 'FillComplete()' called.
transposeAInput, whether to use transpose of matrix A.
BInput, must already have had 'FillComplete()' called.
transposeBInput, whether to use transpose of matrix B.
CResult. On entry to this method, it doesn't matter whether FillComplete() has already been called on C or not. If it has, then C's graph must already contain all nonzero locations that will be produced when forming the product A*B. On exit, C.FillComplete() will have been called, unless the last argument to this function is specified to be false.
call_FillComplete_on_resultOptional argument, defaults to true. Power users may specify this argument to be false if they DON'T want this function to call C.FillComplete. (It is often useful to allow this function to call C.FillComplete, in cases where one or both of the input matrices are rectangular and it is not trivial to know which maps to use for the domain- and range-maps.)

Definition at line 105 of file Xpetra_TripleMatrixMultiply.hpp.

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