Tpetra_Details_defaultGemm.hpp File Reference

Default implementation of local (but process-global) GEMM (dense matrix-matrix multiply), for Tpetra::MultiVector. More...

#include "TpetraCore_config.h"
#include "Kokkos_ArithTraits.hpp"
#include "Kokkos_Complex.hpp"
#include <type_traits>

Go to the source code of this file.

Namespaces
	Tpetra
	Namespace Tpetra contains the class and methods constituting the Tpetra library.
	Tpetra::Details
	Namespace for Tpetra implementation details.

Functions
template<class ViewType1 , class ViewType2 , class ViewType3 , class CoefficientType , class IndexType = int>
void	Tpetra::Details::Blas::Default::gemm (const char transA, const char transB, const CoefficientType &alpha, const ViewType1 &A, const ViewType2 &B, const CoefficientType &beta, const ViewType3 &C)
	Default implementation of dense matrix-matrix multiply on a single MPI process: C := alpha*A*B + beta*C. More...

Detailed Description

Default implementation of local (but process-global) GEMM (dense matrix-matrix multiply), for Tpetra::MultiVector.

Warning

This file, and its contents, are an implementation detail of Tpetra::MultiVector. Either may disappear or change at any time.

Definition in file Tpetra_Details_defaultGemm.hpp.

Function Documentation

gemm()

template<class ViewType1 , class ViewType2 , class ViewType3 , class CoefficientType , class IndexType = int>

void Tpetra::Details::Blas::Default::gemm	(	const char	transA,
		const char	transB,
		const CoefficientType &	alpha,
		const ViewType1 &	A,
		const ViewType2 &	B,
		const CoefficientType &	beta,
		const ViewType3 &	C
	)

Default implementation of dense matrix-matrix multiply on a single MPI process: C := alpha*A*B + beta*C.

Template Parameters

ViewType1	Type of the first matrix input A.
ViewType2	Type of the second matrix input B.
ViewType3	Type of the third matrix input/output C.
CoefficientType	Type of the scalar coefficients alpha and beta.
IndexType	Type of the index used in for loops; defaults to int.

ViewType1, ViewType2, and ViewType3 are all Kokkos::View specializations.

Definition at line 81 of file Tpetra_Details_defaultGemm.hpp.