Utilities.hxx File Reference

Code utilities such as matrix and vector multiplications. More...

#include "AMReX_REAL.H"
#include "AMReX_Scan.H"
#include "cctk_Types.h"
#include <cctk.h>

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Functions
AMREX_GPU_DEVICE AMREX_GPU_HOST AMREX_FORCE_INLINE CCTK_ATTRIBUTE_ALWAYS_INLINE amrex::GpuArray< CCTK_REAL, 3 >	SMatVecMul (amrex::GpuArray< CCTK_REAL, 6 > A, amrex::GpuArray< CCTK_REAL, 3 > V)
AMREX_GPU_DEVICE AMREX_GPU_HOST AMREX_FORCE_INLINE CCTK_ATTRIBUTE_ALWAYS_INLINE CCTK_REAL	VecVecMul (amrex::GpuArray< CCTK_REAL, 3 > U, amrex::GpuArray< CCTK_REAL, 3 > V)

Detailed Description

Code utilities such as matrix and vector multiplications.

This file contains the definition of some functions that could be helpful at the developing stage.

Function Documentation

SMatVecMul()

AMREX_GPU_DEVICE AMREX_GPU_HOST AMREX_FORCE_INLINE CCTK_ATTRIBUTE_ALWAYS_INLINE amrex::GpuArray< CCTK_REAL, 3 > SMatVecMul	(	amrex::GpuArray< CCTK_REAL, 6 >	A,
		amrex::GpuArray< CCTK_REAL, 3 >	V
	)

Symmetric matrix and vector multiplication.

This function computes the Symmetric matrix and vector multiplication using that the size 3x3 matrices can be stored as a vector of size 6 we can compute its multiplication with any vector.

Parameters

A	Vector of size 6 Symmetric matrix.
V	Vector of size 3.

Returns

A vector of size 3 result.

VecVecMul()

AMREX_GPU_DEVICE AMREX_GPU_HOST AMREX_FORCE_INLINE CCTK_ATTRIBUTE_ALWAYS_INLINE CCTK_REAL VecVecMul	(	amrex::GpuArray< CCTK_REAL, 3 >	U,
		amrex::GpuArray< CCTK_REAL, 3 >	V
	)

Vector Vector cartesian product.

Parameters

U	Vector of size 3.
V	Vector of size 3.

Returns

A Real number result.