rocsolver_slarfg Interface Reference

• hipfort_rocsolver
• rocsolver_slarfg

Public Member Functions | List of all members

hipfort_rocsolver::rocsolver_slarfg Interface Reference

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Public Member Functions
integer(kind(rocblas_status_success)) function	rocsolver_slarfg_rank_0 (handle, n, alpha, x, incx, tau)
integer(kind(rocblas_status_success)) function	rocsolver_slarfg_orig (handle, n, alpha, x, incx, tau)
integer(kind(rocblas_status_success)) function	rocsolver_slarfg_rank_1 (handle, n, alpha, x, incx, tau)

Detailed Description

!

LARFG generates an orthogonal Householder reflector H of order n.

Householder reflector H is such that

H  [alpha] = [beta]
    [  x  ]   [  0 ]

where x is an n-1 vector and alpha and beta are scalars. Matrix H can be generated as

H = I - tau  [1]  [1 v']
              [v]

with v an n-1 vector and tau a scalar.

Parameters

[in]	handle	rocblas_handle
[in]	n	rocblas_int. n >= 0. The order (size) of reflector H.
[in,out]	alpha	pointer to type. A scalar on the GPU. On input the scalar alpha, on output it is overwritten with beta.
[in,out]	x	pointer to type. Array on the GPU of size at least n-1. On input it is the vector x, on output it is overwritten with vector v.
[in]	incx	rocblas_int. incx > 0. The increment between consecutive elements of x.
[out]	tau	pointer to type. A scalar on the GPU. The scalar tau.

Member Function/Subroutine Documentation

◆ rocsolver_slarfg_orig()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_slarfg::rocsolver_slarfg_orig	(	type(c_ptr), value	handle,
		integer(c_int), value	n,
		real(c_float)	alpha,
		type(c_ptr), value	x,
		integer(c_int), value	incx,
		real(c_float)	tau
	)

◆ rocsolver_slarfg_rank_0()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_slarfg::rocsolver_slarfg_rank_0	(	type(c_ptr), value	handle,
		integer(c_int), value	n,
		real(c_float)	alpha,
		real(c_float), target	x,
		integer(c_int), value	incx,
		real(c_float)	tau
	)

◆ rocsolver_slarfg_rank_1()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_slarfg::rocsolver_slarfg_rank_1	(	type(c_ptr), value	handle,
		integer(c_int), value	n,
		real(c_float)	alpha,
		real(c_float), dimension(:), target	x,
		integer(c_int), value	incx,
		real(c_float)	tau
	)

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

• hipfort_rocsolver.f