rocsolver_cunglq Interface Reference

• hipfort_rocsolver
• rocsolver_cunglq

Public Member Functions | List of all members

hipfort_rocsolver::rocsolver_cunglq Interface Reference

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Public Member Functions
integer(kind(rocblas_status_success)) function	rocsolver_cunglq_full_rank (handle, m, n, k, A, lda, ipiv)
integer(kind(rocblas_status_success)) function	rocsolver_cunglq_orig (handle, m, n, k, A, lda, ipiv)
integer(kind(rocblas_status_success)) function	rocsolver_cunglq_rank_0 (handle, m, n, k, A, lda, ipiv)
integer(kind(rocblas_status_success)) function	rocsolver_cunglq_rank_1 (handle, m, n, k, A, lda, ipiv)

Detailed Description

!

UNGLQ generates a m-by-n complex Matrix Q with orthonormal rows.

(This is the blocked version of the algorithm).

The matrix Q is defined as the first m rows of the product of k Householder reflectors of order n

Q = H(k)H  H(k-1)H  ...  H(1)H

Householder matrices H(i) are never stored, they are computed from its corresponding Householder vector v(i) and scalar ipiv_i as returned by GELQF.

Parameters

[in]	handle	rocblas_handle.
[in]	m	rocblas_int. 0 <= m <= n. The number of rows of the matrix Q.
[in]	n	rocblas_int. n >= 0. The number of columns of the matrix Q.
[in]	k	rocblas_int. 0 <= k <= m. The number of Householder reflectors.
[in,out]	A	pointer to type. Array on the GPU of dimension ldan. On entry, the i-th row has Householder vector v(i), for i = 1,2,...,k as returned in the first k rows of matrix A of GELQF. On exit, the computed matrix Q.
[in]	lda	rocblas_int. lda >= m. Specifies the leading dimension of A.
[in]	ipiv	pointer to type. Array on the GPU of dimension at least k. The scalar factors of the Householder matrices H(i) as returned by GELQF.

Member Function/Subroutine Documentation

◆ rocsolver_cunglq_full_rank()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_cunglq::rocsolver_cunglq_full_rank	(	type(c_ptr), value	handle,
		integer(c_int), value	m,
		integer(c_int), value	n,
		integer(c_int), value	k,
		complex(c_float_complex), dimension(:,:), target	A,
		integer(c_int), value	lda,
		complex(c_float_complex), dimension(:), target	ipiv
	)

◆ rocsolver_cunglq_orig()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_cunglq::rocsolver_cunglq_orig	(	type(c_ptr), value	handle,
		integer(c_int), value	m,
		integer(c_int), value	n,
		integer(c_int), value	k,
		type(c_ptr), value	A,
		integer(c_int), value	lda,
		type(c_ptr), value	ipiv
	)

◆ rocsolver_cunglq_rank_0()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_cunglq::rocsolver_cunglq_rank_0	(	type(c_ptr), value	handle,
		integer(c_int), value	m,
		integer(c_int), value	n,
		integer(c_int), value	k,
		complex(c_float_complex), target	A,
		integer(c_int), value	lda,
		complex(c_float_complex), target	ipiv
	)

◆ rocsolver_cunglq_rank_1()

integer(kind(rocblas_status_success)) function hipfort_rocsolver::rocsolver_cunglq::rocsolver_cunglq_rank_1	(	type(c_ptr), value	handle,
		integer(c_int), value	m,
		integer(c_int), value	n,
		integer(c_int), value	k,
		complex(c_float_complex), dimension(:), target	A,
		integer(c_int), value	lda,
		complex(c_float_complex), dimension(:), target	ipiv
	)

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

• hipfort_rocsolver.f