<em>lat2</em>: Converts triangular matrix between single and double

Functions
void	magmablas_clat2z (magma_uplo_t uplo, magma_int_t n, magmaFloatComplex_const_ptr SA, magma_int_t ldsa, magmaDoubleComplex_ptr A, magma_int_t lda, magma_queue_t queue, magma_int_t *info)
	CLAT2Z converts a single-complex matrix, SA, to a double-complex matrix, A.
void	magmablas_dlat2s (magma_uplo_t uplo, magma_int_t n, magmaDouble_const_ptr A, magma_int_t lda, magmaFloat_ptr SA, magma_int_t ldsa, magma_queue_t queue, magma_int_t *info)
	DLAT2S converts a double-real matrix, A, to a single-real matrix, SA.
void	magmablas_slat2d (magma_uplo_t uplo, magma_int_t n, magmaFloat_const_ptr SA, magma_int_t ldsa, magmaDouble_ptr A, magma_int_t lda, magma_queue_t queue, magma_int_t *info)
	SLAT2D converts a single-real matrix, SA, to a double-real matrix, A.
void	magmablas_zlat2c (magma_uplo_t uplo, magma_int_t n, magmaDoubleComplex_const_ptr A, magma_int_t lda, magmaFloatComplex_ptr SA, magma_int_t ldsa, magma_queue_t queue, magma_int_t *info)
	ZLAT2C converts a double-complex matrix, A, to a single-complex matrix, SA.

Detailed Description

Function Documentation

magmablas_clat2z()

void magmablas_clat2z	(	magma_uplo_t	uplo,
		magma_int_t	n,
		magmaFloatComplex_const_ptr	SA,
		magma_int_t	ldsa,
		magmaDoubleComplex_ptr	A,
		magma_int_t	lda,
		magma_queue_t	queue,
		magma_int_t *	info )

CLAT2Z converts a single-complex matrix, SA, to a double-complex matrix, A.

Note that while it is possible to overflow while converting from double to single, it is not possible to overflow when converting from single to double.

Parameters

[in]	uplo	magma_uplo_t Specifies the part of the matrix A to be converted. = MagmaUpper: Upper triangular part = MagmaLower: Lower triangular part
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	A	COMPLEX_16 array, dimension (LDA,n) On entry, the n-by-n coefficient matrix A.
[in]	lda	INTEGER The leading dimension of the array A. LDA >= max(1,n).
[out]	SA	COMPLEX array, dimension (LDSA,n) On exit, if INFO=0, the n-by-n coefficient matrix SA; if INFO > 0, the content of SA is unspecified.
[in]	ldsa	INTEGER The leading dimension of the array SA. LDSA >= max(1,n).
[out]	info	INTEGER = 0: successful exit. < 0: if INFO = -i, the i-th argument had an illegal value
[in]	queue	magma_queue_t Queue to execute in.

magmablas_dlat2s()

void magmablas_dlat2s	(	magma_uplo_t	uplo,
		magma_int_t	n,
		magmaDouble_const_ptr	A,
		magma_int_t	lda,
		magmaFloat_ptr	SA,
		magma_int_t	ldsa,
		magma_queue_t	queue,
		magma_int_t *	info )

DLAT2S converts a double-real matrix, A, to a single-real matrix, SA.

RMAX is the overflow for the single-real arithmetic. DLAT2S checks that all the entries of A are between -RMAX and RMAX. If not, the conversion is aborted and a magma_dlat2s_flag is raised.

Parameters

[in]	uplo	magma_uplo_t Specifies the part of the matrix A to be converted. = MagmaUpper: Upper triangular part = MagmaLower: Lower triangular part
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	A	DOUBLE PRECISION array, dimension (LDA,n) On entry, the n-by-n coefficient matrix A.
[in]	lda	INTEGER The leading dimension of the array A. LDA >= max(1,n).
[out]	SA	SINGLE PRECISION array, dimension (LDSA,n) On exit, if INFO=0, the n-by-n coefficient matrix SA; if INFO > 0, the content of SA is unspecified.
[in]	ldsa	INTEGER The leading dimension of the array SA. LDSA >= max(1,n).
[out]	info	INTEGER = 0: successful exit. < 0: if INFO = -i, the i-th argument had an illegal value = 1: an entry of the matrix A is greater than the SINGLE PRECISION overflow threshold, in this case, the content of SA on exit is unspecified.
[in]	queue	magma_queue_t Queue to execute in.

magmablas_slat2d()

void magmablas_slat2d	(	magma_uplo_t	uplo,
		magma_int_t	n,
		magmaFloat_const_ptr	SA,
		magma_int_t	ldsa,
		magmaDouble_ptr	A,
		magma_int_t	lda,
		magma_queue_t	queue,
		magma_int_t *	info )

SLAT2D converts a single-real matrix, SA, to a double-real matrix, A.

Note that while it is possible to overflow while converting from double to single, it is not possible to overflow when converting from single to double.

Parameters

[in]	uplo	magma_uplo_t Specifies the part of the matrix A to be converted. = MagmaUpper: Upper triangular part = MagmaLower: Lower triangular part
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	A	DOUBLE PRECISION array, dimension (LDA,n) On entry, the n-by-n coefficient matrix A.
[in]	lda	INTEGER The leading dimension of the array A. LDA >= max(1,n).
[out]	SA	SINGLE PRECISION array, dimension (LDSA,n) On exit, if INFO=0, the n-by-n coefficient matrix SA; if INFO > 0, the content of SA is unspecified.
[in]	ldsa	INTEGER The leading dimension of the array SA. LDSA >= max(1,n).
[out]	info	INTEGER = 0: successful exit. < 0: if INFO = -i, the i-th argument had an illegal value
[in]	queue	magma_queue_t Queue to execute in.

magmablas_zlat2c()

void magmablas_zlat2c	(	magma_uplo_t	uplo,
		magma_int_t	n,
		magmaDoubleComplex_const_ptr	A,
		magma_int_t	lda,
		magmaFloatComplex_ptr	SA,
		magma_int_t	ldsa,
		magma_queue_t	queue,
		magma_int_t *	info )

ZLAT2C converts a double-complex matrix, A, to a single-complex matrix, SA.

RMAX is the overflow for the single-complex arithmetic. ZLAT2C checks that all the entries of A are between -RMAX and RMAX. If not, the conversion is aborted and a magma_zlat2c_flag is raised.

Parameters

[in]	uplo	magma_uplo_t Specifies the part of the matrix A to be converted. = MagmaUpper: Upper triangular part = MagmaLower: Lower triangular part
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	A	COMPLEX_16 array, dimension (LDA,n) On entry, the n-by-n coefficient matrix A.
[in]	lda	INTEGER The leading dimension of the array A. LDA >= max(1,n).
[out]	SA	COMPLEX array, dimension (LDSA,n) On exit, if INFO=0, the n-by-n coefficient matrix SA; if INFO > 0, the content of SA is unspecified.
[in]	ldsa	INTEGER The leading dimension of the array SA. LDSA >= max(1,n).
[out]	info	INTEGER = 0: successful exit. < 0: if INFO = -i, the i-th argument had an illegal value = 1: an entry of the matrix A is greater than the COMPLEX overflow threshold, in this case, the content of SA on exit is unspecified.
[in]	queue	magma_queue_t Queue to execute in.