hipblasssprstridedbatched Interface Reference

• hipfort_hipblas
• hipblasssprstridedbatched

Public Member Functions | List of all members

hipfort_hipblas::hipblasssprstridedbatched Interface Reference

BLAS Level 2 API. More...

Public Member Functions
integer(kind(hipblas_status_success)) function	hipblasssprstridedbatched_ (handle, uplo, n, alpha, x, incx, stridex, ap, stridea, batchcount)
integer(kind(hipblas_status_success)) function	hipblasssprstridedbatched_rank_0 (handle, uplo, n, alpha, x, incx, stridex, ap, stridea, batchcount)
integer(kind(hipblas_status_success)) function	hipblasssprstridedbatched_rank_1 (handle, uplo, n, alpha, x, incx, stridex, ap, stridea, batchcount)

Detailed Description

BLAS Level 2 API.

The sprStridedBatched functions perform the matrix-vector operations:

A_i := A_i + alpha*x_i*x_i**T

where alpha is a scalar, x_i is a vector, and A_i is an n by n symmetric matrix, supplied in packed form, for i = 1, ..., batchCount.

• Supported precisions in rocBLAS : s, d, c, and z.
• Supported precisions in cuBLAS : No support.

Parameters

[in]	handle	- [hipblasHandle_t] handle to the hipBLAS library context queue.
[in]	uplo	- [hipblasFillMode_t] specifies either upper (HIPBLAS_FILL_MODE_UPPER) or lower (HIPBLAS_FILL_MODE_LOWER): HIPBLAS_FILL_MODE_UPPER: The upper triangular part of each A_i is supplied in AP. HIPBLAS_FILL_MODE_LOWER: The lower triangular part of each A_i is supplied in AP.
[in]	n	- [int] the number of rows and columns of each matrix A_i. Must be at least 0.
[in]	alpha	device pointer or host pointer to scalar alpha.
[in]	x	- device pointer pointing to the first vector (x_1).
[in]	incx	- [int] specifies the increment for the elements of each x_i.
[in]	stridex	- [hipblasStride] stride from the start of one vector (x_i) to the next one (x_i+1).
[in,out]	AP	- device pointer storing the packed version of the specified triangular portion of each symmetric matrix A_i. Points to the first A_1. if uplo == HIPBLAS_FILL_MODE_UPPER: The upper triangular portion of each symmetric matrix A_i is supplied. The matrix is compacted so that AP contains the triangular portion column-by-column so that: AP(0) = A(0,0) AP(1) = A(0,1) AP(2) = A(1,1), and so forth. Ex: (HIPBLAS_FILL_MODE_UPPER; n = 4) 1 2 4 7 2 3 5 8 -> [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] 4 5 6 9 7 8 9 0 if uplo == HIPBLAS_FILL_MODE_LOWER: The lower triangular portion of each symmetric matrix A_i is supplied. The matrix is compacted so that AP contains the triangular portion column-by-column so that: AP(0) = A(0,0) AP(1) = A(1,0) AP(2) = A(2,1), and so forth. Ex: (HIPBLAS_FILL_MODE_LOWER; n = 4) 1 2 3 4 2 5 6 7 -> [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] 3 6 8 9 4 7 9 0
[in]	strideA	- [hipblasStride] stride from the start of one (A_i) to the next (A_i+1).
[in]	batchCount	- [int] number of instances in the batch.

Member Function/Subroutine Documentation

◆ hipblasssprstridedbatched_()

integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblasssprstridedbatched::hipblasssprstridedbatched_	(	type(c_ptr), value	handle,
		integer(kind(hipblas_fill_mode_upper)), value	uplo,
		integer(c_int), value	n,
		real(c_float)	alpha,
		type(c_ptr), value	x,
		integer(c_int), value	incx,
		integer(c_int64_t), value	stridex,
		type(c_ptr), value	ap,
		integer(c_int64_t), value	stridea,
		integer(c_int), value	batchcount
	)

◆ hipblasssprstridedbatched_rank_0()

integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblasssprstridedbatched::hipblasssprstridedbatched_rank_0	(	type(c_ptr)	handle,
		integer(kind(hipblas_fill_mode_upper))	uplo,
		integer(c_int)	n,
		real(c_float)	alpha,
		real(c_float), target	x,
		integer(c_int)	incx,
		integer(c_int64_t)	stridex,
		real(c_float), target	ap,
		integer(c_int64_t)	stridea,
		integer(c_int)	batchcount
	)

◆ hipblasssprstridedbatched_rank_1()

integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblasssprstridedbatched::hipblasssprstridedbatched_rank_1	(	type(c_ptr)	handle,
		integer(kind(hipblas_fill_mode_upper))	uplo,
		integer(c_int)	n,
		real(c_float)	alpha,
		real(c_float), dimension(:), target	x,
		integer(c_int)	incx,
		integer(c_int64_t)	stridex,
		real(c_float), dimension(:), target	ap,
		integer(c_int64_t)	stridea,
		integer(c_int)	batchcount
	)

---

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

• hipfort_hipblas.F90