hipblassspmvbatched Interface Reference

• hipfort_hipblas
• hipblassspmvbatched

Public Member Functions | List of all members

hipfort_hipblas::hipblassspmvbatched Interface Reference

BLAS Level 2 API. More...

Public Member Functions
integer(kind(hipblas_status_success)) function	hipblassspmvbatched_ (handle, uplo, n, alpha, ap, x, incx, beta, y, incy, batchcount)

Detailed Description

BLAS Level 2 API.

The spmvBatched functions perform the matrix-vector operation:

y_i := alpha*AP_i*x_i + beta*y_i,

where (A_i, x_i, y_i) is the i-th instance of the batch, alpha and beta are scalars, x_i and y_i are vectors, and A_i is an n by n symmetric matrix, for i = 1, ..., batchCount. A should contain an upper or lower triangular n by n packed symmetric matrix.

• Supported precisions in rocBLAS : s and d.
• 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): If HIPBLAS_FILL_MODE_UPPER, the lower part of A is not referenced. If HIPBLAS_FILL_MODE_LOWER, the upper part of A is not referenced.
[in]	n	- [int] number of rows and columns of each matrix A_i.
[in]	alpha	device pointer or host pointer to scalar alpha.
[in]	AP	- device array of device pointers storing each matrix A_i.
[in]	x	- device array of device pointers storing each vector x_i.
[in]	incx	- [int] specifies the increment for the elements of each vector x_i.
[in]	beta	- device pointer or host pointer to scalar beta.
[out]	y	- device array of device pointers storing each vector y_i.
[in]	incy	- [int] specifies the increment for the elements of each vector y_i.
[in]	batchCount	- [int] number of instances in the batch.

Member Function/Subroutine Documentation

◆ hipblassspmvbatched_()

integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblassspmvbatched::hipblassspmvbatched_	(	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	ap,
		type(c_ptr), value	x,
		integer(c_int), value	incx,
		real(c_float)	beta,
		type(c_ptr), value	y,
		integer(c_int), value	incy,
		integer(c_int), value	batchcount
	)

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

• hipfort_hipblas.F90