rocblas_sspmv_strided_batched Interface Reference#
hipfort_rocblas::rocblas_sspmv_strided_batched Interface Reference
BLAS Level 2 API. More...
Public Member Functions | |
| integer(kind(rocblas_status_success)) function | rocblas_sspmv_strided_batched_ (handle, uplo, n, alpha, a, stridea, x, incx, stridex, beta, y, incy, stridey, batch_count) |
| integer(kind(rocblas_status_success)) function | rocblas_sspmv_strided_batched_rank_0 (handle, uplo, n, alpha, a, stridea, x, incx, stridex, beta, y, incy, stridey, batch_count) |
| integer(kind(rocblas_status_success)) function | rocblas_sspmv_strided_batched_rank_1 (handle, uplo, n, alpha, a, stridea, x, incx, stridex, beta, y, incy, stridey, batch_count) |
Detailed Description
BLAS Level 2 API.
The spmv_strided_batched functions perform the matrix-vector operation:
y_i := alpha*A_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_ and y_i are vectors, and A_i is an n by n symmetric matrix, for i = 1, ..., batch_count. A should contain an upper or lower triangular n by n packed symmetric matrix.
- Parameters
-
[in] handle - [rocblas_handle] handle to the rocBLAS library context queue. [in] uplo - [rocblas_fill] specifies either upper (rocblas_fill_upper) or lower (rocblas_fill_lower). - if rocblas_fill_upper, the lower part of A is not referenced.
- if rocblas_fill_lower, the upper part of A is not referenced.
[in] n - [rocblas_int] number of rows and columns of each matrix A_i. [in] alpha device pointer or host pointer to scalar alpha. [in] A - Device pointer to the first matrix A_1 on the GPU. [in] strideA - [rocblas_stride] stride from the start of one matrix (A_i) to the next one (A_i+1). [in] x - Device pointer to the first vector x_1 on the GPU. [in] incx - [rocblas_int] specifies the increment for the elements of each vector x_i. [in] stridex - [rocblas_stride] stride from the start of one vector (x_i) to the next one (x_i+1). There are no restrictions placed on stridex. However, ensure that stridex is of an appropriate size. This typically means stridex >= n * incx. stridex should be non zero. [in] beta - device pointer or host pointer to scalar beta. [out] y - Device pointer to the first vector y_1 on the GPU. [in] incy - [rocblas_int] specifies the increment for the elements of each vector y_i. [in] stridey - [rocblas_stride] stride from the start of one vector (y_i) to the next one (y_i+1). There are no restrictions placed on stridey. However, ensure that stridey is of an appropriate size. This typically means stridey >= n * incy. stridey should be non zero. [in] batch_count - [rocblas_int] number of instances in the batch.
Member Function/Subroutine Documentation
◆ rocblas_sspmv_strided_batched_()
| integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_sspmv_strided_batched::rocblas_sspmv_strided_batched_ | ( | type(c_ptr), value | handle, |
| integer(kind(rocblas_fill_upper)), value | uplo, | ||
| integer(c_int), value | n, | ||
| real(c_float) | alpha, | ||
| type(c_ptr), value | a, | ||
| integer(c_int64_t), value | stridea, | ||
| type(c_ptr), value | x, | ||
| integer(c_int), value | incx, | ||
| integer(c_int64_t), value | stridex, | ||
| real(c_float) | beta, | ||
| type(c_ptr), value | y, | ||
| integer(c_int), value | incy, | ||
| integer(c_int64_t), value | stridey, | ||
| integer(c_int), value | batch_count | ||
| ) |
◆ rocblas_sspmv_strided_batched_rank_0()
| integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_sspmv_strided_batched::rocblas_sspmv_strided_batched_rank_0 | ( | type(c_ptr) | handle, |
| integer(kind(rocblas_fill_upper)) | uplo, | ||
| integer(c_int) | n, | ||
| real(c_float) | alpha, | ||
| real(c_float), target | a, | ||
| integer(c_int64_t) | stridea, | ||
| real(c_float), target | x, | ||
| integer(c_int) | incx, | ||
| integer(c_int64_t) | stridex, | ||
| real(c_float) | beta, | ||
| real(c_float), target | y, | ||
| integer(c_int) | incy, | ||
| integer(c_int64_t) | stridey, | ||
| integer(c_int) | batch_count | ||
| ) |
◆ rocblas_sspmv_strided_batched_rank_1()
| integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_sspmv_strided_batched::rocblas_sspmv_strided_batched_rank_1 | ( | type(c_ptr) | handle, |
| integer(kind(rocblas_fill_upper)) | uplo, | ||
| integer(c_int) | n, | ||
| real(c_float) | alpha, | ||
| real(c_float), dimension(:), target | a, | ||
| integer(c_int64_t) | stridea, | ||
| real(c_float), dimension(:), target | x, | ||
| integer(c_int) | incx, | ||
| integer(c_int64_t) | stridex, | ||
| real(c_float) | beta, | ||
| real(c_float), dimension(:), target | y, | ||
| integer(c_int) | incy, | ||
| integer(c_int64_t) | stridey, | ||
| integer(c_int) | batch_count | ||
| ) |
The documentation for this interface was generated from the following file: