hipblasdspr2stridedbatched Interface Reference#
hipfort_hipblas::hipblasdspr2stridedbatched Interface Reference
BLAS Level 2 API. More...
Public Member Functions | |
| integer(kind(hipblas_status_success)) function | hipblasdspr2stridedbatched_ (handle, uplo, n, alpha, x, incx, stridex, y, incy, stridey, AP, strideAP, batchCount) |
| integer(kind(hipblas_status_success)) function | hipblasdspr2stridedbatched_rank_0 (handle, uplo, n, alpha, x, incx, stridex, y, incy, stridey, AP, strideAP, batchCount) |
| integer(kind(hipblas_status_success)) function | hipblasdspr2stridedbatched_rank_1 (handle, uplo, n, alpha, x, incx, stridex, y, incy, stridey, AP, strideAP, batchCount) |
Detailed Description
BLAS Level 2 API.
spr2StridedBatched performs the matrix-vector operation
A_i := A_i + alpha*x_i*y_i**T + alpha*y_i*x_i**T
where alpha is a scalar, x_i amd y_i are vectors, and A_i is an n by n symmetric matrix, supplied in packed form, for i = 1, ..., batchCount.
- Parameters
-
[in] handle [hipblasHandle_t] handle to the hipblas library context queue. [in] uplo [hipblasFillMode_t] specifies whether the 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) and the next one (x_i+1). [in] y device pointer pointing to the first vector (y_1). [in] incy [int] specifies the increment for the elements of each y_i. [in] stridey [hipblasStride] stride from the start of one vector (y_i) and the next one (y_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), etc. 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(n) = A(2,1), etc. 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) and the next (A_i+1) [in] batchCount [int] number of instances in the batch.
Member Function/Subroutine Documentation
◆ hipblasdspr2stridedbatched_()
| integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblasdspr2stridedbatched::hipblasdspr2stridedbatched_ | ( | type(c_ptr), value | handle, |
| integer(kind(hipblas_fill_mode_upper)), value | uplo, | ||
| integer(c_int), value | n, | ||
| real(c_double) | alpha, | ||
| type(c_ptr), value | x, | ||
| integer(c_int), value | incx, | ||
| integer(c_int64_t), value | stridex, | ||
| type(c_ptr), value | y, | ||
| integer(c_int), value | incy, | ||
| integer(c_int64_t), value | stridey, | ||
| type(c_ptr), value | AP, | ||
| integer(c_int64_t), value | strideAP, | ||
| integer(c_int), value | batchCount | ||
| ) |
◆ hipblasdspr2stridedbatched_rank_0()
| integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblasdspr2stridedbatched::hipblasdspr2stridedbatched_rank_0 | ( | type(c_ptr) | handle, |
| integer(kind(hipblas_fill_mode_upper)) | uplo, | ||
| integer(c_int) | n, | ||
| real(c_double) | alpha, | ||
| real(c_double), target | x, | ||
| integer(c_int) | incx, | ||
| integer(c_int64_t) | stridex, | ||
| real(c_double), target | y, | ||
| integer(c_int) | incy, | ||
| integer(c_int64_t) | stridey, | ||
| type(c_ptr) | AP, | ||
| integer(c_int64_t) | strideAP, | ||
| integer(c_int) | batchCount | ||
| ) |
◆ hipblasdspr2stridedbatched_rank_1()
| integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblasdspr2stridedbatched::hipblasdspr2stridedbatched_rank_1 | ( | type(c_ptr) | handle, |
| integer(kind(hipblas_fill_mode_upper)) | uplo, | ||
| integer(c_int) | n, | ||
| real(c_double) | alpha, | ||
| real(c_double), dimension(:), target | x, | ||
| integer(c_int) | incx, | ||
| integer(c_int64_t) | stridex, | ||
| real(c_double), dimension(:), target | y, | ||
| integer(c_int) | incy, | ||
| integer(c_int64_t) | stridey, | ||
| type(c_ptr) | AP, | ||
| integer(c_int64_t) | strideAP, | ||
| integer(c_int) | batchCount | ||
| ) |
The documentation for this interface was generated from the following file: