rocblas_ssyr2k_batched Interface Reference#
hipfort_rocblas::rocblas_ssyr2k_batched Interface Reference
BLAS Level 3 API. More...
Public Member Functions | |
| integer(kind(rocblas_status_success)) function | rocblas_ssyr2k_batched_ (handle, uplo, trans, n, k, alpha, a, lda, b, ldb, beta, c, ldc, batch_count) |
Detailed Description
BLAS Level 3 API.
The syr2k_batched functions perform a batch of the matrix-matrix operations for a symmetric rank-2k update:
C_i := alpha*(op( A_i )*op( B_i )^T + op( B_i )*op( A_i )^T) + beta*C_i,
where alpha and beta are scalars, op(A_i) and op(B_i) are n by k matrices, and C_i is a symmetric n x n matrix stored as either upper or lower.
op( A_i ) = A_i, op( B_i ) = B_i, and A_i and B_i are n by k if trans == rocblas_operation_none op( A_i ) = A_i^T, op( B_i ) = B_i^T, and A_i and B_i are k by n if trans == rocblas_operation_transpose or for ssyr2k_batched and dsyr2k_batched when trans == rocblas_operation_conjugate_transpose
- Parameters
-
[in] handle - [rocblas_handle] handle to the rocBLAS library context queue. [in] uplo - [rocblas_fill] - rocblas_fill_upper: C_i is an upper triangular matrix.
- rocblas_fill_lower: C_i is a lower triangular matrix.
[in] trans - [rocblas_operation] - rocblas_operation_transpose: op( A_i ) = A_i^T, op( B_i ) = B_i^T
- rocblas_operation_none: op( A_i ) = A_i, op( B_i ) = B_i
- rocblas_operation_conjugate_transpose: op( A_i ) = A_i^T, op( B_i ) = B_i^T
- rocblas_operation_conjugate_transpose is not supported for complex types in csyr2k_batched and zsyr2k_batched.
[in] n - [rocblas_int] n specifies the number of rows and columns of C_i. n >= 0. [in] k - [rocblas_int] k specifies the number of columns of op(A). k >= 0. [in] alpha alpha specifies the scalar alpha. When alpha is zero, A is not referenced and A need not be set before entry. [in] A - device array of device pointers storing each matrix_i A of dimension (lda, k) when trans is rocblas_operation_none. Otherwise, of dimension (lda, n). [in] lda - [rocblas_int] lda specifies the first dimension of A_i. - If trans = rocblas_operation_none, lda >= max( 1, n ).
- Otherwise, lda >= max( 1, k ).
[in] B - device array of device pointers storing each matrix_i B of dimension (ldb, k) when trans is rocblas_operation_none. Otherwise, of dimension (ldb, n). [in] ldb - [rocblas_int] ldb specifies the first dimension of B. - If trans = rocblas_operation_none, ldb >= max( 1, n ),
- Otherwise, ldb >= max( 1, k ).
[in] beta beta specifies the scalar beta. When beta is zero, C need not be set before entry. [in] C - device array of device pointers storing each matrix C_i on the GPU. [in] ldc - [rocblas_int] ldc specifies the first dimension of C. ldc >= max( 1, n ). [in] batch_count - [rocblas_int] number of instances in the batch.
Member Function/Subroutine Documentation
◆ rocblas_ssyr2k_batched_()
| integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_ssyr2k_batched::rocblas_ssyr2k_batched_ | ( | type(c_ptr), value | handle, |
| integer(kind(rocblas_fill_upper)), value | uplo, | ||
| integer(kind(rocblas_operation_none)), value | trans, | ||
| integer(c_int), value | n, | ||
| integer(c_int), value | k, | ||
| real(c_float) | alpha, | ||
| type(c_ptr), value | a, | ||
| integer(c_int), value | lda, | ||
| type(c_ptr), value | b, | ||
| integer(c_int), value | ldb, | ||
| real(c_float) | beta, | ||
| type(c_ptr), value | c, | ||
| integer(c_int), value | ldc, | ||
| integer(c_int), value | batch_count | ||
| ) |
The documentation for this interface was generated from the following file: