hipblasdrotmgstridedbatched Interface Reference#
hipfort_hipblas::hipblasdrotmgstridedbatched Interface Reference
BLAS Level 1 API. More...
Public Member Functions | |
| integer(kind(hipblas_status_success)) function | hipblasdrotmgstridedbatched_ (handle, d1, stride_d1, d2, stride_d2, x1, stride_x1, y1, stride_y1, param, strideParam, batchCount) |
Detailed Description
BLAS Level 1 API.
rotmgStridedBatched creates the modified Givens rotation matrix for the strided batched vectors (d1_i * x1_i, d2_i * y1_i), for i = 1, ..., batchCount. Parameters may be stored in either host or device memory, location is specified by calling hipblasSetPointerMode. If the pointer mode is set to HIPBLAS_POINTER_MODE_HOST, this function blocks the CPU until the GPU has finished and the results are available in host memory. If the pointer mode is set to HIPBLAS_POINTER_MODE_DEVICE, this function returns immediately and synchronization is required to read the results.
- Parameters
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[in] handle [hipblasHandle_t] handle to the hipblas library context queue. [in,out] d1 device strided_batched array or host strided_batched array of input scalars that is overwritten. [in] stride_d1 [hipblasStride] specifies the increment between the beginning of d1_i and d1_(i+1) [in,out] d2 device strided_batched array or host strided_batched array of input scalars that is overwritten. [in] stride_d2 [hipblasStride] specifies the increment between the beginning of d2_i and d2_(i+1) [in,out] x1 device strided_batched array or host strided_batched array of input scalars that is overwritten. [in] stride_x1 [hipblasStride] specifies the increment between the beginning of x1_i and x1_(i+1) [in] y1 device strided_batched array or host strided_batched array of input scalars. [in] stride_y1 [hipblasStride] specifies the increment between the beginning of y1_i and y1_(i+1) [out] param device stridedBatched array or host stridedBatched array of vectors of 5 elements defining the rotation. param[0] = flag param[1] = H11 param[2] = H21 param[3] = H12 param[4] = H22 The flag parameter defines the form of H: flag = -1 => H = ( H11 H12 H21 H22 ) flag = 0 => H = ( 1.0 H12 H21 1.0 ) flag = 1 => H = ( H11 1.0 -1.0 H22 ) flag = -2 => H = ( 1.0 0.0 0.0 1.0 ) param may be stored in either host or device memory, location is specified by calling hipblasSetPointerMode. [in] strideParam [hipblasStride] specifies the increment between the beginning of param_i and param_(i + 1) [in] batchCount [int] the number of instances in the batch.
Member Function/Subroutine Documentation
◆ hipblasdrotmgstridedbatched_()
| integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblasdrotmgstridedbatched::hipblasdrotmgstridedbatched_ | ( | type(c_ptr), value | handle, |
| type(c_ptr), value | d1, | ||
| integer(c_int64_t), value | stride_d1, | ||
| type(c_ptr), value | d2, | ||
| integer(c_int64_t), value | stride_d2, | ||
| type(c_ptr), value | x1, | ||
| integer(c_int64_t), value | stride_x1, | ||
| type(c_ptr), value | y1, | ||
| integer(c_int64_t), value | stride_y1, | ||
| type(c_ptr), value | param, | ||
| integer(c_int64_t), value | strideParam, | ||
| integer(c_int), value | batchCount | ||
| ) |
The documentation for this interface was generated from the following file: