rocblas_dot_strided_batched_ex Interface Reference

rocblas_dot_strided_batched_ex Interface Reference#

HIPFORT API Reference: hipfort_rocblas::rocblas_dot_strided_batched_ex Interface Reference
Public Member Functions | List of all members
hipfort_rocblas::rocblas_dot_strided_batched_ex Interface Reference

BLAS EX API. More...

Public Member Functions

integer(kind(rocblas_status_success)) function rocblas_dot_strided_batched_ex_ (handle, n, x, x_type, incx, stride_x, y, y_type, incy, stride_y, batch_count, myResult, result_type, execution_type)
 

Detailed Description

BLAS EX API.

dot_strided_batched_ex performs a batch of dot products of vectors x and y 

result_i = x_i * y_i;

dotc_strided_batched_ex performs a batch of dot products of the conjugate of complex vector x and complex vector y 

result_i = conjugate (x_i) * y_i;

where (x_i, y_i) is the i-th instance of the batch. x_i and y_i are vectors, for i = 1, ..., batch_count 

Currently supported datatypes are as follows:

--------------------------------------------------
| x_type | y_type | result_type | execution_type |
|--------|--------|-------------|----------------|
| f16_r  | f16_r  |    f16_r    |     f16_r      |
| f16_r  | f16_r  |    f16_r    |     f32_r      |
| bf16_r | bf16_r |    bf16_r   |     f32_r      |
| f32_r  | f32_r  |    f32_r    |     f32_r      |
| f64_r  | f64_r  |    f64_r    |     f64_r      |
| f32_c  | f32_c  |    f32_c    |     f32_c      |
| f64_c  | f64_c  |    f64_c    |     f64_c      |
--------------------------------------------------
Parameters
[in]handle[rocblas_handle] handle to the rocblas library context queue.
[in]n[rocblas_int] the number of elements in each x_i and y_i.
[in]xdevice pointer to the first vector (x_1) in the batch.
[in]x_type[rocblas_datatype] specifies the datatype of each vector x_i.
[in]incx[rocblas_int] specifies the increment for the elements of each x_i.
[in]stride_x[rocblas_stride] stride from the start of one vector (x_i) and the next one (x_i+1)
[in]ydevice pointer to the first vector (y_1) in the batch.
[in]y_type[rocblas_datatype] specifies the datatype of each vector y_i.
[in]incy[rocblas_int] specifies the increment for the elements of each y_i.
[in]stride_y[rocblas_stride] stride from the start of one vector (y_i) and the next one (y_i+1)
[in]batch_count[rocblas_int] number of instances in the batch
[in,out]resultdevice array or host array of batch_count size to store the dot products of each batch. return 0.0 for each element if n <= 0.
[in]result_type[rocblas_datatype] specifies the datatype of the result.
[in]execution_type[rocblas_datatype] specifies the datatype of computation.

Member Function/Subroutine Documentation

◆ rocblas_dot_strided_batched_ex_()

integer(kind(rocblas_status_success)) function hipfort_rocblas::rocblas_dot_strided_batched_ex::rocblas_dot_strided_batched_ex_ ( type(c_ptr), value  handle,
integer(c_int), value  n,
type(c_ptr), value  x,
integer(kind(rocblas_datatype_f16_r)), value  x_type,
integer(c_int), value  incx,
integer(c_int64_t), value  stride_x,
type(c_ptr), value  y,
integer(kind(rocblas_datatype_f16_r)), value  y_type,
integer(c_int), value  incy,
integer(c_int64_t), value  stride_y,
integer(c_int), value  batch_count,
type(c_ptr), value  myResult,
integer(kind(rocblas_datatype_f16_r)), value  result_type,
integer(kind(rocblas_datatype_f16_r)), value  execution_type 
)
The documentation for this interface was generated from the following file: