Visible to Intel only — GUID: GUID-A54AA62A-07DB-4825-8F22-31FC9D072E04
Visible to Intel only — GUID: GUID-A54AA62A-07DB-4825-8F22-31FC9D072E04
sdsdot
Computes a vector-vector dot product with double precision.
Description
The sdsdot routines perform a dot product between two vectors with double precision. The operation is defined as:
sdsdot (Buffer Version)
Syntax
namespace oneapi::mkl::blas::column_major { void sdsdot(sycl::queue &queue, std::int64_t n, float sb, sycl::buffer<float,1> &x, std::int64_t incx, sycl::buffer<float,1> &y, std::int64_t incy, sycl::buffer<float,1> &result) }
namespace oneapi::mkl::blas::row_major { void sdsdot(sycl::queue &queue, std::int64_t n, float sb, sycl::buffer<float,1> &x, std::int64_t incx, sycl::buffer<float,1> &y, std::int64_t incy, sycl::buffer<float,1> &result) }
Input Parameters
- queue
-
The queue where the routine should be executed.
- n
-
Number of elements in vectors x and y.
- sb
-
Single precision scalar to be added to the dot product.
- x
-
Buffer holding input vector x. Size of the buffer must be at least (1 + (n - 1)*abs(incx)). See ref:matrix-storage for more details.
- incx
-
Stride of vector x.
- y
-
Buffer holding input vector y. Size of the buffer must be at least (1 + (n - 1)*abs(incxy)). See ref:matrix-storage for more details.
- incy
-
Stride of vector y.
Output Parameters
- result
-
Buffer where the result (a scalar) will be stored. If n < 0 the result is sb.
sdsdot (USM Version)
Syntax
namespace oneapi::mkl::blas::column_major { sycl::event sdsdot(sycl::queue &queue, std::int64_t n, float sb, const float *x, std::int64_t incx, const float *y, std::int64_t incy, float *result, const std::vector<sycl::event> &dependencies = {}) }
namespace oneapi::mkl::blas::row_major { sycl::event sdsdot(sycl::queue &queue, std::int64_t n, float sb, const float *x, std::int64_t incx, const float *y, std::int64_t incy, float *result, const std::vector<sycl::event> &dependencies = {}) }
Input Parameters
- queue
-
The queue where the routine should be executed.
- n
-
Number of elements in vectors x and y.
- sb
-
Single precision scalar to be added to the dot product.
- x
-
Pointer to input vector x. Size of the array must be at least (1 + (n - 1)*abs(incx)). See ref:matrix-storage for more details.
- incx
-
Stride of vector x.
- y
-
Pointer to the input vector y. Size of the array must be at least (1 + (n - 1)*abs(incy)). See ref:matrix-storage for more details.
- incy
-
Stride of vector y.
- dependencies
-
List of events to wait for before starting computation, if any. If omitted, defaults to no dependencies.
Output Parameters
- result
-
Pointer to where the result (a scalar) will be stored. If n < 0 the result is sb.
Return Values
Output event to wait on to ensure computation is complete.