nrm2¶
Computes the Euclidean norm of a vector.
Description¶
The nrm2
routines computes Euclidean norm of a vector
where:
x
is a vector ofn
elements.
API¶
Syntax¶
namespace oneapi::mkl::blas::column_major {
void nrm2(sycl::queue &queue,
std::int64_t n,
sycl::buffer<T,1> &x,
std::int64_t incx,
sycl::buffer<T_res,1> &result)
}
namespace oneapi::mkl::blas::row_major {
void nrm2(sycl::queue &queue,
std::int64_t n,
sycl::buffer<T,1> &x,
std::int64_t incx,
sycl::buffer<T_res,1> &result)
}
nrm2
supports the following precisions and devices.
T |
T_res |
Devices Supported |
---|---|---|
|
|
Host, CPU, and GPU |
|
|
Host, CPU, and GPU |
|
|
Host, CPU, and GPU |
|
|
Host, CPU, and GPU |
Input Parameters¶
- exec_queue
The queue where the routine should be executed.
- n
Number of elements in vector
x
.- x
Buffer holding input vector
x
. The buffer must be of size at least (1 + (n
- 1)*abs(incx
)). See Matrix and Vector Storage for more details.- incx
Stride of vector x.
Output Parameters¶
- result
Buffer where the Euclidean norm of the vector
x
will be stored.