ungqr_scratchpad_size¶
Computes size of scratchpad memory required for ungqr (USM Version)
function. This routine belongs to the oneapi::mkl::lapack namespace.
Description¶
Computes the number of elements of type T the scratchpad memory to be passed to the ungqr (buffer or USM version) function should be able to hold.
API¶
Syntax¶
namespace oneapi::mkl::lapack {
template<typename T>
std::int64_t ungqr_scratchpad_size(cl::sycl::queue &queue,
std::int64_t m,
std::int64_t n,
std::int64_t k,
std::int64_t lda)
}
Input Parameters¶
- queue
Device queue where calculations by the ungqr (buffer or USM version) function will be performed.
- m
The number of rows in the matrix
A(0≤m).- n
The number of columns in the matrix
A(0≤n).- k
The number of elementary reflectors whose product defines the matrix
Q(0≤k≤n).- lda
The leading dimension of a (
lda≤m).
Exceptions¶
Exception |
Description |
|---|---|
|
This exception is thrown when an incorrect argument value is supplied. You can determine the position of the incorrect argument by the info() method of the exception object. |
Return Values¶
The number of elements of type T the scratchpad memory to be passed to the ungqr (buffer or USM version) function should be able to hold.