ungtr_scratchpad_size¶
Computes size of scratchpad memory required for ungtr (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 ungtr (buffer or USM version) function should be able to hold.
API¶
Syntax¶
namespace oneapi::mkl::lapack {
template<typename T>
std::int64_t ungtr_scratchpad_size(cl::sycl::queue &queue,
mkl::uplo uplo,
std::int64_t n,
std::int64_t lda)
}
Input Parameters¶
- queue
Device queue where calculations by the ungtr (buffer or USM version) function will be performed.
- uplo
Must be uplo::upper or uplo::lower. Uses the same uplo as supplied to the hetrd (USM Version) function.
- n
The order of matrix
Q(0≤n).- lda
The leading dimension of
a(n≤lda).
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 ungtr (buffer or USM version) function should be able to hold.