Visible to Intel only — GUID: GUID-A131D647-B686-4571-92DE-8CB07DCF2AE2
Visible to Intel only — GUID: GUID-A131D647-B686-4571-92DE-8CB07DCF2AE2
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 must be able to hold.
API
Syntax
namespace oneapi::mkl::lapack { template<typename T> std::int64_t ungtr_scratchpad_size(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 (lda ≥ n).
Exceptions
Exception |
Description |
---|---|
mkl::lapack::exception |
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 must be able to hold.