Visible to Intel only — GUID: GUID-B01AA034-BF5F-44CA-944D-8417E65C69BB
Visible to Intel only — GUID: GUID-B01AA034-BF5F-44CA-944D-8417E65C69BB
hetrf_scratchpad_size
Computes size of scratchpad memory required for hetrf (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 hetrf (buffer or USM version) function should be able to hold.
API
Syntax
namespace oneapi::mkl::lapack { template<typename T> std::int64_t hetrf_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 hetrf (buffer or USM version) function will be performed.
- uplo
-
Indicates whether the upper or lower triangular part of A is stored and how A is factored:
If uplo = uplo::upper, the array a stores the upper triangular part of the matrix A, and A is factored as U*D*UH.
If uplo = uplo::lower, the array a stores the lower triangular part of the matrix A, and A is factored as L*D*LH.
- n
-
The order of matrix A (0 ≤ n).
- lda
-
The leading dimension of a.
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 hetrf (buffer or USM version) function must be able to hold.