Computes size of scratchpad memory required for potrf (USM Version) function. This routine belongs to the mkl::lapack namespace.
template<typename T>
std::int64_t potrf_scratchpad_size(cl::sycl::queue &queue, mkl::uplo uplo, std::int64_t n, std::int64_t lda);
Computes the number of elements of type T the scratchpad memory to be passed to the potrf (buffer or USM version) function should be able to hold.
Device queue where calculations by the potrf (buffer or USM version) function will be performed.
Indicates whether the upper or lower triangular part of A is stored and how A is factored:
If uplo=mkl::uplo::upper, the array a stores the upper triangular part of the matrix A, and the strictly lower triangular part of the matrix is not referenced.
If uplo=mkl::uplo::lower, the array a stores the lower triangular part of the matrix A, and the strictly upper triangular part of the matrix is not referenced.
Specifies the order of the matrix A (0≤n).
The leading dimension of A.
Exceptions
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. |
The number of elements of type T the scratchpad memory to be passed to the potrf (buffer or USM version) function should be able to hold.