hetrd_scratchpad_size#
Computes size of scratchpad memory required for hetrd function.
Description
hetrd_scratchpad_size
supports the following precisions.
T
std::complex<float>
std::complex<double>
Computes the number of elements of type T
the scratchpad memory to be passed to hetrd function should be able to hold.
Calls to this routine must specify the template parameter
explicitly.
hetrd_scratchpad_size#
Syntax
namespace oneapi::mkl::lapack {
template <typename T>
std::int64_t hetrd_scratchpad_size(sycl::queue &queue, oneapi::mkl::uplo upper_lower, std::int64_t n, std::int64_t lda)
}
Input Parameters
- queue
Device queue where calculations by hetrd function will be performed.
- upper_lower
Must be
uplo::upper
oruplo::lower
.If
upper_lower = uplo::upper
,a
stores the upper triangular part of \(A\) and \(B\).If
upper_lower = uplo::lower
,a
stores the lower triangular part of \(A\).- n
The order of the matrices \(A\) and \(B\) (\(0 \le n\)).
- lda
The leading dimension of
a
. Currently,lda
is not referenced in this function.
Return Value
The number of elements of type T
the scratchpad memory to be passed to hetrd function should be able to hold.
Parent topic: LAPACK Singular Value and Eigenvalue Problem Routines