getrs_scratchpad_size¶
Computes size of scratchpad memory required for getrs (USM Version)
function. This routine belongs to the
oneapi::mkl::lapack
namespace.
Syntax
namespace oneapi::mkl::lapack {
template<typename T>
std::int64_t getrs_scratchpad_size(cl::sycl::queue &queue, mkl::transpose trans, std::int64_t n, std::int64_t nrhs, std::int64_t lda, std::int64_t ldb)
}
Description
Computes the number of elements of type T the scratchpad memory to be passed to the getrs (buffer or USM version) function should be able to hold.
Input Parameters
- queue
Device queue where calculations by the getrs (buffer or USM version) function will be performed.
- trans
Indicates the form of the equations:
If
trans=mkl::transpose::nontrans
, thenA*X = B
is solved forX
.If
trans=mkl::transpose::trans
, thenAT*X = B
is solved forX
.If
trans=mkl::transpose::conjtrans
, thenAH*X = B
is solved forX
.- n
The order of the matrix
A
and the number of rows in matrixB(0≤n)
.- nrhs
The number of right-hand sides (
0≤nrhs
).- lda
The leading dimension of a.
- ldb
The leading dimension of b.
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. |
Return Values
The number of elements of type T the scratchpad memory to be passed to the getrs (buffer or USM version) function should be able to hold.