orgqr_batch_scratchpad_size (Strided Version)¶
Computes size of scratchpad memory required for orgqr_batch
(Strided 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 orgqr_batch
(Strided Version) function should be able to hold.
API¶
Syntax¶
namespace oneapi::mkl::lapack {
std::int64_t orgqr_batch_scratchpad_size(cl::sycl::queue &queue,
std::int64_t m,
std::int64_t n,
std::int64_t k,
std::int64_t lda,
std::int64_t stride_a,
std::int64_t stride_tau,
std::int64_t batch_size)
}
Input Parameters¶
- queue
Device queue where calculations will be performed.
- m
The number of rows in the matrices
A
i (0 ≤ m
).- n
The number of columns in the matrices
A
i (0 ≤ n
).- k
the number of elementary reflectors whose product defines the matrices
Q
i (0 ≤k
≤n
) .- lda
The leading dimension of
A
i (lda
≤m
).- stride_a
The stride between the beginnings of matrices
A
i inside the batch arraya
.- stride_tau
The stride between the beginnings of arrays
tau
i inside the arraytau
.- batch_size
Specifies the number of problems in a batch.
Exceptions¶
Exception |
Description |
---|---|
|
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 orgqr_batch
(Strided Version) function should be able to hold.