gesvda_batch_scratchpad_size (Strided Version)#
Computes size of scratchpad memory required for gesvda_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 gesvda_batch
(Strided Version) function must be able to hold.
API#
Syntax#
namespace oneapi::mkl::lapack {
int64_t gesvda_batch_scratchpad_size(sycl::queue &queue,
int64_t m,
int64_t n,
int64_t lda,
int64_t stride_a,
int64_t ldu,
int64_t stride_u,
int64_t ldvt,
int64_t stride_vt,
int64_t batch_size)
}
Input Parameters#
- queue
Device queue where calculations will be performed.
- m
The number of rows in the matrices
A
i.- n
The number of columns in the matrices
A
i.- lda
The leading dimension of a. Must be at least
max(1, m)
.- stride_a
The stride between the beginnings of matrices
A
i inside the batch array a. Must be at leastmax(1, lda * n)
.- stride_s
The stride between the beginnings of arrays
S
i inside the array s. Must be at leastmin(m,n)
.- ldu
The leading dimension of
U
i. Must be at leastmax(1, m)
.- stride_u
The stride between the beginnings of matrices
U
i inside the batch array u. Must be at leastmax(1, ldu * m)
.- ldvt
The leading dimension of
V
iT . Must be at leastmax(1, n)
.- stride_vt
The stride between the beginnings of matrices
V
iTinside the batch array vt. Must be at leastmax(1, ldvt * n)
.
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 gesvda_batch
(Strided Version) function must be able to hold.