gels_batch_scratchpad_size (Group Version)#
Computes size of scratchpad memory required for gels_batch
(Group
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 gels_batch
(Group Version) function must be able to hold.
API#
Syntax#
namespace oneapi::mkl::lapack {
int64_t gels_batch_scratchpad_size(sycl::queue &queue,
mkl::transpose *trans,
int64_t *m,
int64_t *n,
int64_t *nrhs,
int64_t *lda,
int64_t *ldb,
int64_t group_count,
int64_t *group_sizes)
}
Input Parameters#
- queue
Device queue where calculations will be performed.
- trans
Array of group_count parameters trans g indicating the form of equations for the group g. Operation assumed to be done on input matrices
A
i. Only thetrans = mkl::transpose::nontrans
case is currently supported.- m
Array of group_count parameters m g specifying the number of rows of the matrices
A
i andB
i belonging to group g (m ≥ 0
).- n
Array of group_count parameters n g specifying the number of columns of the matrices
A
i belonging in group g (n ≥ 0
).- nrhs
Array of group_count parameters nrhs g specifying the number of right-hand sides: the number of columns in
B
i belonging in group g (nrhs ≥ 0
).- lda
Array of group_count parameters specifying the leading dimensions of
A
i belonging to group g (lda
≥max(1,m)
).- ldb
Array of group_count parameters specifying the leading dimensions of
B
i belonging to group g (ldb
≥max(1,max(m,n))
).- group_count
Specifies the number of groups of parameters. Must be at least 0.
- group_sizes
Array of
group_count
integers. Array element with indexg
specifies the number of problems to solve for each group of parametersg
. So the total number of problems to solve,batch_size
, is a sum of all parameter group sizes.
Exceptions#
Exception |
Description |
---|---|
|
This exception is thrown when an incorrect argument value is supplied. You can determine the position of the incorrect argument by using the |
Return Values#
The number of elements of type T
the scratchpad memory to be passed to the gels_batch
(Group Version) function must be able to hold.