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
Ai. Only thetrans = mkl::transpose::nontranscase is currently supported.- m
Array of group_count parameters m g specifying the number of rows of the matrices
Ai andBi belonging to group g (m ≥ 0).- n
Array of group_count parameters n g specifying the number of columns of the matrices
Ai 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
Bi belonging in group g (nrhs ≥ 0).- lda
Array of group_count parameters specifying the leading dimensions of
Ai belonging to group g (lda≥max(1,m)).- ldb
Array of group_count parameters specifying the leading dimensions of
Bi 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_countintegers. Array element with indexgspecifies 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.