geinv_batch_scratchpad_size (Group Version)#
Computes the size of scratchpad memory required for the
geinv_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 geinv_batch (Group Version) function must be able to hold.
API#
Syntax#
namespace oneapi::mkl::lapack {
int64_t geinv_batch_scratchpad_size(sycl::queue &queue,
int64_t *n,
int64_t *lda,
int64_t group_count,
int64_t *group_sizes)
}
This function supports the following precisions and devices:
T
Devices supported
float
CPU and GPU
double
CPU and GPU
std::complex<float>
CPU and GPU
std::complex<double>
CPU and GPU
Input Parameters#
- queue
Device queue where calculations will be performed.
- n
Array of
group_count
parameters ng specifying the order of the matrices belonging to groupg
.- lda
Array of
group_count
parameterslda
g specifying the leading dimension of the matrices belonging to groupg
.- 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 of the groups of parametersg
. So the total number of problems to solve,batch_size
, is the 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 the info() method of the exception object. |
Return Values#
The number of elements of type T
the scratchpad memory to be
passed to the geinv_batch (Group Version) function must be
able to hold.