gels_batch_scratchpad_size (Strided Version)

Computes size of scratchpad memory required for gels_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 gels_batch (Strided Version) function must be able to hold.

API

Syntax

 namespace oneapi::mkl::lapack {
   std::int64_t gels_batch_scratchpad_size(sycl::queue &queue,
   mkl::transpose trans,
   std::int64_t m,
   std::int64_t n,
   std::int64_t nrhs,
   std::int64_t lda,
   std::int64_t stride_a,
   std::int64_t ldb,
   std::int64_t stride_b,
   std::int64_t batch_size)
}

Input Parameters

queue

Device queue where calculations will be performed.

trans

Operation assumed to be done on input matrices Ai. Only trans = mkl::transpose::nontrans case is currently supported.

m

The number of rows of the matrices Ai and Bi

n

The number of columns of the matrices Ai

nrhs

The number of right-hand sides: the number of columns in Bi

lda

The leading dimension of Ai

stride_a

The stride between the beginnings of matrices Ai inside the batch array a

ldb

The leading dimensions of Bi

stride_b

The stride between the beginnings of matrices Bi inside the batch array b.

batch_size

The number of problems in a batch.

Exceptions

Exception

Description

mkl::lapack::exception

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 gels_batch (Strided Version) function must be able to hold.