getri_batch_scratchpad_size (Strided Version)

Computes size of scratchpad memory required for getri_batch (Out-of-place, 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 getri_batch (Out-of-place, Strided Version) function should be able to hold.

API

Syntax

namespace oneapi::mkl::lapack {
  std::int64_t getri_batch_scratchpad_size(sycl::queue &queue,
  std::int64_t n,
  std::int64_t lda,
  std::int64_t stride_a,
  std::int64_t stride_ipiv,
  std::int64_t ldainv,
  std::int64_t stride_ainv,
  std::int64_t batch_size)
}

Input Parameters

queue

Device queue where calculations will be performed.

n

The order of the matrices Ai (0 n).

lda

The leading dimension of Ai (lda n).

stride_a

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

stride_ipiv

The stride between the beginnings of arrays ipivi inside the array ipiv.

ldainv

The leading dimension of Ainvi (n ldainv).

stride_ainv

The stride between the beginnings of matrices Ainvi inside the batch array ainv.

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 getri_batch (Out-of-place, Strided Version) function should be able to hold.