Visible to Intel only — GUID: GUID-B435C32A-C8A7-43A7-95A1-D7253D26B5BB
Visible to Intel only — GUID: GUID-B435C32A-C8A7-43A7-95A1-D7253D26B5BB
potrf_batch_scratchpad_size (Strided Version)
Computes size of scratchpad memory required for potrf_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 potrf_batch (Strided Version) function must be able to hold.
API
Syntax
namespace oneapi::mkl::lapack { std::int64_t potrf_batch_scratchpad_size(sycl::queue &queue, mkl::uplo uplo, std::int64_t n, std::int64_t lda, std::int64_t stride_a, std::int64_t batch_size) }
Input Parameters
- queue
-
Device queue where calculations will be performed.
- uplo
-
Indicates whether the upper or lower triangular part of Ai is stored and how Ai is factored:
If uplo = mkl::uplo::upper, the array a stores the upper triangular parts of the matrices Ai.
If uplo = mkl::uplo::lower, the array a stores the lower triangular parts of the matrices Ai.
- n
-
Specifies the order of the matrices Ai, (0 ≤ n).
- lda
-
The leading dimension of Ai.
- stride_a
-
The stride between the beginnings of matrices Ai inside the batch.
- 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 potrf_batch (Strided Version) function must be able to hold.