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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, (n ≥ 0).
 - lda
 -  
     
The leading dimension of Ai (lda ≥ max(1, n)).
 - stride_a
 -  
     
The stride between the beginnings of matrices Ai inside the batch (stride_a ≥ max(1, lda * n)).
 - batch_size
 -  
     
The number of problems in a batch (batch_size ≥ 0).
 
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.