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trtri_scratchpad_size
Computes size of scratchpad memory required for trtri (USM Version) function. This routine belongs to the oneapi::mkl::lapack namespace.
Description
This routine computes the number of elements of type T the scratchpad memory to be passed to the trtri (USM version) function must be able to hold.
API
Syntax
 namespace oneapi::mkl::lapack {
   template<typename T>
   int64_t trtri_scratchpad_size(sycl::queue &queue,
   mkl::uplo uplo,
   mkl::diag diag,
   int64_t n,
   int64_t lda)
} 
    
   Input Parameters
- queue
 -  
     
Device queue where calculations by the trtri (buffer or USM version) function will be performed.
 - uplo
 -  
     
Indicates whether A is upper or lower triangular:
If uplo = uplo::upper, then A is upper triangular.
If uplo = uplo::lower, then A is lower triangular.
 - diag
 -  
     
If diag = diag::nonunit, then A is not a unit triangular matrix.
If diag = diag::unit, then A is unit triangular: diagonal elements of A are assumed to be 1 and not referenced in the array a.
 - n
 -  
     
The order of the matrix A (n ≥ 0).
 - lda
 -  
     
The leading dimension of a; lda ≥ max(1, n).
 
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 trtri (buffer or USM version) function must be able to hold.