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potrs_scratchpad_size
Computes size of scratchpad memory required for potrs (USM 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 potrs (buffer or USM version) function must be able to hold.
API
Syntax
namespace oneapi::mkl::lapack {
   template<typename T>
   std::int64_t potrs_scratchpad_size(
   sycl::queue &queue,
   mkl::uplo uplo,
   std::int64_t n,
   std::int64_t nrhs,
   std::int64_t lda,
   std::int64_t ldb)
} 
    
   Input Parameters
- queue
 -  
     
Device queue where calculations by the potrs (buffer or USM version) function will be performed.
 - uplo
 -  
     
Indicates how the input matrix has been factored:
If uplo=mkl::uplo::upper, the upper triangle U of A is stored, where A = UT*U for real data, A = UH*U for complex data.
If uplo=mkl::uplo::lower, the upper triangle L of A is stored, where A = L*LT for real data, A = L*LH for complex data.
 - n
 -  
     
The order of matrix A (0 ≤ n).
 - nrhs
 -  
     
The number of right-hand sides (0 ≤ nrhs).
 - lda
 -  
     
The leading dimension of A.
 - ldb
 -  
     
The leading dimension of B.
 
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 potrs (buffer or USM version) function must be able to hold.