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gels_scratchpad_size
Computes size of the scratchpad memory required for the gels (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 gels (USM version) function must be able to hold.
API
Syntax
namespace oneapi::mkl::lapack {
   template<typename T>
   int64_t gels_scratchpad_size(sycl::queue &queue,
   mkl::transpose trans,
   int64_t m,
   int64_t n,
   int64_t nrhs,
   int64_t lda,
   int64_t ldb)
} 
    
   Input Parameters
- queue
 -  
     
Device queue where calculations by the gels (USM version) function will be performed.
 - trans
 -  
     
If trans=mkl::transpose::trans, the routine finds the minimum norm solution the underdetermined system AT*X``=``B.
If trans=mkl::transpose::conjtrans, the routine finds the minimum norm solution the underdetermined system AH*X``=``B.
If trans=mkl::transpose::nontrans, the routine solves the least squares problem minimize || B - A*X ||.
 - m
 -  
     
The number of rows in the matrix A (m ≥ 0).
 - n
 -  
     
The number of columns in the matrix A (n ≥ 0).
 - nrhs
 -  
     
The number of right hand sides, i.e. the columns of b (nrhs ≥ 0)
 - lda
 -  
     
The leading dimension of a (lda ≥ max(1,m)).
 - ldb
 -  
     
The leading dimension of b (ldb ≥ max(1, max(m,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 gels (USM version) function must be able to hold.