hipblassgetribatched Interface Reference

hipblassgetribatched Interface Reference#

HIPFORT API Reference: hipfort_hipblas::hipblassgetribatched Interface Reference
Public Member Functions | List of all members
hipfort_hipblas::hipblassgetribatched Interface Reference

SOLVER API. More...

Public Member Functions

integer(kind(hipblas_status_success)) function hipblassgetribatched_ (handle, n, a, lda, ipiv, c, ldc, myinfo, batchcount)
 

Detailed Description

SOLVER API.

The getriBatched functions computes the inverse \(C_i = A_i^{-1}\) of a batch of general n-by-n matrices \(A_i\).

The inverse is computed by solving the linear system

\[ A_i C_i = I \]

where I is the identity matrix and \(A_i\) is factorized as \(A_i = P_i L_i U_i\), as given by hipblasSgetrfBatched "getrfBatched".

  • Supported precisions in rocSOLVER : s, d, c, and z.
  • Supported precisions in cuBLAS : s, d, c, and z.
Parameters
[in]handle- hipblasHandle_t.
[in]n- int. n >= 0. The number of rows and columns of all matrices A_i in the batch.
[in]A- array of pointers to type. Each pointer points to an array on the GPU of dimension lda*n. The factors L_i and U_i of the factorization A_i = P_i*L_i*U_i returned by hipblasSgetrfBatched "getrfBatched".
[in]lda- int. lda >= n. Specifies the leading dimension of matrices A_i.
[in]ipiv- pointer to int. Array on the GPU (the size depends on the value of strideP). The pivot indices returned by hipblasSgetrfBatched "getrfBatched". ipiv can be passed in as a nullptr. This will assume that getrfBatched was called without partial pivoting.
[out]C- array of pointers to type. Each pointer points to an array on the GPU of dimension ldc*n. If info[i] = 0, the inverse of matrices A_i. Otherwise, undefined.
[in]ldc- int. ldc >= n. Specifies the leading dimension of C_i.
[out]myInfo- pointer to int. Array of batchCount integers on the GPU.
  • If info[i] = 0, successful exit for inversion of A_i.
  • If info[i] = j > 0, U_i is singular. U_i[j,j] is the first zero pivot.
[in]batchCount- int. batchCount >= 0. Number of matrices in the batch.

Member Function/Subroutine Documentation

◆ hipblassgetribatched_()

integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblassgetribatched::hipblassgetribatched_ ( type(c_ptr), value  handle,
integer(c_int), value  n,
type(c_ptr), value  a,
integer(c_int), value  lda,
type(c_ptr), value  ipiv,
type(c_ptr), value  c,
integer(c_int), value  ldc,
type(c_ptr), value  myinfo,
integer(c_int), value  batchcount 
)
The documentation for this interface was generated from the following file: