FLA_Trinv_blk_external.c File Reference

(r12600)

Functions
FLA_Error	FLA_Trinv_blk_external (FLA_Uplo uplo, FLA_Diag diag, FLA_Obj A)
FLA_Error	FLA_Trinv_ln_blk_ext (FLA_Obj A)
FLA_Error	FLA_Trinv_lu_blk_ext (FLA_Obj A)
FLA_Error	FLA_Trinv_un_blk_ext (FLA_Obj A)
FLA_Error	FLA_Trinv_uu_blk_ext (FLA_Obj A)

---

Function Documentation

FLA_Error FLA_Trinv_blk_external	(	FLA_Uplo	uplo,
		FLA_Diag	diag,
		FLA_Obj	A
	)

References F77_ctrtri(), F77_dtrtri(), F77_strtri(), F77_ztrtri(), FLA_Check_error_level(), FLA_Obj_col_stride(), FLA_Obj_datatype(), FLA_Obj_has_zero_dim(), FLA_Obj_length(), FLA_Param_map_flame_to_netlib_diag(), FLA_Param_map_flame_to_netlib_uplo(), and FLA_Trinv_check().

Referenced by FLA_SPDinv_blk_external(), FLA_Trinv_ln_blk_ext(), FLA_Trinv_lu_blk_ext(), FLA_Trinv_un_blk_ext(), and FLA_Trinv_uu_blk_ext().

{
  FLA_Error    r_val = FLA_SUCCESS;
#ifdef FLA_ENABLE_EXTERNAL_LAPACK_INTERFACES
  int          info;
  FLA_Datatype datatype;
  int          m_A, cs_A;
  char         blas_uplo;
  char         blas_diag;

  if ( FLA_Check_error_level() == FLA_FULL_ERROR_CHECKING )
    FLA_Trinv_check( uplo, diag, A );

  if ( FLA_Obj_has_zero_dim( A ) ) return FLA_SUCCESS;

  datatype = FLA_Obj_datatype( A );

  m_A      = FLA_Obj_length( A );
  cs_A     = FLA_Obj_col_stride( A );

  FLA_Param_map_flame_to_netlib_uplo( uplo, &blas_uplo );
  FLA_Param_map_flame_to_netlib_diag( diag, &blas_diag );


  switch( datatype ){

  case FLA_FLOAT:
  {
    float *buff_A = ( float * ) FLA_FLOAT_PTR( A );

    F77_strtri( &blas_uplo,
                &blas_diag,
                &m_A,
                buff_A, &cs_A,
                &info );

    break;
  }

  case FLA_DOUBLE:
  {
    double *buff_A = ( double * ) FLA_DOUBLE_PTR( A );

    F77_dtrtri( &blas_uplo,
                &blas_diag,
                &m_A,
                buff_A, &cs_A,
                &info );

    break;
  } 

  case FLA_COMPLEX:
  {
    scomplex *buff_A = ( scomplex * ) FLA_COMPLEX_PTR( A );

    F77_ctrtri( &blas_uplo,
                &blas_diag,
                &m_A,
                buff_A, &cs_A,
                &info );

    break;
  } 

  case FLA_DOUBLE_COMPLEX:
  {
    dcomplex *buff_A = ( dcomplex * ) FLA_DOUBLE_COMPLEX_PTR( A );

    F77_ztrtri( &blas_uplo,
                &blas_diag,
                &m_A,
                buff_A, &cs_A,
                &info );

    break;
  } 

  }

  // Convert to zero-based indexing, if an index was reported.
  if ( info > 0 ) r_val = info - 1;
  else            r_val = FLA_SUCCESS;

#else
  FLA_Check_error_code( FLA_EXTERNAL_LAPACK_NOT_IMPLEMENTED );
#endif

  return r_val;
}

FLA_Error FLA_Trinv_ln_blk_ext

(

FLA_Obj

A

)

References FLA_Trinv_blk_external().

Referenced by FLA_Trinv_ln().

{
  return FLA_Trinv_blk_external( FLA_LOWER_TRIANGULAR, FLA_NONUNIT_DIAG, A );
}

FLA_Error FLA_Trinv_lu_blk_ext

(

FLA_Obj

A

)

References FLA_Trinv_blk_external().

Referenced by FLA_Trinv_lu().

{
  return FLA_Trinv_blk_external( FLA_LOWER_TRIANGULAR, FLA_UNIT_DIAG, A );
}

FLA_Error FLA_Trinv_un_blk_ext

(

FLA_Obj

A

)

References FLA_Trinv_blk_external().

Referenced by FLA_Trinv_un().

{
  return FLA_Trinv_blk_external( FLA_UPPER_TRIANGULAR, FLA_NONUNIT_DIAG, A );
}

FLA_Error FLA_Trinv_uu_blk_ext

(

FLA_Obj

A

)

References FLA_Trinv_blk_external().

Referenced by FLA_Trinv_uu().

{
  return FLA_Trinv_blk_external( FLA_UPPER_TRIANGULAR, FLA_UNIT_DIAG, A );
}