FLA_Hemvc_external.c File Reference

(r12600)

Functions
FLA_Error	FLA_Hemvc_external (FLA_Uplo uplo, FLA_Conj conja, FLA_Obj alpha, FLA_Obj A, FLA_Obj x, FLA_Obj beta, FLA_Obj y)

---

Function Documentation

FLA_Error FLA_Hemvc_external	(	FLA_Uplo	uplo,
		FLA_Conj	conja,
		FLA_Obj	alpha,
		FLA_Obj	A,
		FLA_Obj	x,
		FLA_Obj	beta,
		FLA_Obj	y
	)

References bl1_chemv(), bl1_dsymv(), bl1_ssymv(), bl1_zhemv(), FLA_Check_error_level(), FLA_Hemvc_check(), FLA_Obj_col_stride(), FLA_Obj_datatype(), FLA_Obj_has_zero_dim(), FLA_Obj_length(), FLA_Obj_row_stride(), FLA_Obj_vector_inc(), FLA_Param_map_flame_to_blis_conj(), and FLA_Param_map_flame_to_blis_uplo().

Referenced by FLA_Eig_gest_il_unb_var1(), FLA_Eig_gest_il_unb_var2(), FLA_Eig_gest_iu_unb_var1(), FLA_Eig_gest_iu_unb_var2(), FLA_Eig_gest_nu_unb_var1(), FLA_Eig_gest_nu_unb_var2(), FLA_Hemm_rl_unb_var10(), FLA_Hemm_rl_unb_var9(), FLA_Hemm_ru_unb_var10(), FLA_Hemm_ru_unb_var9(), and FLA_Hemvc().

{
  FLA_Datatype datatype;
  int          m_A;
  int          rs_A, cs_A;
  int          inc_x;
  int          inc_y;
  uplo1_t       blis_uplo;
  conj1_t       blis_conja;

  if ( FLA_Check_error_level() == FLA_FULL_ERROR_CHECKING ) 
    FLA_Hemvc_check( uplo, conja, alpha, A, x, beta, y );

  if ( FLA_Obj_has_zero_dim( A ) ) return FLA_SUCCESS;

  datatype = FLA_Obj_datatype( A );

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

  inc_x    = FLA_Obj_vector_inc( x );
  inc_y    = FLA_Obj_vector_inc( y );

  FLA_Param_map_flame_to_blis_uplo( uplo, &blis_uplo );
  FLA_Param_map_flame_to_blis_conj( conja, &blis_conja );


  switch( datatype ){

  case FLA_FLOAT:
  {
    float *buff_A     = ( float * ) FLA_FLOAT_PTR( A );
    float *buff_x     = ( float * ) FLA_FLOAT_PTR( x );
    float *buff_y     = ( float * ) FLA_FLOAT_PTR( y );
    float *buff_alpha = ( float * ) FLA_FLOAT_PTR( alpha );
    float *buff_beta  = ( float * ) FLA_FLOAT_PTR( beta );

    bl1_ssymv( blis_uplo,
               m_A,
               buff_alpha,
               buff_A, rs_A, cs_A, 
               buff_x, inc_x,
               buff_beta,
               buff_y, inc_y );

    break;
  }

  case FLA_DOUBLE:
  {
    double *buff_A     = ( double * ) FLA_DOUBLE_PTR( A );
    double *buff_x     = ( double * ) FLA_DOUBLE_PTR( x );
    double *buff_y     = ( double * ) FLA_DOUBLE_PTR( y );
    double *buff_alpha = ( double * ) FLA_DOUBLE_PTR( alpha );
    double *buff_beta  = ( double * ) FLA_DOUBLE_PTR( beta );

    bl1_dsymv( blis_uplo,
               m_A,
               buff_alpha,
               buff_A, rs_A, cs_A, 
               buff_x, inc_x,
               buff_beta,
               buff_y, inc_y );

    break;
  }

  case FLA_COMPLEX:
  {
    scomplex *buff_A     = ( scomplex * ) FLA_COMPLEX_PTR( A );
    scomplex *buff_x     = ( scomplex * ) FLA_COMPLEX_PTR( x );
    scomplex *buff_y     = ( scomplex * ) FLA_COMPLEX_PTR( y );
    scomplex *buff_alpha = ( scomplex * ) FLA_COMPLEX_PTR( alpha );
    scomplex *buff_beta  = ( scomplex * ) FLA_COMPLEX_PTR( beta );

    bl1_chemv( blis_uplo,
               blis_conja,
               m_A,
               buff_alpha,
               buff_A, rs_A, cs_A, 
               buff_x, inc_x,
               buff_beta,
               buff_y, inc_y );

    break;
  }

  case FLA_DOUBLE_COMPLEX:
  {
    dcomplex *buff_A     = ( dcomplex * ) FLA_DOUBLE_COMPLEX_PTR( A );
    dcomplex *buff_x     = ( dcomplex * ) FLA_DOUBLE_COMPLEX_PTR( x );
    dcomplex *buff_y     = ( dcomplex * ) FLA_DOUBLE_COMPLEX_PTR( y );
    dcomplex *buff_alpha = ( dcomplex * ) FLA_DOUBLE_COMPLEX_PTR( alpha );
    dcomplex *buff_beta  = ( dcomplex * ) FLA_DOUBLE_COMPLEX_PTR( beta );

    bl1_zhemv( blis_uplo,
               blis_conja,
               m_A,
               buff_alpha,
               buff_A, rs_A, cs_A, 
               buff_x, inc_x,
               buff_beta,
               buff_y, inc_y );

    break;
  }

  }

  return FLA_SUCCESS;
}