FLA_Herk_external.c File Reference

(r12600)

Functions
FLA_Error	FLA_Herk_external (FLA_Uplo uplo, FLA_Trans trans, FLA_Obj alpha, FLA_Obj A, FLA_Obj beta, FLA_Obj C)

---

Function Documentation

FLA_Error FLA_Herk_external	(	FLA_Uplo	uplo,
		FLA_Trans	trans,
		FLA_Obj	alpha,
		FLA_Obj	A,
		FLA_Obj	beta,
		FLA_Obj	C
	)

References bl1_cherk(), bl1_dsyrk(), bl1_ssyrk(), bl1_zherk(), FLA_Check_error_level(), FLA_Herk_check(), FLA_Obj_col_stride(), FLA_Obj_datatype(), FLA_Obj_has_zero_dim(), FLA_Obj_length(), FLA_Obj_row_stride(), FLA_Obj_width(), FLA_Param_map_flame_to_blis_trans(), FLA_Param_map_flame_to_blis_uplo(), and FLA_Scal_external().

Referenced by FLA_Herk(), FLA_Herk_lh_task(), FLA_Herk_ln_task(), FLA_Herk_task(), FLA_Herk_uh_task(), FLA_Herk_un_task(), FLA_Random_spd_matrix(), and FLA_UDdate_UT_unb_var1().

{
  FLA_Datatype datatype;
  int          k_A;
  int          m_A, n_A;
  int          m_C;
  int          rs_A, cs_A;
  int          rs_C, cs_C;
  uplo1_t       blis_uplo; 
  trans1_t      blis_trans;

  if ( FLA_Check_error_level() == FLA_FULL_ERROR_CHECKING ) 
    FLA_Herk_check( uplo, trans, alpha, A, beta, C );
  
  if ( FLA_Obj_has_zero_dim( C ) ) return FLA_SUCCESS;

  if ( FLA_Obj_has_zero_dim( A ) )
  {
    FLA_Scal_external( beta, C );
    return FLA_SUCCESS;
  }

  datatype = FLA_Obj_datatype( A );

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

  m_C      = FLA_Obj_length( C );
  rs_C     = FLA_Obj_row_stride( C );
  cs_C     = FLA_Obj_col_stride( C );

  if ( trans == FLA_NO_TRANSPOSE )
    k_A = n_A;
  else
    k_A = m_A;

  FLA_Param_map_flame_to_blis_uplo( uplo, &blis_uplo );
  FLA_Param_map_flame_to_blis_trans( trans, &blis_trans );


  switch( datatype ){

  case FLA_FLOAT:
  {
    float *buff_A     = ( float * ) FLA_FLOAT_PTR( A );
    float *buff_C     = ( float * ) FLA_FLOAT_PTR( C );
    float *buff_alpha = ( float * ) FLA_FLOAT_PTR( alpha );
    float *buff_beta  = ( float * ) FLA_FLOAT_PTR( beta );

    bl1_ssyrk( blis_uplo,
               blis_trans,
               m_C,
               k_A,
               buff_alpha,
               buff_A, rs_A, cs_A,
               buff_beta,
               buff_C, rs_C, cs_C );

    break;
  }

  case FLA_DOUBLE:
  {
    double *buff_A     = ( double * ) FLA_DOUBLE_PTR( A );
    double *buff_C     = ( double * ) FLA_DOUBLE_PTR( C );
    double *buff_alpha = ( double * ) FLA_DOUBLE_PTR( alpha );
    double *buff_beta  = ( double * ) FLA_DOUBLE_PTR( beta );

    bl1_dsyrk( blis_uplo,
               blis_trans,
               m_C,
               k_A,
               buff_alpha,
               buff_A, rs_A, cs_A,
               buff_beta,
               buff_C, rs_C, cs_C );

    break;
  }

  case FLA_COMPLEX:
  {
    scomplex *buff_A     = ( scomplex * ) FLA_COMPLEX_PTR( A );
    scomplex *buff_C     = ( scomplex * ) FLA_COMPLEX_PTR( C );
    float    *buff_alpha = ( float    * ) FLA_FLOAT_PTR( alpha );
    float    *buff_beta  = ( float    * ) FLA_FLOAT_PTR( beta );

    bl1_cherk( blis_uplo,
               blis_trans,
               m_C,
               k_A,
               buff_alpha,
               buff_A, rs_A, cs_A,
               buff_beta,
               buff_C, rs_C, cs_C );

    break;
  }

  case FLA_DOUBLE_COMPLEX:
  {
    dcomplex *buff_A     = ( dcomplex * ) FLA_DOUBLE_COMPLEX_PTR( A );
    dcomplex *buff_C     = ( dcomplex * ) FLA_DOUBLE_COMPLEX_PTR( C );
    double   *buff_alpha = ( double   * ) FLA_DOUBLE_PTR( alpha );
    double   *buff_beta  = ( double   * ) FLA_DOUBLE_PTR( beta );

    bl1_zherk( blis_uplo,
               blis_trans,
               m_C,
               k_A,
               buff_alpha,
               buff_A, rs_A, cs_A,
               buff_beta,
               buff_C, rs_C, cs_C );

    break;
  }

  }
 
  return FLA_SUCCESS;
}