FLA_Her2k_external.c File Reference

(r12600)

Functions
FLA_Error	FLA_Her2k_external (FLA_Uplo uplo, FLA_Trans trans, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C)

---

Function Documentation

FLA_Error FLA_Her2k_external	(	FLA_Uplo	uplo,
		FLA_Trans	trans,
		FLA_Obj	alpha,
		FLA_Obj	A,
		FLA_Obj	B,
		FLA_Obj	beta,
		FLA_Obj	C
	)

References bl1_cher2k(), bl1_dsyr2k(), bl1_ssyr2k(), bl1_zher2k(), FLA_Check_error_level(), FLA_Her2k_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_Her2k(), FLA_Her2k_lh_task(), FLA_Her2k_ln_task(), FLA_Her2k_task(), FLA_Her2k_uh_task(), FLA_Her2k_un_task(), FLA_Tridiag_UT_l_blf_var3(), and FLA_Tridiag_UT_l_blk_var3().

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

  if ( FLA_Check_error_level() == FLA_FULL_ERROR_CHECKING ) 
    FLA_Her2k_check( uplo, trans, alpha, A, B, beta, C );

  if ( FLA_Obj_has_zero_dim( C ) ) return FLA_SUCCESS;

  if ( FLA_Obj_has_zero_dim( A ) || FLA_Obj_has_zero_dim( B ) )
  {
    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 );

  rs_B     = FLA_Obj_row_stride( B );
  cs_B     = FLA_Obj_col_stride( B );

  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_AB = n_A;
  else
    k_AB = 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_B     = ( float * ) FLA_FLOAT_PTR( B );
    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_ssyr2k( blis_uplo,
                blis_trans,
                m_C,
                k_AB,
                buff_alpha,
                buff_A, rs_A, cs_A,
                buff_B, rs_B, cs_B,
                buff_beta,
                buff_C, rs_C, cs_C );

    break;
  }

  case FLA_DOUBLE:
  {
    double *buff_A     = ( double * ) FLA_DOUBLE_PTR( A );
    double *buff_B     = ( double * ) FLA_DOUBLE_PTR( B );
    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_dsyr2k( blis_uplo,
                blis_trans,
                m_C,
                k_AB,
                buff_alpha,
                buff_A, rs_A, cs_A,
                buff_B, rs_B, cs_B,
                buff_beta,
                buff_C, rs_C, cs_C );

    break;
  }

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

    bl1_cher2k( blis_uplo,
                blis_trans,
                m_C,
                k_AB,
                buff_alpha,
                buff_A, rs_A, cs_A,
                buff_B, rs_B, cs_B,
                buff_beta,
                buff_C, rs_C, cs_C );

    break;
  }

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

    bl1_zher2k( blis_uplo,
                blis_trans,
                m_C,
                k_AB,
                buff_alpha,
                buff_A, rs_A, cs_A,
                buff_B, rs_B, cs_B,
                buff_beta,
                buff_C, rs_C, cs_C );

    break;
  }

  }
 
  return FLA_SUCCESS;
}