FLA_Gemm_external.c File Reference

(r12600)

Functions
FLA_Error	FLA_Gemm_external (FLA_Trans transa, FLA_Trans transb, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C)

---

Function Documentation

FLA_Error FLA_Gemm_external	(	FLA_Trans	transa,
		FLA_Trans	transb,
		FLA_Obj	alpha,
		FLA_Obj	A,
		FLA_Obj	B,
		FLA_Obj	beta,
		FLA_Obj	C
	)

References bl1_cgemm(), bl1_dgemm(), bl1_sgemm(), bl1_zgemm(), FLA_Check_error_level(), FLA_Gemm_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(), and FLA_Scal_external().

Referenced by FLA_Bidiag_UT_u_blf_var4(), FLA_Bidiag_UT_u_blk_var4(), FLA_Bidiag_UT_u_blk_var5(), FLA_Gemm(), FLA_Gemm_cc_task(), FLA_Gemm_ch_task(), FLA_Gemm_cn_task(), FLA_Gemm_ct_task(), FLA_Gemm_hc_task(), FLA_Gemm_hh_task(), FLA_Gemm_hn_task(), FLA_Gemm_ht_task(), FLA_Gemm_nc_task(), FLA_Gemm_nh_task(), FLA_Gemm_nn_task(), FLA_Gemm_nt_task(), FLA_Gemm_task(), FLA_Gemm_tc_task(), FLA_Gemm_th_task(), FLA_Gemm_tn_task(), FLA_Gemm_tt_task(), FLA_Hess_UT_blf_var2(), FLA_Hess_UT_blf_var3(), FLA_Hess_UT_blf_var4(), FLA_Hess_UT_blk_var1(), FLA_Hess_UT_blk_var2(), FLA_Hess_UT_blk_var3(), FLA_Hess_UT_blk_var4(), FLA_Hess_UT_blk_var5(), FLA_LQ_UT_blk_var2(), FLA_QR_UT_blk_var2(), FLA_QR_UT_piv_blk_var2(), FLA_SA_FS_blk(), and FLA_SA_LU_blk().

{
  FLA_Datatype datatype;
  int          k_AB;
  int          m_A, n_A;
  int          m_C, n_C;
  int          rs_A, cs_A;
  int          rs_B, cs_B;
  int          rs_C, cs_C;
  trans1_t      blis_transa;
  trans1_t      blis_transb;

  if ( FLA_Check_error_level() == FLA_FULL_ERROR_CHECKING ) 
    FLA_Gemm_check( transa, transb, 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 );
  n_C      = FLA_Obj_width( C );
  rs_C     = FLA_Obj_row_stride( C );
  cs_C     = FLA_Obj_col_stride( C );

  if ( transa == FLA_NO_TRANSPOSE || transa == FLA_CONJ_NO_TRANSPOSE )
    k_AB = n_A;
  else
    k_AB = m_A;

  FLA_Param_map_flame_to_blis_trans( transa, &blis_transa );
  FLA_Param_map_flame_to_blis_trans( transb, &blis_transb );


  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_sgemm( blis_transa, 
               blis_transb,
               m_C,
               k_AB, 
               n_C, 
               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_dgemm( blis_transa, 
               blis_transb,
               m_C,
               k_AB, 
               n_C, 
               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 );
    scomplex *buff_beta  = ( scomplex * ) FLA_COMPLEX_PTR( beta );
                         
    bl1_cgemm( blis_transa, 
               blis_transb,
               m_C,
               k_AB, 
               n_C, 
               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 );
    dcomplex *buff_beta  = ( dcomplex * ) FLA_DOUBLE_COMPLEX_PTR( beta );

    bl1_zgemm( blis_transa, 
               blis_transb,
               m_C,
               k_AB, 
               n_C, 
               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;
}