FLA_LU_nopiv_opt_var2.c File Reference

(r)

Functions
FLA_Error	FLA_LU_nopiv_opt_var2 (FLA_Obj A)
FLA_Error	FLA_LU_nopiv_ops_var2 (int m_A, int n_A, float *buff_A, int rs_A, int cs_A)
FLA_Error	FLA_LU_nopiv_opd_var2 (int m_A, int n_A, double *buff_A, int rs_A, int cs_A)
FLA_Error	FLA_LU_nopiv_opc_var2 (int m_A, int n_A, scomplex *buff_A, int rs_A, int cs_A)
FLA_Error	FLA_LU_nopiv_opz_var2 (int m_A, int n_A, dcomplex *buff_A, int rs_A, int cs_A)

---

Function Documentation

FLA_Error FLA_LU_nopiv_opc_var2	(	int	m_A,
		int	n_A,
		scomplex *	buff_A,
		int	rs_A,
		int	cs_A
	)

References bli_cdots(), bli_cgemv(), bli_ctrsm(), bli_ctrsv(), BLIS_NO_CONJUGATE, BLIS_NO_TRANSPOSE, BLIS_NONUNIT_DIAG, BLIS_RIGHT, BLIS_TRANSPOSE, BLIS_UPPER_TRIANGULAR, FLA_MINUS_ONE, and FLA_ONE.

Referenced by FLA_LU_nopiv_opt_var2().

{
  scomplex* buff_1  = FLA_COMPLEX_PTR( FLA_ONE );
  scomplex* buff_m1 = FLA_COMPLEX_PTR( FLA_MINUS_ONE );
  int       min_m_n = min( m_A, n_A );
  int       i;

  for ( i = 0; i < min_m_n; ++i )
  {
    scomplex* A00       = buff_A + (0  )*cs_A + (0  )*rs_A;
    scomplex* a10t      = buff_A + (0  )*cs_A + (i  )*rs_A;
    scomplex* a01       = buff_A + (i  )*cs_A + (0  )*rs_A;
    scomplex* alpha11   = buff_A + (i  )*cs_A + (i  )*rs_A;
    scomplex* A02       = buff_A + (i+1)*cs_A + (0  )*rs_A;
    scomplex* a12t      = buff_A + (i+1)*cs_A + (i  )*rs_A;

    int       n_ahead   = n_A - i - 1;
    int       mn_behind = i;

    /*------------------------------------------------------------*/

    // FLA_Trsv_external( FLA_UPPER_TRIANGULAR, FLA_TRANSPOSE, FLA_NONUNIT_DIAG, A00, a10t );
    bli_ctrsv( BLIS_UPPER_TRIANGULAR,
               BLIS_TRANSPOSE,
               BLIS_NONUNIT_DIAG,
               mn_behind,
               A00, rs_A, cs_A,
               a10t, cs_A );

    // FLA_Dots_external( FLA_MINUS_ONE, a10t, a01, FLA_ONE, alpha11 );
    bli_cdots( BLIS_NO_CONJUGATE,
               mn_behind,
               buff_m1,
               a10t, cs_A,
               a01, rs_A,
               buff_1,
               alpha11 );

    // FLA_Gemv_external( FLA_TRANSPOSE, FLA_MINUS_ONE, A02, a10t, FLA_ONE, a12t );
    bli_cgemv( BLIS_TRANSPOSE,
               BLIS_NO_CONJUGATE,
               mn_behind,
               n_ahead,
               buff_m1,
               A02, rs_A, cs_A,
               a10t, cs_A,
               buff_1,
               a12t, cs_A );

    /*------------------------------------------------------------*/

  }

  if ( m_A > n_A )
  {
    scomplex* ATL = buff_A;
    scomplex* ABL = buff_A + n_A*rs_A;

    // FLA_Trsm_external( FLA_RIGHT, FLA_UPPER_TRIANGULAR,
    //                    FLA_NO_TRANSPOSE, FLA_NONUNIT_DIAG,
    //                    FLA_ONE, ATL, ABL );
    bli_ctrsm( BLIS_RIGHT,
               BLIS_UPPER_TRIANGULAR,
               BLIS_NO_TRANSPOSE,
               BLIS_NONUNIT_DIAG,
               m_A - n_A,
               n_A,
               buff_1,
               ATL, rs_A, cs_A,
               ABL, rs_A, cs_A );
  }

  return FLA_SUCCESS;
}

FLA_Error FLA_LU_nopiv_opd_var2	(	int	m_A,
		int	n_A,
		double *	buff_A,
		int	rs_A,
		int	cs_A
	)

References bli_ddots(), bli_dgemv(), bli_dtrsm(), bli_dtrsv(), BLIS_NO_CONJUGATE, BLIS_NO_TRANSPOSE, BLIS_NONUNIT_DIAG, BLIS_RIGHT, BLIS_TRANSPOSE, BLIS_UPPER_TRIANGULAR, FLA_MINUS_ONE, and FLA_ONE.

Referenced by FLA_LU_nopiv_opt_var2().

{
  double*   buff_1  = FLA_DOUBLE_PTR( FLA_ONE );
  double*   buff_m1 = FLA_DOUBLE_PTR( FLA_MINUS_ONE );
  int       min_m_n = min( m_A, n_A );
  int       i;

  for ( i = 0; i < min_m_n; ++i )
  {
    double*   A00       = buff_A + (0  )*cs_A + (0  )*rs_A;
    double*   a10t      = buff_A + (0  )*cs_A + (i  )*rs_A;
    double*   a01       = buff_A + (i  )*cs_A + (0  )*rs_A;
    double*   alpha11   = buff_A + (i  )*cs_A + (i  )*rs_A;
    double*   A02       = buff_A + (i+1)*cs_A + (0  )*rs_A;
    double*   a12t      = buff_A + (i+1)*cs_A + (i  )*rs_A;

    int       n_ahead   = n_A - i - 1;
    int       mn_behind = i;

    /*------------------------------------------------------------*/

    // FLA_Trsv_external( FLA_UPPER_TRIANGULAR, FLA_TRANSPOSE, FLA_NONUNIT_DIAG, A00, a10t );
    bli_dtrsv( BLIS_UPPER_TRIANGULAR,
               BLIS_TRANSPOSE,
               BLIS_NONUNIT_DIAG,
               mn_behind,
               A00, rs_A, cs_A,
               a10t, cs_A );

    // FLA_Dots_external( FLA_MINUS_ONE, a10t, a01, FLA_ONE, alpha11 );
    bli_ddots( BLIS_NO_CONJUGATE,
               mn_behind,
               buff_m1,
               a10t, cs_A,
               a01, rs_A,
               buff_1,
               alpha11 );

    // FLA_Gemv_external( FLA_TRANSPOSE, FLA_MINUS_ONE, A02, a10t, FLA_ONE, a12t );
    bli_dgemv( BLIS_TRANSPOSE,
               BLIS_NO_CONJUGATE,
               mn_behind,
               n_ahead,
               buff_m1,
               A02, rs_A, cs_A,
               a10t, cs_A,
               buff_1,
               a12t, cs_A );

    /*------------------------------------------------------------*/

  }

  if ( m_A > n_A )
  {
    double*   ATL = buff_A;
    double*   ABL = buff_A + n_A*rs_A;

    // FLA_Trsm_external( FLA_RIGHT, FLA_UPPER_TRIANGULAR,
    //                    FLA_NO_TRANSPOSE, FLA_NONUNIT_DIAG,
    //                    FLA_ONE, ATL, ABL );
    bli_dtrsm( BLIS_RIGHT,
               BLIS_UPPER_TRIANGULAR,
               BLIS_NO_TRANSPOSE,
               BLIS_NONUNIT_DIAG,
               m_A - n_A,
               n_A,
               buff_1,
               ATL, rs_A, cs_A,
               ABL, rs_A, cs_A );
  }

  return FLA_SUCCESS;
}

FLA_Error FLA_LU_nopiv_ops_var2	(	int	m_A,
		int	n_A,
		float *	buff_A,
		int	rs_A,
		int	cs_A
	)

References bli_sdots(), bli_sgemv(), bli_strsm(), bli_strsv(), BLIS_NO_CONJUGATE, BLIS_NO_TRANSPOSE, BLIS_NONUNIT_DIAG, BLIS_RIGHT, BLIS_TRANSPOSE, BLIS_UPPER_TRIANGULAR, FLA_MINUS_ONE, and FLA_ONE.

Referenced by FLA_LU_nopiv_opt_var2().

{
  float*    buff_1  = FLA_FLOAT_PTR( FLA_ONE );
  float*    buff_m1 = FLA_FLOAT_PTR( FLA_MINUS_ONE );
  int       min_m_n = min( m_A, n_A );
  int       i;

  for ( i = 0; i < min_m_n; ++i )
  {
    float*    A00       = buff_A + (0  )*cs_A + (0  )*rs_A;
    float*    a10t      = buff_A + (0  )*cs_A + (i  )*rs_A;
    float*    a01       = buff_A + (i  )*cs_A + (0  )*rs_A;
    float*    alpha11   = buff_A + (i  )*cs_A + (i  )*rs_A;
    float*    A02       = buff_A + (i+1)*cs_A + (0  )*rs_A;
    float*    a12t      = buff_A + (i+1)*cs_A + (i  )*rs_A;

    int       n_ahead   = n_A - i - 1;
    int       mn_behind = i;

    /*------------------------------------------------------------*/

    // FLA_Trsv_external( FLA_UPPER_TRIANGULAR, FLA_TRANSPOSE, FLA_NONUNIT_DIAG, A00, a10t );
    bli_strsv( BLIS_UPPER_TRIANGULAR,
               BLIS_TRANSPOSE,
               BLIS_NONUNIT_DIAG,
               mn_behind,
               A00, rs_A, cs_A,
               a10t, cs_A );

    // FLA_Dots_external( FLA_MINUS_ONE, a10t, a01, FLA_ONE, alpha11 );
    bli_sdots( BLIS_NO_CONJUGATE,
               mn_behind,
               buff_m1,
               a10t, cs_A,
               a01, rs_A,
               buff_1,
               alpha11 );

    // FLA_Gemv_external( FLA_TRANSPOSE, FLA_MINUS_ONE, A02, a10t, FLA_ONE, a12t );
    bli_sgemv( BLIS_TRANSPOSE,
               BLIS_NO_CONJUGATE,
               mn_behind,
               n_ahead,
               buff_m1,
               A02, rs_A, cs_A,
               a10t, cs_A,
               buff_1,
               a12t, cs_A );

    /*------------------------------------------------------------*/

  }

  if ( m_A > n_A )
  {
    float*    ATL = buff_A;
    float*    ABL = buff_A + n_A*rs_A;

    // FLA_Trsm_external( FLA_RIGHT, FLA_UPPER_TRIANGULAR,
    //                    FLA_NO_TRANSPOSE, FLA_NONUNIT_DIAG,
    //                    FLA_ONE, ATL, ABL );
    bli_strsm( BLIS_RIGHT,
               BLIS_UPPER_TRIANGULAR,
               BLIS_NO_TRANSPOSE,
               BLIS_NONUNIT_DIAG,
               m_A - n_A,
               n_A,
               buff_1,
               ATL, rs_A, cs_A,
               ABL, rs_A, cs_A );
  }

  return FLA_SUCCESS;
}

FLA_Error FLA_LU_nopiv_opt_var2

(

FLA_Obj

A

)

References FLA_LU_nopiv_opc_var2(), FLA_LU_nopiv_opd_var2(), FLA_LU_nopiv_ops_var2(), FLA_LU_nopiv_opz_var2(), FLA_Obj_col_stride(), FLA_Obj_datatype(), FLA_Obj_length(), FLA_Obj_row_stride(), and FLA_Obj_width().

Referenced by FLA_LU_nopiv_internal().

{
  FLA_Datatype datatype;
  int          m_A, n_A;
  int          rs_A, cs_A;

  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 );
  

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

      FLA_LU_nopiv_ops_var2( m_A,
                             n_A,
                             buff_A, rs_A, cs_A );

      break;
    }

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

      FLA_LU_nopiv_opd_var2( m_A,
                             n_A,
                             buff_A, rs_A, cs_A );

      break;
    }

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

      FLA_LU_nopiv_opc_var2( m_A,
                             n_A,
                             buff_A, rs_A, cs_A );

      break;
    }

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

      FLA_LU_nopiv_opz_var2( m_A,
                             n_A,
                             buff_A, rs_A, cs_A );

      break;
    }
  }

  return FLA_SUCCESS;
}

FLA_Error FLA_LU_nopiv_opz_var2	(	int	m_A,
		int	n_A,
		dcomplex *	buff_A,
		int	rs_A,
		int	cs_A
	)

References bli_zdots(), bli_zgemv(), bli_ztrsm(), bli_ztrsv(), BLIS_NO_CONJUGATE, BLIS_NO_TRANSPOSE, BLIS_NONUNIT_DIAG, BLIS_RIGHT, BLIS_TRANSPOSE, BLIS_UPPER_TRIANGULAR, FLA_MINUS_ONE, and FLA_ONE.

Referenced by FLA_LU_nopiv_opt_var2().

{
  dcomplex* buff_1  = FLA_DOUBLE_COMPLEX_PTR( FLA_ONE );
  dcomplex* buff_m1 = FLA_DOUBLE_COMPLEX_PTR( FLA_MINUS_ONE );
  int       min_m_n = min( m_A, n_A );
  int       i;

  for ( i = 0; i < min_m_n; ++i )
  {
    dcomplex* A00       = buff_A + (0  )*cs_A + (0  )*rs_A;
    dcomplex* a10t      = buff_A + (0  )*cs_A + (i  )*rs_A;
    dcomplex* a01       = buff_A + (i  )*cs_A + (0  )*rs_A;
    dcomplex* alpha11   = buff_A + (i  )*cs_A + (i  )*rs_A;
    dcomplex* A02       = buff_A + (i+1)*cs_A + (0  )*rs_A;
    dcomplex* a12t      = buff_A + (i+1)*cs_A + (i  )*rs_A;

    int       n_ahead   = n_A - i - 1;
    int       mn_behind = i;

    /*------------------------------------------------------------*/

    // FLA_Trsv_external( FLA_UPPER_TRIANGULAR, FLA_TRANSPOSE, FLA_NONUNIT_DIAG, A00, a10t );
    bli_ztrsv( BLIS_UPPER_TRIANGULAR,
               BLIS_TRANSPOSE,
               BLIS_NONUNIT_DIAG,
               mn_behind,
               A00, rs_A, cs_A,
               a10t, cs_A );

    // FLA_Dots_external( FLA_MINUS_ONE, a10t, a01, FLA_ONE, alpha11 );
    bli_zdots( BLIS_NO_CONJUGATE,
               mn_behind,
               buff_m1,
               a10t, cs_A,
               a01, rs_A,
               buff_1,
               alpha11 );

    // FLA_Gemv_external( FLA_TRANSPOSE, FLA_MINUS_ONE, A02, a10t, FLA_ONE, a12t );
    bli_zgemv( BLIS_TRANSPOSE,
               BLIS_NO_CONJUGATE,
               mn_behind,
               n_ahead,
               buff_m1,
               A02, rs_A, cs_A,
               a10t, cs_A,
               buff_1,
               a12t, cs_A );

    /*------------------------------------------------------------*/

  }

  if ( m_A > n_A )
  {
    dcomplex* ATL = buff_A;
    dcomplex* ABL = buff_A + n_A*rs_A;

    // FLA_Trsm_external( FLA_RIGHT, FLA_UPPER_TRIANGULAR,
    //                    FLA_NO_TRANSPOSE, FLA_NONUNIT_DIAG,
    //                    FLA_ONE, ATL, ABL );
    bli_ztrsm( BLIS_RIGHT,
               BLIS_UPPER_TRIANGULAR,
               BLIS_NO_TRANSPOSE,
               BLIS_NONUNIT_DIAG,
               m_A - n_A,
               n_A,
               buff_1,
               ATL, rs_A, cs_A,
               ABL, rs_A, cs_A );
  }

  return FLA_SUCCESS;
}