FLA_Trinv_lu_opt_var4.c File Reference

(r)

Functions
FLA_Error	FLA_Trinv_lu_opt_var4 (FLA_Obj A)
FLA_Error	FLA_Trinv_lu_ops_var4 (int mn_A, float *buff_A, int rs_A, int cs_A)
FLA_Error	FLA_Trinv_lu_opd_var4 (int mn_A, double *buff_A, int rs_A, int cs_A)
FLA_Error	FLA_Trinv_lu_opc_var4 (int mn_A, scomplex *buff_A, int rs_A, int cs_A)
FLA_Error	FLA_Trinv_lu_opz_var4 (int mn_A, dcomplex *buff_A, int rs_A, int cs_A)

---

Function Documentation

FLA_Error FLA_Trinv_lu_opc_var4	(	int	mn_A,
		scomplex *	buff_A,
		int	rs_A,
		int	cs_A
	)

References bli_cger(), bli_cscalv(), bli_ctrmv(), bli_ctrsv(), BLIS_LOWER_TRIANGULAR, BLIS_NO_CONJUGATE, BLIS_NO_TRANSPOSE, BLIS_TRANSPOSE, BLIS_UNIT_DIAG, and FLA_MINUS_ONE.

Referenced by FLA_Trinv_lu_opt_var4().

{
  scomplex* buff_m1 = FLA_COMPLEX_PTR( FLA_MINUS_ONE );
  int       i;

  for ( i = 0; i < mn_A; ++i )
  {
    scomplex* A00       = buff_A + (0  )*cs_A + (0  )*rs_A;
    scomplex* a10t      = buff_A + (0  )*cs_A + (i  )*rs_A;
    scomplex* A20       = buff_A + (0  )*cs_A + (i+1)*rs_A;
    scomplex* a21       = buff_A + (i  )*cs_A + (i+1)*rs_A;
    scomplex* A22       = buff_A + (i+1)*cs_A + (i+1)*rs_A;

    int       mn_ahead  = mn_A - i - 1;
    int       mn_behind = i;

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

    // FLA_Scal_external( FLA_MINUS_ONE, a21 );
    // FLA_Trsv_external( FLA_LOWER_TRIANGULAR, FLA_NO_TRANSPOSE, FLA_UNIT_DIAG, A22, a21 );
    bli_cscalv( BLIS_NO_CONJUGATE,
                mn_ahead,
                buff_m1,
                a21, rs_A );
    bli_ctrsv( BLIS_LOWER_TRIANGULAR,
               BLIS_NO_TRANSPOSE,
               BLIS_UNIT_DIAG,
               mn_ahead,
               A22, rs_A, cs_A,
               a21, rs_A );

    // FLA_Ger_external( FLA_MINUS_ONE, a21, a10t, A20 );
    bli_cger( BLIS_NO_CONJUGATE,
              BLIS_NO_CONJUGATE,
              mn_ahead,
              mn_behind,
              buff_m1,
              a21, rs_A,
              a10t, cs_A,
              A20, rs_A, cs_A );

    // FLA_Trmv_external( FLA_LOWER_TRIANGULAR, FLA_TRANSPOSE, FLA_UNIT_DIAG, A00, a10t );
    bli_ctrmv( BLIS_LOWER_TRIANGULAR,
               BLIS_TRANSPOSE,
               BLIS_UNIT_DIAG,
               mn_behind,
               A00, rs_A, cs_A,
               a10t, cs_A );

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

  }

  return FLA_SUCCESS;
}

FLA_Error FLA_Trinv_lu_opd_var4	(	int	mn_A,
		double *	buff_A,
		int	rs_A,
		int	cs_A
	)

References bli_dger(), bli_dscalv(), bli_dtrmv(), bli_dtrsv(), BLIS_LOWER_TRIANGULAR, BLIS_NO_CONJUGATE, BLIS_NO_TRANSPOSE, BLIS_TRANSPOSE, BLIS_UNIT_DIAG, and FLA_MINUS_ONE.

Referenced by FLA_Trinv_lu_opt_var4().

{
  double*   buff_m1 = FLA_DOUBLE_PTR( FLA_MINUS_ONE );
  int       i;

  for ( i = 0; i < mn_A; ++i )
  {
    double*   A00       = buff_A + (0  )*cs_A + (0  )*rs_A;
    double*   a10t      = buff_A + (0  )*cs_A + (i  )*rs_A;
    double*   A20       = buff_A + (0  )*cs_A + (i+1)*rs_A;
    double*   a21       = buff_A + (i  )*cs_A + (i+1)*rs_A;
    double*   A22       = buff_A + (i+1)*cs_A + (i+1)*rs_A;

    int       mn_ahead  = mn_A - i - 1;
    int       mn_behind = i;

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

    // FLA_Scal_external( FLA_MINUS_ONE, a21 );
    // FLA_Trsv_external( FLA_LOWER_TRIANGULAR, FLA_NO_TRANSPOSE, FLA_UNIT_DIAG, A22, a21 );
    bli_dscalv( BLIS_NO_CONJUGATE,
                mn_ahead,
                buff_m1,
                a21, rs_A );
    bli_dtrsv( BLIS_LOWER_TRIANGULAR,
               BLIS_NO_TRANSPOSE,
               BLIS_UNIT_DIAG,
               mn_ahead,
               A22, rs_A, cs_A,
               a21, rs_A );

    // FLA_Ger_external( FLA_MINUS_ONE, a21, a10t, A20 );
    bli_dger( BLIS_NO_CONJUGATE,
              BLIS_NO_CONJUGATE,
              mn_ahead,
              mn_behind,
              buff_m1,
              a21, rs_A,
              a10t, cs_A,
              A20, rs_A, cs_A );

    // FLA_Trmv_external( FLA_LOWER_TRIANGULAR, FLA_TRANSPOSE, FLA_UNIT_DIAG, A00, a10t );
    bli_dtrmv( BLIS_LOWER_TRIANGULAR,
               BLIS_TRANSPOSE,
               BLIS_UNIT_DIAG,
               mn_behind,
               A00, rs_A, cs_A,
               a10t, cs_A );

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

  }

  return FLA_SUCCESS;
}

FLA_Error FLA_Trinv_lu_ops_var4	(	int	mn_A,
		float *	buff_A,
		int	rs_A,
		int	cs_A
	)

References bli_sger(), bli_sscalv(), bli_strmv(), bli_strsv(), BLIS_LOWER_TRIANGULAR, BLIS_NO_CONJUGATE, BLIS_NO_TRANSPOSE, BLIS_TRANSPOSE, BLIS_UNIT_DIAG, and FLA_MINUS_ONE.

Referenced by FLA_Trinv_lu_opt_var4().

{
  float*    buff_m1 = FLA_FLOAT_PTR( FLA_MINUS_ONE );
  int       i;

  for ( i = 0; i < mn_A; ++i )
  {
    float*    A00       = buff_A + (0  )*cs_A + (0  )*rs_A;
    float*    a10t      = buff_A + (0  )*cs_A + (i  )*rs_A;
    float*    A20       = buff_A + (0  )*cs_A + (i+1)*rs_A;
    float*    a21       = buff_A + (i  )*cs_A + (i+1)*rs_A;
    float*    A22       = buff_A + (i+1)*cs_A + (i+1)*rs_A;

    int       mn_ahead  = mn_A - i - 1;
    int       mn_behind = i;

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

    // FLA_Scal_external( FLA_MINUS_ONE, a21 );
    // FLA_Trsv_external( FLA_LOWER_TRIANGULAR, FLA_NO_TRANSPOSE, FLA_UNIT_DIAG, A22, a21 );
    bli_sscalv( BLIS_NO_CONJUGATE,
                mn_ahead,
                buff_m1,
                a21, rs_A );
    bli_strsv( BLIS_LOWER_TRIANGULAR,
               BLIS_NO_TRANSPOSE,
               BLIS_UNIT_DIAG,
               mn_ahead,
               A22, rs_A, cs_A,
               a21, rs_A );

    // FLA_Ger_external( FLA_MINUS_ONE, a21, a10t, A20 );
    bli_sger( BLIS_NO_CONJUGATE,
              BLIS_NO_CONJUGATE,
              mn_ahead,
              mn_behind,
              buff_m1,
              a21, rs_A,
              a10t, cs_A,
              A20, rs_A, cs_A );

    // FLA_Trmv_external( FLA_LOWER_TRIANGULAR, FLA_TRANSPOSE, FLA_UNIT_DIAG, A00, a10t );
    bli_strmv( BLIS_LOWER_TRIANGULAR,
               BLIS_TRANSPOSE,
               BLIS_UNIT_DIAG,
               mn_behind,
               A00, rs_A, cs_A,
               a10t, cs_A );

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

  }

  return FLA_SUCCESS;
}

FLA_Error FLA_Trinv_lu_opt_var4

(

FLA_Obj

A

)

References FLA_Obj_col_stride(), FLA_Obj_datatype(), FLA_Obj_length(), FLA_Obj_row_stride(), FLA_Trinv_lu_opc_var4(), FLA_Trinv_lu_opd_var4(), FLA_Trinv_lu_ops_var4(), and FLA_Trinv_lu_opz_var4().

Referenced by FLA_Trinv_lu().

{
  FLA_Datatype datatype;
  int          mn_A;
  int          rs_A, cs_A;

  datatype = FLA_Obj_datatype( A );

  mn_A     = FLA_Obj_length( 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_Trinv_lu_ops_var4( mn_A,
                             buff_A, rs_A, cs_A );

      break;
    }

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

      FLA_Trinv_lu_opd_var4( mn_A,
                             buff_A, rs_A, cs_A );

      break;
    }

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

      FLA_Trinv_lu_opc_var4( mn_A,
                             buff_A, rs_A, cs_A );

      break;
    }

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

      FLA_Trinv_lu_opz_var4( mn_A,
                             buff_A, rs_A, cs_A );

      break;
    }
  }

  return FLA_SUCCESS;
}

FLA_Error FLA_Trinv_lu_opz_var4	(	int	mn_A,
		dcomplex *	buff_A,
		int	rs_A,
		int	cs_A
	)

References bli_zger(), bli_zscalv(), bli_ztrmv(), bli_ztrsv(), BLIS_LOWER_TRIANGULAR, BLIS_NO_CONJUGATE, BLIS_NO_TRANSPOSE, BLIS_TRANSPOSE, BLIS_UNIT_DIAG, and FLA_MINUS_ONE.

Referenced by FLA_Trinv_lu_opt_var4().

{
  dcomplex* buff_m1 = FLA_DOUBLE_COMPLEX_PTR( FLA_MINUS_ONE );
  int       i;

  for ( i = 0; i < mn_A; ++i )
  {
    dcomplex* A00       = buff_A + (0  )*cs_A + (0  )*rs_A;
    dcomplex* a10t      = buff_A + (0  )*cs_A + (i  )*rs_A;
    dcomplex* A20       = buff_A + (0  )*cs_A + (i+1)*rs_A;
    dcomplex* a21       = buff_A + (i  )*cs_A + (i+1)*rs_A;
    dcomplex* A22       = buff_A + (i+1)*cs_A + (i+1)*rs_A;

    int       mn_ahead  = mn_A - i - 1;
    int       mn_behind = i;

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

    // FLA_Scal_external( FLA_MINUS_ONE, a21 );
    // FLA_Trsv_external( FLA_LOWER_TRIANGULAR, FLA_NO_TRANSPOSE, FLA_UNIT_DIAG, A22, a21 );
    bli_zscalv( BLIS_NO_CONJUGATE,
                mn_ahead,
                buff_m1,
                a21, rs_A );
    bli_ztrsv( BLIS_LOWER_TRIANGULAR,
               BLIS_NO_TRANSPOSE,
               BLIS_UNIT_DIAG,
               mn_ahead,
               A22, rs_A, cs_A,
               a21, rs_A );

    // FLA_Ger_external( FLA_MINUS_ONE, a21, a10t, A20 );
    bli_zger( BLIS_NO_CONJUGATE,
              BLIS_NO_CONJUGATE,
              mn_ahead,
              mn_behind,
              buff_m1,
              a21, rs_A,
              a10t, cs_A,
              A20, rs_A, cs_A );

    // FLA_Trmv_external( FLA_LOWER_TRIANGULAR, FLA_TRANSPOSE, FLA_UNIT_DIAG, A00, a10t );
    bli_ztrmv( BLIS_LOWER_TRIANGULAR,
               BLIS_TRANSPOSE,
               BLIS_UNIT_DIAG,
               mn_behind,
               A00, rs_A, cs_A,
               a10t, cs_A );

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

  }

  return FLA_SUCCESS;
}