libflame  revision_anchor
Functions
FLA_Trmm_ruc_unb_var1.c File Reference

(r)

Functions

FLA_Error FLA_Trmm_ruc_unb_var1 (FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B)
 

Function Documentation

◆ FLA_Trmm_ruc_unb_var1()

FLA_Error FLA_Trmm_ruc_unb_var1 ( FLA_Diag  diagA,
FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B 
)

References FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x3_to_2x2(), FLA_Gemvc_external(), FLA_Obj_length(), FLA_ONE, FLA_Part_1x2(), FLA_Part_2x2(), FLA_Repart_1x2_to_1x3(), FLA_Repart_2x2_to_3x3(), FLA_Scal_external(), and FLA_Scalc_external().

Referenced by FLA_Trmm_ruc().

16 {
17  FLA_Obj ATL, ATR, A00, a01, A02,
18  ABL, ABR, a10t, alpha11, a12t,
19  A20, a21, A22;
20 
21  FLA_Obj BL, BR, B0, b1, B2;
22 
23  FLA_Scal_external( alpha, B );
24 
25  FLA_Part_2x2( A, &ATL, &ATR,
26  &ABL, &ABR, 0, 0, FLA_BR );
27 
28  FLA_Part_1x2( B, &BL, &BR, 0, FLA_RIGHT );
29 
30  while ( FLA_Obj_length( ABR ) < FLA_Obj_length( A ) ){
31 
32  FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, &a01, /**/ &A02,
33  &a10t, &alpha11, /**/ &a12t,
34  /* ************* */ /* ************************** */
35  ABL, /**/ ABR, &A20, &a21, /**/ &A22,
36  1, 1, FLA_TL );
37 
38  FLA_Repart_1x2_to_1x3( BL, /**/ BR, &B0, &b1, /**/ &B2,
39  1, FLA_LEFT );
40 
41  /*------------------------------------------------------------*/
42 
43  /* b1 = b1 * alpha11; */
44  if ( diagA != FLA_UNIT_DIAG )
45  FLA_Scalc_external( FLA_CONJUGATE, alpha11, b1 );
46 
47  /* b1 = b1 + B0 * a01; */
48  FLA_Gemvc_external( FLA_NO_TRANSPOSE, FLA_CONJUGATE, FLA_ONE, B0, a01, FLA_ONE, b1 );
49 
50  /*------------------------------------------------------------*/
51 
52  FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, /**/ a01, A02,
53  /* ************** */ /* ************************ */
54  a10t, /**/ alpha11, a12t,
55  &ABL, /**/ &ABR, A20, /**/ a21, A22,
56  FLA_BR );
57 
58  FLA_Cont_with_1x3_to_1x2( &BL, /**/ &BR, B0, /**/ b1, B2,
59  FLA_RIGHT );
60 
61  }
62 
63  return FLA_SUCCESS;
64 }
FLA_Error FLA_Repart_1x2_to_1x3(FLA_Obj AL, FLA_Obj AR, FLA_Obj *A0, FLA_Obj *A1, FLA_Obj *A2, dim_t nb, FLA_Side side)
Definition: FLA_View.c:267
FLA_Error FLA_Scal_external(FLA_Obj alpha, FLA_Obj A)
Definition: FLA_Scal_external.c:13
FLA_Error FLA_Repart_2x2_to_3x3(FLA_Obj ATL, FLA_Obj ATR, FLA_Obj *A00, FLA_Obj *A01, FLA_Obj *A02, FLA_Obj *A10, FLA_Obj *A11, FLA_Obj *A12, FLA_Obj ABL, FLA_Obj ABR, FLA_Obj *A20, FLA_Obj *A21, FLA_Obj *A22, dim_t mb, dim_t nb, FLA_Quadrant quadrant)
Definition: FLA_View.c:142
FLA_Error FLA_Part_2x2(FLA_Obj A, FLA_Obj *A11, FLA_Obj *A12, FLA_Obj *A21, FLA_Obj *A22, dim_t mb, dim_t nb, FLA_Quadrant quadrant)
Definition: FLA_View.c:17
FLA_Obj FLA_ONE
Definition: FLA_Init.c:18
Definition: FLA_type_defs.h:158
FLA_Error FLA_Cont_with_1x3_to_1x2(FLA_Obj *AL, FLA_Obj *AR, FLA_Obj A0, FLA_Obj A1, FLA_Obj A2, FLA_Side side)
Definition: FLA_View.c:475
FLA_Error FLA_Gemvc_external(FLA_Trans transa, FLA_Conj conjx, FLA_Obj alpha, FLA_Obj A, FLA_Obj x, FLA_Obj beta, FLA_Obj y)
Definition: FLA_Gemvc_external.c:13
FLA_Error FLA_Scalc_external(FLA_Conj conjalpha, FLA_Obj alpha, FLA_Obj A)
Definition: FLA_Scalc_external.c:13
FLA_Error FLA_Cont_with_3x3_to_2x2(FLA_Obj *ATL, FLA_Obj *ATR, FLA_Obj A00, FLA_Obj A01, FLA_Obj A02, FLA_Obj A10, FLA_Obj A11, FLA_Obj A12, FLA_Obj *ABL, FLA_Obj *ABR, FLA_Obj A20, FLA_Obj A21, FLA_Obj A22, FLA_Quadrant quadrant)
Definition: FLA_View.c:304
FLA_Error FLA_Part_1x2(FLA_Obj A, FLA_Obj *A1, FLA_Obj *A2, dim_t nb, FLA_Side side)
Definition: FLA_View.c:110
dim_t FLA_Obj_length(FLA_Obj obj)
Definition: FLA_Query.c:116