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FLA_Eig_gest_nl_unb_var4.c File Reference

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FLA_Error FLA_Eig_gest_nl_unb_var4 (FLA_Obj A, FLA_Obj Y, FLA_Obj B)
 

Function Documentation

◆ FLA_Eig_gest_nl_unb_var4()

FLA_Error FLA_Eig_gest_nl_unb_var4 ( FLA_Obj  A,
FLA_Obj  Y,
FLA_Obj  B 
)

References FLA_Axpy_external(), FLA_Cont_with_3x3_to_2x2(), FLA_Copy_external(), FLA_Ger_external(), FLA_Her2c_external(), FLA_Obj_length(), FLA_ONE, FLA_ONE_HALF, FLA_Part_2x2(), FLA_Repart_2x2_to_3x3(), and FLA_Scal_external().

Referenced by FLA_Eig_gest_nl().

16 {
17  FLA_Obj ATL, ATR, A00, a01, A02,
18  ABL, ABR, a10t, alpha11, a12t,
19  A20, a21, A22;
20 
21  FLA_Obj BTL, BTR, B00, b01, B02,
22  BBL, BBR, b10t, beta11, b12t,
23  B20, b21, B22;
24 
25  //FLA_Obj yL, yR, y10t, psi11, y12t;
26 
27  //FLA_Obj y10t_t,
28  // y10t_b;
29 
30  FLA_Obj psi11, y12t,
31  y21, Y22;
32 
33  FLA_Part_2x2( A, &ATL, &ATR,
34  &ABL, &ABR, 0, 0, FLA_TL );
35 
36  FLA_Part_2x2( B, &BTL, &BTR,
37  &BBL, &BBR, 0, 0, FLA_TL );
38 
39  //FLA_Part_1x2( Y, &yL, &yR, 0, FLA_LEFT );
40 
41  FLA_Part_2x2( Y, &psi11, &y12t,
42  &y21, &Y22, 1, 1, FLA_TL );
43 
44  while ( FLA_Obj_length( ATL ) < FLA_Obj_length( A ) ){
45 
46  FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, /**/ &a01, &A02,
47  /* ************* */ /* ************************** */
48  &a10t, /**/ &alpha11, &a12t,
49  ABL, /**/ ABR, &A20, /**/ &a21, &A22,
50  1, 1, FLA_BR );
51 
52  FLA_Repart_2x2_to_3x3( BTL, /**/ BTR, &B00, /**/ &b01, &B02,
53  /* ************* */ /* ************************* */
54  &b10t, /**/ &beta11, &b12t,
55  BBL, /**/ BBR, &B20, /**/ &b21, &B22,
56  1, 1, FLA_BR );
57 
58  //FLA_Repart_1x2_to_1x3( yL, /**/ yR, &y10t, /**/ &psi11, &y12t,
59  // 1, FLA_RIGHT );
60 
61  /*------------------------------------------------------------*/
62 
63  //FLA_Part_2x1( y10t, &y10t_t,
64  // &y10t_b, 1, FLA_TOP );
65 
66  //// y10t = alpha11 * b10t;
67  //FLA_Copy_external( b10t, y10t_t );
68  //FLA_Scal_external( alpha11, y10t_t );
69  // psi11 = 1/2 * alpha11;
70  FLA_Copy_external( alpha11, psi11 );
72 
73  //// a10t = a10t + 1/2 * y10t;
74  //FLA_Axpy_external( FLA_ONE_HALF, y10t_t, a10t );
75  // a10t = a10t + 1/2 * alpha11 * b10t;
76  FLA_Axpy_external( psi11, b10t, a10t );
77 
78  // A00 = A00 + a10t' * b10t + b10t' * a10t;
79  FLA_Her2c_external( FLA_LOWER_TRIANGULAR, FLA_CONJUGATE,
80  FLA_ONE, a10t, b10t, A00 );
81 
82  //// a10t = a10t + 1/2 * y10t;
83  //FLA_Axpy_external( FLA_ONE_HALF, y10t_t, a10t );
84  // a10t = a10t + 1/2 * alpha11 * b10t;
85  FLA_Axpy_external( psi11, b10t, a10t );
86 
87  // a10t = conj(beta11) * a10t;
88  // = beta11 * a10t;
89  FLA_Scal_external( beta11, a10t );
90 
91  // alpha11 = conj(beta11) * alpha11 * beta11;
92  // = beta11 * alpha11 * beta11;
93  FLA_Scal_external( beta11, alpha11 );
94  FLA_Scal_external( beta11, alpha11 );
95 
96  // A20 = A20 + a21 * b10t;
97  FLA_Ger_external( FLA_ONE, a21, b10t, A20 );
98 
99  // a21 = a21 * beta11;
100  FLA_Scal_external( beta11, a21 );
101 
102  /*------------------------------------------------------------*/
103 
104  FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, a01, /**/ A02,
105  a10t, alpha11, /**/ a12t,
106  /* ************** */ /* ************************ */
107  &ABL, /**/ &ABR, A20, a21, /**/ A22,
108  FLA_TL );
109 
110  FLA_Cont_with_3x3_to_2x2( &BTL, /**/ &BTR, B00, b01, /**/ B02,
111  b10t, beta11, /**/ b12t,
112  /* ************** */ /* *********************** */
113  &BBL, /**/ &BBR, B20, b21, /**/ B22,
114  FLA_TL );
115 
116  //FLA_Cont_with_1x3_to_1x2( &yL, /**/ &yR, y10t, psi11, /**/ y12t,
117  // FLA_LEFT );
118  }
119 
120  return FLA_SUCCESS;
121 }
FLA_Error FLA_Axpy_external(FLA_Obj alpha, FLA_Obj A, FLA_Obj B)
Definition: FLA_Axpy_external.c:13
FLA_Obj FLA_ONE_HALF
Definition: FLA_Init.c:19
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
FLA_Error FLA_Copy_external(FLA_Obj A, FLA_Obj B)
Definition: FLA_Copy_external.c:13
Definition: FLA_type_defs.h:158
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_Ger_external(FLA_Obj alpha, FLA_Obj x, FLA_Obj y, FLA_Obj A)
Definition: FLA_Ger_external.c:13
dim_t FLA_Obj_length(FLA_Obj obj)
Definition: FLA_Query.c:116
FLA_Error FLA_Her2c_external(FLA_Uplo uplo, FLA_Conj conj, FLA_Obj alpha, FLA_Obj x, FLA_Obj y, FLA_Obj A)
Definition: FLA_Her2c_external.c:13