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FLA_Syr2k_lt_blk_var3.c File Reference

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FLA_Error FLA_Syr2k_lt_blk_var3 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C, fla_syr2k_t *cntl)
 

Function Documentation

◆ FLA_Syr2k_lt_blk_var3()

FLA_Error FLA_Syr2k_lt_blk_var3 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
FLA_Obj  beta,
FLA_Obj  C,
fla_syr2k_t cntl 
)

References FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x3_to_2x2(), FLA_Determine_blocksize(), FLA_Gemm_internal(), FLA_Obj_width(), FLA_ONE, FLA_Part_1x2(), FLA_Part_2x2(), FLA_Repart_1x2_to_1x3(), FLA_Repart_2x2_to_3x3(), FLA_Scalr_internal(), and FLA_Syr2k_internal().

Referenced by FLA_Syr2k_lt().

14 {
15  FLA_Obj AL, AR, A0, A1, A2;
16 
17  FLA_Obj BL, BR, B0, B1, B2;
18 
19  FLA_Obj CTL, CTR, C00, C01, C02,
20  CBL, CBR, C10, C11, C12,
21  C20, C21, C22;
22 
23  dim_t b;
24 
25  FLA_Scalr_internal( FLA_LOWER_TRIANGULAR, beta, C,
26  FLA_Cntl_sub_scalr( cntl ) );
27 
28  FLA_Part_1x2( A, &AL, &AR, 0, FLA_LEFT );
29 
30  FLA_Part_1x2( B, &BL, &BR, 0, FLA_LEFT );
31 
32  FLA_Part_2x2( C, &CTL, &CTR,
33  &CBL, &CBR, 0, 0, FLA_TL );
34 
35  while ( FLA_Obj_width( AL ) < FLA_Obj_width( A ) ){
36 
37  b = FLA_Determine_blocksize( AR, FLA_RIGHT, FLA_Cntl_blocksize( cntl ) );
38 
39  FLA_Repart_1x2_to_1x3( AL, /**/ AR, &A0, /**/ &A1, &A2,
40  b, FLA_RIGHT );
41 
42  FLA_Repart_1x2_to_1x3( BL, /**/ BR, &B0, /**/ &B1, &B2,
43  b, FLA_RIGHT );
44 
45  FLA_Repart_2x2_to_3x3( CTL, /**/ CTR, &C00, /**/ &C01, &C02,
46  /* ************* */ /* ******************** */
47  &C10, /**/ &C11, &C12,
48  CBL, /**/ CBR, &C20, /**/ &C21, &C22,
49  b, b, FLA_BR );
50 
51  /*------------------------------------------------------------*/
52 
53  /* C10 = C10 + A1' * B0 */
54  FLA_Gemm_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE,
55  alpha, A1, B0, FLA_ONE, C10,
56  FLA_Cntl_sub_gemm1( cntl ) );
57 
58  /* C21 = C21 + B2' * A1 */
59  FLA_Gemm_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE,
60  alpha, B2, A1, FLA_ONE, C21,
61  FLA_Cntl_sub_gemm2( cntl ) );
62 
63  /* C11 = C11 + A1' * B1 + B1' * A1 */
64  FLA_Syr2k_internal( FLA_LOWER_TRIANGULAR, FLA_TRANSPOSE,
65  alpha, A1, B1, FLA_ONE, C11,
66  FLA_Cntl_sub_syr2k( cntl ) );
67 
68  /*------------------------------------------------------------*/
69 
70  FLA_Cont_with_1x3_to_1x2( &AL, /**/ &AR, A0, A1, /**/ A2,
71  FLA_LEFT );
72 
73  FLA_Cont_with_1x3_to_1x2( &BL, /**/ &BR, B0, B1, /**/ B2,
74  FLA_LEFT );
75 
76  FLA_Cont_with_3x3_to_2x2( &CTL, /**/ &CTR, C00, C01, /**/ C02,
77  C10, C11, /**/ C12,
78  /* ************** */ /* ****************** */
79  &CBL, /**/ &CBR, C20, C21, /**/ C22,
80  FLA_TL );
81 
82  }
83 
84  return FLA_SUCCESS;
85 }
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_Gemm_internal(FLA_Trans transa, FLA_Trans transb, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C, fla_gemm_t *cntl)
Definition: FLA_Gemm_internal.c:16
unsigned long dim_t
Definition: FLA_type_defs.h:71
dim_t FLA_Determine_blocksize(FLA_Obj A_unproc, FLA_Quadrant to_dir, fla_blocksize_t *cntl_blocksizes)
Definition: FLA_Blocksize.c:234
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
dim_t FLA_Obj_width(FLA_Obj obj)
Definition: FLA_Query.c:123
FLA_Error FLA_Syr2k_internal(FLA_Uplo uplo, FLA_Trans trans, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C, fla_syr2k_t *cntl)
Definition: FLA_Syr2k_internal.c:16
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_Scalr_internal(FLA_Uplo uplo, FLA_Obj alpha, FLA_Obj A, fla_scalr_t *cntl)
Definition: FLA_Scalr_internal.c:16
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