1 /*
2
3 Copyright (C) 2014, The University of Texas at Austin
4
5 This file is part of libflame and is available under the 3-Clause
6 BSD license, which can be found in the LICENSE file at the top-level
7 directory, or at http://opensource.org/licenses/BSD-3-Clause
8
9 */
10
11 #include "FLAME.h"
12
FLA_Trmm_rlc_blk_var2(FLA_Diag diagA,FLA_Obj alpha,FLA_Obj A,FLA_Obj B,fla_trmm_t * cntl)13 FLA_Error FLA_Trmm_rlc_blk_var2( FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, fla_trmm_t* cntl )
14 {
15 FLA_Obj ATL, ATR, A00, A01, A02,
16 ABL, ABR, A10, A11, A12,
17 A20, A21, A22;
18
19 FLA_Obj BL, BR, B0, B1, B2;
20
21 dim_t b;
22
23 FLA_Scal_internal( alpha, B,
24 FLA_Cntl_sub_scal( cntl ) );
25
26 FLA_Part_2x2( A, &ATL, &ATR,
27 &ABL, &ABR, 0, 0, FLA_TL );
28
29 FLA_Part_1x2( B, &BL, &BR, 0, FLA_LEFT );
30
31 while ( FLA_Obj_length( ATL ) < FLA_Obj_length( A ) ){
32
33 b = FLA_Determine_blocksize( ABR, FLA_BR, FLA_Cntl_blocksize( cntl ) );
34
35 FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, /**/ &A01, &A02,
36 /* ************* */ /* ******************** */
37 &A10, /**/ &A11, &A12,
38 ABL, /**/ ABR, &A20, /**/ &A21, &A22,
39 b, b, FLA_BR );
40
41 FLA_Repart_1x2_to_1x3( BL, /**/ BR, &B0, /**/ &B1, &B2,
42 b, FLA_RIGHT );
43
44 /*------------------------------------------------------------*/
45
46 /* B0 = B0 + B1 * A10; */
47 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_CONJ_NO_TRANSPOSE,
48 FLA_ONE, B1, A10, FLA_ONE, B0,
49 FLA_Cntl_sub_gemm( cntl ) );
50
51 /* B1 = B1 * tril( A11 ); */
52 FLA_Trmm_internal( FLA_RIGHT, FLA_LOWER_TRIANGULAR, FLA_CONJ_NO_TRANSPOSE, diagA,
53 FLA_ONE, A11, B1,
54 FLA_Cntl_sub_trmm( cntl ) );
55
56 /*------------------------------------------------------------*/
57
58 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, A01, /**/ A02,
59 A10, A11, /**/ A12,
60 /* ************** */ /* ****************** */
61 &ABL, /**/ &ABR, A20, A21, /**/ A22,
62 FLA_TL );
63
64 FLA_Cont_with_1x3_to_1x2( &BL, /**/ &BR, B0, B1, /**/ B2,
65 FLA_LEFT );
66
67 }
68
69 return FLA_SUCCESS;
70 }
71
72