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 
13 #ifdef FLA_ENABLE_NON_CRITICAL_CODE
14 
FLA_Trsm_ruc_unb_var4(FLA_Diag diagA,FLA_Obj alpha,FLA_Obj A,FLA_Obj B)15 FLA_Error FLA_Trsm_ruc_unb_var4( FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B )
16 {
17   FLA_Obj BT,              B0,
18           BB,              b1t,
19                            B2;
20 
21   FLA_Scal_external( alpha, B );
22 
23   FLA_Part_2x1( B,    &BT,
24                       &BB,            0, FLA_BOTTOM );
25 
26   while ( FLA_Obj_length( BB ) < FLA_Obj_length( B ) ){
27 
28     FLA_Repart_2x1_to_3x1( BT,                &B0,
29                                               &b1t,
30                         /* ** */            /* *** */
31                            BB,                &B2,        1, FLA_TOP );
32 
33     /*------------------------------------------------------------*/
34 
35     /* b1t = b1t * triu( A ); */
36     FLA_Trsv_external( FLA_UPPER_TRIANGULAR, FLA_CONJ_TRANSPOSE, diagA, A, b1t );
37 
38     /*------------------------------------------------------------*/
39 
40     FLA_Cont_with_3x1_to_2x1( &BT,                B0,
41                             /* ** */           /* *** */
42                                                   b1t,
43                               &BB,                B2,     FLA_BOTTOM );
44 
45   }
46 
47   return FLA_SUCCESS;
48 }
49 
50 #endif
51