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FLA_Gemv_t_blk_var6.c File Reference

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Functions

FLA_Error FLA_Gemv_t_blk_var6 (FLA_Obj alpha, FLA_Obj A, FLA_Obj x, FLA_Obj beta, FLA_Obj y, fla_gemv_t *cntl)
 

Function Documentation

◆ FLA_Gemv_t_blk_var6()

FLA_Error FLA_Gemv_t_blk_var6 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  x,
FLA_Obj  beta,
FLA_Obj  y,
fla_gemv_t cntl 
)

References FLA_Cont_with_3x1_to_2x1(), FLA_Determine_blocksize(), FLA_Gemv_internal(), FLA_Obj_length(), FLA_ONE, FLA_Part_2x1(), FLA_Repart_2x1_to_3x1(), FLA_Scal_internal(), and x1.

Referenced by FLA_Gemv_t().

16 {
17  FLA_Obj AT, A0,
18  AB, A1,
19  A2;
20 
21  FLA_Obj xT, x0,
22  xB, x1,
23  x2;
24 
25  dim_t b;
26 
27  FLA_Scal_internal( beta, y,
28  FLA_Cntl_sub_scal( cntl ) );
29 
30  FLA_Part_2x1( A, &AT,
31  &AB, 0, FLA_BOTTOM );
32 
33  FLA_Part_2x1( x, &xT,
34  &xB, 0, FLA_BOTTOM );
35 
36  while ( FLA_Obj_length( AB ) < FLA_Obj_length( A ) ){
37 
38  b = FLA_Determine_blocksize( AT, FLA_TOP, FLA_Cntl_blocksize( cntl ) );
39 
40  FLA_Repart_2x1_to_3x1( AT, &A0,
41  &A1,
42  /* ** */ /* ** */
43  AB, &A2, b, FLA_TOP );
44 
45  FLA_Repart_2x1_to_3x1( xT, &x0,
46  &x1,
47  /* ** */ /* ** */
48  xB, &x2, b, FLA_TOP );
49 
50  /*------------------------------------------------------------*/
51 
52  /* y = alpha * A1' * x1 + y */
53  FLA_Gemv_internal( FLA_TRANSPOSE,
54  alpha, A1, x1, FLA_ONE, y,
55  FLA_Cntl_sub_gemv( cntl ) );
56 
57  /*------------------------------------------------------------*/
58 
59  FLA_Cont_with_3x1_to_2x1( &AT, A0,
60  /* ** */ /* ** */
61  A1,
62  &AB, A2, FLA_BOTTOM );
63 
64  FLA_Cont_with_3x1_to_2x1( &xT, x0,
65  /* ** */ /* ** */
66  x1,
67  &xB, x2, FLA_BOTTOM );
68 
69  }
70 
71  return FLA_SUCCESS;
72 }
FLA_Error FLA_Repart_2x1_to_3x1(FLA_Obj AT, FLA_Obj *A0, FLA_Obj *A1, FLA_Obj AB, FLA_Obj *A2, dim_t mb, FLA_Side side)
Definition: FLA_View.c:226
FLA_Error FLA_Gemv_internal(FLA_Trans transa, FLA_Obj alpha, FLA_Obj A, FLA_Obj x, FLA_Obj beta, FLA_Obj y, fla_gemv_t *cntl)
Definition: FLA_Gemv_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_Cont_with_3x1_to_2x1(FLA_Obj *AT, FLA_Obj A0, FLA_Obj A1, FLA_Obj *AB, FLA_Obj A2, FLA_Side side)
Definition: FLA_View.c:428
FLA_Obj FLA_ONE
Definition: FLA_Init.c:18
Definition: FLA_type_defs.h:158
FLA_Error FLA_Part_2x1(FLA_Obj A, FLA_Obj *A1, FLA_Obj *A2, dim_t mb, FLA_Side side)
Definition: FLA_View.c:76
x1
Definition: bl1_dotsv2.c:374
FLA_Error FLA_Scal_internal(FLA_Obj alpha, FLA_Obj A, fla_scal_t *cntl)
Definition: FLA_Scal_internal.c:16
dim_t FLA_Obj_length(FLA_Obj obj)
Definition: FLA_Query.c:116