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FLA_Trsm_llh.h File Reference

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Functions

FLA_Error FLA_Trsm_llh_blk_var1 (FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, fla_trsm_t *cntl)
 
FLA_Error FLA_Trsm_llh_blk_var2 (FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, fla_trsm_t *cntl)
 
FLA_Error FLA_Trsm_llh_blk_var3 (FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, fla_trsm_t *cntl)
 
FLA_Error FLA_Trsm_llh_blk_var4 (FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, fla_trsm_t *cntl)
 
FLA_Error FLA_Trsm_llh_unb_var1 (FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B)
 
FLA_Error FLA_Trsm_llh_unb_var2 (FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B)
 
FLA_Error FLA_Trsm_llh_unb_var3 (FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B)
 
FLA_Error FLA_Trsm_llh_unb_var4 (FLA_Diag diagA, FLA_Obj alpha, FLA_Obj A, FLA_Obj B)
 

Function Documentation

◆ FLA_Trsm_llh_blk_var1()

FLA_Error FLA_Trsm_llh_blk_var1 ( FLA_Diag  diagA,
FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
fla_trsm_t *  cntl 
)
16{
17 FLA_Obj ATL, ATR, A00, A01, A02,
18 ABL, ABR, A10, A11, A12,
19 A20, A21, A22;
20
21 FLA_Obj BT, B0,
22 BB, B1,
23 B2;
24
25 dim_t b;
26
27 FLA_Scal_internal( alpha, B,
28 FLA_Cntl_sub_scal( cntl ) );
29
30 FLA_Part_2x2( A, &ATL, &ATR,
31 &ABL, &ABR, 0, 0, FLA_BR );
32
33 FLA_Part_2x1( B, &BT,
34 &BB, 0, FLA_BOTTOM );
35
36 while ( FLA_Obj_length( ABR ) < FLA_Obj_length( A ) ){
37
38 b = FLA_Determine_blocksize( ATL, FLA_TL, FLA_Cntl_blocksize( cntl ) );
39
40 FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, &A01, /**/ &A02,
41 &A10, &A11, /**/ &A12,
42 /* ************* */ /* ******************** */
43 ABL, /**/ ABR, &A20, &A21, /**/ &A22,
44 b, b, FLA_TL );
45
46 FLA_Repart_2x1_to_3x1( BT, &B0,
47 &B1,
48 /* ** */ /* ** */
49 BB, &B2, b, FLA_TOP );
50
51 /*------------------------------------------------------------*/
52
53 /* B1 = B1 - A21' * B2; */
54 FLA_Gemm_internal( FLA_CONJ_TRANSPOSE, FLA_NO_TRANSPOSE,
55 FLA_MINUS_ONE, A21, B2, FLA_ONE, B1,
56 FLA_Cntl_sub_gemm( cntl ) );
57
58 /* B1 = tril( A11' ) \ B1; */
59 FLA_Trsm_internal( FLA_LEFT, FLA_LOWER_TRIANGULAR, FLA_CONJ_TRANSPOSE, diagA,
60 FLA_ONE, A11, B1,
61 FLA_Cntl_sub_trsm( cntl ) );
62
63 /*------------------------------------------------------------*/
64
65 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, /**/ A01, A02,
66 /* ************** */ /* ****************** */
67 A10, /**/ A11, A12,
68 &ABL, /**/ &ABR, A20, /**/ A21, A22,
69 FLA_BR );
70
71 FLA_Cont_with_3x1_to_2x1( &BT, B0,
72 /* ** */ /* ** */
73 B1,
74 &BB, B2, FLA_BOTTOM );
75
76 }
77
78 return FLA_SUCCESS;
79}
FLA_Gemm_internal
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
FLA_Scal_internal
FLA_Error FLA_Scal_internal(FLA_Obj alpha, FLA_Obj A, fla_scal_t *cntl)
Definition FLA_Scal_internal.c:16
FLA_Trsm_internal
FLA_Error FLA_Trsm_internal(FLA_Side side, FLA_Uplo uplo, FLA_Trans transa, FLA_Diag diag, FLA_Obj alpha, FLA_Obj A, FLA_Obj B, fla_trsm_t *cntl)
Definition FLA_Trsm_internal.c:16
FLA_MINUS_ONE
FLA_Obj FLA_MINUS_ONE
Definition FLA_Init.c:22
FLA_ONE
FLA_Obj FLA_ONE
Definition FLA_Init.c:18
FLA_Cont_with_3x3_to_2x2
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_Part_2x2
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_Cont_with_3x1_to_2x1
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_Repart_2x1_to_3x1
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_Part_2x1
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
FLA_Obj_length
dim_t FLA_Obj_length(FLA_Obj obj)
Definition FLA_Query.c:116
FLA_Repart_2x2_to_3x3
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_Determine_blocksize
dim_t FLA_Determine_blocksize(FLA_Obj A_unproc, FLA_Quadrant to_dir, fla_blocksize_t *cntl_blocksizes)
Definition FLA_Blocksize.c:234
dim_t
unsigned long dim_t
Definition FLA_type_defs.h:71
i
int i
Definition bl1_axmyv2.c:145
FLA_Obj_view
Definition FLA_type_defs.h:159

References FLA_Cont_with_3x1_to_2x1(), FLA_Cont_with_3x3_to_2x2(), FLA_Determine_blocksize(), FLA_Gemm_internal(), FLA_MINUS_ONE, FLA_Obj_length(), FLA_ONE, FLA_Part_2x1(), FLA_Part_2x2(), FLA_Repart_2x1_to_3x1(), FLA_Repart_2x2_to_3x3(), FLA_Scal_internal(), FLA_Trsm_internal(), and i.

Referenced by FLA_Trsm_llh().

◆ FLA_Trsm_llh_blk_var2()

FLA_Error FLA_Trsm_llh_blk_var2 ( FLA_Diag  diagA,
FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
fla_trsm_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 BT, B0,
20 BB, B1,
21 B2;
22
23 dim_t b;
24
25 FLA_Scal_internal( alpha, B,
26 FLA_Cntl_sub_scal( cntl ) );
27
28 FLA_Part_2x2( A, &ATL, &ATR,
29 &ABL, &ABR, 0, 0, FLA_BR );
30
31 FLA_Part_2x1( B, &BT,
32 &BB, 0, FLA_BOTTOM );
33
34 while ( FLA_Obj_length( ABR ) < FLA_Obj_length( A ) ){
35
36 b = FLA_Determine_blocksize( ATL, FLA_TL, FLA_Cntl_blocksize( cntl ) );
37
38 FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, &A01, /**/ &A02,
39 &A10, &A11, /**/ &A12,
40 /* ************* */ /* ******************** */
41 ABL, /**/ ABR, &A20, &A21, /**/ &A22,
42 b, b, FLA_TL );
43
44 FLA_Repart_2x1_to_3x1( BT, &B0,
45 &B1,
46 /* ** */ /* ** */
47 BB, &B2, b, FLA_TOP );
48
49 /*------------------------------------------------------------*/
50
51 /* B1 = tril( A11' ) \ B1; */
52 FLA_Trsm_internal( FLA_LEFT, FLA_LOWER_TRIANGULAR, FLA_CONJ_TRANSPOSE, diagA,
53 FLA_ONE, A11, B1,
54 FLA_Cntl_sub_trsm( cntl ) );
55
56 /* B0 = B0 - A10' * B1; */
57 FLA_Gemm_internal( FLA_CONJ_TRANSPOSE, FLA_NO_TRANSPOSE,
58 FLA_MINUS_ONE, A10, B1, FLA_ONE, B0,
59 FLA_Cntl_sub_gemm( cntl ) );
60
61 /*------------------------------------------------------------*/
62
63 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, /**/ A01, A02,
64 /* ************** */ /* ****************** */
65 A10, /**/ A11, A12,
66 &ABL, /**/ &ABR, A20, /**/ A21, A22,
67 FLA_BR );
68
69 FLA_Cont_with_3x1_to_2x1( &BT, B0,
70 /* ** */ /* ** */
71 B1,
72 &BB, B2, FLA_BOTTOM );
73
74 }
75
76 return FLA_SUCCESS;
77}

References FLA_Cont_with_3x1_to_2x1(), FLA_Cont_with_3x3_to_2x2(), FLA_Determine_blocksize(), FLA_Gemm_internal(), FLA_MINUS_ONE, FLA_Obj_length(), FLA_ONE, FLA_Part_2x1(), FLA_Part_2x2(), FLA_Repart_2x1_to_3x1(), FLA_Repart_2x2_to_3x3(), FLA_Scal_internal(), FLA_Trsm_internal(), and i.

Referenced by FLA_Trsm_llh().

◆ FLA_Trsm_llh_blk_var3()

FLA_Error FLA_Trsm_llh_blk_var3 ( FLA_Diag  diagA,
FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
fla_trsm_t *  cntl 
)
14{
15 FLA_Obj BL, BR, B0, B1, B2;
16
17 dim_t b;
18
19 FLA_Part_1x2( B, &BL, &BR, 0, FLA_LEFT );
20
21 while ( FLA_Obj_width( BL ) < FLA_Obj_width( B ) ){
22
23 b = FLA_Determine_blocksize( BR, FLA_RIGHT, FLA_Cntl_blocksize( cntl ) );
24
25 FLA_Repart_1x2_to_1x3( BL, /**/ BR, &B0, /**/ &B1, &B2,
26 b, FLA_RIGHT );
27
28 /*------------------------------------------------------------*/
29
30 /* B1 = tril( A' ) \ B1; */
31 FLA_Trsm_internal( FLA_LEFT, FLA_LOWER_TRIANGULAR, FLA_CONJ_TRANSPOSE, diagA,
32 alpha, A, B1,
33 FLA_Cntl_sub_trsm( cntl ) );
34
35 /*------------------------------------------------------------*/
36
37 FLA_Cont_with_1x3_to_1x2( &BL, /**/ &BR, B0, B1, /**/ B2,
38 FLA_LEFT );
39
40 }
41
42 return FLA_SUCCESS;
43}
FLA_Cont_with_1x3_to_1x2
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_Obj_width
dim_t FLA_Obj_width(FLA_Obj obj)
Definition FLA_Query.c:123
FLA_Part_1x2
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
FLA_Repart_1x2_to_1x3
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

References FLA_Cont_with_1x3_to_1x2(), FLA_Determine_blocksize(), FLA_Obj_width(), FLA_Part_1x2(), FLA_Repart_1x2_to_1x3(), FLA_Trsm_internal(), and i.

Referenced by FLA_Trsm_llh().

◆ FLA_Trsm_llh_blk_var4()

FLA_Error FLA_Trsm_llh_blk_var4 ( FLA_Diag  diagA,
FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
fla_trsm_t *  cntl 
)
16{
17 FLA_Obj BL, BR, B0, B1, B2;
18
19 dim_t b;
20
21 FLA_Part_1x2( B, &BL, &BR, 0, FLA_RIGHT );
22
23 while ( FLA_Obj_width( BR ) < FLA_Obj_width( B ) ){
24
25 b = FLA_Determine_blocksize( BL, FLA_LEFT, FLA_Cntl_blocksize( cntl ) );
26
27 FLA_Repart_1x2_to_1x3( BL, /**/ BR, &B0, &B1, /**/ &B2,
28 b, FLA_LEFT );
29
30 /*------------------------------------------------------------*/
31
32 /* B1 = tril( A' ) \ B1; */
33 FLA_Trsm_internal( FLA_LEFT, FLA_LOWER_TRIANGULAR, FLA_CONJ_TRANSPOSE, diagA,
34 alpha, A, B1,
35 FLA_Cntl_sub_trsm( cntl ) );
36
37 /*------------------------------------------------------------*/
38
39 FLA_Cont_with_1x3_to_1x2( &BL, /**/ &BR, B0, /**/ B1, B2,
40 FLA_RIGHT );
41
42 }
43
44 return FLA_SUCCESS;
45}

References FLA_Cont_with_1x3_to_1x2(), FLA_Determine_blocksize(), FLA_Obj_width(), FLA_Part_1x2(), FLA_Repart_1x2_to_1x3(), FLA_Trsm_internal(), and i.

Referenced by FLA_Trsm_llh().

◆ FLA_Trsm_llh_unb_var1()

FLA_Error FLA_Trsm_llh_unb_var1 ( FLA_Diag  diagA,
FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B 
)
16{
17 FLA_Obj ATL, ATR, A00, a01, A02,
18 ABL, ABR, a10t, alpha11, a12t,
19 A20, a21, A22;
20
21 FLA_Obj BT, B0,
22 BB, b1t,
23 B2;
24
25 FLA_Scal_external( alpha, B );
26
27 FLA_Part_2x2( A, &ATL, &ATR,
28 &ABL, &ABR, 0, 0, FLA_BR );
29
30 FLA_Part_2x1( B, &BT,
31 &BB, 0, FLA_BOTTOM );
32
33 while ( FLA_Obj_length( ABR ) < FLA_Obj_length( A ) ){
34
35 FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, &a01, /**/ &A02,
36 &a10t, &alpha11, /**/ &a12t,
37 /* ************* */ /* ************************** */
38 ABL, /**/ ABR, &A20, &a21, /**/ &A22,
39 1, 1, FLA_TL );
40
41 FLA_Repart_2x1_to_3x1( BT, &B0,
42 &b1t,
43 /* ** */ /* *** */
44 BB, &B2, 1, FLA_TOP );
45
46 /*------------------------------------------------------------*/
47
48 /* b1t = b1t - a21' * B2; */
49 FLA_Gemvc_external( FLA_TRANSPOSE, FLA_CONJUGATE, FLA_MINUS_ONE, B2, a21, FLA_ONE, b1t );
50
51 /* b1t = b1t / alpha11'; */
52 if ( diagA != FLA_UNIT_DIAG )
53 FLA_Inv_scalc_external( FLA_CONJUGATE, alpha11, b1t );
54
55 /*------------------------------------------------------------*/
56
57 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, /**/ a01, A02,
58 /* ************** */ /* ************************ */
59 a10t, /**/ alpha11, a12t,
60 &ABL, /**/ &ABR, A20, /**/ a21, A22,
61 FLA_BR );
62
63 FLA_Cont_with_3x1_to_2x1( &BT, B0,
64 /* ** */ /* *** */
65 b1t,
66 &BB, B2, FLA_BOTTOM );
67
68 }
69
70 return FLA_SUCCESS;
71}
FLA_Inv_scalc_external
FLA_Error FLA_Inv_scalc_external(FLA_Conj conjalpha, FLA_Obj alpha, FLA_Obj A)
Definition FLA_Inv_scalc_external.c:13
FLA_Scal_external
FLA_Error FLA_Scal_external(FLA_Obj alpha, FLA_Obj A)
Definition FLA_Scal_external.c:13
FLA_Gemvc_external
FLA_Error FLA_Gemvc_external(FLA_Trans transa, FLA_Conj conjx, FLA_Obj alpha, FLA_Obj A, FLA_Obj x, FLA_Obj beta, FLA_Obj y)
Definition FLA_Gemvc_external.c:13

References FLA_Cont_with_3x1_to_2x1(), FLA_Cont_with_3x3_to_2x2(), FLA_Gemvc_external(), FLA_Inv_scalc_external(), FLA_MINUS_ONE, FLA_Obj_length(), FLA_ONE, FLA_Part_2x1(), FLA_Part_2x2(), FLA_Repart_2x1_to_3x1(), FLA_Repart_2x2_to_3x3(), FLA_Scal_external(), and i.

Referenced by FLA_Trsm_llh().

◆ FLA_Trsm_llh_unb_var2()

FLA_Error FLA_Trsm_llh_unb_var2 ( FLA_Diag  diagA,
FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B 
)
16{
17 FLA_Obj ATL, ATR, A00, a01, A02,
18 ABL, ABR, a10t, alpha11, a12t,
19 A20, a21, A22;
20
21 FLA_Obj BT, B0,
22 BB, b1t,
23 B2;
24
25 FLA_Scal_external( alpha, B );
26
27 FLA_Part_2x2( A, &ATL, &ATR,
28 &ABL, &ABR, 0, 0, FLA_BR );
29
30 FLA_Part_2x1( B, &BT,
31 &BB, 0, FLA_BOTTOM );
32
33 while ( FLA_Obj_length( ABR ) < FLA_Obj_length( A ) ){
34
35 FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, &a01, /**/ &A02,
36 &a10t, &alpha11, /**/ &a12t,
37 /* ************* */ /* ************************** */
38 ABL, /**/ ABR, &A20, &a21, /**/ &A22,
39 1, 1, FLA_TL );
40
41 FLA_Repart_2x1_to_3x1( BT, &B0,
42 &b1t,
43 /* ** */ /* *** */
44 BB, &B2, 1, FLA_TOP );
45
46 /*------------------------------------------------------------*/
47
48 /* b1t = b1t / alpha11'; */
49 if ( diagA != FLA_UNIT_DIAG )
50 FLA_Inv_scalc_external( FLA_CONJUGATE, alpha11, b1t );
51
52 /* B0 = B0 - a10t' * b1t; */
53 FLA_Gerc_external( FLA_CONJUGATE, FLA_NO_CONJUGATE, FLA_MINUS_ONE, a10t, b1t, B0 );
54
55 /*------------------------------------------------------------*/
56
57 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, /**/ a01, A02,
58 /* ************** */ /* ************************ */
59 a10t, /**/ alpha11, a12t,
60 &ABL, /**/ &ABR, A20, /**/ a21, A22,
61 FLA_BR );
62
63 FLA_Cont_with_3x1_to_2x1( &BT, B0,
64 /* ** */ /* *** */
65 b1t,
66 &BB, B2, FLA_BOTTOM );
67
68 }
69
70 return FLA_SUCCESS;
71}
FLA_Gerc_external
FLA_Error FLA_Gerc_external(FLA_Conj conjx, FLA_Conj conjy, FLA_Obj alpha, FLA_Obj x, FLA_Obj y, FLA_Obj A)
Definition FLA_Gerc_external.c:13

References FLA_Cont_with_3x1_to_2x1(), FLA_Cont_with_3x3_to_2x2(), FLA_Gerc_external(), FLA_Inv_scalc_external(), FLA_MINUS_ONE, FLA_Obj_length(), FLA_Part_2x1(), FLA_Part_2x2(), FLA_Repart_2x1_to_3x1(), FLA_Repart_2x2_to_3x3(), FLA_Scal_external(), and i.

Referenced by FLA_Trsm_llh().

◆ FLA_Trsm_llh_unb_var3()

FLA_Error FLA_Trsm_llh_unb_var3 ( FLA_Diag  diagA,
FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B 
)
16{
17 FLA_Obj BL, BR, B0, b1, B2;
18
19 FLA_Scal_external( alpha, B );
20
21 FLA_Part_1x2( B, &BL, &BR, 0, FLA_LEFT );
22
23 while ( FLA_Obj_width( BL ) < FLA_Obj_width( B ) ){
24
25 FLA_Repart_1x2_to_1x3( BL, /**/ BR, &B0, /**/ &b1, &B2,
26 1, FLA_RIGHT );
27
28 /*------------------------------------------------------------*/
29
30 /* b1 = tril( A' ) \ b1; */
31 FLA_Trsv_external( FLA_LOWER_TRIANGULAR, FLA_CONJ_TRANSPOSE, diagA, A, b1 );
32
33 /*------------------------------------------------------------*/
34
35 FLA_Cont_with_1x3_to_1x2( &BL, /**/ &BR, B0, b1, /**/ B2,
36 FLA_LEFT );
37
38 }
39
40 return FLA_SUCCESS;
41}
FLA_Trsv_external
FLA_Error FLA_Trsv_external(FLA_Uplo uplo, FLA_Trans transa, FLA_Diag diag, FLA_Obj A, FLA_Obj x)
Definition FLA_Trsv_external.c:13

References FLA_Cont_with_1x3_to_1x2(), FLA_Obj_width(), FLA_Part_1x2(), FLA_Repart_1x2_to_1x3(), FLA_Scal_external(), FLA_Trsv_external(), and i.

Referenced by FLA_Trsm_llh().

◆ FLA_Trsm_llh_unb_var4()

FLA_Error FLA_Trsm_llh_unb_var4 ( FLA_Diag  diagA,
FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B 
)
16{
17 FLA_Obj BL, BR, B0, b1, B2;
18
19 FLA_Scal_external( alpha, B );
20
21 FLA_Part_1x2( B, &BL, &BR, 0, FLA_RIGHT );
22
23 while ( FLA_Obj_width( BR ) < FLA_Obj_width( B ) ){
24
25 FLA_Repart_1x2_to_1x3( BL, /**/ BR, &B0, &b1, /**/ &B2,
26 1, FLA_LEFT );
27
28 /*------------------------------------------------------------*/
29
30 /* b1 = tril( A' ) \ b1; */
31 FLA_Trsv_external( FLA_LOWER_TRIANGULAR, FLA_CONJ_TRANSPOSE, diagA, A, b1 );
32
33 /*------------------------------------------------------------*/
34
35 FLA_Cont_with_1x3_to_1x2( &BL, /**/ &BR, B0, /**/ b1, B2,
36 FLA_RIGHT );
37
38 }
39
40 return FLA_SUCCESS;
41}

References FLA_Cont_with_1x3_to_1x2(), FLA_Obj_width(), FLA_Part_1x2(), FLA_Repart_1x2_to_1x3(), FLA_Scal_external(), FLA_Trsv_external(), and i.

Referenced by FLA_Trsm_llh().

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