Functions | |
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_var2 | ( | FLA_Diag | diagA, | |
FLA_Obj | alpha, | |||
FLA_Obj | A, | |||
FLA_Obj | B, | |||
fla_trsm_t * | cntl | |||
) |
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(), and FLA_Trsm_internal().
Referenced by FLA_Trsm_llh().
00036 { 00037 FLA_Obj ATL, ATR, A00, A01, A02, 00038 ABL, ABR, A10, A11, A12, 00039 A20, A21, A22; 00040 00041 FLA_Obj BT, B0, 00042 BB, B1, 00043 B2; 00044 00045 dim_t b; 00046 00047 FLA_Part_2x2( A, &ATL, &ATR, 00048 &ABL, &ABR, 0, 0, FLA_BR ); 00049 00050 FLA_Part_2x1( B, &BT, 00051 &BB, 0, FLA_BOTTOM ); 00052 00053 while ( FLA_Obj_length( ABR ) < FLA_Obj_length( A ) ){ 00054 00055 b = FLA_Determine_blocksize( ATL, FLA_TL, FLA_Cntl_blocksize( cntl ) ); 00056 00057 FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, &A01, /**/ &A02, 00058 &A10, &A11, /**/ &A12, 00059 /* ************* */ /* ******************** */ 00060 ABL, /**/ ABR, &A20, &A21, /**/ &A22, 00061 b, b, FLA_TL ); 00062 00063 FLA_Repart_2x1_to_3x1( BT, &B0, 00064 &B1, 00065 /* ** */ /* ** */ 00066 BB, &B2, b, FLA_TOP ); 00067 00068 /*------------------------------------------------------------*/ 00069 00070 /* B1 = tril( A11' ) \ B1; */ 00071 FLA_Trsm_internal( FLA_LEFT, FLA_LOWER_TRIANGULAR, FLA_CONJ_TRANSPOSE, diagA, 00072 alpha, A11, B1, 00073 FLA_Cntl_sub_trsm( cntl ) ); 00074 00075 /* B0 = B0 - A10' * B1; */ 00076 FLA_Gemm_internal( FLA_CONJ_TRANSPOSE, FLA_NO_TRANSPOSE, 00077 FLA_MINUS_ONE, A10, B1, FLA_ONE, B0, 00078 FLA_Cntl_sub_gemm( cntl ) ); 00079 00080 /*------------------------------------------------------------*/ 00081 00082 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, /**/ A01, A02, 00083 /* ************** */ /* ****************** */ 00084 A10, /**/ A11, A12, 00085 &ABL, /**/ &ABR, A20, /**/ A21, A22, 00086 FLA_BR ); 00087 00088 FLA_Cont_with_3x1_to_2x1( &BT, B0, 00089 /* ** */ /* ** */ 00090 B1, 00091 &BB, B2, FLA_BOTTOM ); 00092 00093 } 00094 00095 return FLA_SUCCESS; 00096 }