Functions | |
FLA_Error | FLA_Sylv_nn_blk_var16 (FLA_Obj isgn, FLA_Obj A, FLA_Obj B, FLA_Obj C, FLA_Obj scale, fla_sylv_t *cntl) |
FLA_Error FLA_Sylv_nn_blk_var16 | ( | FLA_Obj | isgn, | |
FLA_Obj | A, | |||
FLA_Obj | B, | |||
FLA_Obj | C, | |||
FLA_Obj | scale, | |||
fla_sylv_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_Sylv_internal().
Referenced by FLA_Sylv_nn().
00038 { 00039 FLA_Obj ATL, ATR, A00, A01, A02, 00040 ABL, ABR, A10, A11, A12, 00041 A20, A21, A22; 00042 00043 FLA_Obj CT, C0, 00044 CB, C1, 00045 C2; 00046 00047 dim_t b; 00048 00049 FLA_Part_2x2( A, &ATL, &ATR, 00050 &ABL, &ABR, 0, 0, FLA_BR ); 00051 00052 FLA_Part_2x1( C, &CT, 00053 &CB, 0, FLA_BOTTOM ); 00054 00055 while ( FLA_Obj_length( ABR ) < FLA_Obj_length( A ) ){ 00056 00057 b = FLA_Determine_blocksize( CT, FLA_TOP, FLA_Cntl_blocksize( cntl ) ); 00058 00059 FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, &A01, /**/ &A02, 00060 &A10, &A11, /**/ &A12, 00061 /* ************* */ /* ******************** */ 00062 ABL, /**/ ABR, &A20, &A21, /**/ &A22, 00063 b, b, FLA_TL ); 00064 00065 FLA_Repart_2x1_to_3x1( CT, &C0, 00066 &C1, 00067 /* ** */ /* ** */ 00068 CB, &C2, b, FLA_TOP ); 00069 00070 // Loop Invariant: 00071 // CT = CT - ATR * sylv( ABR, B, CB ) 00072 // CB = sylv( ABR, B, CB ) 00073 00074 /*------------------------------------------------------------*/ 00075 00076 // C1 = sylv( A11, B, C1 ); 00077 FLA_Sylv_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00078 isgn, A11, B, C1, scale, 00079 FLA_Cntl_sub_sylv1( cntl ) ); 00080 00081 // C0 = C0 - A01 * C1; 00082 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00083 FLA_MINUS_ONE, A01, C1, FLA_ONE, C0, 00084 FLA_Cntl_sub_gemm1( cntl ) ); 00085 00086 /*------------------------------------------------------------*/ 00087 00088 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, /**/ A01, A02, 00089 /* ************** */ /* ****************** */ 00090 A10, /**/ A11, A12, 00091 &ABL, /**/ &ABR, A20, /**/ A21, A22, 00092 FLA_BR ); 00093 00094 FLA_Cont_with_3x1_to_2x1( &CT, C0, 00095 /* ** */ /* ** */ 00096 C1, 00097 &CB, C2, FLA_BOTTOM ); 00098 00099 } 00100 00101 return FLA_SUCCESS; 00102 }