Functions | |
FLA_Error | FLA_Sylv_nn_blk_var14 (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_var14 | ( | FLA_Obj | isgn, | |
FLA_Obj | A, | |||
FLA_Obj | B, | |||
FLA_Obj | C, | |||
FLA_Obj | scale, | |||
fla_sylv_t * | cntl | |||
) |
References FLA_Cont_with_3x3_to_2x2(), FLA_Determine_blocksize(), FLA_Gemm_internal(), FLA_MINUS_ONE, FLA_Obj_length(), FLA_ONE, FLA_Part_2x2(), 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 BTL, BTR, B00, B01, B02, 00044 BBL, BBR, B10, B11, B12, 00045 B20, B21, B22; 00046 00047 FLA_Obj CTL, CTR, C00, C01, C02, 00048 CBL, CBR, C10, C11, C12, 00049 C20, C21, C22; 00050 00051 dim_t b; 00052 00053 FLA_Part_2x2( A, &ATL, &ATR, 00054 &ABL, &ABR, 0, 0, FLA_BR ); 00055 00056 FLA_Part_2x2( B, &BTL, &BTR, 00057 &BBL, &BBR, 0, 0, FLA_TL ); 00058 00059 FLA_Part_2x2( C, &CTL, &CTR, 00060 &CBL, &CBR, 0, 0, FLA_BL ); 00061 00062 while ( FLA_Obj_length( ABR ) < FLA_Obj_length( A ) ){ 00063 00064 b = FLA_Determine_blocksize( CTR, FLA_TR, FLA_Cntl_blocksize( cntl ) ); 00065 00066 FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, &A01, /**/ &A02, 00067 &A10, &A11, /**/ &A12, 00068 /* ************* */ /* ******************** */ 00069 ABL, /**/ ABR, &A20, &A21, /**/ &A22, 00070 b, b, FLA_TL ); 00071 00072 FLA_Repart_2x2_to_3x3( BTL, /**/ BTR, &B00, /**/ &B01, &B02, 00073 /* ************* */ /* ******************** */ 00074 &B10, /**/ &B11, &B12, 00075 BBL, /**/ BBR, &B20, /**/ &B21, &B22, 00076 b, b, FLA_BR ); 00077 00078 FLA_Repart_2x2_to_3x3( CTL, /**/ CTR, &C00, /**/ &C01, &C02, 00079 &C10, /**/ &C11, &C12, 00080 /* ************* */ /* ******************** */ 00081 CBL, /**/ CBR, &C20, /**/ &C21, &C22, 00082 b, b, FLA_TR ); 00083 00084 // Loop Invariant: 00085 // CTL = sylv( ATL, BTL, CTL - ATR * sylv( ABR, BTL, CBL ) ) 00086 // CTR = CTR - ATR * sylv( ABR, BBR, CBR - sylv( ABR, BTL, CBL ) * BTR ) 00087 // - sylv( ATL, BTL, CTL - ATR * sylv( ABR, BTL, CBL ) ) * BTR 00088 // CBL = sylv( ABR, BTL, CBL ) 00089 // CBR = sylv( ABR, BBR, CBR - sylv( ABR, BTL, CBL ) * BTR ) 00090 00091 /*------------------------------------------------------------*/ 00092 00093 // C11 = sylv( A11, B11, C11 ); 00094 FLA_Sylv_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00095 isgn, A11, B11, C11, scale, 00096 FLA_Cntl_sub_sylv1( cntl ) ); 00097 00098 // C01 = sylv( A00, B11, C01 - A01 * C11 ); 00099 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00100 FLA_MINUS_ONE, A01, C11, FLA_ONE, C01, 00101 FLA_Cntl_sub_gemm1( cntl ) ); 00102 00103 FLA_Sylv_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00104 isgn, A00, B11, C01, scale, 00105 FLA_Cntl_sub_sylv2( cntl ) ); 00106 00107 // C12 = sylv( A11, B22, C12 -/+ C11 * B12 ); 00108 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00109 FLA_NEGATE( isgn ), C11, B12, FLA_ONE, C12, 00110 FLA_Cntl_sub_gemm2( cntl ) ); 00111 00112 FLA_Sylv_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00113 isgn, A11, B22, C12, scale, 00114 FLA_Cntl_sub_sylv3( cntl ) ); 00115 00116 // C02 = C02 - A01 * C12 -/+ C01 * B12; 00117 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00118 FLA_NEGATE( isgn ), C01, B12, FLA_ONE, C02, 00119 FLA_Cntl_sub_gemm3( cntl ) ); 00120 00121 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00122 FLA_MINUS_ONE, A01, C12, FLA_ONE, C02, 00123 FLA_Cntl_sub_gemm4( cntl ) ); 00124 00125 /*------------------------------------------------------------*/ 00126 00127 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, /**/ A01, A02, 00128 /* ************** */ /* ****************** */ 00129 A10, /**/ A11, A12, 00130 &ABL, /**/ &ABR, A20, /**/ A21, A22, 00131 FLA_BR ); 00132 00133 FLA_Cont_with_3x3_to_2x2( &BTL, /**/ &BTR, B00, B01, /**/ B02, 00134 B10, B11, /**/ B12, 00135 /* ************** */ /* ****************** */ 00136 &BBL, /**/ &BBR, B20, B21, /**/ B22, 00137 FLA_TL ); 00138 00139 FLA_Cont_with_3x3_to_2x2( &CTL, /**/ &CTR, C00, C01, /**/ C02, 00140 /* ************** */ /* ****************** */ 00141 C10, C11, /**/ C12, 00142 &CBL, /**/ &CBR, C20, C21, /**/ C22, 00143 FLA_BL ); 00144 00145 } 00146 00147 return FLA_SUCCESS; 00148 }