Functions | |
FLA_Error | FLA_Sylv_tt_blk_var2 (FLA_Obj isgn, FLA_Obj A, FLA_Obj B, FLA_Obj C, FLA_Obj scale, fla_sylv_t *cntl) |
FLA_Error FLA_Sylv_tt_blk_var2 | ( | 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_tt().
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_TL ); 00055 00056 FLA_Part_2x2( B, &BTL, &BTR, 00057 &BBL, &BBR, 0, 0, FLA_BR ); 00058 00059 FLA_Part_2x2( C, &CTL, &CTR, 00060 &CBL, &CBR, 0, 0, FLA_TR ); 00061 00062 while ( FLA_Obj_length( ATL ) < FLA_Obj_length( A ) ){ 00063 00064 b = FLA_Determine_blocksize( CBL, FLA_BL, FLA_Cntl_blocksize( cntl ) ); 00065 00066 FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, /**/ &A01, &A02, 00067 /* ************* */ /* ******************** */ 00068 &A10, /**/ &A11, &A12, 00069 ABL, /**/ ABR, &A20, /**/ &A21, &A22, 00070 b, b, FLA_BR ); 00071 00072 FLA_Repart_2x2_to_3x3( BTL, /**/ BTR, &B00, &B01, /**/ &B02, 00073 &B10, &B11, /**/ &B12, 00074 /* ************* */ /* ******************** */ 00075 BBL, /**/ BBR, &B20, &B21, /**/ &B22, 00076 b, b, FLA_TL ); 00077 00078 FLA_Repart_2x2_to_3x3( CTL, /**/ CTR, &C00, &C01, /**/ &C02, 00079 /* ************* */ /* ******************** */ 00080 &C10, &C11, /**/ &C12, 00081 CBL, /**/ CBR, &C20, &C21, /**/ &C22, 00082 b, b, FLA_BL ); 00083 00084 // Loop Invariant: 00085 // CTL = 00086 // CTR = 00087 // CBL = 00088 // CBR = 00089 00090 /*------------------------------------------------------------*/ 00091 00092 // C12 = sylv( A11', B22', C12 ); 00093 FLA_Sylv_internal( FLA_TRANSPOSE, FLA_TRANSPOSE, 00094 isgn, A11, B22, C12, scale, 00095 FLA_Cntl_sub_sylv1( cntl ) ); 00096 00097 // C22 = C22 - A12' * C12; 00098 FLA_Gemm_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 00099 FLA_MINUS_ONE, A12, C12, FLA_ONE, C22, 00100 FLA_Cntl_sub_gemm1( cntl ) ); 00101 00102 // C01 = sylv( A00', B11', C01 -/+ C02 * B12' ); 00103 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_TRANSPOSE, 00104 FLA_NEGATE( isgn ), C02, B12, FLA_ONE, C01, 00105 FLA_Cntl_sub_gemm2( cntl ) ); 00106 00107 FLA_Sylv_internal( FLA_TRANSPOSE, FLA_TRANSPOSE, 00108 isgn, A00, B11, C01, scale, 00109 FLA_Cntl_sub_sylv2( cntl ) ); 00110 00111 // C11 = sylv( A11', B11', C11 - A01' * C01 -/+ C12 * B12' ); 00112 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_TRANSPOSE, 00113 FLA_NEGATE( isgn ), C12, B12, FLA_ONE, C11, 00114 FLA_Cntl_sub_gemm3( cntl ) ); 00115 00116 FLA_Gemm_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 00117 FLA_MINUS_ONE, A01, C01, FLA_ONE, C11, 00118 FLA_Cntl_sub_gemm4( cntl ) ); 00119 00120 FLA_Sylv_internal( FLA_TRANSPOSE, FLA_TRANSPOSE, 00121 isgn, A11, B11, C11, scale, 00122 FLA_Cntl_sub_sylv3( cntl ) ); 00123 00124 // C21 = C21 - A12' * C11 - A02' * C01; 00125 FLA_Gemm_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 00126 FLA_MINUS_ONE, A02, C01, FLA_ONE, C21, 00127 FLA_Cntl_sub_gemm5( cntl ) ); 00128 00129 FLA_Gemm_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 00130 FLA_MINUS_ONE, A12, C11, FLA_ONE, C21, 00131 FLA_Cntl_sub_gemm6( cntl ) ); 00132 00133 /*------------------------------------------------------------*/ 00134 00135 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, A01, /**/ A02, 00136 A10, A11, /**/ A12, 00137 /* ************** */ /* ****************** */ 00138 &ABL, /**/ &ABR, A20, A21, /**/ A22, 00139 FLA_TL ); 00140 00141 FLA_Cont_with_3x3_to_2x2( &BTL, /**/ &BTR, B00, /**/ B01, B02, 00142 /* ************** */ /* ****************** */ 00143 B10, /**/ B11, B12, 00144 &BBL, /**/ &BBR, B20, /**/ B21, B22, 00145 FLA_BR ); 00146 00147 FLA_Cont_with_3x3_to_2x2( &CTL, /**/ &CTR, C00, /**/ C01, C02, 00148 C10, /**/ C11, C12, 00149 /* ************** */ /* ****************** */ 00150 &CBL, /**/ &CBR, C20, /**/ C21, C22, 00151 FLA_TR ); 00152 00153 } 00154 00155 return FLA_SUCCESS; 00156 }