Functions | |
FLA_Error | FLA_Sylv_tn_blk_var3 (FLA_Obj isgn, FLA_Obj A, FLA_Obj B, FLA_Obj C, FLA_Obj scale, fla_sylv_t *cntl) |
FLA_Error FLA_Sylv_tn_blk_var3 | ( | 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_tn().
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_TL ); 00058 00059 FLA_Part_2x2( C, &CTL, &CTR, 00060 &CBL, &CBR, 0, 0, FLA_TL ); 00061 00062 while ( FLA_Obj_length( ATL ) < FLA_Obj_length( A ) ){ 00063 00064 b = FLA_Determine_blocksize( CBR, FLA_BR, 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 /* ************* */ /* ******************** */ 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 /* ************* */ /* ******************** */ 00080 &C10, /**/ &C11, &C12, 00081 CBL, /**/ CBR, &C20, /**/ &C21, &C22, 00082 b, b, FLA_BR ); 00083 00084 // Loop Invariant: 00085 // CTL = sylv( ATL', BTL, CTL ) 00086 // CTR = CTR 00087 // CBL = sylv( ABR', BTL, CBL - ATR' * sylv( ATL', BTL, CTL ) ) 00088 // CBR = CBR 00089 00090 /*------------------------------------------------------------*/ 00091 00092 // C01 = sylv( A00', B11, C01 -/+ C00 * B01 ); 00093 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00094 FLA_NEGATE( isgn ), C00, B01, FLA_ONE, C01, 00095 FLA_Cntl_sub_gemm1( cntl ) ); 00096 00097 FLA_Sylv_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 00098 isgn, A00, B11, C01, scale, 00099 FLA_Cntl_sub_sylv1( cntl ) ); 00100 00101 // C11 = sylv( A11', B11, C11 - A01' * C01 -/+ C10 * B01 ); 00102 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00103 FLA_NEGATE( isgn ), C10, B01, FLA_ONE, C11, 00104 FLA_Cntl_sub_gemm2( cntl ) ); 00105 00106 FLA_Gemm_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 00107 FLA_MINUS_ONE, A01, C01, FLA_ONE, C11, 00108 FLA_Cntl_sub_gemm3( cntl ) ); 00109 00110 FLA_Sylv_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 00111 isgn, A11, B11, C11, scale, 00112 FLA_Cntl_sub_sylv2( cntl ) ); 00113 00114 // C21 = sylv( A22', B11, C21 - A12' * C11 - A02' * C01 -/+ C20 * B01 ); 00115 FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, 00116 FLA_NEGATE( isgn ), C20, B01, FLA_ONE, C21, 00117 FLA_Cntl_sub_gemm4( cntl ) ); 00118 00119 FLA_Gemm_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 00120 FLA_MINUS_ONE, A02, C01, FLA_ONE, C21, 00121 FLA_Cntl_sub_gemm5( cntl ) ); 00122 00123 FLA_Gemm_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 00124 FLA_MINUS_ONE, A12, C11, FLA_ONE, C21, 00125 FLA_Cntl_sub_gemm6( cntl ) ); 00126 00127 FLA_Sylv_internal( FLA_TRANSPOSE, FLA_NO_TRANSPOSE, 00128 isgn, A22, B11, C21, scale, 00129 FLA_Cntl_sub_sylv3( cntl ) ); 00130 00131 /*------------------------------------------------------------*/ 00132 00133 FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, A01, /**/ A02, 00134 A10, A11, /**/ A12, 00135 /* ************** */ /* ****************** */ 00136 &ABL, /**/ &ABR, A20, A21, /**/ A22, 00137 FLA_TL ); 00138 00139 FLA_Cont_with_3x3_to_2x2( &BTL, /**/ &BTR, B00, B01, /**/ B02, 00140 B10, B11, /**/ B12, 00141 /* ************** */ /* ****************** */ 00142 &BBL, /**/ &BBR, B20, B21, /**/ B22, 00143 FLA_TL ); 00144 00145 FLA_Cont_with_3x3_to_2x2( &CTL, /**/ &CTR, C00, C01, /**/ C02, 00146 C10, C11, /**/ C12, 00147 /* ************** */ /* ****************** */ 00148 &CBL, /**/ &CBR, C20, C21, /**/ C22, 00149 FLA_TL ); 00150 00151 } 00152 00153 return FLA_SUCCESS; 00154 }