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Functions | |
FLA_Error | FLA_Sylv_nh_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_nh_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_nh().
{ FLA_Obj ATL, ATR, A00, A01, A02, ABL, ABR, A10, A11, A12, A20, A21, A22; FLA_Obj BTL, BTR, B00, B01, B02, BBL, BBR, B10, B11, B12, B20, B21, B22; FLA_Obj CTL, CTR, C00, C01, C02, CBL, CBR, C10, C11, C12, C20, C21, C22; dim_t b; FLA_Part_2x2( A, &ATL, &ATR, &ABL, &ABR, 0, 0, FLA_BR ); FLA_Part_2x2( B, &BTL, &BTR, &BBL, &BBR, 0, 0, FLA_BR ); FLA_Part_2x2( C, &CTL, &CTR, &CBL, &CBR, 0, 0, FLA_BR ); while ( FLA_Obj_length( ABR ) < FLA_Obj_length( A ) ){ b = FLA_Determine_blocksize( CTL, FLA_TL, FLA_Cntl_blocksize( cntl ) ); FLA_Repart_2x2_to_3x3( ATL, /**/ ATR, &A00, &A01, /**/ &A02, &A10, &A11, /**/ &A12, /* ************* */ /* ******************** */ ABL, /**/ ABR, &A20, &A21, /**/ &A22, b, b, FLA_TL ); FLA_Repart_2x2_to_3x3( BTL, /**/ BTR, &B00, &B01, /**/ &B02, &B10, &B11, /**/ &B12, /* ************* */ /* ******************** */ BBL, /**/ BBR, &B20, &B21, /**/ &B22, b, b, FLA_TL ); FLA_Repart_2x2_to_3x3( CTL, /**/ CTR, &C00, &C01, /**/ &C02, &C10, &C11, /**/ &C12, /* ************* */ /* ******************** */ CBL, /**/ CBR, &C20, &C21, /**/ &C22, b, b, FLA_TL ); // Loop Invariant: // CTL = // CTR = // CBL = // CBR = /*------------------------------------------------------------*/ // C12 = sylv( A11, B22', C12 ); FLA_Sylv_internal( FLA_NO_TRANSPOSE, FLA_CONJ_TRANSPOSE, isgn, A11, B22, C12, scale, FLA_Cntl_sub_sylv1( cntl ) ); // C02 = C02 - A01 * C12; FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, FLA_MINUS_ONE, A01, C12, FLA_ONE, C02, FLA_Cntl_sub_gemm1( cntl ) ); // C21 = sylv( A22, B11', C21 -/+ C22 * B12' ); FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_CONJ_TRANSPOSE, FLA_NEGATE( isgn ), C22, B12, FLA_ONE, C21, FLA_Cntl_sub_gemm2( cntl ) ); FLA_Sylv_internal( FLA_NO_TRANSPOSE, FLA_CONJ_TRANSPOSE, isgn, A22, B11, C21, scale, FLA_Cntl_sub_sylv2( cntl ) ); // C11 = sylv( A11, B11', C11 - A12 * C21 -/+ C12 * B12' ); FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_CONJ_TRANSPOSE, FLA_NEGATE( isgn ), C12, B12, FLA_ONE, C11, FLA_Cntl_sub_gemm3( cntl ) ); FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, FLA_MINUS_ONE, A12, C21, FLA_ONE, C11, FLA_Cntl_sub_gemm4( cntl ) ); FLA_Sylv_internal( FLA_NO_TRANSPOSE, FLA_CONJ_TRANSPOSE, isgn, A11, B11, C11, scale, FLA_Cntl_sub_sylv3( cntl ) ); // C01 = C01 - A01 * C11 - A02 * C21; FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, FLA_MINUS_ONE, A02, C21, FLA_ONE, C01, FLA_Cntl_sub_gemm5( cntl ) ); FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_NO_TRANSPOSE, FLA_MINUS_ONE, A01, C11, FLA_ONE, C01, FLA_Cntl_sub_gemm6( cntl ) ); /*------------------------------------------------------------*/ FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR, A00, /**/ A01, A02, /* ************** */ /* ****************** */ A10, /**/ A11, A12, &ABL, /**/ &ABR, A20, /**/ A21, A22, FLA_BR ); FLA_Cont_with_3x3_to_2x2( &BTL, /**/ &BTR, B00, /**/ B01, B02, /* ************** */ /* ****************** */ B10, /**/ B11, B12, &BBL, /**/ &BBR, B20, /**/ B21, B22, FLA_BR ); FLA_Cont_with_3x3_to_2x2( &CTL, /**/ &CTR, C00, /**/ C01, C02, /* ************** */ /* ****************** */ C10, /**/ C11, C12, &CBL, /**/ &CBR, C20, /**/ C21, C22, FLA_BR ); } return FLA_SUCCESS; }