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Functions | |
FLA_Error | FLA_Herk_uh_unb_var4 (FLA_Obj alpha, FLA_Obj A, FLA_Obj beta, FLA_Obj C) |
References FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x3_to_2x2(), FLA_Dotcs_external(), FLA_Gemv_external(), FLA_Obj_width(), FLA_ONE, FLA_Part_1x2(), FLA_Part_2x2(), FLA_Repart_1x2_to_1x3(), FLA_Repart_2x2_to_3x3(), and FLA_Scalr_external().
Referenced by FLA_Herk_uh().
{ FLA_Obj AL, AR, A0, a1, A2; FLA_Obj CTL, CTR, C00, c01, C02, CBL, CBR, c10t, gamma11, c12t, C20, c21, C22; FLA_Scalr_external( FLA_UPPER_TRIANGULAR, beta, C ); FLA_Part_1x2( A, &AL, &AR, 0, FLA_RIGHT ); FLA_Part_2x2( C, &CTL, &CTR, &CBL, &CBR, 0, 0, FLA_BR ); while ( FLA_Obj_width( AR ) < FLA_Obj_width( A ) ){ FLA_Repart_1x2_to_1x3( AL, /**/ AR, &A0, &a1, /**/ &A2, 1, FLA_LEFT ); FLA_Repart_2x2_to_3x3( CTL, /**/ CTR, &C00, &c01, /**/ &C02, &c10t, &gamma11, /**/ &c12t, /* ************* */ /* ************************** */ CBL, /**/ CBR, &C20, &c21, /**/ &C22, 1, 1, FLA_TL ); /*------------------------------------------------------------*/ /* c01 = c01 + A0' * a1 */ FLA_Gemv_external( FLA_CONJ_TRANSPOSE, alpha, A0, a1, FLA_ONE, c01 ); /* gamma11 = gamma11 + a1 * a1' */ FLA_Dotcs_external( FLA_CONJUGATE, alpha, a1, a1, FLA_ONE, gamma11 ); /*------------------------------------------------------------*/ FLA_Cont_with_1x3_to_1x2( &AL, /**/ &AR, A0, /**/ a1, A2, FLA_RIGHT ); FLA_Cont_with_3x3_to_2x2( &CTL, /**/ &CTR, C00, /**/ c01, C02, /* ************** */ /* ************************ */ c10t, /**/ gamma11, c12t, &CBL, /**/ &CBR, C20, /**/ c21, C22, FLA_BR ); } return FLA_SUCCESS; }