Functions | |
FLA_Error | FLA_Herk_lh_unb_var3 (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().
00038 { 00039 FLA_Obj AL, AR, A0, a1, A2; 00040 00041 FLA_Obj CTL, CTR, C00, c01, C02, 00042 CBL, CBR, c10t, gamma11, c12t, 00043 C20, c21, C22; 00044 00045 FLA_Scalr_external( FLA_LOWER_TRIANGULAR, beta, C ); 00046 00047 FLA_Part_1x2( A, &AL, &AR, 0, FLA_RIGHT ); 00048 00049 FLA_Part_2x2( C, &CTL, &CTR, 00050 &CBL, &CBR, 0, 0, FLA_BR ); 00051 00052 while ( FLA_Obj_width( AR ) < FLA_Obj_width( A ) ){ 00053 00054 FLA_Repart_1x2_to_1x3( AL, /**/ AR, &A0, &a1, /**/ &A2, 00055 1, FLA_LEFT ); 00056 00057 FLA_Repart_2x2_to_3x3( CTL, /**/ CTR, &C00, &c01, /**/ &C02, 00058 &c10t, &gamma11, /**/ &c12t, 00059 /* ************* */ /* ************************** */ 00060 CBL, /**/ CBR, &C20, &c21, /**/ &C22, 00061 1, 1, FLA_TL ); 00062 00063 /*------------------------------------------------------------*/ 00064 00065 /* c21 = c21 + A2' * a1 */ 00066 FLA_Gemv_external( FLA_CONJ_TRANSPOSE, alpha, A2, a1, FLA_ONE, c21 ); 00067 00068 /* gamma11 = gamma11 + a1' * a1 */ 00069 FLA_Dotcs_external( FLA_CONJUGATE, alpha, a1, a1, FLA_ONE, gamma11 ); 00070 00071 /*------------------------------------------------------------*/ 00072 00073 FLA_Cont_with_1x3_to_1x2( &AL, /**/ &AR, A0, /**/ a1, A2, 00074 FLA_RIGHT ); 00075 00076 FLA_Cont_with_3x3_to_2x2( &CTL, /**/ &CTR, C00, /**/ c01, C02, 00077 /* ************** */ /* ************************ */ 00078 c10t, /**/ gamma11, c12t, 00079 &CBL, /**/ &CBR, C20, /**/ c21, C22, 00080 FLA_BR ); 00081 00082 } 00083 00084 return FLA_SUCCESS; 00085 }