FLA_Symm_ru_unb_var9.c File Reference

(r)


Functions

FLA_Error FLA_Symm_ru_unb_var9 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C)

Function Documentation

FLA_Error FLA_Symm_ru_unb_var9 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
FLA_Obj  beta,
FLA_Obj  C 
)

References FLA_Cont_with_3x1_to_2x1(), FLA_Obj_length(), FLA_Part_2x1(), FLA_Repart_2x1_to_3x1(), and FLA_Symv_external().

00038 {
00039   FLA_Obj BT,              B0,
00040           BB,              b1t,
00041                            B2;
00042 
00043   FLA_Obj CT,              C0,
00044           CB,              c1t,
00045                            C2;
00046 
00047 
00048   FLA_Part_2x1( B,    &BT, 
00049                       &BB,            0, FLA_TOP );
00050 
00051   FLA_Part_2x1( C,    &CT, 
00052                       &CB,            0, FLA_TOP );
00053 
00054   while ( FLA_Obj_length( BT ) < FLA_Obj_length( B ) ){
00055 
00056 
00057     FLA_Repart_2x1_to_3x1( BT,                &B0, 
00058                         /* ** */            /* ** */
00059                                               &b1t, 
00060                            BB,                &B2,        1, FLA_BOTTOM );
00061 
00062     FLA_Repart_2x1_to_3x1( CT,                &C0, 
00063                         /* ** */            /* ** */
00064                                               &c1t, 
00065                            CB,                &C2,        1, FLA_BOTTOM );
00066 
00067     /*------------------------------------------------------------*/
00068 
00069     /* c1t  = c1t  + b1t * A    */
00070     /* c1t' = c1t' + A'  * b1t' */
00071     FLA_Symv_external( FLA_UPPER_TRIANGULAR, alpha, A, b1t, beta, c1t );
00072 
00073     /*------------------------------------------------------------*/
00074 
00075     FLA_Cont_with_3x1_to_2x1( &BT,                B0, 
00076                                                   b1t, 
00077                             /* ** */           /* ** */
00078                               &BB,                B2,     FLA_TOP );
00079 
00080     FLA_Cont_with_3x1_to_2x1( &CT,                C0, 
00081                                                   c1t, 
00082                             /* ** */           /* ** */
00083                               &CB,                C2,     FLA_TOP );
00084 
00085   }
00086 
00087   return FLA_SUCCESS;
00088 }


Generated on Mon Jul 6 05:45:55 2009 for libflame by  doxygen 1.5.9