FLA_Her2k_uh_blk_var10.c File Reference

(r)


Functions

FLA_Error FLA_Her2k_uh_blk_var10 (FLA_Obj alpha, FLA_Obj A, FLA_Obj B, FLA_Obj beta, FLA_Obj C, fla_her2k_t *cntl)

Function Documentation

FLA_Error FLA_Her2k_uh_blk_var10 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  B,
FLA_Obj  beta,
FLA_Obj  C,
fla_her2k_t cntl 
)

References FLA_Cont_with_3x1_to_2x1(), FLA_Determine_blocksize(), FLA_Her2k_internal(), FLA_Obj_length(), FLA_Part_2x1(), and FLA_Repart_2x1_to_3x1().

Referenced by FLA_Her2k_uh().

00038 {
00039   FLA_Obj AT,              A0,
00040           AB,              A1,
00041                            A2;
00042 
00043   FLA_Obj BT,              B0,
00044           BB,              B1,
00045                            B2;
00046 
00047   dim_t b;
00048 
00049   FLA_Part_2x1( A,    &AT, 
00050                       &AB,            0, FLA_BOTTOM );
00051 
00052   FLA_Part_2x1( B,    &BT, 
00053                       &BB,            0, FLA_BOTTOM );
00054 
00055   while ( FLA_Obj_length( AB ) < FLA_Obj_length( A ) ){
00056 
00057     b = FLA_Determine_blocksize( AT, FLA_TOP, FLA_Cntl_blocksize( cntl ) );
00058 
00059     FLA_Repart_2x1_to_3x1( AT,                &A0, 
00060                                               &A1, 
00061                         /* ** */            /* ** */
00062                            AB,                &A2,        b, FLA_TOP );
00063 
00064     FLA_Repart_2x1_to_3x1( BT,                &B0, 
00065                                               &B1, 
00066                         /* ** */            /* ** */
00067                            BB,                &B2,        b, FLA_TOP );
00068 
00069     /*------------------------------------------------------------*/
00070 
00071     /* C = C + A1' * B1 + B1' * A1 */
00072     FLA_Her2k_internal( FLA_UPPER_TRIANGULAR, FLA_CONJ_TRANSPOSE, 
00073                         alpha, A1, B1, beta, C,
00074                         FLA_Cntl_sub_her2k( cntl ) );
00075 
00076     /*------------------------------------------------------------*/
00077 
00078     FLA_Cont_with_3x1_to_2x1( &AT,                A0, 
00079                             /* ** */           /* ** */
00080                                                   A1, 
00081                               &AB,                A2,     FLA_BOTTOM );
00082 
00083     FLA_Cont_with_3x1_to_2x1( &BT,                B0, 
00084                             /* ** */           /* ** */
00085                                                   B1, 
00086                               &BB,                B2,     FLA_BOTTOM );
00087 
00088   }
00089 
00090   return FLA_SUCCESS;
00091 }


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