FLA_Herk_lh_blk_var6.c File Reference

(r)


Functions

FLA_Error FLA_Herk_lh_blk_var6 (FLA_Obj alpha, FLA_Obj A, FLA_Obj beta, FLA_Obj C, fla_herk_t *cntl)

Function Documentation

FLA_Error FLA_Herk_lh_blk_var6 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  beta,
FLA_Obj  C,
fla_herk_t cntl 
)

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

Referenced by FLA_Herk_lh().

00038 {
00039   FLA_Obj AT,              A0,
00040           AB,              A1,
00041                            A2;
00042 
00043   dim_t b;
00044 
00045   FLA_Part_2x1( A,    &AT, 
00046                       &AB,            0, FLA_BOTTOM );
00047 
00048   while ( FLA_Obj_length( AB ) < FLA_Obj_length( A ) ){
00049 
00050     b = FLA_Determine_blocksize( AT, FLA_TOP, FLA_Cntl_blocksize( cntl ) );
00051 
00052     FLA_Repart_2x1_to_3x1( AT,                &A0, 
00053                                               &A1, 
00054                         /* ** */            /* ** */
00055                            AB,                &A2,        b, FLA_TOP );
00056 
00057     /*------------------------------------------------------------*/
00058 
00059     /* C = C + A1' * A1 */
00060     FLA_Herk_internal( FLA_LOWER_TRIANGULAR, FLA_CONJ_TRANSPOSE, 
00061                        alpha, A1, beta, C,
00062                        FLA_Cntl_sub_herk( cntl ) );
00063 
00064     /*------------------------------------------------------------*/
00065 
00066     FLA_Cont_with_3x1_to_2x1( &AT,                A0, 
00067                             /* ** */           /* ** */
00068                                                   A1, 
00069                               &AB,                A2,     FLA_BOTTOM );
00070 
00071   }
00072 
00073   return FLA_SUCCESS;
00074 }


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