FLA_Syrk_lt_blk_var5.c File Reference

(r)


Functions

FLA_Error FLA_Syrk_lt_blk_var5 (FLA_Obj alpha, FLA_Obj A, FLA_Obj beta, FLA_Obj C, fla_syrk_t *cntl)

Function Documentation

FLA_Error FLA_Syrk_lt_blk_var5 ( FLA_Obj  alpha,
FLA_Obj  A,
FLA_Obj  beta,
FLA_Obj  C,
fla_syrk_t cntl 
)

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

Referenced by FLA_Syrk_lt().

00036 {
00037   FLA_Obj AT,              A0,
00038           AB,              A1,
00039                            A2;
00040 
00041   dim_t b;
00042 
00043   FLA_Part_2x1( A,    &AT, 
00044                       &AB,            0, FLA_TOP );
00045 
00046   while ( FLA_Obj_length( AT ) < FLA_Obj_length( A ) ){
00047 
00048     b = FLA_Determine_blocksize( AB, FLA_BOTTOM, FLA_Cntl_blocksize( cntl ) );
00049 
00050     FLA_Repart_2x1_to_3x1( AT,                &A0, 
00051                         /* ** */            /* ** */
00052                                               &A1, 
00053                            AB,                &A2,        b, FLA_BOTTOM );
00054 
00055     /*------------------------------------------------------------*/
00056 
00057     /* C = C + A1' * A1 */
00058     FLA_Syrk_internal( FLA_LOWER_TRIANGULAR, FLA_TRANSPOSE, 
00059                        alpha, A1, beta, C,
00060                        FLA_Cntl_sub_syrk( cntl ) );
00061 
00062     /*------------------------------------------------------------*/
00063 
00064     FLA_Cont_with_3x1_to_2x1( &AT,                A0, 
00065                                                   A1, 
00066                             /* ** */           /* ** */
00067                               &AB,                A2,     FLA_TOP );
00068 
00069   }
00070 
00071   return FLA_SUCCESS;
00072 }


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