FLA_Her2k_ln_blk_var3.c File Reference

(r)


Functions

FLA_Error FLA_Her2k_ln_blk_var3 (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_ln_blk_var3 ( 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_Cont_with_3x3_to_2x2(), FLA_Determine_blocksize(), FLA_Gemm_internal(), FLA_Her2k_internal(), FLA_Obj_length(), FLA_ONE, FLA_Part_2x1(), FLA_Part_2x2(), FLA_Repart_2x1_to_3x1(), and FLA_Repart_2x2_to_3x3().

Referenced by FLA_Her2k_ln().

00036 {
00037   FLA_Obj AT,              A0,
00038           AB,              A1,
00039                            A2;
00040 
00041   FLA_Obj BT,              B0,
00042           BB,              B1,
00043                            B2;
00044 
00045   FLA_Obj CTL,   CTR,      C00, C01, C02, 
00046           CBL,   CBR,      C10, C11, C12,
00047                            C20, C21, C22;
00048 
00049   dim_t b;
00050 
00051   FLA_Part_2x1( A,    &AT, 
00052                       &AB,            0, FLA_TOP );
00053 
00054   FLA_Part_2x1( B,    &BT, 
00055                       &BB,            0, FLA_TOP );
00056 
00057   FLA_Part_2x2( C,    &CTL, &CTR,
00058                       &CBL, &CBR,     0, 0, FLA_TL );
00059 
00060   while ( FLA_Obj_length( AT ) < FLA_Obj_length( A ) ){
00061 
00062     b = FLA_Determine_blocksize( AB, FLA_BOTTOM, FLA_Cntl_blocksize( cntl ) );
00063 
00064     FLA_Repart_2x1_to_3x1( AT,                &A0, 
00065                         /* ** */            /* ** */
00066                                               &A1, 
00067                            AB,                &A2,        b, FLA_BOTTOM );
00068 
00069     FLA_Repart_2x1_to_3x1( BT,                &B0, 
00070                         /* ** */            /* ** */
00071                                               &B1, 
00072                            BB,                &B2,        b, FLA_BOTTOM );
00073 
00074     FLA_Repart_2x2_to_3x3( CTL, /**/ CTR,       &C00, /**/ &C01, &C02,
00075                         /* ************* */   /* ******************** */
00076                                                 &C10, /**/ &C11, &C12,
00077                            CBL, /**/ CBR,       &C20, /**/ &C21, &C22,
00078                            b, b, FLA_BR );
00079 
00080     /*------------------------------------------------------------*/
00081 
00082     /* C10 = C10 + A1 * B0' */
00083     FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_CONJ_TRANSPOSE, 
00084                        alpha, A1, B0, beta, C10,
00085                        FLA_Cntl_sub_gemm1( cntl ) );
00086 
00087     /* C21 = C21 + B2 * A1' */
00088     FLA_Gemm_internal( FLA_NO_TRANSPOSE, FLA_CONJ_TRANSPOSE, 
00089                        alpha, B2, A1, FLA_ONE, C21,
00090                        FLA_Cntl_sub_gemm2( cntl ) );
00091 
00092     /* C11 = C11 + A1 * B1' + B1 * A1' */
00093     FLA_Her2k_internal( FLA_LOWER_TRIANGULAR, FLA_NO_TRANSPOSE, 
00094                         alpha, A1, B1, beta, C11,
00095                         FLA_Cntl_sub_her2k( cntl ) );
00096 
00097     /*------------------------------------------------------------*/
00098 
00099     FLA_Cont_with_3x1_to_2x1( &AT,                A0, 
00100                                                   A1, 
00101                             /* ** */           /* ** */
00102                               &AB,                A2,     FLA_TOP );
00103 
00104     FLA_Cont_with_3x1_to_2x1( &BT,                B0, 
00105                                                   B1, 
00106                             /* ** */           /* ** */
00107                               &BB,                B2,     FLA_TOP );
00108 
00109     FLA_Cont_with_3x3_to_2x2( &CTL, /**/ &CTR,       C00, C01, /**/ C02,
00110                                                      C10, C11, /**/ C12,
00111                             /* ************** */  /* ****************** */
00112                               &CBL, /**/ &CBR,       C20, C21, /**/ C22,
00113                               FLA_TL );
00114 
00115   }
00116 
00117   return FLA_SUCCESS;
00118 }


Generated on Mon Jul 6 05:45:54 2009 for libflame by  doxygen 1.5.9