FLA_Ttmm_l_blk_var3.c File Reference

(r)


Functions

FLA_Error FLA_Ttmm_l_blk_var3 (FLA_Obj A, fla_ttmm_t *cntl)

Function Documentation

FLA_Error FLA_Ttmm_l_blk_var3 ( FLA_Obj  A,
fla_ttmm_t cntl 
)

References FLA_Cont_with_3x3_to_2x2(), FLA_Determine_blocksize(), FLA_Herk_internal(), FLA_Obj_is_real(), FLA_Obj_length(), FLA_ONE, FLA_Part_2x2(), FLA_Repart_2x2_to_3x3(), FLA_Syrk_internal(), FLA_Trmm_internal(), and FLA_Ttmm_internal().

Referenced by FLA_Ttmm_l().

00038 {
00039   FLA_Obj ATL,   ATR,      A00, A01, A02, 
00040           ABL,   ABR,      A10, A11, A12,
00041                            A20, A21, A22;
00042 
00043   dim_t b;
00044 
00045   FLA_Part_2x2( A,    &ATL, &ATR,
00046                       &ABL, &ABR,     0, 0, FLA_TL );
00047 
00048   while ( FLA_Obj_length( ATL ) < FLA_Obj_length( A ) ){
00049 
00050     b = FLA_Determine_blocksize( ABR, FLA_BR, FLA_Cntl_blocksize( cntl ) );
00051 
00052     FLA_Repart_2x2_to_3x3( ATL, /**/ ATR,       &A00, /**/ &A01, &A02,
00053                         /* ************* */   /* ******************** */
00054                                                 &A10, /**/ &A11, &A12,
00055                            ABL, /**/ ABR,       &A20, /**/ &A21, &A22,
00056                            b, b, FLA_BR );
00057 
00058     /*------------------------------------------------------------*/
00059 
00060     if ( FLA_Obj_is_real( A ) )
00061     {
00062       /* A11 = tril( A11 )' * tril( A11 ); */
00063       FLA_Ttmm_internal( FLA_LOWER_TRIANGULAR, A11,
00064                          FLA_Cntl_sub_ttmm( cntl ) );
00065 
00066       /* A11 = A11 + A21' * A21; */
00067       FLA_Syrk_internal( FLA_LOWER_TRIANGULAR, FLA_TRANSPOSE,
00068                          FLA_ONE, A21, FLA_ONE, A11,
00069                          FLA_Cntl_sub_syrk( cntl ) );
00070 
00071       /* A21 = tril( A22 )' * A21; */
00072       FLA_Trmm_internal( FLA_LEFT, FLA_LOWER_TRIANGULAR, FLA_TRANSPOSE, FLA_NONUNIT_DIAG,
00073                          FLA_ONE, A22, A21,
00074                          FLA_Cntl_sub_trmm( cntl ) );
00075     }
00076     else
00077     {
00078       /* A11 = tril( A11 )' * tril( A11 ); */
00079       FLA_Ttmm_internal( FLA_LOWER_TRIANGULAR, A11,
00080                          FLA_Cntl_sub_ttmm( cntl ) );
00081 
00082       /* A11 = A11 + A21' * A21; */
00083       FLA_Herk_internal( FLA_LOWER_TRIANGULAR, FLA_CONJ_TRANSPOSE,
00084                          FLA_ONE, A21, FLA_ONE, A11,
00085                          FLA_Cntl_sub_herk( cntl ) );
00086 
00087       /* A21 = tril( A22 )' * A21; */
00088       FLA_Trmm_internal( FLA_LEFT, FLA_LOWER_TRIANGULAR, FLA_CONJ_TRANSPOSE, FLA_NONUNIT_DIAG,
00089                          FLA_ONE, A22, A21,
00090                          FLA_Cntl_sub_trmm( cntl ) );
00091     }
00092 
00093     /*------------------------------------------------------------*/
00094 
00095     FLA_Cont_with_3x3_to_2x2( &ATL, /**/ &ATR,       A00, A01, /**/ A02,
00096                                                      A10, A11, /**/ A12,
00097                             /* ************** */  /* ****************** */
00098                               &ABL, /**/ &ABR,       A20, A21, /**/ A22,
00099                               FLA_TL );
00100 
00101   }
00102 
00103   return FLA_SUCCESS;
00104 }


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