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Functions | |
FLA_Error | FLA_Hess_UT (FLA_Obj A, FLA_Obj T) |
FLA_Error | FLA_Hess_UT_internal (FLA_Obj A, FLA_Obj T, fla_hessut_t *cntl) |
FLA_Error | FLA_Hess_UT_create_T (FLA_Obj A, FLA_Obj *T) |
FLA_Error | FLA_Hess_UT_recover_tau (FLA_Obj T, FLA_Obj t) |
FLA_Error FLA_Hess_UT | ( | FLA_Obj | A, |
FLA_Obj | T | ||
) |
References FLA_Check_error_level(), FLA_Hess_UT_check(), and FLA_Hess_UT_internal().
{ FLA_Error r_val; // Check parameters. if ( FLA_Check_error_level() >= FLA_MIN_ERROR_CHECKING ) FLA_Hess_UT_check( A, T ); // Invoke FLA_Hess_UT_internal() with the standard control tree. r_val = FLA_Hess_UT_internal( A, T, fla_hessut_cntl_leaf ); return r_val; }
FLA_Error FLA_Hess_UT_create_T | ( | FLA_Obj | A, |
FLA_Obj * | T | ||
) |
References FLA_Obj_create(), FLA_Obj_datatype(), FLA_Obj_min_dim(), FLA_Obj_row_stride(), and FLA_Query_blocksize().
{ FLA_Datatype datatype; dim_t b_alg, k; dim_t rs_T, cs_T; // Query the datatype of A. datatype = FLA_Obj_datatype( A ); // Query the blocksize from the library. b_alg = FLA_Query_blocksize( datatype, FLA_DIMENSION_MIN ); // Scale the blocksize by a pre-set global constant. b_alg = ( dim_t )( ( ( double ) b_alg ) * FLA_HESS_INNER_TO_OUTER_B_RATIO ); // Query the minimum dimension of A. k = FLA_Obj_min_dim( A ); // Figure out whether T should be row-major or column-major. if ( FLA_Obj_row_stride( A ) == 1 ) { rs_T = 1; cs_T = b_alg; } else // if ( FLA_Obj_col_stride( A ) == 1 ) { rs_T = k; cs_T = 1; } // Create a b_alg x k matrix to hold the block Householder transforms that // will be accumulated within the Hessenberg reduction algorithm. FLA_Obj_create( datatype, b_alg, k, rs_T, cs_T, T ); return FLA_SUCCESS; }
FLA_Error FLA_Hess_UT_internal | ( | FLA_Obj | A, |
FLA_Obj | T, | ||
fla_hessut_t * | cntl | ||
) |
References FLA_Check_error_level(), FLA_Hess_UT_blf_var2(), FLA_Hess_UT_blf_var3(), FLA_Hess_UT_blf_var4(), FLA_Hess_UT_blk_var1(), FLA_Hess_UT_blk_var2(), FLA_Hess_UT_blk_var3(), FLA_Hess_UT_blk_var4(), FLA_Hess_UT_blk_var5(), FLA_Hess_UT_internal_check(), FLA_Hess_UT_opt_var1(), FLA_Hess_UT_opt_var2(), FLA_Hess_UT_opt_var3(), FLA_Hess_UT_opt_var4(), FLA_Hess_UT_opt_var5(), FLA_Hess_UT_unb_var1(), FLA_Hess_UT_unb_var2(), FLA_Hess_UT_unb_var3(), FLA_Hess_UT_unb_var4(), and FLA_Hess_UT_unb_var5().
Referenced by FLA_Hess_UT().
{ FLA_Error r_val = FLA_SUCCESS; if ( FLA_Check_error_level() == FLA_FULL_ERROR_CHECKING ) FLA_Hess_UT_internal_check( A, T, cntl ); { if ( FLA_Cntl_variant( cntl ) == FLA_UNBLOCKED_VARIANT1 ) { r_val = FLA_Hess_UT_unb_var1( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_UNBLOCKED_VARIANT2 ) { r_val = FLA_Hess_UT_unb_var2( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_UNBLOCKED_VARIANT3 ) { r_val = FLA_Hess_UT_unb_var3( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_UNBLOCKED_VARIANT4 ) { r_val = FLA_Hess_UT_unb_var4( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_UNBLOCKED_VARIANT5 ) { r_val = FLA_Hess_UT_unb_var5( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_UNB_OPT_VARIANT1 ) { r_val = FLA_Hess_UT_opt_var1( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_UNB_OPT_VARIANT2 ) { r_val = FLA_Hess_UT_opt_var2( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_UNB_OPT_VARIANT3 ) { r_val = FLA_Hess_UT_opt_var3( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_UNB_OPT_VARIANT4 ) { r_val = FLA_Hess_UT_opt_var4( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_UNB_OPT_VARIANT5 ) { r_val = FLA_Hess_UT_opt_var5( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_BLOCKED_VARIANT1 ) { r_val = FLA_Hess_UT_blk_var1( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_BLOCKED_VARIANT2 ) { r_val = FLA_Hess_UT_blk_var2( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_BLOCKED_VARIANT3 ) { r_val = FLA_Hess_UT_blk_var3( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_BLOCKED_VARIANT4 ) { r_val = FLA_Hess_UT_blk_var4( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_BLOCKED_VARIANT5 ) { r_val = FLA_Hess_UT_blk_var5( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_BLK_FUS_VARIANT2 ) { r_val = FLA_Hess_UT_blf_var2( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_BLK_FUS_VARIANT3 ) { r_val = FLA_Hess_UT_blf_var3( A, T ); } else if ( FLA_Cntl_variant( cntl ) == FLA_BLK_FUS_VARIANT4 ) { r_val = FLA_Hess_UT_blf_var4( A, T ); } else { FLA_Check_error_code( FLA_NOT_YET_IMPLEMENTED ); } } return r_val; }
FLA_Error FLA_Hess_UT_recover_tau | ( | FLA_Obj | T, |
FLA_Obj | t | ||
) |
References FLA_Check_error_level(), FLA_Cont_with_1x3_to_1x2(), FLA_Cont_with_3x1_to_2x1(), FLA_Hess_UT_recover_tau_check(), FLA_Hess_UT_recover_tau_submatrix(), FLA_Obj_length(), FLA_Part_1x2(), FLA_Part_2x1(), FLA_Repart_1x2_to_1x3(), and FLA_Repart_2x1_to_3x1().
{ FLA_Obj TL, TR, T0, T1, T2; FLA_Obj tT, t0, tB, t1, t2; dim_t b_alg, b; if ( FLA_Check_error_level() >= FLA_MIN_ERROR_CHECKING ) FLA_Hess_UT_recover_tau_check( T, t ); b_alg = FLA_Obj_length( T ); FLA_Part_1x2( T, &TL, &TR, 0, FLA_LEFT ); FLA_Part_2x1( t, &tT, &tB, 0, FLA_TOP ); while ( FLA_Obj_length( tT ) < FLA_Obj_length( t ) ){ b = min( FLA_Obj_length( tB ), b_alg ); FLA_Repart_1x2_to_1x3( TL, /**/ TR, &T0, /**/ &T1, &T2, b, FLA_RIGHT ); FLA_Repart_2x1_to_3x1( tT, &t0, /* ** */ /* ** */ &t1, tB, &t2, b, FLA_BOTTOM ); /*------------------------------------------------------------*/ FLA_Hess_UT_recover_tau_submatrix( T1, t1 ); /*------------------------------------------------------------*/ FLA_Cont_with_1x3_to_1x2( &TL, /**/ &TR, T0, T1, /**/ T2, FLA_LEFT ); FLA_Cont_with_3x1_to_2x1( &tT, t0, t1, /* ** */ /* ** */ &tB, t2, FLA_TOP ); } return FLA_SUCCESS; }