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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;
}
1.7.6.1