[Trilinos-Users] ML options unused

[Nico Schlömer]

Hi,

now here's once more strange behavior in the latest Trilinos:

We're using the ML preconditioner here within NOX (but I guess it shouldn't 
make a bit difference where it's used), and tell ML to do something like

============== *snip* ==============
 lsParams.set("Preconditioner", "ML");
  Teuchos::ParameterList& MLParams = lsParams.sublist("ML");
  MLParams.set("ML output"                    , 10 );
  MLParams.set("smoother: sweeps"             , 0 );
  MLParams.set("coarse: max size"             , 70000);
  MLParams.set("coarse: type"             , "Amesos-KLU");
============== *snip* ==============

>From what the output of a run suggests

============== *snip* ==============
         coarse: max size = 70000   [unused]
         aggregation: smoothing sweeps = 0   [unused]
         coarse: max size = 70000   [unused]
         coarse: type = Amesos-KLU   [unused]
         smoother: sweeps = 0   [unused]
============== *snap* ==============

you'd think that you misspelled the option keys or something like that, at 
least that the options aren't used. When looking at ML's output (generated by  
setting "ML output" to 10), what you can see is

============== *snip* ==============
[...]
** Leaving column map of Main linear system matrix unchanged
[...]
Max coarse size = 70000
[...]
Amesos (level 0) : Building KLU
[...]
============== *snap* ==============

Now, what, are they used or not?

Cheers,
Nico