Enabling FD's Pruning methods?

[Nishanth Kumar]

Hi all!

I recently noticed that FD has various pruning methods (documented at http://www.fast-downward.org/Doc/PruningMethod) and am interested in enabling these to see how they perform on some custom-written PDDL domains. However, I can't figure out how to enable any of these when running FD? It doesn't seem like there are any flags that can be passed to './fast-downward.py' to enable these, so I assume some options must be changed during the build process to enable these?

Any pointers or clarifications about how to enable these pruning methods are much appreciated!

[Malte Helmert]

Dear Nishanth,

the pruning method is part of the options for the search component that
are just mentioned generically as "COMPONENT_OPTION ..." in the usage
string that is displayed by "./fast-downward.py --help". Specifically,
the component options always include a specification of the search
algorithm used, and these search algorithms take a pruning method as a
parameter.

It's hard to explain this in a few words. The following pages may be useful:

http://www.fast-downward.org/Doc/SearchEngine
http://www.fast-downward.org/PlannerUsage
http://www.fast-downward.org/OptionSyntax

But it's probably easiest to learn from an existing example. I assume
you have an existing planner configuration to which you would like to
add the pruning option. Can you give us an example configuration (full
./fast-downward.py command-line) without pruning that you would like to
adapt?

Best,
Malte

[Nishanth Kumar]

Hi Malte,

Thanks so much for the swift response. I was able to use an example from the link you posted (http://www.fast-downward.org/Doc/SearchEngine) to understand how to call pruning and it seems to have worked as intended.

Thank you!