I tried to reproduce the problem with a small callable library program (using polymake 2.12) but it computes the volume just fine. Can you post the code which constructs your polytope ? You can also increase the verbosity of the scheduler and rule-execution with the following commands and attach the...

You can try compiling polymake using your system perl 5.16 with the patch from this other thread . Your perl installation might be missing the libperl.so shared library, you can try rebuilding perl with sh Configure -Duseshrplib or disable building the libpolymake shared library with ./configure --w...

Attached patch contains all changes to adapt polymake 2.12 for perl 5.16. I tested it successfully with perl v5.16.2.

Ben

The gfan rules are within application fan and therefore you need to switch to that application before reconfiguring or using the secondary_fan function: Ben

The callable library is working since version 2.10 and included in a default installation. The documentation is here . There are also slides and an example program using the callable library in the material section from the first polymake workshop: http://www.polymake.org/doku.php/workshop0311-mater...

The matrix specification is somewhat wrong (a mix between sparse and dense formats):
There should be no attribute for a non-sparse matrix (and the value is also wrong). After removing this attribute the file loads fine.

Benjamin

That should not be necessary.
I just installed the list of packages recommended for 11.10 on the installation page, configure went fine and it is compiling without any errors so far. (ubuntu 12.04 64bit desktop live cd)
Perhaps you are missing g++ . Only gcc is installed by default.

Hi, Before you use anything from the callable library you need to initialize polymake::Main; and set the correct application. In your case you need to add the following lines to the beginning of main : Main pm; pm.set_application("polytope"); Furthermore LP.MAXIMAL_FACE has type Set<int> :...

Now I take the facets from this output, which are a inequality description of the polytope, and create a polytope with that description: The facets do not suffice to describe the polytope, as it is not full-dimensional. You also need the subspace that contains the polytope, which is given in the AF...

The Prerequisites section of http://polymake.org/doku.php/tutorial/lattice_polytopes_tutorial seems to be out of date. Looks to me like the new polymake version does fine without any of those additional packages. There are still several lattice properties that cannot be computed without external so...