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by polymake_rulez44
13 Dec 2019, 20:58
Forum: General Discussion
Topic: Enumerating all integer feasible points, CPLEX vs Polymake
Replies: 19
Views: 54736

Re: Enumerating all integer feasible points, CPLEX vs Polymake

polymake does not use ppl in the floating-point mode yet, rather for rational numbers only. There was simply no demand for that, until you came across :) So if you want to use ppl with floats, you should indeed run it standalone,as Thomas proposes. I have no idea why ppl_lcdd was not built on your ...
by polymake_rulez44
11 Dec 2019, 09:40
Forum: Helpdesk
Topic: From V-representation to H-representation
Replies: 1
Views: 6906

From V-representation to H-representation

I want to compute the inequality description from the V-representation of a polyhedron and then test if the matrix is TU. From the examples i was able to arrive at this code. What is missing is the step ??? from computing the inequalities to populating the inequalities section of the polytop. So how...
by polymake_rulez44
10 Dec 2019, 17:15
Forum: Helpdesk
Topic: Error while using nmz
Replies: 3
Views: 5229

Re: Error while using nmz

yes i want to use nmz. in my personal script i wrote prefer "nmz"; is this not correct? how can i tell polymake to use the nmz algorithm? i think the error comes from that the algorithm is not called "nmz" (instead i need to say "normaliz", but in the paper where the al...
by polymake_rulez44
09 Dec 2019, 23:04
Forum: Helpdesk
Topic: Error while using nmz
Replies: 3
Views: 5229

Error while using nmz

polymake: WARNING: stored preference statements for label nmz are not in effect - probably excluded by auto-configuration polymake: used package ppl The Parma Polyhedra Library (PPL): A C++ library for convex polyhedra and other numerical abstractions. http://www.cs.unipr.it/ppl/ What should you do,...
by polymake_rulez44
09 Dec 2019, 13:33
Forum: Helpdesk
Topic: Progress while computing H-representation
Replies: 3
Views: 5930

Re: Progress while computing H-representation

Thank you very much for your answer.

If you have an server with multiple cores (like 20), which algorithm can make use of this? Where do i find information on this?
by polymake_rulez44
05 Dec 2019, 16:58
Forum: Helpdesk
Topic: Progress while computing H-representation
Replies: 3
Views: 5930

Progress while computing H-representation

1. When i calculate the H-representation from the V-representation,
can i get some output from polymake on the progress, while it is computing to estimate how long it takes?

2. What is the fastest method of the available algorithms for doing this?

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