Re: [sage-support] nauty/genbg apparently hitting 32-bit limit, failing silently

2020-06-07 Thread Dima Pasechnik
done, please review On Sun, Jun 7, 2020 at 7:41 PM Dima Pasechnik wrote: > > will be fixed on https://trac.sagemath.org/ticket/29821 > > On Sun, Jun 7, 2020 at 3:01 PM slelievre wrote: > > > > Le samedi 6 juin 2020 22:53:13 UTC+2, Dima Pasechnik a écrit : > > > > > > The code in question calls n

Re: [sage-support] nauty/genbg apparently hitting 32-bit limit, failing silently

2020-06-07 Thread Dima Pasechnik
will be fixed on https://trac.sagemath.org/ticket/29821 On Sun, Jun 7, 2020 at 3:01 PM slelievre wrote: > > Le samedi 6 juin 2020 22:53:13 UTC+2, Dima Pasechnik a écrit : > > > > The code in question calls nauty's genbg program, and hypergraphs are > > encoded as vertex-(hyper)edge incidence grap

Re: [sage-support] nauty/genbg apparently hitting 32-bit limit, failing silently

2020-06-07 Thread slelievre
Le samedi 6 juin 2020 22:53:13 UTC+2, Dima Pasechnik a écrit : > > The code in question calls nauty's genbg program, and hypergraphs are > encoded as vertex-(hyper)edge incidence graphs. It seem that one needs > to read its source code (e.g. here: > https://github.com/lonnen/nauty/blob/nauty27/g

Re: [sage-support] nauty/genbg apparently hitting 32-bit limit, failing silently

2020-06-06 Thread Dima Pasechnik
The code in question calls nauty's genbg program, and hypergraphs are encoded as vertex-(hyper)edge incidence graphs. It seem that one needs to read its source code (e.g. here: https://github.com/lonnen/nauty/blob/nauty27/genbg.c) to understand how the limits are controlled, there are parameters ca

[sage-support] nauty/genbg apparently hitting 32-bit limit, failing silently

2020-06-05 Thread Andrew Juell
As I discovered on CoCalc running Sage 9.1, it appears that any attempt to use nauty/genbg to build bipartite/hyper-/di- graphs with more than 32 total vertices fails silently. Please compare the results of: - L=list(hypergraphs.nauty(13, 13, uniform=2, regular=2,max_intersection=1)) for

[sage-support] nauty/genbg apparently hitting 32-bit limit, failing silently

2020-06-05 Thread Andrew Juell
As I discovered on CoCalc running Sage 9.1, it appears that any attempt to use nauty/genbg to build bipartite/hyper-/di- graphs with more than 32 total vertices fails silently. Please compare the results of: - L=list(hypergraphs.nauty(13, 13, uniform=2, regular=2,max_intersection=1)) for