done, please review On Sun, Jun 7, 2020 at 7:41 PM Dima Pasechnik <dimp...@gmail.com> wrote: > > will be fixed on https://trac.sagemath.org/ticket/29821 > > On Sun, Jun 7, 2020 at 3:01 PM slelievre <samuel.lelie...@gmail.com> 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 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 > > > called MAXN (defaulting to WORDSIZE), MAXN1 (probably, the number of > > > vertices in one part of the graph, at most 24 or 30, something like > > > this - and this is probably the # of vertices of the hypergraph) > > > > > > It should not be too hard to change, but it would be good to know > > > how exactly. > > > > Brendan McKay asks me to post this on his behalf: > > > > > The nauty makefile has a target genbgL which makes > > > a version allowing up to 30 vertices on the first side > > > and 64 vertices altogether. > > > > > > There are two versions because using 64-bit words > > > gives a tiny inefficiency for small sizes. But this is now > > > quite small (less than 1% usually) so I recommend that > > > sage uses genbgL for everything. > > > > -- > > You received this message because you are subscribed to the Google Groups > > "sage-support" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to sage-support+unsubscr...@googlegroups.com. > > To view this discussion on the web visit > > https://groups.google.com/d/msgid/sage-support/f0cdf1f8-67f8-488b-a2d0-4247bd88fa38o%40googlegroups.com.
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