I believe there are memory (and time?) limitations for each user on sagenb, so a tough GB calculation would likely get stopped.
Seems strange that just defining the ideal would take that long. -M. Hampton On Feb 6, 1:35 pm, Martin Albrecht <m...@informatik.uni-bremen.de> wrote: > > PolyBoRi is automatically used by Sage for GB computations? > > If you construct a BooleanPolynomialRing. See > > http://www.sagemath.org/hg/sage-main/file/b0aa7ef45b3c/sage/rings/pol... > > > On the other hand I calculated my new ideal and I wonder why it takes > > so long for SAGE to evaluate just the ideal and not to compute the GB. > > As I said in my previous posts, I only introduced the ideal, pressed > > evaluate, waited all night long and nothing. So I didn't even got in > > to the GB computation phase. > > > Is this normal? > > No, it should be instant. I assume you're talking about the call > > B.ideal([x1*x2 + ..., x2 + ..., ...]) ? > > > And another last question: should I use SAGE via web or installe it on > > my system? Which one do you think is faster? Does it matter? > > If you run a potentially large calculation it is better *not* to use the > public notebook: > * the public notebook is for evaluating Sage and not for serious research. > * it might put a strain on the system which would be not nice for the other > users of the public notebook > * there is no guarantee that the server won't be rebooted while your > calculation is running > * there is no guarantee that your data is preserved, although we try. > > Cheers, > Martin > > -- > name: Martin Albrecht > _pgp:http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x8EF0DC99 > _otr: 47F43D1A 5D68C36F 468BAEBA 640E8856 D7951CCF > _www:http://www.informatik.uni-bremen.de/~malb > _jab: martinralbre...@jabber.ccc.de --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
