Hello, On Jul 24, 11:28 pm, "David Joyner" <[EMAIL PROTECTED]> wrote: > I have no idea. You are posting to the SAGE support list. Please > explain how your problem is SAGE related or post to the correct list. > The macaulay web page is here:http://www.math.uiuc.edu/Macaulay2/ > > +++++++++++++++++++++++++++++++++++++++++++ > > On 7/24/07, Parikshit Dutta <[EMAIL PROTECTED]> wrote: > > > Hi David > > > Thanks for replying. I am running on emacs
Not very helpful, isn't it? David meant operating system, amount of RAM (as in the second email). >> ......... I didnt try SAGE . Will > > SAGE solve my problem? > > > On 7/24/07, David Joyner < [EMAIL PROTECTED]> wrote: > > > I don't know the answer but it might help if you provide more info. > > > > I assume you are running the macaulay2-20061014 package > > > in SAGE? Which version of SAGE? What machine do you have, > > > what OS is it running on, and how much ram does it have? > > > > +++++++++++++++++++++++++++++++++++++++++++++++++++ > > > > On 7/24/07, Manutd <[EMAIL PROTECTED]> wrote: > > > > > I dont know why Macaulay 2 runs out of memory while computing > > > > Elimination Ideal using Groebner Basis. I wanted to eliminate the > > > > variables c and d from the following Ideal > Which term-ordering and which field are you trying to compute this over (DegRevLex + the rational field)? Gröbner Basis computation are notoriously unpredictable regarding RAM and time use, the theorectical upper bound for the complexity Buchberger is "double exponential". Because MacCauly2 complain about "out of memory:exiting" you either ran out of address space on a 32 bit box or you exhausted RAM+Swap. In case you tried this on Windows under cygwin you have another problem because cygwin defaults to half of the memory available to Windows (RAM +Swap). Anyway, you are not using SAGE, so running the same computation under SAGE with MacCauly2 won't help you. MacCauly2 is allegedly not as efficient regarding GBasis computations as Singular or CoCoALib. (This is at least my experience and I have benchmarked all three extensively ;), so I would suggest you run your computation with either one of those. If you send me the missing information I can attempt to run those computations for you. I would suggest that you contact me off list for the details (in case you get this email). <SNIP> > > > > Parikshit Cheers, Michael --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://sage.math.washington.edu/sage/ and http://sage.scipy.org/sage/ -~----------~----~----~----~------~----~------~--~---
