On Tue, Aug 11, 2009 at 10:39 AM, Viny<hje...@hotmail.com> wrote: > > The system has 3 equations and 100 points. In my program i compute a > symbolic expression of the hessian. Is there a debugger in sage? Does > it work like gdb?
Yes, since about Sage 2.8.2, according to this: http://sagetrac.org/sage_trac/ticket/371 > > On 11 août, 16:04, David Joyner <wdjoy...@gmail.com> wrote: >> One option is to try to use the ode.pyx wrapper to the gsl >> libraryhttp://hg.sagemath.org/sage-main/file/285a89ed5dc7/sage/gsl/ode.pyx#l1 >> Another is to try to precompute the hessian and pass it into your >> program as an argument. This way your program does not call >> maxima (assuming that is the cause of your problem). >> >> How big is the system? >> >> On Tue, Aug 11, 2009 at 8:53 AM, Viny<hje...@hotmail.com> wrote: >> >> > Hello, >> >> > I'm a beginner in python and sage. I'm trying to solve a system of ODE >> > by the newton method with python by sage. But i have a problem of >> > memory with Lisp or Maxima when the hessian matrix is calculated. The >> > process doesn't use the whole 12 giga RAM memory of my 64bits linux >> > system and crash with this message error: >> >> > Maxima ERROR: >> >> > kill(sage297)$(%i2196) kill(sage290)$batchload("/.sage//temp/14907// >> > interface//tmp14907-827495505");1+140260649; >> >> > <sage-display><sage-display><sage-display>GC Warning: Out of Memory! >> > Returning NIL! >> >> > Maxima encountered a Lisp error: >> >> > Memory limit reached. Please jump to an outer point or quit program. >> >> > Automatically continuing. >> > To reenable the Lisp debugger set *debugger-hook* to nil. >> > <sage-display> >> > (%o2199) >> > sage: >> > Exiting SAGE (CPU time 1m15.04s, Wall time 5m48.08s). >> > Exiting spawned Maxima process. >> >> > I have installed sage for linux 64bits system. Someone can help me? >> >> > Thankx > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
