#6772: increase default ecl memory limits for maxima+ecl in sage
---------------------------+------------------------------------------------
Reporter: was | Owner: mabshoff
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.3
Component: packages | Keywords:
Work_issues: | Author:
Reviewer: | Merged:
---------------------------+------------------------------------------------
Comment(by was):
Replying to [comment:4 nbruin]:
> Replying to [comment:3 was]:
> > The above appears to make the heap unlimited.
>
> Someone should check how Boehm decides if it should extend
> the heap area or try to reclaim garbage and reuse memory.
> A side-effect of removing a limit could be that ECL just
> keeps allocating more memory until everything is used up,
> before garbage collecting. Other processes might not like that too much.
That would be really annoying. There's only one program I know that is
that annoying -- PARI. Fortunately, that does not seem to be what happens
here.
I tried the following while watching top:
{{{
sage: maxima._eval_line(":lisp (ext:set-limit 'ext:heap-size
100000000000)",wait_for_prompt=False)
sage: sage: a = maxima(10)^(10^5)
sage: sage: b = a^600
sage: sage: b = a^600
sage: sage: b = a^600
sage: sage: b = a^600
sage: sage: b = a^600
sage: sage: b = a^600
sage: sage: b = a^600
sage: sage: b = a^600
sage: sage: b = a^600
}}}
The memory usage initially goes up from 50MB to 415MB, but then stays at
415MB ever after.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6772#comment:5>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"sage-trac" group.
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-trac?hl=en
-~----------~----~----~----~------~----~------~--~---
