#13447: Make libsingular multivariate polynomial rings collectable
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Reporter: nbruin | Owner: rlm
Type: defect | Status: new
Priority: major | Milestone:
sage-5.4
Component: memleak | Resolution:
Keywords: | Work issues:
Report Upstream: Reported upstream. No feedback yet. | Reviewers:
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by nbruin):
Replying to [comment:6 SimonKing]:
> I am not sure if changing to malloc is an acceptable option for
Singular.
I am sure it is not acceptable for production, but being able to swap out
omalloc for debugging can be a very useful. That's why I tried. I
understand that there are great tools to do memory management and omalloc
puts them all out of play because it hides all memory alloc/free activity.
It seems omalloc has its own tools but I wasn't able to get them working,
I've seen indications that they don't work on 64 bits, and there's a good
chance they're not as good as the general ones because they're for a
smaller market.
I'm sure someone more familiar with the Singular and omalloc code bases
can make a more informed decision on whether having the option of straight
malloc memory management for debugging is worthwhile. My initial finding
is that it quite likely can be done with relatively small modifications. I
got it to more or less work in an evening, while being unfamiliar with the
code.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/13447#comment:7>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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