#6199: Integer * int is slow
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Reporter: fredrik.johansson | Owner: somebody
Type: defect | Status: closed
Priority: major | Milestone: sage-duplicate/invalid/wontfix
Component: basic arithmetic | Resolution: wontfix
Keywords: | Author:
Upstream: N/A | Reviewer:
Merged: | Work_issues:
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Changes (by craigcitro):
* status: new => closed
* upstream: => N/A
* resolution: => wontfix
* milestone: => sage-duplicate/invalid/wontfix
Comment:
So sadly, I think this is a wontfix. I tested this out, and at the expense
of some ugly code, we get roughly a factor of 2 speedup -- and that's
basically the best we can do. The problem is that the coercion model needs
to look up a cached map to avoid the coercion to `Integer`; looking up
this map and calling it takes long enough that a factor of 2 is the best
we can get.
Fredrik, did you have code that was getting slowed down by this? Would a
factor of two on this make a big difference for you?
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6199#comment:3>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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