#4302: [with patch, needs work] improve modular composition in GF(2)[x]
------------------------------+---------------------------------------------
Reporter: zimmerma | Owner: somebody
Type: task | Status: new
Priority: major | Milestone: sage-3.2
Component: basic arithmetic | Resolution:
Keywords: |
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Comment (by zimmerma):
In fact with the following benchmark 4302_speedup1.patch gives a speedup
(ModCompPower is defined
above).
Without 4302_speedup1.patch:
{{{
sage: r=132049
sage: time a=ModCompPower(x^r+x+1, r)
100.6397
}}}
With 4302_speedup1.patch:
{{{
sage: time a=ModCompPower(x^r+x+1, r)
82.144512
}}}
With NTL:
{{{
sage: time a=ModCompPower(x^r+x+1, r, algorithm='ntl')
86.219893
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4302#comment:22>
Sage <http://sagemath.org/>
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