#4768: magma -- speed up conversion of integer, rational and modn matrices from
sage to magma
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Reporter: was | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-3.2.2
Component: interfaces | Resolution:
Keywords: |
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Comment (by was):
Here is a before and after over ZZ:
BEFORE:
{{{
sage: v = random_matrix(ZZ,1000)
sage: time k = magma(v)
CPU times: user 17.03 s, sys: 0.43 s, total: 17.47 s
Wall time: 18.88 s
}}}
AFTER:
{{{
sage: m = random_matrix(ZZ,1000,x=0,y=17)
sage: time w = magma(m)
CPU times: user 0.18 s, sys: 0.10 s, total: 0.28 s
Wall time: 1.68 s
}}}
Here is a before/after over the rational numbers:
BEFORE:
{{{
sage: m = random_matrix(QQ,1000)
sage: time k = magma(m)
CPU times: user 9.41 s, sys: 0.39 s, total: 9.80 s
Wall time: 11.60 s
}}}
AFTER:
{{{
ge: m = random_matrix(QQ,1000)
sage: time k = magma(m)
CPU times: user 0.48 s, sys: 0.16 s, total: 0.64 s
Wall time: 1.16 s
}}}
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/4768#comment:2>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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