#5345: [with patch, positive review] Optimize transpose, antitranspose for dense
matrices
----------------------------+-----------------------------------------------
Reporter: rbeezer | Owner: rbeezer
Type: enhancement | Status: closed
Priority: major | Milestone: sage-3.4
Component: linear algebra | Resolution: fixed
Keywords: transpose |
----------------------------+-----------------------------------------------
Comment(by mvngu):
Replying to [comment:6 ylchapuy]:
> And some statistics:
> {{{
> Before:
>
> sage: m=identity_matrix(3000)
> sage: time m2=m.transpose(); m3=m.antitranspose()
> CPU times: user 14.13 s, sys: 1.11 s, total: 15.44 s
> Wall time: 15.44 s
> sage: get_memory_usage()
> 1254.28125
>
> After:
>
> sage: m=identity_matrix(3000)
> sage: time m2=m.transpose(); m3=m.antitranspose()
> CPU times: user 2.92 s, sys: 0.46 s, total: 3.38 s
> Wall time: 3.38 s
> sage: get_memory_usage()
> 835.6171875
> }}}
Is it possible for you to provide some information on the computer/system
architecture that you used to get the above statistics? The improved
performance is great news and I'll include this in the release tour at
[http://wiki.sagemath.org/sage-3.4]
And it would also be good to have some info about the hardware under which
you arrived at the above statistics.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5345#comment:11>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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