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Re: Odd behavior of time-domain convolutions
From: |
David Bateman |
Subject: |
Re: Odd behavior of time-domain convolutions |
Date: |
Wed, 05 Sep 2007 22:11:34 +0200 |
User-agent: |
Thunderbird 1.5.0.7 (X11/20060921) |
John W. Eaton wrote:
> On 5-Sep-2007, Quentin Spencer wrote:
>
> | I've used the wrapper
> | approach before where the only difference was the interface code, and
> | even then the mex code was a little faster, but not by the large margins
> | you are observing.
>
> I'm surprised by that becuase I think more work has to be done to set
> up and recover from calling a function with the MEX interface. Also,
> in some cases copies of the data passed to and from a MEX file are
> required when no copy is needed with the .oct file interface.
>
> jwe
I suspect Quentin meant a mex-file interface with matlab and an oct-file
interface with Octave, since the start of the thread was a comparison of
Octave and Matlab speed for a compiled function.
Cheers
D.