Bob,
let me be 100% sure of what you are saying:
the comparison you are referring to was between
Phil Karn's native code in ANSI-C
and
Phil Karn's native code ported in Gnuradio ?
Thanks
Achilleas
Robert W McGwier wrote:
Yes. I was comparing Phil Karn's native code to it and it runs at least
20 times faster.
Bob
Achilleas Anastasopoulos wrote:
I have noticed a huge speed dissadvantage when comparing my
ANSI-C implementation of a Viterbi decoder with my Gnuradio
implementation. The core code is pretty much the same, except
that in the Gnuradio implementation I am using STL vectors.
It seems that Gnuradio is about 20 times SLOWER than ANSI-C!!!
I was wondering if this has to do with Gnuradio itself (buffering +
python + other fat), or with the fact that I had to translate all
my ANCI-C code to C++ and use STL.
Does anyone have similar experiences?
Achilleas
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Achilleas Anastasopoulos
Associate Professor
EECS Department Voice : (734)615-4024
UNIVERSITY OF MICHIGAN Fax : (734)763-8041
Ann Arbor, MI 48109-2122 E-mail: [EMAIL PROTECTED]
URL: http://www-personal.engin.umich.edu/~anastas/
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