MingwInstallMain

GNU Radio
1

Hi,

I’ve got a question for the MinGW users / wiki editors.

I notice that in http://gnuradio.org/trac/wiki/MingwInstallMain
it says to use the --with-md-cpu=generic configure option.

Why are you specifying this option?

If you do, you’ll lose all the SIMD speedups.

Eric

2

I’ve got a question for the MinGW users / wiki editors.

I notice that in http://gnuradio.org/trac/wiki/MingwInstallMain
it says to use the --with-md-cpu=generic configure option.

Why are you specifying this option?

If you do, you’ll lose all the SIMD speedups.

This comes from the recommendations in an older web page (reference not
handy). I haven’t found it necessary but haven’t known what its impact
is.

The MinGW install page is still a work in progress. Comments and
suggestions are greatly appreciated; feel free to send them directly to
Patrick M. [email protected] and myself (Don W.
[email protected]) if you prefer.

3

Eric,

I’m working with Don W. to edit that wiki page. One of my starting
points
was Martin’s notes at
http://www.olifantasia.com/projects/gnuradio/mdvh/mingw/binary/readme.mingw.
In that readme file, he says:

use --with-md-cpu=generic:
the optimized fir code doesn’t compile on my mingw/gcc setup so use
the
generic code. Maybe you are lucky or know how to fix this, please let
me
know.

This option is also specified in the README-win32-mingw-short.txt file
at
http://gnuradio.org/trac/browser/gnuradio/trunk, and at the old wiki
page at
http://www.comsec.com/wiki?Cygwin.

I simply followed this advice; I didn’t try to enable optimization.
Would
you like me to specify a different option for ./configure, and rebuild
gnuradio?

Patrick M.