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Re: [Discuss-gnuradio] The coming deluge of CPU cycles

From: mgray
Subject: Re: [Discuss-gnuradio] The coming deluge of CPU cycles
Date: Wed, 26 Jul 2006 11:01:44 -0700 (MST)

I'd vote for Gigabit Ethernet as an interface.  It offers the following:

1. Place the USRP very close to the antenna.

2. Distribute the signal to multiple computers. (Multi-cast IP)

3. Very low cost infrastructure of Ethernet switches and cables.

4. Ethernet is easier to use across common platforms like
Windoze/Linux/Embedded systems.

On Wed, 26 Jul 2006, Marcus Leech wrote:

> So, I read yesterday that Intel is going to start introducing quad-core 
> CPUs sometime late this
>  year, rather than 2007 as originally announced.
> Two questions occur to me:
>     o How can we best take advantage of the multiple CPU cores in Gnu Radio?
>        Being able to process larger bandwidths and "do stuff" with that 
> bandwidth
>        would seem to be a good goal.   Like implementing a CDMA/GSM/whatever
>        basestation RF processor all inside Gnu Radio, for example.  [Me, 
> I just want to
>        be able to process radio astronomy data at higher bandwidths :-)].
>     o Is it time to think about moving away from USB for USRP?  Perhaps to
>        PCI-X 2.0, or PCI-Express?

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