On Tue, Jan 06, 2009 at 06:58:47PM -0500, Marcus D. Leech wrote: > Let's say, for the sake of interesting discussion, that I have access to > a beastly multi-CPU 'puter, perhaps based on the > latest Xeon 7460 series CPUs, and a quad-socket server, giving me 24 > CPUs, and 48 threads. > > I'm interested in wideband, high-sensitivity, high-resolution spectroscopy. > > I envisage a scheme where one thread gathers an FFT-frame worth of data > (let's say from an USRP2), and doles it out to one > of a number of other threads that are doing FFTs on these frames of > data. All the outputs of the FFT threads are averaged > together to produce a result that is then time averaged. > > The existing FFT display schemes in Gnu Radio use a "keep-one-in-n" > scheme for the FFTs, which means that sensitivity > is necessarily lost, due to the spectrum being under-sampled in the > time domain. > > Is there existing plumbing to be able to try this sort of thing? [On a > smaller scale--I don't actually have such a monster server > at my disposal at the moment!!]. >
Is this an SMP machine, or a cluster? If SMP, it'll "just work". If it's a cluster, you'll need to figure out how to partition separate instantiations of GR on each node. Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
