Bob McGwier wrote:
And GPU's are going to become commodity priced quickly and possibly even move
into the GPP and replace older ways of doing floating point. With Nvidia CUDA,
you can write code for your GPP, call GPU with intrinsics to get pretty quick
payback while a better longer term strategy is worked on.
The future of really hard to program heterogeneous/not symmetric multiple core
processors, irrespective of how great the bandwidth is, I don't think is
looking all that rosy. It simply cannot take months and months to get speed to
make the processor pay or the cost per flop, when ALL COSTS are amortized
(expensive people, etc.) begins to look bad.
Bob
Hello,
I bought the earlier version of the motherboard with just the 10/100
ethernet. I put it in a MI-100 case and it is a nice little system. I
have not gotten a chance to use it with GNURadio much so I have not
commented about it on the list. I am thinking of using it as a car
computer.
However, I have tried it under Windows XP with my AutumnWave OnAir GT
USB HDTV tuner. I understand this tuner uses the computer to decode the
HDTV signal. On my older Thinkpad z60t (1.73 GHz Pentium M) the HDTV
decode takes about 80% CPU and there are ocassional gliches. I was not
happy. With the Intel Atom (1.60 GHz), the HDTV decode takes about 40%
CPU and decode is excellent. I suspect the hyperthreading feature of
the CPU is causing the improved decoding.
I recently bought a Acer Aspire One (Intel Atom and 120GB HD) on sale.
I plan to put Linux on it and see how it works with GNURadio and the
USRP. I feel the advantage of the Intel Atom is reasonable performance
in a small package. The Atom-based netbook may be useful for dealing
with ham and conventional narrow-bandwidth signals in a portable/mobile
SDR package.
The 945 chipset is power hungry but I heard there is another chipset for
the Atom in the works. Hopefully the new chipset will allow using the
GPU for SDR work.
73 Eric
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