[Discuss-gnuradio] SIMD optimizations on FIR filters

[Sérgio Rui Silva]

I'm using to kinds of FIR filters in my program: SCC and FFF.
When I start my program I get the message:

>>> gr_fir_SCC: using 3DNow!Ext

but I don't get the message: >>> gr_fir_FFF: using "something".
Does this mean that the FIR FFF filter is not using any of the
available SIMD optimizations? From what I saw in the code I
should be getting such message. 

Is it preferable to use 3DNow!Ext or 3DNow! instead of SSE?
(benchmark_dotprod seems to point to that...)

Sérgio Rui Silva

P.S.: I'm running a dual Athlon MP 2400+ processor system and
the functions has_3dnow() and has_sse() return true...
 

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