Hi Bill and all,
Tests here suggest that r4929 produces a Windows jt9_omp.exe that runs
correctly. At least, it runs to completion on my sequence of 25 test
files -- which r4928 does not.
Timing results on a 4-core Win7 machine:
Params jt9 jt9_omp
--------------------------
-w 2 -m 1 25.5 s 21.1 s
-w 2 -m 2 24.9 21.0
When using OpenMP to run JT9 and JT65 decoders in parallel, we gain
almost nothing by using multi-threading for the FFTW plans.
Note that decoder.f90 now decodes the two modes in parallel sections
*ONLY* if txmode is JT9. I will fix this.
I may also look for additional places where concurrent processing could
help performance... but I don't consider this a very high priority.
-- Joe
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