On 9/29/2015 4:28 PM, Michael Black wrote:
> What kind of time is it taking now? The overhead of splitting the work can
> kill any advantage as I'm sure you know from the previous multi-threading
> of JT9.
Increasing ntrials from 10^4 to 10^5 increased running time by x 6.4:
about 22 minutes for 1000 decoding attempts, or an average of 1.3 s per
attempt. Most successful decodes very quick, typically less than 0.1 s.
But the failures take a long time, up to 9 s for ntrials=100000 (and
linear in ntrials).
The gain in speed from multi-threading was very significant for
jt9[.exe]. It should be even better for sfrsd, since the task in
question is simple, easy to set up, and almost fully parallelizable.
-- Joe, K1JT
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