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.

Mike W9MDB

On Tue, Sep 29, 2015 at 2:16 PM, Joe Taylor <j...@princeton.edu> wrote:

> Hi all,
>
> Some further information on the new Reed Solomon decoder.
>
> A simple timing measurement shows that for test program "rsdtest" 97% of
> the execution time is spent in the Berlekamp-Massey
> errors-and-erasures decoder.
>
> This is good.  It means that if/when we decide more speed is desirable,
> it should be easy to get it.  For an N-CPU machines, N-1 parallel
> threads can be used to execute the randomized-erasures loop.
>
> Extending the number of trials from 10^4 to 10^5 increases the number of
> decodes from 837 to 880.  Still no false decodes.
>
> I posted a plot here
> http://physics.princeton.edu/pulsar/K1JT/decodes_vs_ntrials.pdf
> showing the cumulative number of decodes (out of 1000 simulated data
> sets) as a function of ntrials.
>
>         -- Joe, K1JT
>
>
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