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How is your memory consumption?
I can make AB crash on a regular basis if I set AB's
internal cache so high that AB uses more memory than the
physical RAM I have. In my case when AB gets up to using
2.1 GB of memory (ie, about 600 MB of Virtual memory since
I have just 1.5 GB of physical RAM), then AB usually
crashes.
My solution is just to set AB's internal cache size (number
of stocks to hold in cache) to a lower number.
b
--- kw_odonian <kw_odonian@xxxxxxxxx> wrote:
> Thanks - that's actually good to know that long runs are
> the norm.
> I'm getting a little further - I noticed that AB would
> always crash
> on a certain symbol, so I removed that symbol, and it can
> now run much
> longer but it still crashes after 50 optimization steps
> in, say, a 250
> combination run.
>
> I'm still hoping someone else has seen such problems and
> can suggest a
> fix, but thanks for the knowledge that very long runs
> should be OK.
>
> kw
>
> --- In amibroker@xxxxxxxxxxxxxxx, "Chuck Rademacher"
> <chuck_rademacher@x> wrote:
> > kw,
> >
> > I hate to say it, but your backtest is actually not
> very lengthy.
> I'm not
> > having problems optimizing 5 parameters, 1,000
> combinations, 19,000
> symbols
> > over ten years of data. Must be something other than
> the size of
> the run.
>
>
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