Hi - Yes it can be quite easy for optimizations to use up all memory and
basically lock up your computer or generate an exception. I found that if I
started using smaller opts and then gradually increased the size until it
locked up I could get a pretty good idea of the upper "step limit" for
running future opts without overdoing it. There is also the 3GB switch,
you can probably get details on that by searching the posts in this group
although if you only have 2G to begin with I don't know if that could help
you.
Funny you should mention this because I was just thinking the other day, TJ
has implemented "column hiding" in AA but I believe the stats for the hidden
columns are still calculated and saved in memory. If this could be enhanced
so that only visible columns are calculated, it would seem that would allow
the opts to run faster while also using less memory to store the results. So
we could run both faster and larger opts? Perhaps *much* faster and larger
if we only wanted to see a few columns? Anyone have any thoughts? Thanks!
Steve
----- Original Message -----
From: "melaleu...@sbcglobal.net" <blues...@sbcglobal.net>
To: <amibroker@yahoogroups.com>
Sent: Tuesday, October 13, 2009 2:20 PM
Subject: [amibroker] Ram Jam after optimization problem
> After running a long, multi symbol optimization, TaskManager shows
> broker.exe using 1.2 Gb or more of Ram.
>
> Problem one is that the optimization report, although usable, cannot be
> saved with 'Export' or 'Select/Copy'. I push the 'Export' button and
> usually it blinks, but no Export dialog appears. Copy doesn't copy.
>
> In addition, afterwards, I can't clear the Ram and the computer is
> basically useless; redrawing windows a little at a time, etc.
>
> My only recourse is to restart the computer.
>
> Ram would be the answer, but the computer is maxed out at 2Gb.
>
> DuoCore Dell Laptop, XP, 2GB Ram (maxed out)
>
> ??
> Balin
>
>
>
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