This bounced because of configuration problem on the mail server,
so I'm resending it.
-Christopher
------- Forwarded Message
From: "Stephen Andrew Neuendorffer" <[EMAIL PROTECTED]>
To: Nilgun Fescioglu Unver <[EMAIL PROTECTED]>,
[EMAIL PROTECTED],
[EMAIL PROTECTED]
Subject: [Ptolemy] Re: memory problem
Date: Wed, 31 Mar 2004 08:55:16 -0800
The culprit is apparently the Display actor, which internally uses
a JTextArea, which is a known memory hog:
A quick google search turns up:
>I can't believe this exists in Swing, but I've found
>that when I loaded a 2MB file into JTextArea it
>creates literally 394,000+ java.lang.ref.Finalizer
>objects that hang around event after the JTextArea is
>released. What's worse is my memory usage spikes to
>65MB! That's 30 times the size of the text string! I
>don't know what java.lang.ref.Finalizer object is, or
>why it gets created.
After 6000 iterations, that's roughly 1.3 MB of text....
At 01:26 PM 3/30/2004 -0800, Nilgun Fescioglu Unver wrote:
>Hi,
>
>Sorry if you received this message for the second
>time..
>
>I have a java.lang.OutOfMemory error problem with my
>model developed in Ptolemy II version 3.0.2.
>
>I am working on a model which uses an ArrayToken (of
>180 tokens) and my actors change the value of the
>tokens in each iteration. As tokens are immutable I am
>creating new tokens in each iteration. During the run
>time after several iterations the system stops with an
>error java.lang.OutOfMemory. I thought some problem
>with garbage collection is creating the problem so I
>tried calling System.gc at the end of fire() function
>in my actors but there was no change in the number of
>iterations before getting the error.
>
>I tried to generate the same problem with the actors
>of Ptolemy and created a simple model using the
>ArrayExtract actor (the xml file is attached) and ran
>into the same problem after several iterations (6143
>iterations on a computer with 512MB Ram, Windows XP
>operating system, java version 1.4.2 ).
>
>Could you help me to find out the reason of this
>problem? And how can I continue the simulation without
>running out of memory?
>
>Thanks,
>Nilgun Fescioglu Unver
>
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