unexplainable memory limit in ImageJ64

Posted by Robert Dougherty on Sep 09, 2008; 9:46pm
URL: http://imagej.273.s1.nabble.com/unexplainable-memory-limit-in-ImageJ64-tp3692745.html

Dear ImageJ people,

I'm getting <Out of memory> errors at 653 MB in ImageJ64, regardless  
of the amount of memory assigned in Options/Memory & Threads.  The  
patient is a MacBook Pro with 4 GB of memory running OS X 10.5.2.  
ImageJ version 1.4.1k, Java version 1.4.2_16.  It does not seem to  
matter how I get to 653 MB: the same thing happens with a complicated  
plugin or just opening the mri-stack sample and scaling it up.  The  
memory monitor shows only 35% used, or so. The problem is specific to  
ImageJ64.  The 32-bit version of ImageJ works fine.  I suspected a  
hardware problem because the memory expansion from 2 GB to 4 GB  
included breaking the little clips that retain the cards.  (The proper  
way to disengage the clips is to spread them horizontally, not pry  
them up...) However, an extended hardware test revealed no problems.  
Any ideas?  Another ImageJ64 puzzle is that Quicktime works on one  
MacBook pro, but not a seemingly identical other one when running  
ImageJ64.  It works on both machines with regular ImageJ.

Bob


Robert Dougherty, Ph.D.
President, OptiNav, Inc.
10900 NE 8th St, Suite 900
Bellevue, WA 98004
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