http://imagej.273.s1.nabble.com/unexplainable-memory-limit-in-ImageJ64-tp3692745p3692748.html
Mbytes. This has bitten me before with Matlab, so I assume it is the same
> Wayne Rasband wrote:
> >
> > On Sep 9, 2008, at 5:46 PM, Robert Dougherty wrote:
> >
> >> 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?
> >
> > ImageJ64 requires Java 1.5 or later, Mac OS X 10.5 and a 64-bit Intel
> > processor. Java 1.6, which is 64-bit only, is available via Software
> > Update, although it is is not made the default version of Java. To
> > make it the default, switch to "Java SE 6 (64-bit)" in /Applications/
> > Utilities/Java/Java Preferences.
> >
> >> 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.
> >
> > QuickTime for Java is not 64-bit compatible. The machine it is
> > working on is probably running 32-bit Java and the other one is
> > probably running 64-bit Java. The title of the Edit>Options>Memory &
> > Threads dialog box changes to "Memory (64-bit)" when ImageJ is
> > running on a 64-bit version of Java.
> >
> > -wayne
> >
> >
>
> I get a similar <Out of Memory> error at around 640MB regardless of the
> Memory setting, like the original poster, except I'm running 64-bit
> Java--1.6.0_12. In "About ImageJ..." the last line says 465MB of 3000MB
> (15%). The title of the Edit>Options>Memory is "Memory (64-bit)". I tried
> rebooting and updating to the latest ImageJ 1.42m to no avail. I'm running
> 64-bit Vista w/ 4GB of RAM, no other programs open.
> --
> View this message in context:
>
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