It sounds as if you are running the transformation from within Ant. As a
first step, I would try seeing if you can get it to run from the command
line. That will tell you whether the problem is specific to the Ant
environment - it eliminates one of the possible causes.

Saxon does have the ability to process the source document in streaming mode
which will reduce memory requirements (see

http://www.saxonica.com/documentation/sourcedocs/serial.html

), but frankly, 20Mb shouldn't be a problem.

If it's still failing you need to tell us more precisely what you are doing
and more precisely how it failed.

"my computer crashes" sounds pretty drastic - running out of memory does not
normally cause your computer to crash.

Michael Kay
http://www.saxonica.com/ 

> -----Original Message-----
> From: Marijan (Mario) Madunic [mailto:hajduk@xxxxxxxx] 
> Sent: 20 November 2008 16:11
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  Issue with large XML doc and crashes
> 
> (Using Saxon9 on WindowsXP, dual core 6400, 3.25gigs ram)
> 
> The doc I'm working with is 20megs+ and it is being parsed 
> using a for-each statement, while being inserted into a main 
> doc. (What is happening is more than likely a memory issue, 
> as my computer crashes during the transform; I've figured it 
> out to be more than half done when this happens.) I have my 
> ANT_OPTS set the following: set ANT_OPTS="-Xmx1272m"
> 
> But my question concerning XSLT is. Is there a function that 
> discards the current node from memory once it has been 
> parsed. Or am I way off base here. Want to look up this 
> avenue before doing a reinstall of Java and ANT and delve 
> deeper into if the issue is something in my OS.
> 
> Thanks
> 
> Marijan (Mario) Madunic