[Repast-interest] 64-bit distributions?

[Joshua A. H. <jh...@ci...>]

After having worked with Repast a while, my group is starting to desire 
implementation of a somewhat large-scale model within Repast, and we'd 
like to stick with Simphony for now if we can. Unfortunately, we've been 
running into some limits with the Windows / Mac distributions of Repast 
due to their 64-bit nature - Java can't acquire even 1.6 GB of 
contiguous memory for the heap, let alone 4 GB, and this is becoming a 
limitation for scaling up our present models.  (It's a known issue with 
Java's 32-bit VM... apparently it's related to the way code libraries 
are loaded into the VM.)  I've tried to utilize the steps for Linux 
distributions to get a 64-bit download of Eclipse set up with Repast 
Simphony, but I've been having some significant issues.  The 3.7.1 
update isn't readily available anymore from the main Eclipse site - it's 
3.7.2, and the update manager doesn't have the mentioned "Eclipse XML 
Editors and Tools" and "Groovy language support" options available as 
downloads.  More critically, however, I can't get an actual resource 
list from the http://dist.springsource.org/release/GRECLIPSE/e3.7/ 
<http://dist.springsource.org/release/GRECLIPSE/e3.7/> site in order to 
download the needed prerequisite libraries for Repast - I get exceptions 
instead.

Is there an alternate download site available for some of these 
resources that I'm simply not aware of?  (If so, it might be wise to 
update the Repast site's download information accordingly, by the way.)  
Also, would there be a chance of getting full 64-bit distributions of 
Repast Simphony available on the main site?  My research group uses both 
Windows and Mac operating systems, and then we work with another agency 
from time to time as well... and this may be something that others could 
make good use of.

Thanks!

Joshua A. Horton