[Newbies] Failure to load large Squeak .image files

[Andrew Coward]

I am using Squeak 3.8.18 on  Mac OSX with 2 Gbyte RAM to model large 
numbers of complex neurons. With all the neuron instances the Squeak 
image size can sometimes get well above 500 Mbytes. Up to image sizes 
of 500 Mbyte everything works fine.

The problem is that for images of 550 Mbyte, the image continues to run 
and I can save it, but if I try to start Squeak with a 550 Mbyte image, 
the image desktop and windows appear for a few seconds, then Squeak 
quits.

I have tried starting Squeak with the large image on a different Mac 
and the same thing happens. The problem occurs even if it is 
immediately after rebooting the Mac, with no other applications 
running.

Is this a bug, or are there Squeak image size limits and if so what are 
they and what generates them. Does anyone have any suggestions how to 
get around the problem?

Thanks

Andrew

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