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Dear all,

I'm running ECJ on a macbook with OSX Lion (10.7.2), 8GB ram and Java 1.6.0_29.
I have noticed that my app (a GA for evolving decision-tree parameters/components) crashes when running in large datasets (I get a "Invalid memory access of location" error). This is a bit strange because when I set the JVM to run in 32-bit mode (-d32) or in interpretable mode (-Xint) the GA works fine (though MUCH slower than 64bits normal mode).

Do you have any idea of what seems to be the problem? I don't think it's a hardware problem since I tested it on other computer and got the same error message (though it was also a computer running OSX). Perhaps there's a bug in memory management of OSX and 64bits JVM in applications running several threads??

Thank you in advance!

--
Rodrigo Coelho Barros, MSc.
PhD Student
Bioinspired Computation Laboratory (BioCom)
Department of Computer Science
University of São Paulo at São Carlos (ICMC-USP)

www.icmc.usp.br/~rcbarros
e-mail (1): [log in to unmask]
e-mail (2): [log in to unmask]

mobile: +55 16 8138-3627