I'm assuming you've got loads of RAM and swap on your machines. The next
thing to note is that you probably have a 2GB limit on any single process
in Linux (though I've got a feeling you can tune the kernel to increase
that). If your Linux is working correctly it should not be impossible for
a single process to crash the kernel, so you may have a hardware problem
(eg the OS not dealing correctly with ultra-fast RAM) - we have seen that
in certain Linux systems.
In general, on a new PC you should aim to have at least 512MB RAM (>1GB
preferable) and for big analyses you may as well set up at least 6GB swap.
Does this help at all? Cheers, Steve.
On Wed, 5 May 2004, Russ Poldrack wrote:
> Howdy FSLers,
> People in our group have been having substantial problems with larger
> FSL analyses, getting unexpected crashes and sometimes even causing our
> Linux boxes to reboot, which I think is quite a feat! These problems
> seem to be related to RAM exhaustion, so I'm wondering if there is a
> general consensus on how much RAM one generally needs for FSL use,
> particularly for FLAME analyses. Thanks in advance for any advice you
> might have.
> Russell A. Poldrack, Ph.D.
> Assistant Professor of Psychology, UCLA
> Franz Hall, Box 951563
> Los Angeles, CA 90095-1563
> email: [log in to unmask]
> phone: 310.794.1224
> fax: 310.206.5895
> web: http://www.poldracklab.org/
Stephen M. Smith DPhil
Associate Director, FMRIB and Analysis Research Coordinator
Oxford University Centre for Functional MRI of the Brain
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve