[Getdp] Out of memory error message

[John_V]

I am getting a "[0]PETSC ERROR: Out of memory ... Memory requested
1181331276" message when I attempt to solve a 3D mesh with many vertices on
my Windows XP 64-bit machine.

Although this is a large amount of memory, it is not close to the hardware
or OS limit on this machine.

What determines this memory limitation?

Is there a way around it? (E.g,. by setting appropriate command line
options, obtaining a version compiled for 64-bit OS, ...)?

John V.
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