Segmentation fault

From: Craig Rudick <craig_at_fafnir.ASTR.cwru.edu>
Date: Wed, 29 Nov 2006 16:44:26 -0500 (EST)

Hi,

We have been attempting to switch from Gadget1 to Gadget2, but have been
running into the problem that Gadget2 produces a segmentation fault and
dies when we try to run the example initial conditions. The segmentation
fault almost always occurrs during or immediately following the first
domain decomposition, with output that reads:

domain decomposition...
Segmentation fault

We have tried compiling using both the Portland Group and Intel compilers
and see the same behavior.

The really frustrating part is that we only get this error depending on
both on the initial conditions used, and the number or processors on which
it is run. That is, the 'cluster' example IC runs perfectly on up to 16
nodes, however all of the other example ICs will run only on four or fewer
nodes (2 processors per node).

Has anyone seen similar errors with Gadget2 or have any ideas on what
might be the solution to this error?

Thanks,
Craig Rudick
Case Western Reserve University
Received on 2006-11-29 22:44:41