question on p4_error

I’ve got the following error message for the system of 48960 atoms.

LAMMPS (1 Oct 2010)
Reading restart file …
orthogonal box = (-21.12 -1.12587 0) to (2520.73 50.6699 30)
30 by 1 by 1 processor grid
48960 atoms
Finding 1-2 1-3 1-4 neighbors …
0 = max # of 1-2 neighbors
p0_20949: p4_error: interrupt SIGSEGV: 11

I changed the number of node to various values but it showed the same error message.
What’s the problem and what should I do for it?
Should I use neighbor modify command?

Thanks for your helps in advance.

Young

2011/9/27 JhonY. I. <[email protected]>:

I've got the following error message for the system of 48960 atoms.

LAMMPS (1 Oct 2010)
Reading restart file ...
orthogonal box = (-21.12 -1.12587 0) to (2520.73 50.6699 30)
30 by 1 by 1 processor grid
48960 atoms
Finding 1-2 1-3 1-4 neighbors ...
0 = max # of 1-2 neighbors
p0_20949: p4_error: interrupt SIGSEGV: 11

I changed the number of node to various values but it showed the same error
message.

the error message originates from your MPI library (MPICH).
most likely you have an error abort on one of the remote nodes.
MPICH is notorious in terminating the connection without
reporting the error output from remote nodes. the segfault
is a consequence of the termination.

What's the problem and what should I do for it?
Should I use neighbor modify command?

impossible to tell what the real problem is.
try running with one processor and see, if you get an error on your input.

axel.