AMBER Archive (2008)

Subject: Re: AMBER: [Fwd: segmentation fault in nmode]

From: David A. Case (
Date: Mon Jun 16 2008 - 18:42:47 CDT

On Mon, Jun 16, 2008, Guillaume Renvez wrote:

> I'm trying to do a normal mode calculation (with nmode, Amber 8) with
> the flag ipol = 1, but the program crashes quickly with a "segmentation
> fault" error message.

I don't know if anyone has used the ipol=1 option in nmode for a long time!
(I have never used it). This capability was put in by Jim Caldwell (I think),
and he is reading this list and may remember something. [I'll cc this to him
as well.]

You may well have to turn on a debugger and try to track this down. People on
the list might be willing to help, but we would need all the needed files
(including the prmtop file you are using), in order to give it a try.


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