AMBER Archive (2008)

Subject: AMBER: RE: AMBER: about addles:“forrtl: severe (71): integer divide by zero”.

From: Ross Walker (
Date: Wed May 14 2008 - 11:30:51 CDT

>My is as follow:
>file rprm name=(in.prmtop) read
>file rcrd name=(in.inpcrd) pack=2 read
>file wprm name=(neb.prmtop) wovr
>file wcrd name=(neb.inpcrd) wovr
>~ use original mass
>~ make 30 copies of atom 1 to 22 (the whole system)
>spac numc=30 pick #prt 1 22 done
> I prepared all of the document as the tutorial5. I think there should
be no
> Meanwhile,I repeated the tutorial 5 with deleting the last residue of
the struct1.pdb and struct2. I found >it stopped with the same err:"forrtl:
severe (71): integer divide by zero.''
If you deleted the last residue then it will no longer have 22 atoms - you
would need to change the file to reflect the correct number of
atoms which would now be 16 - so #prt 1 22 ----> #prt 1 16

I am guess the same problem is present with your own system, you have the
number of atoms that addles should copy set incorrectly.

Good luck,

|\oss Walker

| Assistant Research Professor |
| San Diego Supercomputer Center |
| Tel: +1 858 822 0854 | EMail:- |
| | PGP Key available on request |

Note: Electronic Mail is not secure, has no guarantee of delivery, may not
be read every day, and should not be used for urgent or sensitive issues.

The AMBER Mail Reflector
To post, send mail to
To unsubscribe, send "unsubscribe amber" (in the *body* of the email)