[AMBER] Boron QM/MM

From: Pär Håkansson <par.hakansson.oulu.fi>
Date: Fri, 31 May 2019 11:08:00 +0000

Dear amber-suport,

I would like to perform QM/MM with a molecule contain Boron atom.
If I specify QM method as qm_theory ='SCC-DFTB', I get, since this is a non-standard atom,
the error message:

 Parameter files:
     TYP (AT) TYP (AT) SK integral FILE
| 1 1 (B ) 1 (B ) /appl/chem/amber/18/dat/slko/mio-1-1/B-B.skf
 ****************************************************
 * !! A FILE NEEDED BY DFTB WAS NOT FOUND !! *
 ****************************************************
  Missing file:
  /appl/chem/amber/18/dat/slko/mio-1-1/B-B.skf


I then downloaded a set of Bron skf files to from http://www.dftb.org, that I gave to
the administrator of the supercomputer I am using.
However, it would be best not to put these in the same mio-1-1/ directory since they are
generated with a different procedure and are now in /appl/chem/amber/18/dat/slko/matsci-0-3/.
My problem is that sander.MPI still search in mio-1-1 and I get
Missing file:
  /appl/chem/amber/18/dat/slko/mio-1-1/B-B.skf.

Is there a way to make sander search in matsci-0-3/ ? Or do people make a soft link (ln -s) ?

Any advise is very welcome.

Kind regards,
Pär
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Received on Fri May 31 2019 - 04:30:02 PDT
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