Hi Johannnes,
That is correct.
Another confirmation of what you already suspect is found in the manual in
http://manual.gromacs.org/documentation/current/reference-manual/topologies/molecule-definition.html
<http://manual.gromacs.org/documentation/2020/reference-manual/topologies/molecule-definition.html>
"Molecules can be made infinitely long by connecting to themselves over periodic boundaries. When such periodic
molecules are present, an option in the mdp file needs to be set to tell GROMACS not to attempt to make molecules that
are broken over periodic boundaries whole again."
Best,
Christian
On 2020-03-06 08:52, Johannes Hermann wrote:
Dear all,
could you please confirm if I understood the periodic molecules entry (I already browsed through the manual and
mailing list):
I need "periodic molecules = yes", if a molecule interacts=connects to itself via covalent bonds over the periodic
boundary.
I do NOT need "periodic molecules = yes", if a molecule interacts via non-covalent interactions to itself via PBs. In
this case "periodic molecules = no" is the right choice.
Is that right?
Thanks in advance!
All the best
Johannes
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