Multiple constraint type in a single run

Matt W MattWa... at gmail.com
Thu Mar 5 15:54:30 UTC 2015


See Ari's post here

https://groups.google.com/d/msg/cp2k/IT5_Bz3FQ3w/1lQHNTA9MYIJ


On Thursday, March 5, 2015 at 3:43:49 PM UTC, Marco Caccin wrote:
>
> Dear all,
>
> This message is to point out a missing feature which I just found out. Let 
> me know if I'm wrong…
> In an input file, the (non-repeatable) section MOTION / CONSTRAINT / 
> FIXED_ATOMS only allows one specification of COMPONENTS_TO_FIX and LIST. It 
> is therefore impossible to completely fix a set of atoms (e.g., boundaries 
> of a system) and only one component of another set of atoms (e.g., the z 
> component of some molecule approaching a surface).
>
> Is there a know way to apply multiple constraints at the same time? If 
> not, is it on an implementation to do list?
>
> Cheers,
>
> Marco
>
>
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