Hi Christoph, 

"Ok, if you are using a mapping file (--cg option), the exclusion from the 
tpr get mapped out." 
Does this mean that I should not be using the mapping file in order for the 
exclusions to be taken into account. I was under the impression that it was 
necessary. I have already defined those bonds in the mapping file. 
 
  
On Monday, January 6, 2020 at 8:34:01 PM UTC+2, Christoph Junghans wrote:
>
> On Mon, Jan 6, 2020 at 10:26 AM CHRISTINA-ANNA GATSIOU 
> <[email protected] <javascript:>> wrote: 
> > 
> > 
> > 
> > On Friday, January 3, 2020 at 5:30:28 PM UTC+2, Christoph Junghans 
> wrote: 
> >> 
> >> 
> >> 
> >> On Fri, Jan 3, 2020 at 8:13 AM CHRISTINA-ANNA GATSIOU <
> [email protected]> wrote: 
> >>> 
> >>> Hi Christoph, 
> >>> 
> >>> I have set all exclusions in the gromacs topology file. However, 
> during IBI for one nonbonded interaction I get the attached distribution 
> (red corresponds to the bond distribution the bonded beads, green 
> corresponds to the target distribution of bead types and blue to IBI 
> distribution at step 30). It seems that bonded pairs are included in the 
> g(r) even though I have specified them as non interacting in the exclusion 
> list. I cannot figure out what might be the problem here. Thanks in 
> advance. 
> >> 
> >> Go in the log file (usually inverse.log) and find the last csg_stat 
> call (e.g. with "grep csg_stat inverse.log") and post it here. 
> >> 
> > csg_stat --nt 8 --options settings_nb.xml --top topol.tpr --trj traj.xtc 
> --begin 5 --first-frame 0 --cg topology.xml; 
> Ok, if you are using a mapping file (--cg option), the exclusion from 
> the tpr get mapped out. You will need to add bonds between the atoms 
> you want to exclude in mapping file. See here for an example: 
>
> https://github.com/votca/csg-tutorials/blob/master/hexane/ibi_all/hexane_cg.xml#L25-L39
>  
> You don't need to do anything with these bonds in the IBI iterations. 
>
> Again you can check the exclusions after mapping with csg_dump, e.g. 
> $ csg_dump --excl --top topol.tpr --cg topology.xml 
>
> Christoph 
> > 
> > 
> >> 
> >> Christoph 
> >>> 
> >>> 
> >>> 
> >>> Best regards, 
> >>> Christianna 
> >>> 
> >>> On Saturday, December 14, 2019 at 8:52:34 PM UTC+2, Christoph Junghans 
> wrote: 
> >>>> 
> >>>> 
> >>>> 
> >>>> On Sat, Dec 14, 2019 at 11:27 CHRISTINA-ANNA GATSIOU <
> [email protected]> wrote: 
> >>>>> 
> >>>>> Hi Christoph, 
> >>>>> 
> >>>>> My topology.xml does contain exclusions. I have only specified 
> nrexcl 3 which I thought should do the job. Do I need to specify exclusions 
> in the topology.xml or in the gromacs topology file ? 
> >>>> 
> >>>> If you are using a tpr file as topology VOTCA will read the 
> exclusions from there. If you are using a xml topology exclusions will be 
> generated out of the bonds and angles. 
> >>>> 
> >>>> Just look in inverse.log what topology file is used by csg_stat and 
> run csg_dump on it to check the exclusions. 
> >>>> 
> >>>> Christoph 
> >>>>> 
> >>>>> Thanks for the prompt response. 
> >>>>> 
> >>>>> Best regards, 
> >>>>> Christianna 
> >>>>> 
> >>>>> On 14 Dec 2019, at 1:26 AM, Christoph Junghans <[email protected]> 
> wrote: 
> >>>>> 
> >>>>> csg_dump --excl --top <topology_file> 
> >>>>> 
> >>>>> 
> >>>>> -- 
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>  
>
> >>>> 
> >>>> -- 
> >>>> Christoph Junghans 
> >>>> Web: http://www.compphys.de 
> >>> 
> >>> -- 
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>  
>
> >> 
> >> 
> >> 
> >> -- 
> >> Christoph Junghans 
> >> Web: http://www.compphys.de 
> > 
> > -- 
> > You received this message because you are subscribed to the Google 
> Groups "votca" group. 
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>  
>
>
>
>
> -- 
> Christoph Junghans 
> Web: http://www.compphys.de 
>

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