s.halos() not working for RAMSES

[GANESH N]

Halo finder not working in the analysis of simulation of an isolated disk galaxy using RAMSES. I have installed AHF halo finder and added its path to .bashrc.  But when I run s.halos() I get the following error.

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configparser.InterpolationSyntaxError: bad interpolation variable reference '%(typecode)d\noutfile_prefix = %(filename)s\nLgridDomain = 256\nLgridMax = %(gridmax)d\nNperDomCell = 5\nNperRefCell = 5\nVescTune = 1.5\nNminPerHalo = 50\nRhoVir = 0\nDvir = 200\nMaxGatherRad = 10.0'  

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Should I edit the configuration file of pynbody for RAMSES? 

Please help to resolve the issue.

[Tobias Buck]

Hi Ganesh,

I had a similar issue.

I think the solution boils down to some string formatting issues in the config file for the AHF section.

with this in the .pynbodyrc file not works for me:

[AHFCatalogue]

Config:   [AHF]
          ic_filename = %(filename)s
          ic_filetype = %(typecode)s
          outfile_prefix = %(filename)s
          LgridDomain = 256
          LgridMax = %(gridmax)s
          NperDomCell = 5
          NperRefCell = 5
          VescTune = 1.5
          NminPerHalo = 50
          RhoVir = 0
          Dvir = 200
          MaxGatherRad = 10.0

ConfigTipsy:      [TIPSY]
          TIPSY_OMEGA0 = %(omega0)s
          TIPSY_LAMBDA0 = %(lambda0)s
          TIPSY_BOXSIZE = %(boxsize)s
          TIPSY_VUNIT = %(vunit)s

 

cheers

Tobias

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[Andrew Pontzen]

I don’t think AHF works with Ramses files, unfortunately. You’ll probably need to use HOP, AdaptaHOP, or create a pipeline like converting your Ramses to gadget files in order to run AHF.

Hope this helps a little. All the best,

Andrew Pontzen

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