New DAGMC Treatment

User Support
1

Hello,

I noticed that on the OpenMC development branch, dagmc.h5m files are actually treated as universes in the geometry file. This will be a fantastic capability, but right now I’m having a bit of trouble with this feature. When I attempt to run DAGMC geometries, I get ERROR: Specified fill 24 on cell 9999 is neither a universe nor a lattice.

My geometry.xml file is simply:

<?xml version='1.0' encoding='utf-8'?>
<geometry>
  <cell fill="24" id="9999" region="-9999" universe="26" />
  <dagmc_universe filename="dagmc.h5m" id="24" />
  <surface boundary="vacuum" coeffs="0.0 0.0 0.0 639.0" id="9999" type="sphere" />
</geometry>

Is there something else I need to do to get OpenMC to recognize my dagmc.h5m file as a universe? Thank you!

2

All,
I seemed to have solved the problem by recompiling OpenMC. I must’ve made a mistake previously when I compiled. Thanks anyway!

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