OpenMC Killed while attempting to plot

User Support
1

Howdy! I’m attempting to plot a TRISO-based geometry with version 0.15.0. However, the process is killed during Preparing distributed cell instances, and I’m curious if anyone has encountered that before and what could be causing it? Here is the full screen output:

openmc --plot
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                 | The OpenMC Monte Carlo Code
       Copyright | 2011-2024 MIT, UChicago Argonne LLC, and contributors
         License | https://docs.openmc.org/en/latest/license.html
         Version | 0.15.0
        Git SHA1 | 84fb85977f46e162fea8f5a20ea653a3ec62ac24
       Date/Time | 2025-09-03 08:07:11
   MPI Processes | 1
  OpenMP Threads | 186

 Reading settings XML file...
 Reading materials XML file...
 Reading geometry XML file...
 Preparing distributed cell instances...
Killed

Thanks in advance!

2

Depending on your system, it might have run out of memory. Especially for a high packing-fraction, large reactor.

What are the file sizes of your XML (ls -lh *.xml) and what is your machine memory limit (lscpu)? Also are you able to share your XML? If so, then we could test if it works on a system where we are sure the plotter functions normally.

3

It was indeed that our system ran out of memory. After tweaking the slurm submission we got it to plot. Thanks!

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