makeclean
Convert to OpenMC boundary_type
I converted a model using csg2csg from MCNP to OpenMC. And met the following error:
ERROR: No boundary conditions were applied to any surfaces!
application called MPI_Abort(MPI_COMM_WORLD, -1) - process 0
[unset]: write_line error; fd=-1 buf=:cmd=abort exitcode=-1
:
system msg for write_line failure : Bad file descriptor
Traceback (most recent call last):
File "input.py", line 157, in <module>
main(args.geom, args.nps, args.run, args.plot, args.vol)
File "input.py", line 129, in main
openmc.run()
File "/home/zxk/opt/openmc/openmc/executor.py", line 212, in run
_run(args, output, cwd)
File "/home/zxk/opt/openmc/openmc/executor.py", line 30, in _run
''.join(lines))
subprocess.CalledProcessError: Command 'openmc' died with <Signals.SIGSEGV: 11>.
I think this error is related to the boundary type. We need to define the graveyard using boundary_type='vacuum'. However, for the MCNP input file I used, I didn't find the 'imp:norimp:p`.
Hmm it should do that if your cells use imp:n as opposed to a data block. Could you share your geometry?
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From: Xiaokang Zhang [email protected] Sent: Monday, August 5, 2019 5:30:12 PM To: makeclean/csg2csg [email protected] Cc: Subscribed [email protected] Subject: [makeclean/csg2csg] Convert to OpenMC boundary_type (#28)
I converted a model using csg2csg from MCNP to OpenMC. And met the following error:
ERROR: No boundary conditions were applied to any surfaces!
application called MPI_Abort(MPI_COMM_WORLD, -1) - process 0
[unset]: write_line error; fd=-1 buf=:cmd=abort exitcode=-1
:
system msg for write_line failure : Bad file descriptor
Traceback (most recent call last):
File "input.py", line 157, in
I think this error is related to the boundary type. In MCNP, we need to define the entire universion, and set the graveyard using imp:n=0.
But in OpenMC, it seems that it uses boundary_type='vacuum' to define the boundary of the graveyard.
Therefore, when converts the input file from MCNP to OpenMC, we need to detect the boundary surface of the graveyard by imp:n=0 or imp:p=0. And set these surface with type vacuum.
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@makeclean Sorry for that, I just checked in the file, there isn't imp:n. It is the FNG model, I will send the file to you via slack.
@zxkjack123 ah ok, no problem. I haven't implemented block reading for importances or weights yet, feel free to have a go though! I've not got huge amounts of time, and the 'perceived complexity' of the number of different options one has for defining importances has put this down my list, e.g. explicitly 1 2 3 4 5, repeated 1 4R, mulitiplicative 1 3.5M 3.5M, interpolative (sp?) 1 2I 4, im sure there are more :)