No error message even Turn on debug

User Support
1

Hi,Openmc experts

I’m new with openmc and got a lot of errors while trying it.My project is about co-operate Fluka and Openmc together on ADS problem by creating spallation source from fluka and simulate on openmc.

My problem is I try to create my own inputs (geometry,materials,settings…) and run it, but i got this error

Reading settings XML file…
Reading cross sections XML file…
Reading materials XML file…
Reading geometry XML file…
Reading Pb204 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Pb204.h5
Reading Pb206 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Pb206.h5
Reading Pb207 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Pb207.h5
Reading Pb208 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Pb208.h5
Reading Bi209 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Bi209.h5
Reading Np237 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Np237.h5
Reading Pu238 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Pu238.h5
Reading Pu239 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Pu239.h5
Reading Pu240 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Pu240.h5
Reading Pu241 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Pu241.h5
Reading Pu242 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Pu242.h5
Reading Am241 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Am241.h5
Reading Am242_m1 from
/home/billythanapong/openmc/endfb71/endfb71_hdf5/Am242_m1.h5
Reading Am243 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Am243.h5
Reading Cm242 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Cm242.h5
Reading Cm243 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Cm243.h5
Reading Cm244 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Cm244.h5
Reading Cm245 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Cm245.h5
Reading Cm246 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Cm246.h5
Reading Zr90 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Zr90.h5
Reading Zr91 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Zr91.h5
Reading Zr92 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Zr92.h5
Reading Zr94 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Zr94.h5
Reading Zr96 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Zr96.h5
Reading N15 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/N15.h5
Reading Fe54 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Fe54.h5
Reading Fe56 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Fe56.h5
Reading Fe57 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Fe57.h5
Reading Fe58 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Fe58.h5
Reading Cr50 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Cr50.h5
Reading Cr52 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Cr52.h5
Reading Cr53 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Cr53.h5
Reading Cr54 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Cr54.h5
Reading Ni58 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Ni58.h5
Reading Ni60 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Ni60.h5
Reading Ni61 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Ni61.h5
Reading Ni62 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Ni62.h5
Reading Ni64 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Ni64.h5
Reading Mo100 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Mo100.h5
Reading Mo92 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Mo92.h5
Reading Mo94 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Mo94.h5
Reading Mo95 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Mo95.h5
Reading Mo96 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Mo96.h5
Reading Mo97 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Mo97.h5
Reading Mo98 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Mo98.h5
Reading Mn55 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/Mn55.h5
Reading W182 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/W182.h5
Reading W183 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/W183.h5
Reading W184 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/W184.h5
Reading W186 from /home/billythanapong/openmc/endfb71/endfb71_hdf5/W186.h5
Minimum neutron data temperature: 294.0 K
Maximum neutron data temperature: 294.0 K
Reading tallies XML file…
Preparing distributed cell instances…
Writing summary.h5 file…
Maximum neutron transport energy: 20000000.0 eV for Np237

===============> FIXED SOURCE TRANSPORT SIMULATION <===============

Simulating batch 1
Segmentation fault (core dumped)

Then, I turn on debug and re-run again
(I use ccmake to turn on debug in CMakeCache.txt in build-debug directory)
but still got same error with no any message.
Did I do something wrong? or my code isn’t correct? Please correct me.

ccmake
ccmake959×482 11.4 KB

These are my input files

materials
materials536×676 19 KB

settings

geometry
geometry937×360 13.6 KB

Capture
Capture1067×295 12 KB

2

Hi @billytnp. Any chance you could share the source file as well (source_fluka.h5)?

3

Hi @paulromano,

Here is my source.

source.h5

4

So the format of the source sites inside an HDF5 file has changed somewhat over time. The source file that you have does not match what OpenMC expects, which I suspect is why it is crashing. Unfortunately, it looks like our documentation is not correct regarding what attributes need to be stored in the compound datatype inside of a source file either. To make this easier and less error-prone, I’ve just implemented a new write_source_file function (along with a SourceParticle class) that allows you to generate a source file programmatically from Python. You can find this function in this pull request. I would suggest re-generating your source file using this new function (you can copy/paste the implementation from the pull request into a script for now). The workflow would look like:

source_particles = []
for _ in range(num_particles):
    s = openmc.SourceParticle(...)  # <-- set arguments using data from FLUKA
    source_particles.append(s)

openmc.write_source_file(source_particles, 'source_fluka.h5')

Let me know if you have questions!

5

@billytnp It also occurred to me that we don’t currently support using a source file in conjunction with a fixed source simulation. I’ve created an issue to keep track of this and hopefully we can get that fixed in the near term.

7

Dear Paul,

Thank you for your help.

I’m working on it.