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This group is for the discussion of the compilation, installation, and usage of the OpenMC Monte Carlo Particle Transport Code. This group is not intended to replace the issues feature of the GitHub repository; bugs and feature requests should be directed there.

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8/13/20

openmc-users is now moving to Discourse!

Hi all, This mailing list is being retired and we are moving to a new platform for discussion and

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openmc-users is now moving to Discourse!

Hi all, This mailing list is being retired and we are moving to a new platform for discussion and

8/13/20

Sharif Abu Darda

8/12/20

statepoint file is not reading with python script.

I have a statepoint file and I am trying to asses it in python scripts as import openmc import numpy

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statepoint file is not reading with python script.

I have a statepoint file and I am trying to asses it in python scripts as import openmc import numpy

8/12/20

8/12/20

Re: [openmc-users] Issue installing openmc via conda forge on mac

Hi Zach, You'll need to provide a little more detail on how you attempted to install OpenMC (

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Re: [openmc-users] Issue installing openmc via conda forge on mac

Hi Zach, You'll need to provide a little more detail on how you attempted to install OpenMC (

8/12/20

8/8/20

burnup calculations

is there any way to do discontinued burnup calculations using openmc-dev v0.12 for a reactor or a

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burnup calculations

is there any way to do discontinued burnup calculations using openmc-dev v0.12 for a reactor or a

8/8/20

Aulia Rahma, Jiankai YU2

8/7/20

[Errno 2] no such file or directory: 'convert': 'convert'

Hi Aulia, This is caused by absence of "convert" command in your shell. You can check it by

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[Errno 2] no such file or directory: 'convert': 'convert'

Hi Aulia, This is caused by absence of "convert" command in your shell. You can check it by

8/7/20

pshr...@gmail.com

8/6/20

Re: [openmc-users] Rotating Objects

Hi Lauren, Can you try uploading your image again? Maybe as an attachment? I can't seem to see it

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Re: [openmc-users] Rotating Objects

Hi Lauren, Can you try uploading your image again? Maybe as an attachment? I can't seem to see it

8/6/20

Sharif Abu Darda, pshr...@gmail.com2

8/6/20

OpenMC TRISO example is lagging when the height is increased.

Hi Sharif, One thing that jumps out to me is the shape of the TRISO lattice. I'd try creating a

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OpenMC TRISO example is lagging when the height is increased.

Hi Sharif, One thing that jumps out to me is the shape of the TRISO lattice. I'd try creating a

8/6/20

Nurul Putri Rohmadhani, Andrew Johnson2

8/3/20

Error : no cross_sections.xml specified in materials

Nurul, Without more information on where you placed the cross section file, configured your

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Error : no cross_sections.xml specified in materials

Nurul, Without more information on where you placed the cross section file, configured your

8/3/20

Aulia Rahma, Andrew Johnson2

8/3/20

[Errno 12] cannot allocate memory

Aul, The simplest answer is that your working environment / machine did not have enough available

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[Errno 12] cannot allocate memory

Aul, The simplest answer is that your working environment / machine did not have enough available

8/3/20

8/3/20

Questions about running simulation and depletion in parrellel using python script.

Finally, I solved this issue by removing all the "export_to_xml" in the python script. Xml

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Questions about running simulation and depletion in parrellel using python script.

Finally, I solved this issue by removing all the "export_to_xml" in the python script. Xml

8/3/20

8/3/20

Error: extern "C" unexpected indent

Dear Paul and everyone, I have tried running custom source with linkage C in jupyter notebook. But, i

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Error: extern "C" unexpected indent

Dear Paul and everyone, I have tried running custom source with linkage C in jupyter notebook. But, i

8/3/20

Yue JIN, Andrew Johnson5

7/31/20

Burnup calculation of a 1/8 assembly

Thank you very much, Andrew! Your explanation of deviation of k sounds reasonable. I think in the

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Burnup calculation of a 1/8 assembly

Thank you very much, Andrew! Your explanation of deviation of k sounds reasonable. I think in the

7/31/20

Aulia Rahma, Ariful Islam Pranto2

7/29/20

[Errno 21] Is a directory: '/home/labfiskom/anaconda3/envs/am_keras_tf/lib/python3.7/site-packages/openmc/data/endfb71_hdf5'

Open your bashrc file like 'vim ~/.bashrc' or 'gedit ~/.bashrc' and add the following

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[Errno 21] Is a directory: '/home/labfiskom/anaconda3/envs/am_keras_tf/lib/python3.7/site-packages/openmc/data/endfb71_hdf5'

Open your bashrc file like 'vim ~/.bashrc' or 'gedit ~/.bashrc' and add the following

7/29/20

Sharif Abu Darda, … Yahya Alzahrani4

7/28/20

Modeling TRISO cylindrical fuel rod taking too much time

On Tuesday, July 14, 2020 at 10:20:21 PM UTC+3, pshr...@gmail.com wrote: Hi all, I just ran this

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Modeling TRISO cylindrical fuel rod taking too much time

On Tuesday, July 14, 2020 at 10:20:21 PM UTC+3, pshr...@gmail.com wrote: Hi all, I just ran this

7/28/20

Aulia Rahma, Ariful Islam Pranto2

7/28/20

no module named 'openmc.deplete'

Install the jupyter-notebook in your conda env where you have installed openmc-0.12.0. conda install

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no module named 'openmc.deplete'

Install the jupyter-notebook in your conda env where you have installed openmc-0.12.0. conda install

7/28/20

Yahya Alzahrani

7/27/20

TRISO fuel assembly showing way less fission reaction rate data

Greetings fellow OpenMC users. I am designing a (9,9) reactor assembly with a 16 TRISO(u235

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TRISO fuel assembly showing way less fission reaction rate data

Greetings fellow OpenMC users. I am designing a (9,9) reactor assembly with a 16 TRISO(u235

7/27/20

Mike Echlin, Paul Romano3

7/27/20

Call tree/profiler

Hi, Thank you Paul, perf is working out well, for the c++ code. perf script > scr.out then

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Call tree/profiler

Hi, Thank you Paul, perf is working out well, for the c++ code. perf script > scr.out then

7/27/20

Yiming Zhong, … Andrew Johnson5

7/25/20

Fuel Assembly Burn-up calculation K-eff value

Hi, After the above discussion, I rebuild the 17*17 nuclear assembly model geometry with 3D pitch

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Fuel Assembly Burn-up calculation K-eff value

Hi, After the above discussion, I rebuild the 17*17 nuclear assembly model geometry with 3D pitch

7/25/20

Yue JIN, Paul Romano2

7/24/20

hexagonal lattice coordinates in pandas dataframe

Close, but not quite. What is shown as (x,y) in the dataframe should actually be (x,alpha). These

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hexagonal lattice coordinates in pandas dataframe

Close, but not quite. What is shown as (x,y) in the dataframe should actually be (x,alpha). These

7/24/20

Farshid Reza Sabab, Andrew Johnson2

7/24/20

Question regarding setting depletion chain as environment variable!

There used to be an environment variable that was used for just this purpose, but it was removed in #

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Question regarding setting depletion chain as environment variable!

There used to be an environment variable that was used for just this purpose, but it was removed in #

7/24/20

Nurul Putri Rohmadhani, Andrew Johnson2

7/24/20

Module 'openmc.model' has no attribute 'pin'

What version of openmc are you using? The pin function was added in 0.11.0 Regards, Andrew On Friday,

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Module 'openmc.model' has no attribute 'pin'

What version of openmc are you using? The pin function was added in 0.11.0 Regards, Andrew On Friday,

7/24/20

Paul Romano, FIBER MONADO2

7/22/20

Release of OpenMC 0.12.0

Dear Paul, Awesome 👍👍👍👍 On Thu, Jul 23, 2020 at 3:36 AM Paul Romano <paul.k...@gmail.com>

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Release of OpenMC 0.12.0

Dear Paul, Awesome 👍👍👍👍 On Thu, Jul 23, 2020 at 3:36 AM Paul Romano <paul.k...@gmail.com>

7/22/20

Ariful Islam Pranto

7/22/20

OpenMC on Android

Running OpenMC on Android. Just for fun.

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OpenMC on Android

Running OpenMC on Android. Just for fun.

7/22/20

Karthik Rajendran, … Paul Romano3

7/21/20

Error while trying example of 'Modeling hexagonal lattices'

Hi Karthik, The exception that is shown indicates that the OpenMC executable did not complete

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Error while trying example of 'Modeling hexagonal lattices'

Hi Karthik, The exception that is shown indicates that the OpenMC executable did not complete

7/21/20

Ariful Islam Pranto2

7/18/20

Re: depletion problem

Details of your 2nd question, power = x [w/cm3] * volume power = x[w/cm] * Area >> Your first

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Re: depletion problem

Details of your 2nd question, power = x [w/cm3] * volume power = x[w/cm] * Area >> Your first

7/18/20

Nurul Putri Rohmadhani, Ariful Islam Pranto2

7/18/20

(errno 12) cannot allocate memory

Why do you have the same radius for two-cylinder? For the first picture, This is certainly a memory

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(errno 12) cannot allocate memory

Why do you have the same radius for two-cylinder? For the first picture, This is certainly a memory

7/18/20

Yue JIN, … Paul Romano4

7/16/20

Depletion question

Thank you, Jiankai. very helpful 在 2020年7月14日星期二 UTC+8下午9:25:23，Jiankai YU写道： Hi Yue, The time

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Depletion question

Thank you, Jiankai. very helpful 在 2020年7月14日星期二 UTC+8下午9:25:23，Jiankai YU写道： Hi Yue, The time

7/16/20

Yue JIN, … Paul Romano4

7/16/20

Question about principle of choosing number of batches and particles

Thanks Paul for your help! 在 2020年7月15日星期三 UTC+8下午8:47:40，Paul Romano写道： Yes, I generally tend to

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Question about principle of choosing number of batches and particles

Thanks Paul for your help! 在 2020年7月15日星期三 UTC+8下午8:47:40，Paul Romano写道： Yes, I generally tend to

7/16/20

Ian Hill, … Jonathan Shimwell3

7/15/20

Stability of Output Format, mesh tallies.

Hi all Just to chime in, OpenMC structured mesh and unstructured mesh output files can also be output

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Stability of Output Format, mesh tallies.

Hi all Just to chime in, OpenMC structured mesh and unstructured mesh output files can also be output

7/15/20

Emory Colvin, … Paul Romano6

7/15/20

Generating ACE library from ENDF

Sadly, the interaction I care about is a (gamma,n). Thanks for the help, everyone! Guess it's

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Generating ACE library from ENDF

Sadly, the interaction I care about is a (gamma,n). Thanks for the help, everyone! Guess it's

7/15/20

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