Search found 39 matches

by keckler
Wed Feb 21, 2018 2:08 am
Forum: Development
Topic: Equilibrium Cycle Calculation
Replies: 0
Views: 998

Equilibrium Cycle Calculation

Something that I think could be a great benefit to Serpent would be to include equilibrium cycle capability. Right now there is a proliferation of wrapper codes (MOCUP, MocDown, ADOPT/EDIS, etc.) that basically read/write output files to make new inputs so that a march towards equilibrium can be per...
by keckler
Thu Nov 16, 2017 7:45 pm
Forum: Input
Topic: Uniform fission source method (UFS)
Replies: 8
Views: 8546

Re: Uniform fission source method (UFS)

Makes sense -- thanks for the reply!
by keckler
Wed Nov 15, 2017 8:12 pm
Forum: Input
Topic: Uniform fission source method (UFS)
Replies: 8
Views: 8546

Re: Uniform fission source method (UFS)

Hi Jaakko, Could you possibly expand upon your statement from above: Due to the way in which the criticality source simulation mode is implemented in Serpent, the mean population size doesn't settle to the value given in the pop card, and the population size needs to be increased to get the same num...
by keckler
Thu Oct 19, 2017 3:21 am
Forum: Users
Topic: xGPT efunc file contents
Replies: 10
Views: 3960

Re: xGPT efunc file contents

I just wanted to post a followup to this post to say that I got the calculations working correctly, I believe. Here are the details and some feedback, for anybody else who might want to do the same thing: 1. I used xsplot to generate the cross sections at a couple different temperatures. I used a di...
by keckler
Fri Oct 13, 2017 7:56 pm
Forum: Users
Topic: xGPT efunc file contents
Replies: 10
Views: 3960

Re: xGPT efunc file contents

Alright, so now I also see that there is a value printed for the index iSENS_MAT_TOT. So thank you for pointing that out. I was expecting there to be values for all of my materials. My understanding was that the custom perturbation would be applied to all of the materials and ZAIs that are specified...
by keckler
Thu Oct 12, 2017 7:56 pm
Forum: Users
Topic: xGPT efunc file contents
Replies: 10
Views: 3960

Re: xGPT efunc file contents

Hi Ville,

I have sent the input deck via email to the serpent email. Let me know if you find anything, and thanks for your help!

Chris
by keckler
Wed Oct 11, 2017 6:56 pm
Forum: Users
Topic: xGPT efunc file contents
Replies: 10
Views: 3960

Re: xGPT efunc file contents

Thanks for the thorough reply!

From what you say, it seems like my 'efunc' file should be correct. However, I am still getting all zeros in my results of the custom perturbation, for both the energy integrated and the energy dependent values. Would you like me to send you my input?
by keckler
Tue Oct 10, 2017 7:27 pm
Forum: Users
Topic: xGPT efunc file contents
Replies: 10
Views: 3960

xGPT efunc file contents

Hello, I am trying to use a custom perturbation with the new XGPT capabilities to generate the doppler coefficient for materials in my core. I seem to be having a hard time getting this to go, so I want to ask some questions to clarify a few points. There is an example of using the XGPT capability h...
by keckler
Fri Sep 08, 2017 10:43 pm
Forum: Bugs, problems, questions & feeback
Topic: rfr does not work with natural isotopes?
Replies: 1
Views: 2627

rfr does not work with natural isotopes?

Hello, I am trying to run a restart calculation using the binary restart file generated by the 'set rfw' option. When I run the calc, I get an error that says: Input error in parameter "mat" on line 0 in file "binaryRestart": Nuclide 60000 not found in data libraries For parameter description, try S...
by keckler
Thu Jul 27, 2017 4:44 pm
Forum: Parallelization
Topic: memory errors when increasing number of mpi tasks
Replies: 5
Views: 2294

Re: memory errors when increasing number of mpi tasks

Sure thing. The script that I am using for job submission with SLURM is below with all the specifics replaced by variable names: #!/bin/sh #SBATCH --job-name=$name #SBATCH --output=$name.o #SBATCH --error=$name.error #SBATCH --partition=$partition #SBATCH --time=$time #SBATCH --nodes=$nnodes #SBATCH...