Search found 28 matches

by markdehart
Thu Nov 13, 2014 2:11 am
Forum: Input
Topic: Homogenized Group Cross Sections for Individual Materials
Replies: 4
Views: 4292

Re: Homogenized Group Cross Sections for Individual Materials

Okay, here is a variation on the above. I'd like to get homogenized cross sections for m1 and m1 - I can do the above without a problem. What if I wanted to homogenize the remaining materials, m3, m4 and m5, to get a homogenization over the three materials combined. Is this possible?
by markdehart
Wed Apr 16, 2014 4:27 pm
Forum: Input
Topic: Union operator
Replies: 2
Views: 2180

Re: Union operator

Is the MCNP complement operator (#) supported, or are there any plans to do so? I am trying to convert a rather complicated MCNP input and am not sure how to handle this operator.
by markdehart
Thu Jan 09, 2014 6:25 pm
Forum: Input
Topic: New mesh plotter capabilities
Replies: 27
Views: 37413

Re: New mesh plotter capabilities

Oooo. Okay, now that I know this everything makes more sense. And when I was omitting the pair, it likely used the min and max ranges, which explains another oddity I was seeing in a plot (large fission energy deposition occurring in an air channel).

Thanks!
by markdehart
Thu Jan 09, 2014 1:32 am
Forum: Input
Topic: New mesh plotter capabilities
Replies: 27
Views: 37413

Re: New mesh plotter capabilities

I've been playing with the mesh plotting recently for INL's TREAT reactor. I can't seem to figure out how to locate the plot on the axis of interest. I can certainly pick the axis, and the upper and lower coordinates for each of the other bounds. But the specification you give here doesn't seem to w...
by markdehart
Wed Jan 08, 2014 12:28 am
Forum: Input
Topic: Lattice power output
Replies: 4
Views: 5006

Lattice power output

The Serpent 1 manual describes "Power distributions in lattices." However, in a sss2 calculation that included a lattice, I get no power output. Is this available in Serpent 2?
by markdehart
Mon Sep 30, 2013 6:04 pm
Forum: Gamma transport
Topic: Running gamma transport simulation
Replies: 16
Views: 5506

Re: Running gamma transport simulation

It appears that the gbuf buffer issue is related to the number of processors in an OpenMP calculation. I came in this morning and tried to run a case that ran last week, and kept finding that a value of 50 was too low (although the same value worked last week). I had made a minor change in the input...
by markdehart
Fri Sep 27, 2013 8:46 pm
Forum: Gamma transport
Topic: Material total reactions for gammas
Replies: 2
Views: 1612

Re: Material total reactions for gammas

Yep - that worked. Nice. Thanks.
by markdehart
Fri Sep 27, 2013 8:26 pm
Forum: Gamma transport
Topic: Material total reactions for gammas
Replies: 2
Views: 1612

Material total reactions for gammas

Is is there total reaction tally for energy deposition for gammas, similar to -8 for neutron energy deposition?
by markdehart
Tue Sep 24, 2013 5:34 am
Forum: Gamma transport
Topic: Running gamma transport simulation
Replies: 16
Views: 5506

Re: Running gamma transport simulation

This last patch got me off and running. I set gbuf to 50 (sometime I'll experiment to see how low I can take it and get it to work). But now I have a case that runs to completion, and I'll now start looking at detector scoring. I also got the tracks option to work. Have to say that is pretty darned ...
by markdehart
Sun Sep 22, 2013 6:01 am
Forum: Gamma transport
Topic: Running gamma transport simulation
Replies: 16
Views: 5506

Re: Running gamma transport simulation

This gets me into the iterations, but then it stops after just a couple of batches and tells me gbuf is too small. I bumped up gbuf to 100 and it told me it was limited to 10. I set it to 10 but then it again stops and tells me it needs to that it is too small. I tried -tracks 1000 and that part ran...