Search found 77 matches

by Andrei Fokau
Tue Oct 05, 2010 1:43 pm
Forum: Users
Topic: Interactive plotter for Serpent
Replies: 12
Views: 3923

Re: Interactive plotter for Serpent

There is a small bug in move up/down commands. It works correctly in XY axes, but reversed in XZ and YZ. I will fix it soon.
by Andrei Fokau
Wed Sep 29, 2010 12:28 pm
Forum: Users
Topic: Interactive plotter for Serpent
Replies: 12
Views: 3923

Re: Interactive plotter for Serpent

I tried all the steps but the version is sill 1.8.7. I am using iTerm, but the version number is the same when I try with terminal. The RVM paths are not in $PATH. Ok, RVM scripts obviously do not run as they should. Could you try sudo source ~/.rvm/scripts/rvm sudo rvm use ruby-1.9.2-p0 echo $PATH...
by Andrei Fokau
Wed Sep 29, 2010 9:58 am
Forum: Users
Topic: Interactive plotter for Serpent
Replies: 12
Views: 3923

Re: Interactive plotter for Serpent

Jaakko, I had similar problem with Ruby version in TextMate, but that was due to the application. Have you executed the following line after installing RVM? source ~/.rvm/scripts/rvm Probably yes, since the script is working. And probably the following command as well rvm use ruby-1.9.2-p0 Interesti...
by Andrei Fokau
Tue Sep 28, 2010 9:39 pm
Forum: Users
Topic: Interactive plotter for Serpent
Replies: 12
Views: 3923

Re: Interactive plotter for Serpent

I'm having some problems running ruby, or understanding how the system works, to be more exact. I'm using a MacBook Pro with OS X 10.6.1. Ruby seems to be installed by default, but when I try to run your script, all I get is a long list of errors, so I'm guessing I'm either missing something or I s...
by Andrei Fokau
Sat Sep 25, 2010 11:19 am
Forum: Development
Topic: Shared memory with MPI
Replies: 1
Views: 3485

Shared memory with MPI

Serpent requires quite significant amount of RAM per processor, especially for burnup calculations. If the user wants to run Serpent in MPI mode, then the required amount of memory is multiplied by the number of parallel processes, limiting the performance or precision. On the other hand, the vast m...
by Andrei Fokau
Fri Sep 24, 2010 1:07 pm
Forum: Users
Topic: Serpent-to-MCNP input converter
Replies: 0
Views: 4337

Serpent-to-MCNP input converter

In some cases, one has to use MCNP instead of Serpent in order to calculate parameters of a pin-, assembly- or full-core model. Since, it is quite hard and time-consuming to make a MCNP input file, I was always looking for an alternative way, as probably most of MCNP users are. Visual editors develo...
by Andrei Fokau
Fri Sep 24, 2010 11:52 am
Forum: Users
Topic: SFR model for SERPENT
Replies: 1
Views: 1174

Re: SFR model for SERPENT

Arjan, Serpent is mostly used for pin- and assembly-model calculations, so I doubt that someone has designed a detailed SFR model. If you intend to study XS uncertainty propagation, then you would rather use as simple model as possible for your studies, at least at the beginning. Thanks to Jaakko, y...
by Andrei Fokau
Tue Sep 21, 2010 5:20 pm
Forum: Development
Topic: Material mixes
Replies: 2
Views: 4491

Re: Material mixes

I think I had something like this in PSG, the predecessor of Serpent, but for some reason I didn't transfer the coding to Serpent. A convenient way of making material card is definitely not the most important thing to think about, but it is worth to be kept in mind. I hope that one day you will hav...
by Andrei Fokau
Sat Sep 18, 2010 9:38 pm
Forum: Development
Topic: Adding new surface types
Replies: 6
Views: 8343

Re: CYLPRISM, PADPRISM

Despite that pins (nests) are great for defining fuel elements, sometimes one needs to model the elements with more details. For such cases, it would be nice to have CYLPRISM surface type, which is a cylinder between z1 and z2. surf 1 cylprism x0 y0 r z1 z2 I have tried to add CYLPRISM by myself an...
by Andrei Fokau
Sat Sep 18, 2010 8:28 pm
Forum: Manual
Topic: Things to correct in the manual
Replies: 11
Views: 19863

Version August 25, 2010

On page 20, Table 3.1:
- hexxprism and hexyprism have 6 parameters, but Serpent recognizes only 5 (w/o r0)
- cyl actually has five parameters, namely x0, y0, r, z1, and z2