Search found 540 matches

by Ana Jambrina
Mon Oct 18, 2021 1:15 pm
Forum: Input
Topic: Problem with multiple universes XS generation
Replies: 1
Views: 24

Re: Problem with multiple universes XS generation

Your description, as you are aware of, ends in overlapping cell-universes. You might want to try building an intermediate layer that deals with the axial heterogeneity and, ultimately, fill the root universe with it, such as, e.g., stacking lattices vertically or universe-based copy parts of the geo...
by Ana Jambrina
Sun Oct 17, 2021 10:05 pm
Forum: Users
Topic: Precursor source empty
Replies: 1
Views: 39

Re: Precursor source empty

The calculation might be failing because may be nothing there to simulate: without live neutrons until the time-interval boundary and no delayed neutron precursors from where the delayed neutron emission could create the source for the incoming interval, the simulation ends. Double-check the conditi...
by Ana Jambrina
Wed Oct 13, 2021 5:46 pm
Forum: Users
Topic: Cumulative yield
Replies: 12
Views: 148

Re: Cumulative yield

If your personal computer is a no go, maybe you can try running the case in a computer cluster at your institution.
by Ana Jambrina
Wed Oct 13, 2021 4:21 pm
Forum: Compiling and installing Serpent
Topic: There is no application installed for "shared library" files
Replies: 9
Views: 129

Re: There is no application installed for "shared library" files

The 'chmod u+x xsdirconvert.pl' changes the permissions of the script to 'executable'. The command should be run as: ./xsdirconvert.pl xsdir >> xsdata The first line of the 'xsdir' file points to the absolute path of the directory containing the ACE files. If the 'xsdata' file is empty, and a list o...
by Ana Jambrina
Wed Oct 13, 2021 3:00 pm
Forum: Compiling and installing Serpent
Topic: There is no application installed for "shared library" files
Replies: 9
Views: 129

Re: There is no application installed for "shared library" files

Either you set an environment variable with the path of the XS file, see: Setting up the data libraries or define the absolute path through ‘ set acelib ’. Check the path you input is consistent with the path within the ‘xsdata’ file. Note: if the path in the 'xsdata' file needs to be modified, you ...
by Ana Jambrina
Wed Oct 13, 2021 12:39 pm
Forum: Users
Topic: Cumulative yield
Replies: 12
Views: 148

Re: Cumulative yield

The input setup seems to be OK - I even ran a quick single depletion step simulation without any errors.
Most likely, you are running out of memory (memory can be a bottleneck in burnup calculations).
by Ana Jambrina
Wed Oct 13, 2021 12:35 pm
Forum: Compiling and installing Serpent
Topic: There is no application installed for "shared library" files
Replies: 9
Views: 129

Re: There is no application installed for "shared library" files

Those warnings are OK. Try ./sss2 -version (or directly run a case).
If you some kind of problem, try recompiling the source: (1) make clean (2) make
by Ana Jambrina
Wed Oct 13, 2021 12:09 pm
Forum: Users
Topic: Cumulative yield
Replies: 12
Views: 148

Re: Cumulative yield

What is the exact error message that Serpent is printing out (and when does it happen)? Which Serpent version are you running? Could you post here the full input? Note: you might be just running out of memory. If that is the case, you can try to customize the calculation options to enable the simula...
by Ana Jambrina
Wed Oct 13, 2021 11:41 am
Forum: Users
Topic: Cumulative yield
Replies: 12
Views: 148

Re: Cumulative yield

If you are performing a depletion calculation with default output options (equivalent to 'set depout 2 1', outputting only 'parent' materials for all time steps), the '_dep.m' file is automatically produced - see ' set depout ' option. For more details of how to perform a burnup calculation, check t...
by Ana Jambrina
Wed Oct 13, 2021 9:17 am
Forum: Compiling and installing Serpent
Topic: There is no application installed for "shared library" files
Replies: 9
Views: 129

Re: There is no application installed for "shared library" files

If you compiled Serpent without errors, which seems to be the case, an executable file named 'sss2' would have been created in the directory where you compiled the source (based on the Makefile specifications) - as described in ' Compiling the source code '. Having the executable and the cross-secti...