def buildCase():
"""Build input components and a case."""
bp = blueprints.Blueprints()
bp.customIsotopics = isotopicOptions.CustomIsotopics()
bp.nuclideFlags = isotopicOptions.genDefaultNucFlags()
components = buildComponents()
bp.blockDesigns = buildBlocks(components)
bp.assemDesigns = buildAssemblies(bp.blockDesigns)
bp.gridDesigns = buildGrids()
bp.systemDesigns = buildSystems()
cs = caseSettings.Settings()
cs.path = None
cs.caseTitle = "scripted-case"
case = cases.Case(cs=cs, bp=bp)
return case
def _resolveNuclides(self, cs):
"""
Process elements and determine how to expand them to natural isotopics.
Also builds meta-data about which nuclides are in the problem.
This system works by building a dictionary in the
``elementsToExpand`` attribute with ``Element`` keys
and list of ``NuclideBase`` values.
The actual expansion of elementals to isotopics occurs during
:py:meth:`Component construction <armi.reactor.blueprints.componentBlueprint.
ComponentBlueprint._constructMaterial>`.
"""
from armi import utils
actives = set()
inerts = set()
undefBurnChainActiveNuclides = set()
if self.nuclideFlags is None:
self.nuclideFlags = isotopicOptions.genDefaultNucFlags()
self.elementsToExpand = []
for nucFlag in self.nuclideFlags:
# this returns any nuclides that are flagged specifically for expansion by input
expandedElements = nucFlag.fileAsActiveOrInert(
actives, inerts, undefBurnChainActiveNuclides)
self.elementsToExpand.extend(expandedElements)
inerts -= actives
self.customIsotopics = self.customIsotopics or isotopicOptions.CustomIsotopics(
)
(
elementalsToKeep,
expansions,
) = isotopicOptions.autoSelectElementsToKeepFromSettings(cs)
nucsFromInput = actives | inerts # join
# Flag all elementals for expansion unless they've been flagged otherwise by
# user input or automatic lattice/datalib rules.
for elemental in nuclideBases.instances:
if not isinstance(elemental, nuclideBases.NaturalNuclideBase):
# `elemental` may be a NaturalNuclideBase or a NuclideBase
# skip all NuclideBases
continue
if elemental in elementalsToKeep:
continue
if elemental.name in actives:
currentSet = actives
actives.remove(elemental.name)
elif elemental.name in inerts:
currentSet = inerts
inerts.remove(elemental.name)
else:
# This was not specified in the nuclide flags at all.
# If a material with this in its composition is brought in
# it's nice from a user perspective to allow it.
# But current behavior is that all nuclides in problem
# must be declared up front.
continue
self.elementsToExpand.append(elemental.element)
if (elemental.name in self.nuclideFlags
and self.nuclideFlags[elemental.name].expandTo):
# user-input has precedence
newNuclides = [
nuclideBases.byName[nn] for nn in self.nuclideFlags[
elemental.element.symbol].expandTo
]
elif (elemental in expansions
and elemental.element.symbol in self.nuclideFlags):
# code-specific expansion required
newNuclides = expansions[elemental]
# overlay code details onto nuclideFlags for other parts of the code
# that will use them.
# CRAP: would be better if nuclideFlags did this upon reading s.t.
# order didn't matter. On the other hand, this is the only place in
# the code where NuclideFlags get built and have user settings around
# (hence "resolve").
# This must be updated because the operative expansion code just uses the flags
#
# Also, if this element is not in nuclideFlags at all, we just don't add it
self.nuclideFlags[elemental.element.symbol].expandTo = [
nb.name for nb in newNuclides
]
else:
# expand to all possible natural isotopics
newNuclides = elemental.element.getNaturalIsotopics()
for nb in newNuclides:
currentSet.add(nb.name)
if self.elementsToExpand:
runLog.info(
"Will expand {} elementals to have natural isotopics".format(
", ".join(element.symbol
for element in self.elementsToExpand)))
self.activeNuclides = ordered_set.OrderedSet(sorted(actives))
self.inertNuclides = ordered_set.OrderedSet(sorted(inerts))
self.allNuclidesInProblem = ordered_set.OrderedSet(
sorted(actives.union(inerts)))
# Inform user which nuclides are truncating the burn chain.
if undefBurnChainActiveNuclides:
runLog.info(
tabulate.tabulate(
[[
"Nuclides truncating the burn-chain:",
utils.createFormattedStrWithDelimiter(
list(undefBurnChainActiveNuclides)),
]],
tablefmt="plain",
),
single=True,
)