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support not writting db in snapshots #2032

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support not writting db in snapshots #2032

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10 changes: 7 additions & 3 deletions armi/operators/snapshots.py
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Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,7 @@ def _mainOperate(self):
dbi = self.getInterface("database")
# database is excluded since SS writes by itself
excludeDB = ("database",)
dbActive = dbi.enabled
for ssCycle, ssNode in snapshots:
runLog.important(
"Beginning snapshot ({0:02d}, {1:02d})".format(ssCycle, ssNode)
Expand All @@ -82,14 +83,17 @@ def _mainOperate(self):
# database is excluded since it writes after coupled
self.interactAllEveryNode(ssCycle, ssNode, excludedInterfaceNames=excludeDB)
self._performTightCoupling(ssCycle, ssNode, writeDB=False)
# tight coupling is done, now write to DB
dbi.writeDBEveryNode()

if dbActive:
# tight coupling is done, now write to DB
dbi.writeDBEveryNode()

self.interactAllEOC(self.r.p.cycle)

# run things that happen at EOL, like reports, plotters, etc.
self.interactAllEOL(excludedInterfaceNames=excludeDB)
dbi.closeDB() # dump the database to file
if dbActive:
dbi.closeDB() # dump the database to file
runLog.important("Done with ARMI snapshots case.")

@staticmethod
Expand Down