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Understanding Iterator Flow

This page explains the various phases comprising Iterator::run_iterator(). Prior to Iterator construction, when command-line options are parsed, Boolean run mode flags corresponding to PRERUN, RUN, and POSTRUN are set in ParallelLibrary. If the user didn't specify any specific run modes, the default is for all three to be true (all phases will execute).

Iterator is constructed.

When called, run_iterator() sequences:

Iterator is destructed.