The if-else cases in lsqr.py were not exhaustive. They become exhaustive by changing ab > aa to ab >= aa.
From: Dmitriy Morozov <morozov@cs.duke.edu>
Date: Mon, 25 Feb 2008 11:29:27 -0500
State: new
Subject: Efficient EventQueue
Message-Id: <ebda8db3f9908e33-0-artemis@metatron>
category: kinetic
Change EventQueue to an efficient implementation, e.g., using a Fibonacci heap.