Scheduling the DAG, in Section 4.1.

	The second paragraph includes this statement:

		If this [dependence in the DAG] is a side-effect
		dependence between read or write nodes that
		potentially access the same location, the constraint
		imposed on their relative positions in time is, by
		design, exactly the right one; ...

	This is just not true.  The stated timing conventions for read
	and write operations do result in the proper constraints for a
	read following a write, but not for a write following a read
	or a write.  The actual constraints imposed by the compiler
	include an extra unit-time delay in these cases.

Figure 4.4:

	The node labeled "N" near the upper right should be drawn with
	a double circle.