Fig. 3
From: Energy-aware memory management for embedded multidimensional signal processing applications
a Algorithmic specification and b the graph of variation of the storage requirement for the signals A, B, C, D, and E. The abscissae are the numbers of assignment instructions executed at run time; the ordinates are the memory locations (or words, whose width in bytes is known) in use. The minimum data storage is 125,193 locations; interchanging the two loops, the storage requirement significantly decreases to only 576 locations