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Superficially, the Earliest Task First (ETF) heuristic [1] is attractive because it models heterogeneous messages passing through a heterogeneous network. On closer inspection, however, this is precisely the set of circumstances that can cause ETF to produce seriously sub-optimal schedules. In this paper we analyze the scope of applicability of ETF. We show that ETF has a good performance if messages...
The Hilbert (recursive) 2D mesh indexing, also known as a space filling curve, has recently found many applications in parallel computing and combinatorial optimisation due to its locality preserving property: given a pair of 2D mesh nodes with indices i and j, the Manhattan distance between these nodes is bounded as O(√i−j). For an application it is desirable that the constant factor hidden in the...