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Resource Considerations during Parallel Scheduling of Large Control Flow Dominated Applications
Grode,Jesper,Madsen,Jan 대한전자공학회 1995 ICVC : International Conference on VLSI and CAD Vol.4 No.1
This paper presents a technique to determine the possible parallelism between different control-structures in large hierarchical Control- and Data-Flow Graphs (CDFGs). The technique is based on a hierarchical bottom-up heuristic, which after resolving data-and control-dependencies between control-structures, parallelizes selected control-structures, subject to minimizing resource consumption. The purpose of the technique is to be able to predict resource consumption and estimate execution time for large CDFGs. The technique has been tested on several DCFGs with up to 1442 nodes. The results indicate, that the technique performs well; for one example it estimated a total speed-up of 44% at the expence of an estimated resource overhead of -0.1, and general the speed-up ranges from 8% to 44%.