Abstract
In this paper, a configurable tree-based multicast routing algorithm (CFG) is proposed to generate different shaped trees. According to the characteristics of communication in application, varying the scaling factors can get different shaped multicast paths, leading to variable in performance, bandwidth efficiency and power overhead. The small-sized packet setting experiment results show that, CFG with small scaling factor gives similar performance to VCTM (virtual circuit tree multicasting) [1] in saving certain power (64 cores: 11.7%, 256 cores: 23.7%), while CFG with large scaling factor performs similarly to OPT [2]. The large-sized packet setting experiment gives the conclusion that as the packet size increases, CFG with large scaling factor is favorite for getting more power saving while giving similar performance to other algorithms.
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