SC15 Austin, TX

Verification of Resilient Communication Models for the Simulation of a Highly Adaptive Energy-Efficient Computer

Authors: Mario Bielert (Technical University of Dresden), Kim Feldhoff (Technical University of Dresden), Florina M. Ciorba (University of Basel), Stefan Pfennig (Technical University of Dresden), Elke Franz (Technical University of Dresden), Thomas Ilsche (Technical University of Dresden), Wolfgang E. Nagel (Technical University of Dresden)

Abstract: Delivering high performance in an energy-efficient manner is of great importance in conducting research in computational sciences and in daily use of technology. From a computing perspective, a novel concept (the HAEC Box) has been proposed that utilizes innovative ideas of optical and wireless chip-to-chip communication to allow a new level of runtime adaptivity for future computers, which is required to achieve high performance and energy efficiency. HAEC-SIM is an integrated simulation environment designed for the study of the performance and energy costs of the HAEC Box running communication-intensive applications. In this work, we conduct a verification of the implementation of three resilient communication models in HAEC-SIM. The verification involves two NAS Parallel Benchmarks and their simulated execution on a 3D torus system with 16x16x16 nodes with Infiniband links. The simulation results are consistent with those of an independent implementation. Thus, the HAEC-SIM based simulations are accurate in this regard.

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