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Title: A Network Contention Model for the Extreme-scale Simulator

The Extreme-scale Simulator (xSim) is a performance investigation toolkit for high-performance computing (HPC) hardware/software co-design. It permits running a HPC application with millions of concurrent execution threads, while observing its performance in a simulated extreme-scale system. This paper details a newly developed network modeling feature for xSim, eliminating the shortcomings of the existing network modeling capabilities. The approach takes a different path for implementing network contention and bandwidth capacity modeling using a less synchronous and accurate enough model design. With the new network modeling feature, xSim is able to simulate on-chip and on-node networks with reasonable accuracy and overheads.
 [1] ;  [1]
  1. ORNL
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Conference: 34th IASTED International Conference on Modelling, Identification and Control (MIC) 2015, Innsbruck, Austria, 20150216, 20150217
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
ORNL LDRD Director's R&D; SC USDOE - Office of Science (SC)
Country of Publication:
United States