publication . Article . 2009

Scalability of relaxed consistency models in NoC based multicore architectures

Abdul Naeem; Xiaowen Chen; Zhonghai Lu; Axel Jantsch;
Closed Access
  • Published: 06 Dec 2009
This paper studies realization of relaxed memory consistency models in the network-on-chip based distributed shared memory (DSM) multi-core systems. Within DSM systems, memory consistency is a critical issue since it affects not only the performance but also the correctness of programs. We investigate the scalability of the relaxed consistency models (weak, release consistency) implemented by using transaction counters. Our experimental results compare the average and maximum code, synchronization and data latencies of the two consistency models for various network sizes with regular mesh topologies. The observed latencies rise for both the consistency models as...
free text keywords: Cache coherence, Weak consistency, Release consistency, Parallel computing, Sequential consistency, Strong consistency, Consistency model, PRAM consistency, Computer science, Causal consistency, Distributed computing, Real-time computing
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