Hi All, Our group has been using gem5 for architecture research for a long time, and we currently want to explore some ideas on modern multi-chiplet architectures, e.g. AMD's EPYC. We want to understand the tradeoffs of NoC design and coherence protocol when there are multiple chiplets connected together, each chiplet with its own NoC and caches and the LLC can be private or shared between chiplets.
To start with, we want to understand the current support in gem5 for such systems. Specifically: 1. Are there existing scripts/configurations modelling an AMD EPYC like systems? We couldn't find them in gem5 or gem5 resources. Any pointers would be appreciated. 2. If not and we have to model the system by ourselves, what is a good starting point? The most reasonable one to us is the CHI protocol, which seems to be flexible enough to model the coherence protocol. Thanks in advance for any help you can provide. Bests, Zhengrong *王 钲 荣* Zhengrong Wang Computer Science Department University of California, Los Angeles California, USA 90024 Work Email: seanyukig...@gmail.com Mobile :+1 310-447-4568
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