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XIOSim

XIOSim is a detailed user-mode microarchitectural simulator for the x86 architecture. It has detailed models for in-order (Atom-like) and out-of-order (Nehalem-like) cores and tightly-integrated power models. XIOSim supports multiprogram and multithreaded execution, regions-of-interest (including SimPoints). It runs at 100s KIPS per simulated core and uses cores on the simulation host to speed up multicore simulation (fastest runs use 2x the number of simulated cores). XIOSim builds up on and integrates a significant amount of others’ work:
* The out-of-order performance model from Zesto.
* The Pin binary instrumentation engine.
* The power models from McPAT.
* The DRAM models from DRAMSim2.

https://github.com/s-kanev/XIOSim

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