gem5是一款面向通用处理器(主要是cpu,也有部分的gpu支持)的体系结构模拟器,与vcs,verilator这类cycle-accurate的RTL仿真不同,gem5的建模是基于Python/C++,Python做配置,C++做底层实现,是一种事件驱动的非周期精确的仿真,速度更快,非常有利于在芯片规格定义阶段快速评估芯片的性能, @天外飞仙 大佬这里已经有比较完善...
GPU improvementsVega support: gfx900 (Vega) discrete GPUs are now both supported and tested with gem5-resources applications. Improvements to the VIPER coherence protocol to fix bugs and improve performance: this improves scalability for large applications running on relatively small GPU configurations, ...
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A GPU Ruby random tester has been added to help validate the correctness of the CPU and GPU Ruby coherence protocols as part of every kokoro check-in. This helps validate the correctness of the protocols before new changes are checked in. Currently the tester focuses on the protocols used ...
Simulation based Performance Study of Cache Coherence Protocols Cache coherence protocol maintains data consistency between different cores / processors in a shared memory multi-core (MC) / multi-processor (MP) system. ... NB Mallya,G Patil,B Raveendran - IEEE International Symposium on Nanoelectronic...
[0〇7〇]具体的,CC(cache coherence chip—缓存一致性控制芯片)模拟模块,用于模拟验证节点一致域间的协议转化;CC模拟模块通过SLICC协议描述语言实现其协议转化功能, 其功能可根据不同一致性层级划分为节点内部一致性维护(LP—local proxy)和节点间一致性维护(RP—remote proxy)两个部分,分别负责该CC直连节点内部和...
the synthetic cores send traffic by changing the logic in src/cpu/testers/garnet_synthetic_traffic/GarnetSyntheticTraffic.cc. Also, you can use Garnet 2.0 (or 3.0) with any other CPU/GPU traffic in SE or FS mode. Srikant From: MOHAMMAD HUMAM KHAN via gem5-users <gem5-users@gem5.org> ...
} else if (in_msg.Class == CoherenceClass:NAK) { trigger(Event:L0_DataNak, in_msg.addr, cache_entry, tbe); } else if (in_msg.Class == CoherenceClass:PUTX_COPY) { trigger(Event:L0_DataCopy, in_msg.addr, cache_entry, tbe); } else if (in_msg.Class == CoherenceClass:INV_AC...
See src/gpu-fs/README.md in gem5-resources and example scripts in configs/example/gpufs/ for example scripts which run GPU full system simulations.A GPU Ruby random tester has been added to help validate the correctness of the CPU and GPU Ruby coherence protocols as part of every kokoro ...
GPU improvementsVega support: gfx900 (Vega) discrete GPUs are now both supported and tested with gem5-resources applications. Improvements to the VIPER coherence protocol to fix bugs and improve performance: this improves scalability for large applications running on relatively small GPU configurations, ...