Experience with mean value analysis model for evaluating shared bus, throughput-oriented multiprocessors
Experience with mean value analysis model for evaluating shared bus, throughput-oriented multiprocessors
复制标题
拥有用于评估共享总线、面向吞吐量的多处理器的平均值分析模型的经验
DOI：
10.1145/107971.107982
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发表时间：
1991
影响因子：
3.6
通讯作者：
G. Sohi
中科院分区：
文献类型：
--
作者：
MenChow Chiang;G. Sohi
我们报告我们的经验与平均值分析的准确性，用于评估在面向吞吐量的环境中运行的共享总线多处理器的分析模型。在建立了具有电路交换和分离事务处理、流水线（分组交换）总线的多处理机模型之后，我们将模型的结果与5，376个多处理机配置的实际跟踪驱动模拟的结果进行了比较，发现分析模型在预测单个处理机吞吐量和部分总线利用率方面是准确的。对于处理器吞吐量，75%的情况下模型和仿真结果之间的差异在1%以内，94%的情况下在3%以内。对于部分总线利用率，70%的情况下模型结果与模拟结果的1%一致，92%的情况下模型结果与模拟结果的3%一致。这些模型在预测缓存未命中延迟方面不太准确。
We report on our experience with the accuracy of mean value analysis analytical models for evaluating shared bus multiprocessors operating in a throughput-oriented environment. Having developed separate models for multiprocessors with circuit switched and split transaction, pipelined (packet switched) buses, wc compare the results of the models with those of an actual trace-driven simulation for 5,376 multiprocessor configurations.We find that the analytical models are accurate in predicting the individual processor throughputs and partial bus utilizations. For processor throughput, the difference between the results of the models and simulation are within 1% for 75% of the cases and within 3% in 94% of all cases. For partial bus utilization the model results are with 1% of simulation results in 70% of all cases and within 3% in 92% of all cases. The models are less accurate in predicting cache miss latency.