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نتیجه جستجو - مدلسازی دقیق

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1 CAMP: Accurate Modeling of Core and Memory Locality for Proxy Generation of Big-data Applications
CAMP: مدل سازی دقیق هسته و حافظه برای تولید پروکسی نرم افزارهای داده های بزرگ-2018
Fast and accurate design-space exploration is a critical requirement for enabling future hardware designs. However, big-data applications are often complex targets to evaluate on early performance models (e.g., simulators or RTL models) owing to their complex software-stacks, significantly long run times, system dependencies and the limited speed of performance models. To overcome the challenges in benchmarking complex big-data applications, in this paper, we propose a proxy generation methodology, CAMP that can generate miniature proxy benchmarks, which are representative of the performance of bigdata applications and yet converge to results quickly without needing any complex software stack support. Prior system-level proxy generation techniques model core locality features in detail, but abstract out memory locality modeling using simple stridebased models, which results in poor cloning accuracy for most applications. CAMP accurately models both core-performance and memory locality, along with modeling the feedback loop between the two. CAMP replicates core performance by modeling the dependencies between instructions, instruction types, controlflow behavior, etc. CAMP also adds a memory locality profiling approach that captures spatial and temporal locality of applications. Finally, we propose a novel proxy replay methodology that integrates the core and memory locality models to create accurate system-level proxy benchmarks. We demonstrate that CAMP proxies can mimic the original application’s performance behavior and that they can capture the performance feedback loop well. For a variety of real-world big-data applications, we show that CAMP achieves an average cloning accuracy of 89%. We believe this is a new capability that can facilitate for overall system (core and memory subsystem) design exploration
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