NDLI: Strober:fast and accurate sample-based energy simulation for arbitrary RTL

Content Provider	ACM Digital Library
Author	Bachrach, Jonathan Kim, Donggyu Zimmer, Brian Izraelevitz, Adam Celio, Christopher Kim, Hokeun Lee, Yunsup Asanović, Krste
Abstract	This paper presents a sample-based energy simulation methodology that enables fast and accurate estimations of performance and average power for arbitrary RTL designs. Our approach uses an FPGA to simultaneously simulate the performance of an RTL design and to collect samples containing exact RTL state snapshots. Each snapshot is then replayed in gate-level simulation, resulting in a workload-specific average power estimate with confidence intervals. For arbitrary RTL and workloads, our methodology guarantees a minimum of four-orders-of-magnitude speedup over commercial CAD gate-level simulation tools and gives average energy estimates guaranteed to be within 5% of the true average energy with 99% confidence. We believe our open-source sample-based energy simulation tool Strober can not only rapidly provide ground truth for more abstract power models, but can enable productive design-space exploration early in the RTL design process.
Starting Page	128
Ending Page	139
Page Count	12
File Format	PDF
ISSN	01635964
DOI	10.1145/3007787.3001151
Journal	ACM SIGARCH Computer Architecture News (CARN)
Volume Number	44
Issue Number	3
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1981-04-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Energy Fpga Power estimation Hardware Modeling Statistical sampling
Content Type	Text
Resource Type	Article

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