Talks & Seminars
Title: Multi-Layer Memory Resiliency
Prof. Nikil Dutt, University of California, Irvine, USA
Date & Time: July 18, 2017 15:00
Venue: Conference Room, C Block, 01st Floor, Dept. of CSE, Kanwal Rekhi (KReSIT) Bldg.
With memories increasingly occupying a significant fraction of a chip’s real-estate, and the critical need to provision reliable, high-performance memory bandwidth for emerging applications, there is a need to build multi-layer hardware/software stacks that can adapt and opportunistically exploit manufacturing, operational and environmental variations in order to meet system performance/responsiveness, minimize power consumption, and increase system lifetime. The overall memory hierarchy is also highly vulnerable to the adverse effects of variability and operational stress. This talk presents the concept of variability-aware memory management for nanoscale computing systems, building on the efforts of the NSF Variability Expeditions Project. After describing the challenges for dependability across the memory hierarchy, we show how to opportunistically exploit hardware variations in on-chip and off-chip memory at the system level through the deployment of variation-aware software stacks. Specific approaches to be presented include: hardware- and software-assisted memory virtualization for achieving dependable application execution; OS-level exploitation of DRAM power variation to save energy; incorporating heterogeneous memory organizations (e.g., SRAMs, Non-Volatile Memories) to increase dependability and enhance system objectives (e.g., performance, energy, system lifetime), and semantic retention of application intent to enhance dependability through exploitation of application semantics across multiple abstraction levels, including applications, compilers, run-time systems, and hardware platforms.
Speaker Profile:
Nikil Dutt is a Chancellor's Professor of CS, Cognitive Sciences, and EECS at the University of California, Irvine. He received a PhD from the University of Illinois at Urbana-Champaign (1989). His research interests are in embedded systems design automation, computer architecture, optimizing compilers, system specification techniques, distributed embedded systems, and brain-inspired architectures and computing. He has received numerous best paper awards and is coauthor of 7 books. Professor Dutt served as EiC of ACM TODAES (2003-2008) and as AE for ACM TECS and IEEE TVLSI. He has served on the steering, organizing, and program committees of several premier CAD and Embedded System Design conferences and workshops, and serves or has served on the advisory boards of ACM SIGBED, ACM SIGDA, ACM TECS and IEEE ESL. Professor Dutt is a Fellow of the ACM and the IEEE, and recipient of the IFIP Silver Core Award.
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