Coordinated system level resource management for heterogeneous many-core platforms

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Title: Coordinated system level resource management for heterogeneous many-core platforms
Author: Gupta, Vishakha
Abstract: A challenge posed by future computer architectures is the efficient exploitation of their many and sometimes heterogeneous computational cores. This challenge is exacerbated by the multiple facilities for data movement and sharing across cores resident on such platforms. To answer the question of how systems software should treat heterogeneous resources, this dissertation describes an approach that (1) creates a common manageable pool for all the resources present in the platform, and then (2) provides virtual machines (VMs) with multiple `personalities', flexibly mapped to and efficiently run on the heterogeneous underlying hardware. A VM's personality is its execution context on the different types of available processing resources usable by the VM. We provide mechanisms for making such platforms manageable and evaluate coordinated scheduling policies for mapping different VM personalities on heterogeneous hardware. Towards that end, this dissertation contributes technologies that include (1) restructuring hypervisor and system functions to create high performance environments that enable flexibility of execution and data sharing, (2) scheduling and other resource management infrastructure for supporting diverse application needs and heterogeneous platform characteristics, and (3) hypervisor level policies to permit efficient and coordinated resource usage and sharing. Experimental evaluations on multiple heterogeneous platforms, like one comprised of x86-based cores with attached NVIDIA accelerators and others with asymmetric elements on chip, demonstrate the utility of the approach and its ability to efficiently host diverse applications and resource management methods.
Type: Dissertation
Date: 2011-08-24
Publisher: Georgia Institute of Technology
Subject: Coordinated scheduling
Heterogeneous many-core systems
Asymmetric multi-cores
Kinship model
Performance points
Virtual computer systems
Computing platforms
Computer architecture
Heterogeneous computing
High performance computing
Department: Computing
Advisor: Committee Chair: Professor Karsten Schwan; Committee Member: Doctor Jeffrey Vetter; Committee Member: Professor Calton Pu; Committee Member: Professor Sudhakar Yalamanchili; Committee Member: Rob Knauerhase
Degree: PhD

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