Jimi Xenidis
IBM
20 Papers
229 Citations
Jimi Xenidis is an academic researcher from IBM. The author has contributed to research in topics: Computer science & Virtualization. The author has an hindex of 12, co-authored 20 publications. Previous affiliations of Jimi Xenidis include Qualcomm & University of Toronto.
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Papers
Virtualization for high-performance computing
TL;DR: The trends, motivations, and issues in hardware virtualization with emphasis on their value in HPC environments are discussed.
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•Proceedings Article
System Support for Online Reconfiguration
Craig A. N. Soules,Jonathan Appavoo,Kevin Hui,Robert W. Wisniewski,Dilma Da Silva,Gregory R. Ganger,Orran Krieger,Michael Stumm,Marc Alan Auslander,Michal Ostrowski,Bryan S. Rosenburg,Jimi Xenidis +11 more
- 01 Jan 2003
TL;DR: Support for online reconfiguration in the K42 operating system and initial experiences using it are described and some performance enhancements that have been achieved with K42’s online reconfigured mechanisms including adaptive algorithms, common case optimizations, and workload specific specializations are described.
Experience distributing objects in an SMMP OS
Jonathan Appavoo,Dilma Da Silva,Orran Krieger,Marc Alan Auslander,Michal Ostrowski,Bryan S. Rosenburg,Amos Waterland,Robert W. Wisniewski,Jimi Xenidis,Michael Stumm,Livio Soares +10 more
TL;DR: An object-oriented structure that minimizes sharing by providing a natural mapping from independent requests to independent code paths and data structures, and the selective partitioning, distribution, and replication of object implementations in order to improve locality are found to be effective in improving scalability of SMMP operating systems.
Improving virtualization in the presence of software managed translation lookaside buffers
Xiaotao Chang,Hubertus Franke,Yi Ge,Tao Liu,Kun Wang,Jimi Xenidis,Fei Chen,Yu Zhang +7 more
- 23 Jun 2013
TL;DR: This paper analyzes and quantifies the overhead of a pure software virtualization that is implemented over a software managed TLB, and describes the design of hardware extensions to support virtualization in systems with software managedTLBs to remove the most dominant overheads.
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A Case for High Availability in a Virtualized Environment (HAVEN)
Erin M. Farr,Richard E. Harper,L.F. Spainhower,Jimi Xenidis +3 more
- 04 Mar 2008
TL;DR: An extensible grammar that classifies the states and transitions of virtual machine images is introduced that defines how virtualization allows for simplified fault tolerance, making HAVENs accessible to the mainstream user.
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