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Displaying 1-10 out of 10 total
Towards Virtually-Addressed Memory Hierarchies
Found in: High-Performance Computer Architecture, International Symposium on
By Xiaogang Qiu, Michel Dubois
Issue Date:January 2001
pp. 0051
Abstract: Currently cache hierarchies are indexed in parallel with a TLB but their tags are part of the physical address so that the memory hierarchy is physically addressed. This design faces problems as more concurrency is exploited in the processor core...
 
Tolerating Late Memory Traps in ILP Processors
Found in: Computer Architecture, International Symposium on
By Xiaogang Qiu, Michel Dubois
Issue Date:May 1999
pp. 0076
ILP processors can execute a large number of instructions at the same time. Thus it becomes more and more difficult to support traps efficiently. On the other hand a current trend in architecture is to support various memory functions in software rather th...
 
Technological Challenges in Emergency Response
Found in: IEEE Intelligent Systems
By Sharad Mehrotra,Xiaogang Qiu,Zhidong Cao,Austin Tate
Issue Date:July 2013
pp. 5-8
The guest editors discuss some recent advances in using intelligent systems for emergency management, as well as remaining technological challenges.
 
Heterogeneous and Stochastic Agent-Based Models for Analyzing Infectious Diseases' Super Spreaders
Found in: IEEE Intelligent Systems
By Wei Duan,Xiaogang Qiu,Zhidong Cao,Xiaolong Zheng,Kainan Cui
Issue Date:July 2013
pp. 18-25
The detection of super-spreading events in infectious disease is crucial for public health emergency response. Here, heterogeneous and stochastic agent-based models explore the mechanism of super-spreading events.
 
Backfilling under Two-tier Virtual Machines
Found in: 2012 IEEE International Conference on Cluster Computing (CLUSTER)
By Xiaocheng Liu,Chen Wang,Xiaogang Qiu,Bing Bing Zhou,Bin Chen,Albert Y. Zomaya
Issue Date:September 2012
pp. 514-522
The cloud computing paradigm attracts increasing amount of efforts to move high performance parallel applications to run in remote data cenetres. How to balance the performance requirements of parallel applications and the datacentre utilization is essenti...
 
Cloud-Based Simulation: The State-of-the-Art Computer Simulation Paradigm
Found in: 2012 ACM/IEEE/SCS 26th Workshop on Principles of Advanced and Distributed Simulation (PADS)
By Xiaocheng Liu,Xiaogang Qiu,Bin Chen,Kedi Huang
Issue Date:July 2012
pp. 71-74
The cloud computing paradigm attracts increasing amount of Modeling&Simulation (M&S) practitioners to perform their simulations in the cloud. Two issues, namely, the architecture of the Cloud-based Simulation (CSim) and the parallel simulat...
 
The Synonym Lookaside Buffer: A Solution to the Synonym Problem in Virtual Caches
Found in: IEEE Transactions on Computers
By Xiaogang Qiu, Michel Dubois
Issue Date:December 2008
pp. 1585-1599
To support dynamic address translation in today's microprocessors, the first-level cache is accessed in parallel with a Translation Lookaside Buffer (TLB). However, this current approach faces mounting problems. This paper introduces new ideas to enable th...
 
Moving Address Translation Closer to Memory in Distributed Shared-Memory Multiprocessors
Found in: IEEE Transactions on Parallel and Distributed Systems
By Xiaogang Qiu, Michel Dubois
Issue Date:July 2005
pp. 612-623
<p><b>Abstract</b>—To support a global virtual memory space, an architecture must translate virtual addresses dynamically. In current processors, the translation is done in a TLB (Translation Lookaside Buffer), before or in parallel with ...
 
Tolerating Late Memory Traps in Dynamically Scheduled Processors
Found in: IEEE Transactions on Computers
By Xiaogang Qiu, Michel Dubois
Issue Date:June 2004
pp. 732-743
<p><b>Abstract</b>—In the past few years, exception support for memory functions such as virtual memory, informing memory operations, software assist for shared memory protocols, or interactions with processors in memory has been advocate...
 
A Framework for Generating Geospatial Social Computing Environment
Found in: IEEE Intelligent Systems
By Rongqing Meng,Yuanzheng Ge,Zhidong Cao,Xiaogang Qiu,Kedi Huang
Issue Date:June 2014
pp. 1
Computational social science plays an important role in emergency management from a quantitative perspective. Reconstructing an individual-based social computing environment is crucial for both accurate computational experiments and determining optimal dec...
 
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