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Displaying 1-35 out of 35 total
Recursive partitioning multicast: A bandwidth-efficient routing for Networks-on-Chip
Found in: Networks-on-Chip, International Symposium on
By Lei Wang, Yuho Jin, Hyungjun Kim, Eun Jung Kim
Issue Date:May 2009
pp. 64-73
Chip Multi-processor (CMP) architectures have become mainstream for designing processors. With a large number of cores, Networks-on-Chip (NOCs) provide a scalable communication method for CMP architectures. NOCs must be carefully designed to meet constrain...
 
ROAL: A Randomly Ordered Activation and Layering Protocol for Ensuring K-Coverage in Wireless Sensor Networks
Found in: Wireless and Mobile Communications, International Conference on
By Hogil Kim, Eun Jung Kim, Ki Hwan Yum
Issue Date:March 2007
pp. 4
K-coverage in wireless sensor networks (WSNs) is defined as ensuring that every point in the area is monitored by at least K different sensor nodes. In this paper, we propose a new K-coverage algorithm for sensor networks, called Randomly Ordered Activatio...
 
A Case for Handshake in Nanophotonic Interconnects
Found in: 2013 IEEE International Symposium on Parallel & Distributed Processing (IPDPS)
By Lei Wang,Jagadish Jayabalan,Minseon Ahn,Haiyin Gu,Ki Hwan Yum,Eun Jung Kim
Issue Date:May 2013
pp. 177-188
Nanophotonics has been proposed to design low latency and high bandwidth NOC for future Chip Multi-Processors (CMPs). Recent nanophotonic NOC designs adopt the token-based arbitration coupled with credit-based flow control, which leads to low bandwidth uti...
 
A Hybrid Buffer Design with STT-MRAM for On-Chip Interconnects
Found in: Networks-on-Chip, International Symposium on
By Hyunjun Jang,Baik Song An,Nikhil Kulkarni,Ki Hwan Yum,Eun Jung Kim
Issue Date:May 2012
pp. 193-200
As the chip multiprocessor (CMP) design moves toward many-core architectures, communication delay in Network-on-Chip (NoC) has been a major bottleneck in CMP systems. Using high-density memories in input buffers helps to reduce the bottleneck through incre...
 
Efficient Data Packet Compression for Cache Coherent Multiprocessor Systems
Found in: Data Compression Conference
By Baik Song An,Manhee Lee,Ki Hwan Yum,Eun Jung Kim
Issue Date:April 2012
pp. 129-138
Multiprocessor systems have been popular for their high performance not only for server markets but also for computing environments for general users. With the increased software complexity, networking overheads in multiprocessor systems are becoming one o...
 
Scalable and Efficient Bounds Checking for Large-Scale CMP Environments
Found in: Parallel Architectures and Compilation Techniques, International Conference on
By Baik Song An,Ki Hwan Yum,Eun Jung Kim
Issue Date:October 2011
pp. 193-194
We attempt to provide an architectural support for fast and efficient bounds checking for multithread work-loads in chip-multiprocessor (CMP) environments. Bounds information sharing and smart tagging help to perform bounds checking more effectively utiliz...
 
Communication-Aware Globally-Coordinated On-Chip Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Yuho Jin,Eun Jung Kim,Timothy Mark Pinkston
Issue Date:February 2012
pp. 242-254
With continued Moore's law scaling, multicore-based architectures are becoming the de facto design paradigm for achieving low-cost and performance/power-efficient processing systems through effective exploitation of available parallelism in software and ha...
 
Fast Secure Communications in Shared Memory Multiprocessor Systems
Found in: IEEE Transactions on Parallel and Distributed Systems
By Manhee Lee,Minseon Ahn,Eun Jung Kim
Issue Date:October 2011
pp. 1714-1721
Protection and security are becoming essential requirements in commercial servers. To provide secure memory and cache-to-cache communications, we presented Interconnect-Independent Security Enhanced Shared Memory Multiprocessor System (I^{2}SEMS), mainly f...
 
Pseudo-Circuit: Accelerating Communication for On-Chip Interconnection Networks
Found in: Microarchitecture, IEEE/ACM International Symposium on
By Minseon Ahn, Eun Jung Kim
Issue Date:December 2010
pp. 399-408
As the number of cores on a single chip increases with more recent technologies, a packet-switched on-chip interconnection network has become a de facto communication paradigm for chip multiprocessors (CMPs). However, it is inevitable to suffer from high c...
 
Design and Analysis of On-Chip Networks for Large-Scale Cache Systems
Found in: IEEE Transactions on Computers
By Yuho Jin, Eun Jung Kim, Ki Hwan Yum
Issue Date:March 2010
pp. 332-344
Switched networks have been adopted in on-chip communication for their scalability and efficient resource sharing. However, using a general network for a specific domain may result in unnecessary high cost and low performance when the interconnects are not...
 
Adaptive Prefetching Scheme Using Web Log Mining in Cluster-Based Web Systems
Found in: Web Services, IEEE International Conference on
By Heung Ki Lee, Baik Song An, Eun Jung Kim
Issue Date:July 2009
pp. 903-910
The main memory management has been a critical issue to provide high performance in web cluster systems.To overcome the speed gap between processors and disks,many prefetch schemes have been proposed as memory management in web cluster systems. However, in...
 
Adaptive data compression for high-performance low-power on-chip networks
Found in: Microarchitecture, IEEE/ACM International Symposium on
By Ki Hwan Yum, Eun Jung Kim
Issue Date:November 2008
pp. 354-363
With the recent design shift towards increasing the number of processing elements in a chip, high-bandwidth support in on-chip interconnect is essential for low-latency communication. Much of the previous work has focused on router architectures and networ...
 
Hybrid dynamic thermal management based on statistical characteristics of multimedia applications
Found in: Low Power Electronics and Design, International Symposium on
By Inchoon Yeo, Eun Jung Kim
Issue Date:August 2008
pp. 321-326
Recently multimedia applications become one of the most popular applications in mobile devices such as wireless phones, PDAs, and laptops. However, typical mobile systems are not equipped with cooling components, which eventually causes critical thermal de...
 
I2SEMS: Interconnects-Independent Security Enhanced Shared Memory Multiprocessor Systems
Found in: Parallel Architectures and Compilation Techniques, International Conference on
By Manhee Lee, Minseon Ahn, Eun Jung Kim
Issue Date:September 2007
pp. 94-103
Protection and security are becoming essential requirements in commercial servers. In this paper, we present a fast and efficient method for providing secure memory and cache-to-cache communications in shared memory multiprocessor systems that are becoming...
 
A Comprehensive Framework for Enhancing Security in InfiniBand Architecture
Found in: IEEE Transactions on Parallel and Distributed Systems
By Manhee Lee, Eun Jung Kim
Issue Date:October 2007
pp. 1393-1406
The InfiniBand™ Architecture (IBA) is a promising communication standard for building clusters and system area networks. However, the IBA specification has left out security aspects, resulting in potential security vulnerabilities which could be ...
 
Exploring IBA Design Space for Improved Performance
Found in: IEEE Transactions on Parallel and Distributed Systems
By Eun Jung Kim, Ki Hwan Yum, Chita R. Das, Mazin Yousif, José Duato
Issue Date:April 2007
pp. 498-510
<p><b>Abstract</b>—InfiniBand Architecture (IBA) is envisioned to be the default communication fabric for future system area networks (SANs) or clusters. However, IBA design is currently in its infancy since the released specification out...
 
A Domain-Specific On-Chip Network Design for Large Scale Cache Systems
Found in: High-Performance Computer Architecture, International Symposium on
By Yuho Jin, Eun Jung Kim, Ki Hwan Yum
Issue Date:February 2007
pp. 318-327
As circuit integration technology advances, the design of efficient interconnects has become critical. On-chip networks have been adopted to overcome scalability and the poor resource sharing problems of shared buses or dedicated wires. However, using a ge...
 
A PROactive Request Distribution (PRORD) Using Web Log Mining in a Cluster-Based Web Server
Found in: Parallel Processing, International Conference on
By Heung Ki Lee, Gopinath Vageesan, Ki Hwan Yum, Eun Jung Kim
Issue Date:August 2006
pp. 559-568
Widely adopted distributor-based systems forward user requests to a balanced set of waiting servers in complete transparency to the users. The policy employed in forwarding requests from the front-end distributor to the backend servers dominates the overal...
 
An Overview of Security Issues in Cluster Interconnects
Found in: Cluster Computing and the Grid, IEEE International Symposium on
By Manhee Lee, Eun Jung Kim, Ki Hwan Yum, Mazin Yousif
Issue Date:May 2006
pp. 25
Widespread use of cluster systems in diverse set of applications has spurred significant interest in providing high performance cluster interconnects. A major inefficiency in utilizing such interconnects has been the send/receive communication overheads at...
 
On Improving Performance and Conserving Power in Cluster-Based Web Servers
Found in: Web Services, IEEE International Conference on
By Heung Ki Lee, Gopinath Vageesan, Eun Jung Kim
Issue Date:July 2005
pp. 799-800
With the growing use of cluster systems in web servers, file distribution and database transactions, power conservation and efficiency have been identified as critical issues in the design of cluster systems. Widely adopted, distributor-based systems forwa...
   
A Holistic Approach to Designing Energy-Efficient Cluster Interconnects
Found in: IEEE Transactions on Computers
By Eun Jung Kim, Greg M. Link, Ki Hwan Yum, N. Vijaykrishnan, Mahmut Kandemir, Mary J. Irwin, Chita R. Das
Issue Date:June 2005
pp. 660-671
Designing energy-efficient clusters has recently become an important concern to make these systems economically attractive for many applications. Since the cluster interconnect is a major part of the system, the focus of this paper is to characterize and o...
 
Peak Power Control for a QoS Capable On-Chip Network
Found in: Parallel Processing, International Conference on
By Yuho Jin, Eun Jung Kim, Ki Hwan Yum
Issue Date:June 2005
pp. 585-592
In recent years integrating multiprocessors in a single chip is emerging for supporting various scientific and commercial applications, with diverse demands to the underlying on-chip networks. Communication traffic of these applications makes routers greed...
 
Security Enhancement in InfiniBand Architecture
Found in: Parallel and Distributed Processing Symposium, International
By Manhee Lee, Eun Jung Kim, Mazin Yousif
Issue Date:April 2005
pp. 105a
The InfiniBand™ Architecture (IBA) is a new promising I/O communication standard positioned for building clusters and System Area Networks (SANs). However, the IBA specification has left out security resulting in potential security vulnerabilities, which c...
 
A Heuristic for Peak Power Constrained Design of Network-on-Chip (NoC) Based Multimode Systems
Found in: VLSI Design, International Conference on
By Praveen Bhojwani, Rabi Mahapatra, Eun Jung Kim, Thomas Chen
Issue Date:January 2005
pp. 124-129
Designing NoC-based systems has become increasingly complex with support for multiple functionalities. Decisions regarding interconnections between the heterogeneous system components and routing of system communication affect system performance and power ...
 
A Source Identification Scheme against DDoS Attacks in Cluster Interconnects
Found in: Parallel Processing Workshops, International Conference on
By Manhee Lee, Eun Jung Kim, Cheol Won Lee
Issue Date:August 2004
pp. 354-361
Designing secure clusters has recently become a critical issue to make these systems robust to attacks from the Internet. The Distributed Denial of Service (DDoS) attack is one of the most serious problems in the current Internet. To defend against DDoS at...
 
Performance Enhancement Techniques for InfiniBand™ Architecture
Found in: High-Performance Computer Architecture, International Symposium on
By Eun Jung Kim, Ki Hwan Yum, Chita R. Das, Mazin Yousif, José Duato
Issue Date:February 2003
pp. 253
<p>InfiniBand™ Architecture (IBA) is envisioned to be the default communication fabric for future system area networks (SANs). However, the released IBA specification outlines only higher level functionalities, leaving it open for exploring various d...
 
MediaWorm: A QoS Capable Router Architecture for Clusters
Found in: IEEE Transactions on Parallel and Distributed Systems
By Ki Hwan Yum, Eun Jung Kim, Chita R. Das, Aniruddha S. Vaidya
Issue Date:December 2002
pp. 1261-1274
<p><b>Abstract</b>—With the increasing use of clusters in real-time applications, it has become essential to design high-performance networks with Quality-of-Service (QoS) guarantees. In this paper, we explore the feasibility of providing...
 
Integrated Admission and Congestion Control for QoS Support in Clusters
Found in: Cluster Computing, IEEE International Conference on
By Ki Hwan Yum, Eun Jung Kim, Chita R. Das, Mazin Yousif, José Duato
Issue Date:September 2002
pp. 325
<p>Admission and congestion control mechanisms are integral parts of any Quality of Service (QoS) design for networks that support integrated traffic. In this paper, we propose an admission control algorithm and a congestion control algorithm for clu...
 
Calculation of Deadline Missing Probability in a QoS Capable Cluster Interconnect
Found in: Network Computing and Applications, IEEE International Symposium on
By Eun Jung, Kim Ki Hwan Yum, Chita R. Das
Issue Date:October 2001
pp. 0036
The growing use of clusters in diverse applications, many of which have real-time constraints, requires Quality-of- Service (QoS) support from the underlying cluster interconnect. In this paper, we propose an analytical model that captures the characterist...
 
QoS Provisioning in Clusters: An Investigation of Router and NIC Design
Found in: Computer Architecture, International Symposium on
By Ki Hwan Yum, Eun Jung Kim, Chita R. Das
Issue Date:July 2001
pp. 0120
Abstract: Design of high performance cluster networks (routers) with Quality-of-Service (QoS) guarantees is becoming increasingly important to support a variety of multimedia applications, many of which have real-time constraints. Most commercial routers, ...
 
APCR: an adaptive physical channel regulator for on-chip interconnects
Found in: Proceedings of the 21st international conference on Parallel architectures and compilation techniques (PACT '12)
By Eun Jung Kim, Ki Hwan Yum, Lei Wang, Poornachandran Kumar
Issue Date:September 2012
pp. 87-96
Chip Multi-Processor (CMP) architectures have become mainstream for designing processors. With a large number of cores, Network-On-Chip (NOC) provides a scalable communication method for CMP architectures, where wires become abundant resources available in...
     
Efficient lookahead routing and header compression for multicasting in networks-on-chip
Found in: Proceedings of the 6th ACM/IEEE Symposium on Architectures for Networking and Communications Systems (ANCS '10)
By Eun Jung Kim, Ki Hwan Yum, Lei Wang, Poornachandran Kumar, Rahul Boyapati
Issue Date:October 2010
pp. 1-10
As technology advanced, Chip Multi-processor (CMP) architectures have emerged as a viable solution for designing processors. Networks-on-Chip (NOCs) provide a scalable communication method for CMP architectures as the number of cores is increasing. Althoug...
     
Hybrid dynamic thermal management based on statistical characteristics of multimedia applications
Found in: Proceeding of the thirteenth international symposium on Low power electronics and design (ISLPED '08)
By Eun Jung Kim, Inchoon Yeo
Issue Date:August 2008
pp. 383-384
Recently multimedia applications become one of the most popular applications in mobile devices such as wireless phones, PDAs, and laptops. However, typical mobile systems are not equipped with cooling components, which eventually causes critical thermal de...
     
Predictive dynamic thermal management for multicore systems
Found in: Proceedings of the 45th annual conference on Design automation (DAC '08)
By Chih Chun Liu, Eun Jung Kim, Inchoon Yeo
Issue Date:June 2008
pp. 1-30
Recently, processor power density has been increasing at an alarming rate resulting in high on-chip temperature. Higher temperature increases current leakage and causes poor reliability. In this paper, we propose a Predictive Dynamic Thermal Management (PD...
     
QoS provisioning in clusters: an investigation of Router and NIC design
Found in: Proceedings of the 28th annual international symposium on Computer architecture (ISCA '01)
By Chita R. Das, Eun Jung Kim, Ki Hwan Yum
Issue Date:June 2001
pp. 125-131
Design of high performance cluster networks (routers) with Quality-of-Service (QoS) guarantees is becoming increasingly important to support a variety of multimedia applications, many of which have real-time constraints. Most commercial routers, which are ...
     
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