"Advising Big Data Transfer over Dedicated Connections based on Profiling Optimization," Daqing Yun, Qishi Wu, Nageswara S.V. Rao, and Rajkumar Kettimuthu, IEEE/ACM Transactions on Networking, 2019. (to appear)
"Spatiotemporal Real-Time Anomaly Detection for Supercomputing Systems," Qiao Kang, Ankit Agrawal, Alok Choudhary, Alex Sim, Keshang Wu, Rajkumar Kettimuthu, Pete Beckman, Zhengchun Liu, and Wei-keng Liao, Big Data Predictive Maintenance using Artificial Intelligence workshop held in conjunction with the IEEE International Conference on Big Data, Los Angeles, CA, Dec. 2019.
"Machine Learning Methods for Connection RTT and Loss Rate Estimation Using MPI Measurements Under Random Losses," Nageswara S. V. Rao, Neena Imam, Zhengchun Liu, Rajkumar Kettimuthu and Ian Foster, 2nd International Conference on Machine Learning for Networking, Paris, France, Dec. 2019 (Best paper award).
"Enabling Scientific Image Restoration Everywhere," Vibhatha Abeykoon, Zhengchun Liu, Rajkumar Kettimuthu, Geoffrey Fox, and Ian Foster, 1st Annual Workshop on Large-scale Experiment-in-the-Loop Computing (XLOOP) at IEEE/ACM Supercomputing (SC19) Conference on High Performance Computing Networking, Storage and Analysis, Denver, CO, Nov. 2019.
"Enhancing Streaming X-Ray Tomography with Deep Learning," Zhengchun Liu, Tekin Bicer, Rajkumar Kettimuthu, and Ian Foster, 3rd Deep Learning on Supercomputers Workshop (DLS) at IEEE/ACM Supercomputing (SC19) Conference on High Performance Computing Networking, Storage and Analysis, Denver, CO, Nov. 2019.
"Simulations of Photonic Quantum Networks for Performance Analysis and Experiment Design," Xiaoliang Wu, Joaquin Chung, Alexandar Kolar, Eugene Wang, Tian Zhong, Rajkumar Kettimuthu and Martin Suchara, IEEE/ACM SC19 Workshop on PHOTONICS: Photonics-Optics Technology Oriented Networking, Information, and Computing Systems, Denver, CO, Nov. 2019.
“Estimation of RTT and Loss Rate of Wide-Area Connections Using MPI Measurements," Nageswara S. V. Rao, Neena Imam, Zhengchun Liu, Rajkumar Kettimuthu, Ian Foster, IEEE/ACM SC19 Workshop on Innovating the Network for Data Intensive Science (INDIS), Denver, CO, Nov. 2019.
"Elastic Data Transfer Infrastructure for a Dynamic Science DMZ," Joaquin Chung, Zhengchun Liu, Rajkumar Kettimuthu and Ian Foster, 15th IEEE International Conference on eScience (eScience 2019), San Diego, CA, Sep. 2019. (pdf)
"MemXCT: Memory-Centric X-Ray CT Reconstruction with Massive Parallelization," Mert Hidayetoglu, Tekin Bicer, Simon Garcia de Gonzalo, Bin Ren, Doga Gursoy, Rajkumar Kettimuthu, Ian Foster, and Wen-Mei W. Hwu, IEEE/ACM Supercomputing (SC19) Conference on High Performance Computing Networking, Storage and Analysis, Nov. 2019.
"Data transfer between scientific facilities - bottleneck analysis, insights and optimizations," Yuanlai Liu, Zhengchun Liu, Rajkumar Kettimuthu, Nageswara S.V. Rao, Zizhong Chen, and Ian Foster, The 19th Annual IEEE/ACM International Symposium in Cluster, Cloud, and Grid Computing (CCGrid 2019), Larnaca, Cyprus, May 2019. (pdf)
“Orchestrating Intercontinental Advance Reservations with Software-Defined Exchanges,” Joaquin Chung, Rajkumar Kettimuthu, Nam Pho, Russ Clark and Henry Owen, Future Generation Computer Systems, 2019. (pdf)
"Comparative Performance Evaluation of High-performance Data Transfer Tools," Deepak Nadig, Eun-Sung Jung, Rajkumar Kettimuthu, Ian Foster, Nageswara S. V. Rao and Byrav Ramamurthy, 2018 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS), Indore, India, Dec. 2018. (pdf)
"Throughput Analytics of Data Transfer Infrastructures," Nageswara S. V. Rao, Qiang Liu, Zhengchun Liu, Rajkumar Kettimuthu, and Ian Foster, 13th European Alliance for Innovation (EAI) International Conference on Testbeds and Research Infrastructures for the Development of Networks and Communities (TRIDENTCOM) 2018, Shanghai, China, Dec. 2018. (Best paper award) (pdf)
"Building a Wide-Area File Transfer Performance Predictor: An Empirical Study," Zhengchun Liu, Rajkumar Kettimuthu, Prasanna Balaprakash, Nageswara S. V. Rao, and Ian Foster, 1st International Conference on Machine Learning for Networking, Paris, France, Nov. 2018. (pdf)
"Learning Concave-Convex Profiles of Data Transport Over Dedicated Connections," Nageswara S. V. Rao, Satyabrata Sen, Zhengchun Liu, Rajkumar Kettimuthu and Ian Foster, 1st International Conference on Machine Learning for Networking, Paris, France, Nov. 2018. (Best paper award) (pdf)
"FDQ: Advance Analytics over Real Scientific Array Datasets," Roee Ebenstein, Gagan Agrawal, Jiali Wang, Joshua Boley, and Rajkumar Kettimuthu, 14th IEEE International Conference on eScience, Amsterdam, Netherlands, Oct. 2018. (pdf)
“Calibers: A Bandwidth Calendaring Paradigm For Science Workflows,” Fatma Alali, Nathan Hanford, Eric Pouyoul, Raj Kettimuthu, Mariam Kiran, Ben Mack-Crane, Brian Tierney, Yatish Kumar, and Dipak Ghosal, Future Generation Computer Systems, 2018. (pdf)
"Regression-Based Analytics for Response Dynamics of SDN Solutions and Components," Nageswara S.V. Rao, Qiang Liu, Satyabrata Sen, Raj Kettimuthu, Josh Boley, Bradley W. Settlemyer, Hsing B. Chen, Dimitrios Katramatos, Emerging Trends in Softwarized Networks Workshop held in conjunction with IEEE Conference on Network Softwarization (NetSoft 2018), Montreal, Canada, June 2018. (pdf)
"Cross-geography Scientific Data Transfer Trends and User Behavior Patterns," Zhengchun Liu, Rajkumar Kettimuthu, Ian Foster, and Nageswara S.V. Rao, IEEE/ACM International Symposium on High-Performance Distributed Computing (HPDC), Tempe, AZ, June 2018. (pdf)
"Towards Autonomic Science Infrastructure: Architecture, Limitations, and Open Issues," Rajkumar Kettimuthu, Zhengchun Liu, Ian Foster, Pete Beckman, Alex Sim, Kesheng Wu, Wei-keng Liao, Qiao Kang, Ankit Agrawal, and Alok Choudhary, First International Workshop on Autonomous Infrastructure for Science (AI-Science’18) in conjunction with the IEEE/ACM International Symposium on High-Performance Distributed Computing (HPDC), Tempe, AZ, June 2018. (pdf)
"A Model Driven Intelligent Orchestration Approach to Service Automation in Large Distributed Infrastructures," Xi Yang, Tom Lehman, Rajkumar Kettimuthu, Linda Winkler, and Eun-Sung Jung, First International Workshop on Autonomous Infrastructure for Science (AI-Science’18) in conjunction with the IEEE/ACM International Symposium on High-Performance Distributed Computing (HPDC), Tempe, AZ, June 2018. (pdf)
"Virtual Environment for Testing Software-Defined Networking Solutions for Scientific Workflows," Qiang Liu, Nageswara S.V. Rao, Satyabrata Sen, Raj Kettimuthu, Josh Boley, Bradley W. Settlemyer, Hsing B. Chen, Dimitrios Katramatos, First International Workshop on Autonomous Infrastructure for Science (AI-Science’18) in conjunction with the IEEE/ACM International Symposium on High-Performance Distributed Computing (HPDC), Tempe, AZ, June 2018. (pdf)
“Towards a Smart Data Transfer Node,” Zhengchun Liu, Rajkumar Kettimuthu, Ian Foster and Pete Beckman, Future Generation Computer Systems, 2018. (pdf)
"Transferring a Petabyte in a Day,” Rajkumar Kettimuthu, Zhengchun Liu, David Wheeler, Ian Foster, Katrin Heitmann and Franck Cappello, Future Generation Computer Systems, 2018. (pdf)
“Software-Defined Network Solutions for Science Scenarios: Performance Testing Framework and Measurements,” Nageswara S.V. Rao, Qiang Liu, Satyabrata Sen, Raj Kettimuthu, Josh Boley, Bradley W. Settlemyer, Hsing B. Chen, Dimitrios Katramatos, Dantong Yu, 19th International Conference on Distributed Computing and Networking (ICDCN 2018), Varanasi, India, Jan. 2018. (pdf)
“A Mathematical Programming and Simulation Based Framework to Evaluate Cyberinfrastructure Design Choices,” Zhengchun Liu, Rajkumar Kettimuthu, Sven Leyffer, Prashant Palkar, and Ian Foster, The 13th IEEE International Conference on eScience, Auckland, New Zealand, Oct. 2017 (pdf)
“Real-Time Data Analysis and Autonomous Steering of Synchrotron Light Source Experiments,” Tekin Bicer, Doga Gursoy, Rajkumar Kettimuthu, Ian Foster, Bin Ren, Vincent De Andrede, and Francesco De Carlo, The 13th IEEE International Conference on eScience, Auckland, New Zealand, Oct. 2017 (pdf)
“On Analytics of File Transfer Rates Over Dedicated Wide-Area Connections,” Satya Sen, Nageswara Rao, Qiang Liu, Neena Imam, Rajkumar Kettimuhtu, and Ian Foster, First International Workshop on Workflow Science (WoWS 2017) in conjunction with the Thirteenth IEEE eScience Conference in Auckland, New Zealand, Oct. 2017 (pdf)
“Data Transfer Advisor with Transport Profiling Optimization,” Qishi Wu, Daqing Yun, Nageswara Rao, Qiang Liu, Rajkumar Kettimuthu, and Eunsung Jung, 42nd Annual IEEE Conference on Local Computer Networks, Singapore, Oct. 2017 (to appear).
“TCP Throughput Profiles Using Measurements Over Dedicated Connections,” Nageswara Rao, Qiang Liu, Satya Sen, Don Towsley, Gayane Vardoyan, Rajkumar Kettimuthu, and Ian Foster, IEEE/ACM International Symposium on High-Performance Distributed Computing (HPDC), Washington, DC, June 2017 (pdf)
“Explaining Wide Area Data Transfer Performance,” Zhengchun Liu, Prasanna Balaprakash, Rajkumar Kettimuthu, and Ian Foster, IEEE/ACM International Symposium on High-Performance Distributed Computing (HPDC), Washington, DC, June 2017 (pdf)
“Supporting Real-Time Jobs on the IBM Blue Gene/Q: Simulation-Based Study,” Daihou Wang, Eunsung Jung, David Foran, Manish Parashar, Rajkumar Kettimuthu, and Ian Foster, 21st International Workshop on Job Scheduling Strategies for Parallel Processing (JSSPP), Orlando, FL, June 2017 (pdf)
“Bridging the Gap between Peak and Average Loads on Science Networks,” Sam Nickolay, Eunsung Jung, Rajkumar Kettimuthu, and Ian Foster, Future Generation Computer Systems, 2017 (pdf)
“Advance Reservation Access Control Using Software-Defined Networking and Tokens,” Joaquin Chung, Eunsung Jung, Rajkumar Kettimuthu, Nageswara Rao, Ian Foster, Russ Clark, and Henry Owen, Future Generation Computer Systems, 2017 (pdf)
“Trace: A High-Throughput Tomographic Reconstruction Engine for Large-Scale Datasets,” Tekin Bicer, Doga Gursoy, Vincent De Andrade, Rajkumar Kettimuthu, William Scullin, Francesco De Carlo, and Ian Foster, Springer Advanced Structural and Chemical Imaging Journal’s Special Issue on “High-throughput X-ray Imaging and Algorithms”, 2017 (pdf)
“Towards Optimizing Large-Scale Data Transfers with End-to-End Integrity Verification,” Si Liu, Eun-Sung Jung, Rajkumar Kettimuthu, Xian-He Sun, and Michael Papka, 4th International Workshop on Distributed Storage Systems and Coding for Big Data, Washington, DC, Dec. 2016 (pdf)
“Experimental Analysis of File Transfer Rates Over Wide-Area Dedicated Connections,” Nageswara Rao, Qiang Liu, Satyabrata Sen, Greg Hinkel, Neena Imam, Ian Foster, Rajkumar Kettimuthu, Bradley Settlemyer, Chase Wu and Daqing Yun, The 18th International Conference on High Performance Computing and Communications (HPCC 2016), Dec. 2016. (Best paper award) (pdf)
“Measurement-Based Analysis of Performance Profiles and Dynamics of UDP Transport Protocols,” Qiang Liu, Nageswara Rao, Rajkumar Kettimuthu, Chase Wu, Daqing Yun and Ian Foster, 24th IEEE International Conference on Network Protocols (ICNP 2016), Nov. 2016 (pdf)
“Adaptive QoS for Data Transfers using Software-Defined Networking,” Joshua Boley, Eun-Sung Jung, and Rajkumar Kettimuthu, 2016 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS), Nov. 2016 (pdf)
"Improving Data Transfer Throughput with Direct Search Optimization," Prasanna Balaprakash, Vitali Morozov, Rajkumar Kettimuthu, Kalyan Kumaran, and Ian Foster, 45th International Conference on Parallel Processing (ICPP 2016), Aug. 2016 (pdf)
"Optimization of Tomographic Reconstruction Workflows on Geographically Distributed Resources," Tekin Bicer, Doga Gursoy, Rajkumar Kettimuthu, Francesco De Carlo and Ian T. Foster, Journal of Synchrotron Radiation, 2016 (pdf)
"Profiling Optimization for Big Data Transfer Over Dedicated Channels," Daqing Yun, Chase Wu, Nageswara Rao, Qiang Liu, Rajkumar Kettimuthu and Eun-Sung Jung, 25th International Conference on Computer Communication and Networks (ICCCN 2016), Aug. 2016 (pdf)
“Globus: Recent Enhancements and Future Plans,” Kyle Chard, Steve Tuecke, Ian Foster, Bryce Allen, Rachana Ananthakrishnan, Joe Bester, Ben Blaiszik, Vytas Cuplinskas, Raj Kettimuthu, Jack Kordas, Lukasz Lacinski, Matias Lidman, Mike Link, and Stu Martin, 5th Annual Conference of the Extreme Science and Engineering Discovery Environment (XSEDE16), July 2016 (pdf)
“Differentiated Scheduling of Response-Critical and Best-Effort Wide-Area Data Transfers,” Rajkumar Kettimuthu, Gagan Agrawal, P. Sadayappan, and Ian Foster, 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS), May 2016 (pdf)
“An elegant sufficiency: Load-aware differentiated scheduling of data transfers,” Rajkumar Kettimuthu, Gayane Vardoyan, Gagan Agrawal, P. Sadayappan, and Ian Foster, IEEE/ACM Supercomputing (SC15) Conference on High Performance Computing Networking, Storage and Analysis, Nov. 2015 (pdf)
“Utility-Based Scheduling for Bulk Data Transfers between Distributed Computing Facilities,” Xin Wang, Wei Tang, Rajkumar Kettimuthu, and Zhiling Lan, 8th International Workshop on Parallel Programming Models and Systems Software for High-End Computing (P2S2), Sept. 2015 (pdf)
“Sustained Wide-Area TCP Memory Transfers Over Dedicated Connections,” Nageswara Rao, Don Towsley, Gayane Vardoyan, Bradley Settlemyer, Ian Foster and Rajkumar Kettimuthu, IEEE International Symposium on High Performance and Smart Computing (IEEE HPSC 2015), Aug. 2015 (pdf)
“Rapid Tomographic Image Reconstruction via Large-Scale Parallelization,” Tekin Bicer, Doga Gursoy, Rajkumar Kettimuthu, Francesco De Carlo, Gagan Agrawal, and Ian Foster, 21st International European Conference on Parallel and Distributed Computing (Euro-Par 2015), Aug. 2015 (pdf)
“High-Performance Serverless Data Transfer over Wide-Area Networks,” Eun-Sung Jung and Rajkumar Kettimuthu, IEEE IPDPS Workshop on High Performance Big Data and Cloud Computing (HPBC), May 2015 (pdf)
“Long-haul Secure Data Transfer using Hardware-assisted GridFTP,” Mohammad Rashti, Gerald Sabin, and Rajkumar Kettimuthu, Future Generation Computer Systems, 2015 (pdf)
“Maximum a posteriori estimation of crystallographic phases in X-ray diffraction tomography,” Doga Gursoy, Tekin Bicer, Jonathan Almer, Rajkumar Kettimuthu, Francesco De Carlo, and Stuart Stock, Philosophical Transactions A, 2015 (pdf)
“Workflow Performance Improvement using Model-based Scheduling over Multiple Clusters and Clouds,” Ketan Maheshwari, Eun-Sung Jung, Jiayuan Meng, Vitali Morozov, Venkatram Vishwanath, and Rajkumar Kettimuthu, Future Generation Computer Systems, March 2015 (pdf)
“Profiling Transport Performance for Big Data Transfer over Dedicated Channels,” Daqing Yun, Chase Wu, Nageswara Rao, Bradley Settlemyer, Josh Lothian, Rajkumar Kettimuthu, and Venkatram Vishwanath, 2015 International Conference on Computing, Networking and Communications, Optical and Grid Networking Symposium (ICNC 2015), Feb. 2015 (pdf)
“Data-Aware Resource Scheduling for Multicloud Workflows: A Fine-Grained Simulation Approach,” Wei Tang, Jonathan Jenkins, Folker Meyer, Robert Ross, Rajkumar Kettimuthu, Linda Winkler, Xi Yang, Tom Lehman, and Narayan Desai, IEEE CloudCom Special Emerging Issues in Cloud (EIC) Workshop on Hot Topics in Cloud Computing, Dec. 2014 (pdf)
“Distributed Multipath Routing Algorithms for Data Center Networks,” Eun-Sung Jung, Venkatram Vishwanath, and Rajkumar Kettimuthu, IEEE/ACM SC14 Workshop on Data Intensive Scalable Computing Systems (DISCS-2014), Nov. 2014 (pdf)
“Enhancement of GridFTP through Hardware Offloading,” Mohammad Rashti, Gerald Sabin, and Rajkumar Kettimuthu, IEEE/ACM SC14 Workshop on Innovating the Network for Data-Intensive Science (INDIS), Nov. 2014 (pdf)
“Improving Multisite Workflow Performance using Model-based Scheduling,” Ketan Maheshwari, Eun-Sung Jung, Jiayuan Meng, Venkatram Vishwanath and Rajkumar Kettimuthu, The 43rd International Conference on Parallel Processing (ICPP 2014), Sep. 2014 (pdf)
“Cluster-wise Disk-to-Disk Transfer with Data Compression over Wide-Area Networks,” Eun-Sung Jung, Rajkumar Kettimuthu and Venkatram Vishwanath, Special Issue of Journal of Parallel and Distributed Computing: Scalable Systems for Big Data Management and Analytics, 2014 (pdf)
“Modeling and Optimizing Large-Scale Wide-Area Data Transfers,” Rajkumar Kettimuthu, Gayane Vardoyan, Gagan Agrawal and P. Sadayappan, 14th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid2014), May 2014 (pdf).
"Toward optimizing disk-to-disk transfer on 100G networks," Eun-Sung Jung, Rajkumar Kettimuthu and Venkat Vishwanath, IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS 2013), Dec. 2013 (pdf).
“SDQuery DSI: Integrating Data Management Support with a Wide Area Data Transfer Protocol,” Yu Su, Yi Wang, Gagan Agrawal and Rajkumar Kettimuthu, IEEE/ACM Supercomputing (SC13) Conference on High Performance Computing Networking, Storage and Analysis, Nov. 2013 (pdf).
"Pipelining/Overlapping Data Transfer for Distributed Data-Intensive Job Execution," Eun-Sung Jung, Ketan Maheshwari and Rajkumar Kettimuthu, 2013 International Workshops on Parallel Processing, Oct. 2013 (pdf).
“Model-Driven Multisite Workflow Scheduling Based on Task-Resource Adaptation,” Ketan Maheshwari, Eun-Sung Jung, Jiayuan Meng, Venkatram Vishwanath, and Rajkumar Kettimuthu, IEEE Cluster 2013, Sept. 2013 (pdf)
“Simulation of Terabit Data Flows for Exascale Applications,” Eun-Sung Jung, Rajkumar Kettimuthu and Venkatram Vishwanath, Workshop on Modeling and Simulation of Exascale Systems and Applications (MODSIM 2013), Sept. 2013 (pdf)
“Globus XIO Compression Driver: Enabling On-the-fly Compression in GridFTP,” Mattias Lidman, John Bresnahan and Rajkumar Kettimuthu, 19th International Conference on Parallel and Distributed Processing Techniques and Applications, July 2013 (pdf)
"Characterizing Throughput Bottlenecks for Secure GridFTP Transfers," Gayane Vardoyan, Rajkumar Kettimuthu, Steve Tuecke and Michael Link, 2013 International Conference on Computing, Networking and Communications, Internet Services and Applications Symposium, Jan 2013 (pdf).
"Exploiting Network Parallelism for Improving Data Transfer Performance," Daniel Gunter, Rajkumar Kettimuthu, Ezra Kissel, Martin Swany and Jason Zurawski, IEEE/ACM Annual SuperComputing Conference (SC12) Companion Volume, Nov 2012 (pdf).
"GridFTP based real-time data movement architecture for x-ray photon correlation spectroscopy at the Advanced Photon Source," Suresh Narayanan, Timothy Madden, Alec Sandy, Rajkumar Kettimuthu and Michael Link, IEEE eScience 2012 Workshop on eScience Meets the Instrument, Oct 2012 (pdf).
"High-Performance Data Management For Genome Sequencing Centers Using Globus Online: A Case Study," Dinanath Sulakhe, Rajkumar Kettimuthu and Utpal Dave, IEEE eScience 2012 Workshop on Extending High-Performance Computing Beyond its Traditional User Communities, Oct 2012 (pdf).
"Campus Bridging Made Easy via Globus Services," Ian Foster, Rajkumar Kettimuthu, Stuart Martin, Steve Tuecke, Daniel Milroy, Brock Palen, Thomas Hauser and Jazcek Braden, Proceedings of the first Conference of the Extreme Science and Engineering Discovery Environment (XSEDE’12), Jul 2012 (pdf)
"Instant GridFTP," Rajkumar Kettimuthu, Lukasz Lacinski, Michael Link, Karl Pickett, Steve Tuecke and Ian Foster, Proceedings of the Nineth High Performance Grid and Cloud Computing Workshop to be held in conjunction with International Parallel and Distributed Processing Symposium (IPDPS 2012), May 2012 (pdf)
"End-To-End Solution for Integrated Workload and Data Management using glideinWMS and Globus Online," Parag Mhashilkar, Zachary Miller, Rajkumar Kettimuthu, Gabriele Garzoglio, Burt Holzman, Cathrin Weiss, Xi Duan, and Lukasz Lacinski, Proceedings of International Conference on Computing in High Energy and Nuclear Physics (CHEP), May 2012 (pdf)
"Software as a Service for Data Scientists," Bryce Allen, John Bresnahan, Lisa Childers, Ian Foster, Gopi Kandaswamy, Rajkumar Kettimuthu, Jack Kordas, Michael Link, Stuart Martin, Karl Pickett and Steve Tuecke, Communications of the ACM, vol. 55, pp. 81-88, 2012 (pdf)
"Globus XIO Pipe Open Driver: Enabling GridFTP to Leverage Standard Unix Tools," Rajkumar Kettimuthu, Steven Link, John Bresnahan, Michael Link, and Ian Foster, Proceedings of the 2011 TeraGrid Conference, Salt Lake City, UT, July 2011 (pdf)
"FTProfiler: A New Profiling Tool for GridFTP Servers," Huong Luu, Rajkumar Kettimuthu, and Marianne Winslett, Proceedings of the 2011 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2011), July 2011 (pdf)
"Moving Huge Scientific Datasers over the Internet," Wantao Liu, Brian Tieman, Rajkumar Kettimuthu, Ian Foster, Concurrency and Computation: Practice and Experience, 2011 (pdf)
"Managed GridFTP," John Bresnahan, Michael Link, Rajkumar Kettimuthu, Ian Foster, Proceedings of the Eighth High Performance Grid and Cloud Computing Workshop held in conjunction with International Parallel and Distributed Processing Symposium (IPDPS 2011), May 2011 (pdf)
"A Data Management Framework for Distributed Biomedical Research Environments," Rajkumar Kettimuthu, Robert Schuler, David Keator, Martin Feller, Dingying Wei, Michael Link, John Bresnahan, Lee Liming, Joseph Ames, Ann Chervenak, Ian Foster, Carl Kesselman, IEEE eScience Workshop on High-Performance Computing in the Life Sciences, Dec 2010 (pdf)
"A Data Transfer Framework for Large-Scale Science Experiments," Wantao Liu, Brian Tieman, Rajkumar Kettimuthu, Ian Foster, 3rd International Workshop on Data Intensive Distributed Computing (DIDC 2010) in conjunction with 19th International Symposium on High Performance Distributed Computing (HPDC 2010), June 2010. (pdf)
"Lessons learned from moving Earth System Grid data sets over a 20 Gbps wide-area network," Rajkumar Kettimuthu, Alex Sim, Dan Gunter, Bill Allcock, Peer-Timo Bremer, John Bresnahan, Andrew Cherry, Lisa Childers, Eli Dart, Ian Foster, Kevin Harms, Jason Hick, Jason Lee, Michael Link, Jeff Long, Keith Miller, Vijaya Natarajan, Valerio Pascucci, Ken Raffenetti, David Ressman, Dean Williams, Loren Wilson, Linda Winkler, Proceedings of the 19th ACM International Symposium on High Performance Distributed Computing (HPDC 2010), June 2010. (pdf)
"High Performance Data Transfer in Grid Environment Using GridFTP over InfiniBand," Hari Subramoni, Ping Lai, Rajkumar Kettimuthu, Dhabaleswar Panda, Proceedings of the 10th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid 2010), May 2010. (pdf)
"An Adaptive Strategy for Scheduling Data-Intensive Applications in Grid Environments," Wantao Liu, Rajkumar Kettimuthu, Bo Li, Ian Foster, Proceedings of 17th IEEE International Conference on Telecommunications - Networking and Internet Computing (ICT 2010), Apr 2010 (pdf)
"GridFTP GUI: An Easy and Efficient Way to Transfer Data in Grid," Wantao Liu, Rajkumar Kettimuthu, Brian Tieman, Ravi Madduri, Bo Li and Ian Foster, Proceedings of the Third International Conference on Networks for Grid Applications (GridNets 2009), Sep 2009 (pdf)
"DataMover: A Lightweight Extensible Data Movement Framework for Grid Environment," Liu Wantao, Rajkumar Kettimuthu and Ravi Madduri, Proceedings of the 2009 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2009), July 2009 (pdf)
"GridFTP Multilinking," John Bresnahan, Michael Link, Rajkumar Kettimuthu and Ian Foster, Proceedings of the 2009 TeraGrid Conference, Arlington, VA, June 2009 (pdf)
"UDT as an Alternative Transport Protocol for GridFTP," John Bresnahan, Michael Link, Rajkumar Kettimuthu and Ian Foster, Proceedings of the 7th International Workshop on Protocols for Future, Large-Scale and Diverse Network Transports (PFLDNeT 2009), Tokyo, Japan, May 2009 (pdf)
"Communicating Security Assertions over the GridFTP Control Channel," Rajkumar Kettimuthu, Liu Wantao, Frank Siebenlist and Ian Foster, 4th IEEE International Conference on e-Science, Dec 2008 (pdf).
"Using Overlays For Efficient Data Transfer Over Shared Wide-Area Networks," Gaurav Khanna, Umit Catalyurek, Tahsin Kurc, Rajkumar Kettimuthu, P. Sadayappan, Ian Foster and Joel Saltz, Proceedings of the 2008 ACM/IEEE conference on Supercomputing (SC'08), Nov 2008 (pdf)
"Enabling Petascale Science: Data Management, Troubleshooting, and Scalable Science Services," Andrew Baranovski, Keith Beattie, Shishir Bharathi, Joshua Boverhof, John Bresnahan, Ann Chervenak, Ian Foster, Tim Freeman, Dan Gunter, Kate Keahey, Carl Kesselman, Rajkumar Kettimuthu, Nick Leroy, Michael Link, Miron Livny, Ravi Madduri, Gene Oleynik, Laura Pearlman, Robert Schuler and Brian Tierney, Journal of Physics: Conference Series, Volume 125, 2008. (Also appeared in Proceedings of SciDAC 2008 Conference, 13-17 July, 2008, Seattle, Washington, USA.) (pdf)
"A GridFTP Transport Driver for Globus XIO," Rajkumar Kettimuthu, Liu Wantao, Joseph Link and John Bresnahan, Proceedings of the 2008 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2008), July 2008 (pdf)
"Multi-Hop Path Splitting and Multi-Pathing Optimizations for Data Transfers over Shared Wide-Area Networks using GridFTP," Gaurav Khanna, Umit Catalyurek, Tahsin Kurc, Rajkumar Kettimuthu, P. Sadayappan, Joel Saltz and Ian Foster, Proceedings of the 17th IEEE International Symposium on High-Performance Distributed Computing (HPDC), June 2008 (pdf).
"A POSIX-like Client Interface for GridFTP," Rajkumar Kettimuthu, Liu Wantao, John Bresnahan and Joseph Link, Proceedings of the 2008 TeraGrid Conference, June 2008 (pdf).
"A Dynamic Scheduling Approach for Coordinated Wide-Area Data Transfers using GridFTP," Gaurav Khanna, Umit Catalyurek, Tahsin Kurc, Rajkumar Kettimuthu, P. Sadayappan and Joel Saltz, Proceedings of the 22nd IEEE International Parallel and Distributed Processing Symposium (IPDPS 2008), Apr 2008 (pdf)
"Semantics-based Distributed I/O for mpiBLAST," Pavan Balaji, Wu-chun Feng, Jeremy Archuleta, Heshan Lin, Rajkumar Kettimuthu, Rajeev Thakur and Xiaosong Ma, Proceedings of the 13th ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming (PPoPP), Feb 2008 (pdf).
"LEGS: A WSRF Service to Estimate Latency Between Arbitrary Hosts on the Internet," R. Vijayprasanth, R. Kavithaa and Rajkumar Kettimuthu, Proceedings of the 2007 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2007), June 2007 (pdf)
"GridFTP Pipelining," John Bresnahan, Michael Link, Rajkumar Kettimuthu, Dan Fraser and Ian Foster, Proceedings of the 2007 TeraGrid Conference, June 2007 (pdf)
"Harnessing Multicore Processors for High Speed Secure Transfer," John Bresnahan, Rajkumar Kettimuthu, Michael Link and Ian Foster, Proceedings of the 26th IEEE Infocom's High-Speed Networks Workshop, May 2007 (pdf)
"GridCopy: Moving Data Fast on the Grid," Rajkumar Kettimuthu, William Allcock, Lee Liming, John-Paul Navarro and Ian Foster, Proceedings of the Fourth High Performance Grid Computing Workshop held in conjunction with International Parallel and Distributed Processing Symposium (IPDPS 2007), Mar 2007 (pdf)
"XIOPerf: A Tool for Evaluating Network Protocols," John Bresnahan, Rajkumar Kettimuthu and Ian Foster, Proceedings of the Third International Workshop on Networks for Grid Applications (GridNets 2006), Oct 2006 (pdf)
"The Globus Striped GridFTP Framework and Server," William Allcock, John Bresnahan, Rajkumar Kettimuthu, Michael Link, Catalin Dumitrescu, Ioan Raicu and Ian Foster, Proceedings of the 2005 ACM/IEEE conference on Supercomputing (SC'05), Nov 2005 (pdf)
"Globus Data Storage Interface (DSI) - Enabling Easy Access to Grid Datasets," Rajkumar Kettimuthu, Michael Link, John Bresnahan and William Allcock, First DIALOGUE Workshop: Applications-Driven Issues in Data Grids, August 2005. (pdf)
"A Performance Study of Parallel FFT in Clos and Mesh Networks," Rajkumar Kettimuthu and Sankara Muthukrishnan, Proceedings of the 2005 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA 2005), June 2005 (pdf)
"Is Bluetooth Suitable for Large-Scale Sensor Networks?," Rajkumar Kettimuthu and Sankara Muthukrishnan, Proceedings of the 2005 International Conference on Wireless Networks (ICWN 2005), June 2005 (pdf)
"The Globus eXtensible Input/Output System (XIO): A protocol independent IO system for the Grid," William Allcock, John Bresnahan, Rajkumar Kettimuthu and Joseph Link, Proceedings of the Joint Workshop on High-Performance Grid Computing and High-Level Parallel Programming Models held in conjunction with International Parallel and Distributed Processing Symposium (IPDPS 2005), April 2005 (pdf)
"Selective Preemption Strategies for Parallel Job Scheduling," Rajkumar Kettimuthu, Vijay Subramani, Srividya Srinivasan, Thiagaraja B. Gopalsamy, D. K. Panda and P. Sadayappan, International Journal of High Performance Computing and Networking, Vol. 3, Nos. 2/3, pp. 122-152, 2005 (pdf)
"Improved Selective Acknowledgment Scheme for TCP," Rajkumar Kettimuthu and William Allcock, Proceedings of the 2004 International Conference on Internet Computing (IC 2004), June 2004 (pdf)
"Grid-enabled particle physics event analysis: experiences using a 10 Gb, high-latency network for a high-energy physics application," William Allcock, John Bresnahan, Julian Bunn, Sanjay Hedge, Joe Insley, Rajkumar Kettimuthu, Harvey Nueuman, Tony Rimovsky, Conrad Steenberg and Linda Winkler, Future Generation Computer Systems (FGCS), Volume 19, Issue 6, Pages 983-997, August 2003 (Special Issue on 3rd biennial International Grid applications-driven testbed event, Amsterdam, The Netherlands, 23-26 Sep 2002) (pdf)
"Scheduling of Parallel Jobs in a Heterogeneous Multi-Site Environment," Gerald Sabin, Rajkumar Kettimuthu, Arun Rajan and P. Sadayappan, Proceedings of 9th Workshop on Job Scheduling Strategies for Parallel Processing (JSSPP 2003), June 2003 (pdf)
"Effective Selection of Partition Sizes for Moldable Scheduling of Parallel Jobs," Srividya Srinivasan, Vijay Subramani, Rajkumar Kettimuthu, Praveen Holenarsipur and P. Sadayappan, Proceedings of 9th International Conference on High Performance Computing, Dec 2002 (pdf)
"Selective Buddy Allocation for Scheduling Parallel Jobs on Clusters," Vijay Subramani, Rajkumar Kettimuthu, Srividya Srinivasan, Jeanette Johnston and P. Sadayappan, Proceedings of IEEE International Conference on Cluster Computing (CLUSTER 2002), Sep 2002 (pdf)
"Selective Preemption Strategies for Parallel Job Scheduling," Rajkumar Kettimuthu, Vijay Subramani, Srividya Srinivasan, Thiagaraja B. Gopalsamy, D. K. Panda and P. Sadayappan, Proceedings of the 2002 International Conference on Parallel Processing (ICPP 2002), August 2002 (pdf)
"Characterization of Backfilling Strategies for Parallel Job Scheduling," Srividya Srinivasan, Rajkumar Kettimuthu, Vijay Subramani and P. Sadayappan, Proceedings of the 2002 International Workshops on Parallel Processing (held in conjunction with the 2002 International Conference on Parallel Processing, ICPP 2002), August 2002 (pdf)
"Distributed Job Scheduling on Computational Grids using Multiple Simultaneous Requests," Vijay Subramani, Rajkumar Kettimuthu, Srividya Srinivasan and P. Sadayappan, Proceedings of 11th IEEE Symposium on High Performance Distributed Computing (HPDC 2002), July 2002 (pdf)
"Selective Reservation Strategies for Backfill Job Scheduling," Srividya Srinivasan, Rajkumar Kettimuthu, Vijay Subramani and P. Sadayappan, Proceedings of 8th Workshop on Job Scheduling Strategies for Parallel Processing (JSSPP 2002), July 2002 (pdf)
Invited Papers
"Democratizing Network Reservations Through Application Aware Orchestration," Joaquin Chung, Rajkumar Kettimuthu, Nageswara Rao, and Ian Foster, 27th International Conference on Computer Communications and Networks (ICCCN), Hangzhou, China, July/Aug., 2018. (pdf)
"A comprehensive study of wide area data movement at a scientific computing facility," Zhengchun Liu, Rajkumar Kettimuthu, Ian Foster, and Yuanlai Liu, Scalable Network Traffic Analytics Workshop (SNTA) in conjunction with 38th IEEE International Conference on Distributed Computing Systems (ICDCS), Vienna, Austria, July 2018. (pdf)
“Experiments and Analyses of Data Transfers Over Wide-Area Dedicated Connections,” Nageswara Rao, Qiang Liu, Satya Sen, Jesse Hanley, Ian Foster, Rajkumar Kettimuthu, Chase Wu, Daqing Yun, Don Towsley, and Gayane Vardoyan, The 26th International Conference on Computer Communications and Networks (ICCCN 2017), Jul./Aug. 2017. (pdf)
“Towards Addressing the Challenges of Data-Intensive Computing on the Cloud,” Eun-Sung Jung and Rajkumar Kettimuthu, Cloud Cover Column in IEEE Computer Magazine, Dec. 2014 (pdf)
"Globus GridFTP: What's New in 2007," John Bresnahan, Michael Link, Gaurav Khanna, Zulfikar Imani, Rajkumar Kettimuthu and Ian Foster, Proceedings of the First International Conference on Networks for Grid Applications (GridNets 2007), Oct 2007 (pdf)
Technical Reports
“Workflows at experimental facilities: Use cases from the Advanced Photon Source,” Ian Foster, Tekin Bicer, Rajkumar Kettimuthu, Michael Wilde, Justin Wozniak, Ben Blaiszik, Kyle Chard, Francesco de Carlo, and Raymond Osborn, In DOE Workshop on the Future of Scientific Workflows, 2015 (pdf)
“GlobusOnline: Radical Simplification of Data Movement via SaaS,” Bryce Allen, John Bresnahan, Lisa Childers, Ian Foster, Gopi Kandaswamy, Rajkumar Kettimuthu, Jack Kordas, Michael Link, Stuart Martin, Karl Pickett and Steve Tuecke, Preprint CI-PP-05-0611, Computation Institute, 2011 (pdf)
"Reliable High-Performance Data Transfer via Globus Online," I. T. Foster, J. Boverhof, A. Chervenak, L. Childers, A. DeSchoen, G. Garzoglio, D. Gunter, B. Holzman, G. Kandaswamy, R. Kettimuthu, J. Kordas, M. Livny, S. Martin, P. Mhashilkar, Z. Miller. T. Samak, M.-H. Su, S. Tuecke, V. Venkataswamy, C. Ward, and C. Weiss, Preprint ANL/MCS-P1904-0611, June 2011 (pdf)
"Enabling Petascale Data Movement and Analysis," Ian Foster, Ann Chervenak, Dan Gunter, Kate Keahey, Ravi Madduri, Rajkumar Kettimuthu, Scientific Discovery through Advanced Computing (SciDAC) review, Winter 2009 (pdf)
“Experience Report on the Supercomputing 2009 Bandwidth Challenge from the Perspective of the Earth System Grid,” Alex Sim, Rajkumar Kettimuthu, Eli Dart, Dan Gunter, Vijaya Natarajan, Jeff Long, Jason Hick, and Dean Williams, Dec. 2009.
"Survey of Protocols and Mechanisms for Enhanced Transport over Long Fat Pipes," Eric He, Rajkumar Kettimuthu, Sanjay Hegde, Yunhong Gu, Michael Welzl, Pascale Primet, Jason Leigh and Chaoyue Xiong. Global Grid Forum White paper Draft (work in progress), Data Transport Research Group, 2003/2004 (pdf)
"Selective Preemption Strategies for Parallel Job Scheduling," Rajkumar Kettimuthu. Master's Thesis, Department of Computer and Information Science, The Ohio State University, March 2003 (pdf)
"An Evaluation of Preemption Strategies for Parallel Job Scheduling," Rajkumar Kettimuthu, Vijay Subramani, Srividya Srinivasan, Thiagaraja B. Gopalsamy, D.K. Panda, and P. Sadayappan. Technical Report OSU-CISRC-11/01-TR22, The Ohio State University, Nov 2001 (pdf)
Poster Presentations
“Modeling Analysis Computations and End-to-end Simulation-analysis Workflows,” Preeti Malakar, Gagan Agrawal, Tekin Bicer, Venkatram Vishwanath, Todd Munson, Rajkumar Kettimuthu and Ian Foster, Workshop on Modeling and Simulation of Systems and Applications (MODSIM 2016), Aug. 2016 (pdf)
“Improving throughput by dynamically adapting concurrency of data transfer,” Prasanna Balaprakash, Vitali Morozov, and Rajkumar Kettimuthu, IEEE/ACM Supercomputing (SC15) Conference on High Performance Computing Networking, Storage and Analysis, Nov. 2015 (pdf)
“Utility-Based Data Transfers Scheduling between Distributed Computing Facilities,” Xin Wang, Wei Tang, Rajkumar Kettimuthu, and Zhiling Lan, IEEE/ACM Supercomputing (SC15) Conference on High Performance Computing Networking, Storage and Analysis, Nov. 2015 (pdf)
“High Resolution Regional Climate Downscaled Data Transfer Using Globus,” Jiali Wang, V. Rao Kotamarthi, Gagan Agrawal, Rajkumar Kettimuthu, Roee Ebenstein, Yu Su, and Ti Leggett, GlobusWorld 2015, Argonne, IL, Apr. 2015 (pdf)
“A Middleware for High Performance Tomographic Data Analysis,” Tekin Bicer, Rajkumar Kettimuthu, Doga Gursoy, and Francesco De Carlo, First Integrated Imaging Initiative Workshop on Tomography and Ptychography, Argonne, IL, Sept. 2014 (pdf)
“Scalable Disk-to-Disk Data Transfer with Compression over Wide-Area Networks,” Eun-Sung Jung, Rajkumar Kettimuthu, and Venkatram Vishwanath, 3rd Greater Chicago Area System Research Workshop (GCASR), Chicago, IL, May 2014.
"Towards the Development of a Pipelined Data Movement with Globus Online," Mary Thomas, Rajkumar Kettimuthu, and Christopher Paolini, XSEDE 2013, Jul. 2013 (pdf)
“Toward Characterization of Data Movement in Large-Scale Scientific Applications”, Jun Yi, Rajkumar Kettimuthu, and Venkat Vishwanath, 8th IEEE International Conference on eScience, Oct. 2012. (pdf).
“Accelerating Data Movement to Support Lattice QCD Computations," Rajkumar Kettimuthu, et al., Lattice 2011 - International Symposium on Lattice Field Theory, Lake Tahoe, CA, Jul. 2011. (pdf)
"Whole-body 3D imaging at cell resolutions to define the phenomic landscape for genes, chemicals and diseases," Keith Cheng, Xuying Xin, Stephen Peckins, Jean Copper, Jonathan Cheng, Darin Clark, Rajkumar Kettimuthu, Xianghui Xiao, Francesco De Carlo, Patrick La Riviere, Gordon Kindlmann, Jonathan Silverstein, Ian Foster, and Vijay Agarwala, Experimental Biology 2011, Apr 2011
"High-throughput imaging, computation, morphometrics, and visualization for morphological phenomics," Keith Cheng, Xuying Xin, Steven Peckins, Jean Copper, Darin Clark, Donald Bigler, Rajkumar Kettimuthu, Xianghui Xiao, Francesco De Carlo, Patrick La Riviere, Gordon Kindlmann, Jonathan Silverstein, and Ian Foster, 4th Strategic Conference of Zebrafish Investigators, Asilomar, CA, January 29 – February 2, 2011 (ppt)
"Performance Characterization of GridFTP on 10 Gigabit Networks Using Hosts with 10Gb Network Interface Cards," Jamie Schwettmann and Rajkumar Kettimuthu, Oklahoma Supercomputing Symposium, Oct 2009 (pdf)
"Restricted Slow-Start for TCP," William Allcock, Sanjay Hegde and Rajkumar Kettimuthu, The 2005 IEEE International Conference on Cluster Computing 2005, Sep 2005. (ppt)
"A Characterization of Approaches to Parallel Job Scheduling," Gerald Sabin, Arun Rajan, Rajkumar Kettimuthu, and P. Sadayappan, Salishan Conference on High Speed Computing, 2003. (ppt)
"Appropriateness of Transport Mechanisms in Data Grid Middleware," Rajkumar Kettimuthu, Sanjay Hegde, William E. Allcock and John Bresnahan, 15th Annual SuperComputing Conference (SC 2002), Nov 2002. (ppt)