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butta's picture

Ali R. Butt

Professor
Computer Science
Electrical and Computer Engineering (by courtesy)
College of Engineering Faculty Fellow

Office: 2207 KWII
Email: butta@cs.vt.edu
Phone: 540-231-0489
Website: http://people.cs.vt.edu/butta/
Publication statistics: Google Scholar Profile
Office Hours: By appointment
  • About
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Research Interests
  • Center for High End Computing Systems
  • High End Computing and Computational Science
  • Storage Systems
  • Systems and Cybersecurity

Ali received his Ph.D. degree in Electrical and Computer Engineering from Purdue University in 2006. Ali is a recipient of an NSF CAREER Award (2008), an IBM Faculty Award (2008), a VT College of Engineering (COE) Dean's award for "Outstanding New Assistant Professor" (2009), an IBM Shared University Research Award (2009), and NetApp Faculty Fellowships (2011, 2015). Ali was named a VT COE Faculty Fellow in 2013. He has served as the Associate Editor for IEEE Transactions on Parallel and Distributed Systems (2013--present) and Sustainable Computing: Informatics and Systems (2010--present). He was selected to participate in National Academy of Engineering's USFOE Symposium in 2009, USJFOE in 2012, and also as an organizer for the USFOE in 2010. Ali's research interests are in operating systems, distributed systems, file and storage systems, cloud computing, grid environments, peer-to-peer systems, and self-organizing systems. At Virginia Tech. he leads the Distributed Systems & Storage Laboratory (DSSL).

Distributed Systems and Storage Laboratory

URL: http://research.cs.vt.edu/dssl/
Contact: Ali Butt

DSSL is interested in the design, development, and evaluation of next-generation storage and file systems. Specifically, the research focuses on tailoring these systems for growing data demands of modern high-end computing applications running on existing as well as emerging multicore architectures. To this end, we aim for innovation in systems that range from large-scale distributed setups to specialized kernel-level optimizations.

2015
Kamal, T., K. R. Bisset, A. R. Butt, and M. V. Marathe, "Cost Estimation of Parallel Constrained Producer-Consumer Algorithms", 23rd Euromicro International Conference on Parallel, Distributed, and Network-Based Processing (PDP), Turku, Finland, March 4-6, 2015, pp. 86–93, 2015.
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Anwar, A., A. Sailer, A. Kochut, C. O. Schulz, A. Segal, and A. R. Butt, "Scalable Metering for an Affordable IT Cloud Service Management", 2015 IEEE International Conference on Cloud Engineering (IC2E), Tempe, AZ, USA, IEEE, pp. 207 - 212, 2015.
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Cheng, Y., A. Gupta, and A. R. Butt, "An in-memory object caching framework with adaptive load balancing", Proceedings of the Tenth European Conference on Computer Systems - EuroSys '15, Bordeaux, France, ACM Press, pp. 1 - 16, 2015.
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Liu, F., X. Shu, D. Yao, and A. R. Butt, "Privacy-Preserving Scanning of Big Content for Sensitive Data Exposure with MapReduce", Proceedings of the 5th ACM Conference on Data and Application Security and Privacy (CODASPY), San Antonio, TX, USA, March 2-4, 2015, pp. 195–206, 2015.
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Liu, F., X. Shu, D. D. Yao, and A. Butt, "Privacy-Preserving Scanning of Big Content for Sensitive Data Exposure with MapReduce", ACM Conference on Data and Application Security and Privacy (CODASPY), San Antonio, TX, ACM, 03/2015.
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2014
Li, M., L. Zeng, S. Meng, J. Tan, L. Zhang, A. R. Butt, and N. Fuller, "MRONLINE: MapReduce online performance tuning", the 23rd international symposiumProceedings of the 23rd international symposium on High-performance parallel and distributed computing - HPDC '14, Vancouver, BC, CanadaNew York, New York, USA, ACM Press, pp. 165 - 176, 2014.
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Kamal, T., K. R. Bisset, A. R. Butt, and M. V. Marathe, "Load analysis and cost estimation of parallel constrained producer-consumer algorithms", 2014 IEEE International Conference On Cluster Computing (CLUSTER)2014 IEEE International Conference on Cluster Computing (CLUSTER), Madrid, Spain, IEEE, pp. 286 - 287, 2014.
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Anwar, A., K. R. Krish, and A. R. Butt, "On the use of microservers in supporting hadoop applications", 2014 IEEE International Conference On Cluster Computing (CLUSTER)2014 IEEE International Conference on Cluster Computing (CLUSTER), Madrid, Spain, IEEE, pp. 66 - 74, 2014.
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Hafeez, A., M. M. Rafique, and A. R. Butt, "Distributed Detection of Cancer Cells in High-Throughput Cellular Spike Streams", 2014 14th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid)2014 14th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing, Chicago, IL, USA, IEEE, pp. 774 - 783, 2014.
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Krish, K. R., A. Anwar, and A. R. Butt, "hatS: A Heterogeneity-Aware Tiered Storage for Hadoop", 2014 14th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid)2014 14th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing, Chicago, IL, USA, IEEE, pp. 502 - 511, 2014.
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R., K. K., S. M. Iqbal, M. M. Rafique, and A. R. Butt, "Towards energy awareness in Hadoop", Proceedings of the Fourth International Workshop on Network-Aware Data Management, {NDM} '14, New Orleans, Louisiana, USA, November 16-21, 2014, pp. 16–22, 2014.
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R., K. K., A. Anwar, and A. R. Butt, "[phi]Sched: {A} Heterogeneity-Aware Hadoop Workflow Scheduler", IEEE 22nd International Symposium on Modelling, Analysis & Simulation of Computer and Telecommunication Systems (MASCOTS 2014), Paris, France, September 9-11, 2014, pp. 255–264, 2014.
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R., K. K., S. M. Iqbal, and A. R. Butt, "{VENU:} Orchestrating SSDs in hadoop storage", 2014 IEEE International Conference on Big Data, Big Data 2014, Washington, DC, USA, October 27-30, 2014, pp. 207–212, 2014.
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2013
DSSL, DSSLPublications, , 2013.
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K.R., K., P. B. Guanying Wang, A. R. Butt, and C. Gniady, "On Reducing Energy Management Delays in Disks", Journal of Parallel and Distributed Computing, 2013.
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Kamal, T., K. Bisset, A. R. Butt, and M. M. Y. and Chungbaek, "Performance Modeling and Load Balancing for Large Scale Epidemiological Simulation", Proceedings of the ACM International Symposium on High Performance Parallel and Distributed Computing (HPDC ’13), 06/2013.
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Li, M., S. Mantri, P. Zhou, and A. R. Butt, "SMIO: I/O Similarity Aware Virtual Machine Management in Virtual Desktop Environments", Poster in the 27th ACM International Conference on Supercomputing (ICS 2013), Eugene, OR, 06/2013.
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Wang, G., A. Khasymski, K. R. Krish, and A. R. Butt, "Towards Improving MapReduce Task Scheduling Using Online Simulation Based Predictions", 2013 IEEE 21st International Symposium on Modelling, Analysis & Simulation of Computer and Telecommunication Systems (MASCOTS)2013 IEEE 21st International Symposium on Modelling, Analysis and Simulation of Computer and Telecommunication Systems, San Francisco, CA, USA, IEEE, pp. 323 - 327, 2013.
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Wang, G., A. Khasymski, K. R. Krish, and A. R. Butt, "Towards Improving MapReduce Task Scheduling Using Online Simulation Based Predictions", 2013 International Conference on Parallel and Distributed Systems (ICPADS)2013 International Conference on Parallel and Distributed Systems, Seoul, Korea (South), IEEE, pp. 299 - 306, 2013.
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Krish, K. R., A. Khasymski, A. R. Butt, S. Tiwari, and M. Bhandarkar, "AptStore: Dynamic storage management for hadoop", 2013 IEEE International Conference on Cluster Computing (CLUSTER)2013 IEEE International Conference on Cluster Computing (CLUSTER), Indianapolis, IN, USA, IEEE, pp. 1 - 5, 2013.
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Krish, K. R., A. Khasymski, A. R. Butt, S. Tiwari, and M. Bhandarkar, "AptStore: Dynamic Storage Management for Hadoop", 2013 IEEE 5th International Conference on Cloud Computing Technology and Science (CloudCom)2013 IEEE 5th International Conference on Cloud Computing Technology and Science, Bristol, United Kingdom, IEEE, pp. 33 - 41, 2013.
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Cheng, Y., A. Gupta, A. Povzner, and A. R. Butt, "High performance in-memory caching through flexible fine-grained services", the 4th annual SymposiumProceedings of the 4th annual Symposium on Cloud Computing - SOCC '13, Santa Clara, CaliforniaNew York, New York, USA, ACM Press, pp. 1 - 2, 2013.
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Krish, K. R., A. Khasymski, G. Wang, A. R. Butt, and G. Makkar, "On the use of shared storage in shared-nothing environments", 2013 IEEE International Conference on Big Data2013 IEEE International Conference on Big Data, Silicon Valley, CA, USA, IEEE, pp. 313 - 318, 2013.
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Monti, H. M., A. R. Butt, and S. S. Vazhkudai, "On Timely Staging of HPC Job Input Data", IEEE Transactions on Parallel and Distributed Systems, vol. 24, issue 9, pp. 1841 - 1851, 09/2013.
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2012
Zhao, Z., G. Wang, A. R. Butt, and M. M. V. and Maleq Khan, V. S. Anil Kumar, "SAHAD: Subgraph Analysis in Massive Networks Using Hadoop.", Proceedings of the 26th IEEE International Parallel and Distributed Processing Symposium (IPDPS), 05/2012.
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Hafeez, A., W. Asghar, S. I. M. M. Mustafa Rafique, and A. R. Butt, "GPU-based Real-Time Detection and Analysis of Biological Molecules using Solid-state Nanopores", Medical & Biological Engineering & Computing, 2012.
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Li, M., D. Subhraveti, A. R. Butt, and P. S. and Aleksandr Khasymski, "CAM: A Topology Aware Minimum Cost Flow Based Resource Manager for MapReduce Applications in the Cloud", Proceedings of the ACM Symposium on High-Performance Parallel and Distributed Computing (HPDC), 06/2012.
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Khasymski, A., M. M. Rafique, A. R. Butt, and S. V. D. S. S. and Nikolopoulos, "On the Use of GPUs in Realizing Cost-Effective Distributed RAID", Proceedings of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS), 08/2012.
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Li, M., S. Gaonkar, A. R. Butt, and D. K. K. and Voruganti, " Cooperative Storage-Level De-Duplication for I/O Reduction in Virtualized Data Centers", Proceedings of the IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS), 08/2012.
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Monti, H. M., A. R. Butt, and S. S. Vazhkudai, "On Timely Staging of HPC Job Input Data", IEEE Transactions on Parallel and Distributed Systems, pp. 1 - 1, 2012.
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2011
Members, D. S. S. L., DSSL Publications, , 2011.
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Rafique, M. M., A. R. Butt, and D. S. Nikolopoulos, "A capabilities-aware framework for using computational accelerators in data-intensive computing", Journal of Parallel and Distributed Computing, vol. 71, issue 2, pp. 185 - 197, 02/2011.
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Monti, H. M., A. R. Butt, and S. S. Vazhkudai, "Timely Result-Data Offloading for Improved HPC Center Scratch Provisioning and Serviceability", IEEE Transactions on Parallel and Distributed Systems, 2011.
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Rafique, M. M., A. R. Butt, and E. Tilevich, "Reusable software components for accelerator-based clusters", Journal of Systems and Software, 3/2011.
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Monti, H., A. R. Butt, and S. S. Vazhkudai, "CATCH: A Cloud-based Adaptive Data Transfer Service for HPC", Proceedings of the 25th IEEE International Parallel and Distributed Processing Symposium (IPDPS), Anchorage, AK., 05/2011.
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Prabhakar, R., S. S. Vazhkudai, Y. Kim, A. R. Butt, M. Li, and M. Kandemir, "Provisioning a Multi-Tiered Data Staging Area for Extreme-Scale Machines", Proceedings of the 31st International Conference on Distributed Computing Systems (ICDCS), Minneapolis, MN, 06/2011.
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Wang, G., A. R. Butt, H. Monti, and K. Gupta, "Towards Synthesizing Realistic Workload Traces for Studying the Hadoop Ecosystem", Proceedings of the 19th Annual Meeting of the IEEE International Symposium on Modeling, Analysis and Smulation of Computer and Telecommunication Systems (MASCOTS), Singapore, 07/2011.
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Rafique, M. M., N. R. S. and Cadambi, A. R. Butt, and S. Chakradhar, "Power Management for Heterogeneous Clusters: An Experimental Study", 2nd IEEE International Green Computing Conference (IGCC), Orlando, FL, IEEE, 07/2011.
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Rafique, M. M., S. C. K. and Rao, A. R. Butt, and S. Chakradhar, "Symphony: A Scheduler for Client-Server Applications on Coprocessor-based Heterogeneous Clusters", IEEE International Conference on Cluster , Austin, TX, IEEE, 09/2011.
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2010
Butt, A. R., and D. S. S. L. Members, DSSL Publications, , 2010.
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2009
Rafique, M. M., B. Rose, A. R. Butt, and D. S. Nikolopoulos, "Supporting MapReduce on Large-Scale Asymmetric Multi-Core Clusters.", In ACM Operating Systems Review: Special Issue on the Interaction among the OS, Compilers, and Multicore Processors, vol. 43(2), pp. 25–34, 04/2009.
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Schmidt, B. A., and A. R. Butt, "Facilitating Intermediate Node Discovery for Decen- tralized Offloading in High Performance Computing Centers.", Proceedings of IEEE SoutheastCon, 03/2009.
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2008
C.N., G., J. Sundararaman, A. R. Butt, and G. Back, ReplayCache: Exploiting Similarities for Predicting the Future, , San Jose, CA, 2008.
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Miller, C., A. R. Butt, and P. Butler, "On Utilization of Contributory Storage in Desktop Grids", Proc. International Parallel and Distributed Processing Symposium (IPDPS'08), Miami, FL, April, 2008.
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Rafique, M. M., A. R. Butt, and D. S. Nikolopoulos, "DMA-based Prefetching for I/O-intensive Workloads on the Cell Architecture", Proceedings of the 2008 ACM International Conference on Computing Frontiers, Ischia, Italy, Association for Computing Machinery, pp. 23-32, May, 2008.
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Rafique, M. M., A. R. Butt, and D. S. Nikolopoulos, "Supporting I/O-intensive Workloads on the Cell Architecture", Proceedings of the 6th USENIX Conference on File and Storage Systems, San Jose, CA, USENIX: The Advanced Computing Systems Association, pp. 2pp, 2008.
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Wang, G., A. R. Butt, and C. Gniady, "On the Impact of Disk Scrubbing on Energy Savings", USENIX Workshop on Power Aware Computing and Systems (HotPower), 12/2008.
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Monti, H. M., A. R. Butt, and S. S. Vazhkudai, "Just-in-time staging of large input data for supercomputing jobs", 2008 3rd Petascale Data Storage Workshop, PDSW2008 3rd Petascale Data Storage Workshop, Austin, TX, USA, IEEE, pp. 1 - 5, 2008.
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Monti, H., A. R. Butt, and S. S. Vazhkudai, "Timely offloading of result-data in HPC centers", the 22nd annual international conferenceProceedings of the 22nd annual international conference on Supercomputing - ICS '08, Island of Kos, GreeceNew York, New York, USA, ACM Press, pp. 124, 2008.
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2007
Yang, S., A. R. Butt, Y. C. Hu, and S. P. Midkiff, "Lightweight Monitoring of the Progress of Remotely Executing Computations", {Lecture Notes in Computer Science: Proceedings of the 18th International Workshop on Languages and Compilers for Parallel Computing}, vol. 4339, pp. 319–333, 2007.
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Butt, A. R., C. Gniady, and C. Y. Hu, "The Performance Impact of Kernel Prefetching on Buffer Cache Replacement Algorithms", IEEE Transactions on Computers, vol. 56, no. 7, pp. 889–908, 2007.
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Konanki, P., and A. R. Butt, "FlexiCache: {A} Flexible Interface for Customizing {L}inux File System Buffer Cache Replacement Policies", Work-in-Progress, 5th USENIX FAST, San Jose, CA, Feb., 2007.
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Miller, C., P. Butler, A. Shah, and A. R. Butt, "PeerStripe: A P2P-Based Large-File Storage for Desktop Grids", Proceedings of IEEE HPDC, Monterey, CA, June, 2007.
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Miller, C., P. Butler, A. Shah, and A. R. Butt, On Utilization of Contributory Storage in Desktop Grids, , no. TR-07-16: Virginia Polytechnic Institute and State University, Blacksburg, VA, May, 2007.
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Konanki, P., and A. R. Butt, "On Supporting Disconnected Operation in Grid Computing", Poster in IEEE International Conference on High Performance Computing (HiPC 2007), Goa, India, Dec., 2007.
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Monti, H., A. R. Butt, and S. S. Vazhkudai, "A result-data offloading service for HPC centers", the 2nd international workshopProceedings of the 2nd international workshop on Petascale data storage held in conjunction with Supercomputing '07 - PDSW '07, Reno, NevadaNew York, New York, USA, ACM Press, pp. 45, 2007.
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2006
Gniady, C., A. R. Butt, C. Y. Hu, and Y. - H. Lu, "Program Counter-Based Prediction Techniques for Dynamic Power Management", IEEE Transactions on Computers, vol. 55, no. 6, pp. 641–658, 2006.
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Yang, S., A. R. Butt, X. Fang, C. Y. Hu, and S. P. Midkiff, "A Fair, Secure and Trustworthy Peer-to-Peer Based Cycle-Sharing System", Journal of Grid Computing: Special issue on Global and Peer-to-Peer Computing, vol. 4, no. 3, pp. 265–286, 2006.
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Butt, A. R., T. A. Johnson, Y. Zheng, and C. Y. Hu, "Kosha: A Peer-to-Peer Enhancement for the Network File System", Journal of Grid Computing: Special issue on Global and Peer-to-Peer Computing, vol. 4, no. 3, pp. 323–341, 2006.
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2005
Butt, A. R., C. Gniady, and C. Y. Hu, AccuSim, , Oct., 2005.
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Zhang, R., A. R. Butt, and Y. C. Hu, "MetaStream: Topology-Aware Peer-to-Peer On-Demand Streaming", Proc. IFIP Networking Conference, Waterloo, Canada, pp. 1–14, May, 2005.
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Yang, S., A. R. Butt, Y. C. Hu, and S. P. Midkiff, "Trust but Verify: Monitoring Remotely Executing Programs for Progress and Correctness", Proc. ACM SIGPLAN PPoPP, Chicago, IL, pp. 196–205, June, 2005.
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Butt, A. R., C. Gniady, and C. Y. Hu, "The Performance Impact of Kernel Prefetching on Buffer Cache Replacement Algorithms", Proceedings of the ACM SIGMETRICS International Conference on Measurement and Modeling of Computer Systems, June, 2005.
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2004
Zhang, R., A. R. Butt, and Y. C. Hu, "Topology-Aware Peer-to-Peer On-Demand Streaming", Poster in 12th IEEE International Conference on Network Protocols (ICNP 2004), Berlin, Germany, Oct., 2004.
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2002
Goasguen, S., A. R. Butt, K. D. Colby, and M. Lundstrom, "Parallelization of Nanoscale Device Simulator nanoMOS 2.0 Using a 100 node Linux Cluster", Proc. IEEE Nanotechnology Conference, Washington, DC, Aug., 2002.
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Please see projects at: http://people.cs.vt.edu/~butta/

3000 Level Courses

  • CS3214: Computer Systems

5000 Level Courses

  • CS5204: Operating Systems

6000 Level Courses

  • CS6204: Advanced Topics in Systems

A Runtime Framework for Functional Partitioning of Multicores

Granting Institution: UT Battelle
Amount: $50,000

A Staged Data Delivery Tool for HPC

Granting Institution: Oak Ridge National Laboratory
Amount: $64,997

CAREER: A Scalable Hierarchical Framework for High Performance Data Storage

Granting Institution: National Science Foundation
Amount: $400,000

CSR: Medium: Pythia: An Application Analysis and Online Modeling Baed Prediction Framework for Scalable Resource Management

Granting Institution: NSF
Amount: $750,000

CSR: Small: Exploiting slowdowns for speedup in HPC systems

Granting Institution: NSF
Amount: $500,000

CSR: Small: Towards Realizing Cloud HPC: An Adaptive Programming Model for Accelerator Based Clusters

Granting Institution: National Science Foundation
Amount: $409,781

CSR:Small:Collaborative Research:Cloud Monitoring via Sensor Networking

Granting Institution: NSF
Amount: $258,000

DC: SMALL: Collaborative Research: Exploring Energy-Reliability Trade Offs In Data Storage Systems

Granting Institution: National Science Foundation
Amount: $200,028

Efficient Checkpointing Via Data Offloading to Tiered Storage in HPE Centers

Granting Institution: UT-Battelle, LLC ORNL
Amount: $1,075,965

I/O Load Balancing in Large-Scale Storage System

Granting Institution: ORNL
Amount: $104,999

Improving Scaling and Performance of Big Data Systems using Mini-Apps

Granting Institution: Oak Ridge National Laboratory
Amount: $52,000

Increasing Student Participation in Cluster Computing Through IEEE Cluster 2010

Granting Institution: National Science Foundation
Amount: $15,000

NSF Student Travel Support for the 2015 IEEE MASCOTS: October 2015: Atlanta GA

Granting Institution: NSF
Amount: $10,000

REU CAREER: Scalable Hiearchiacal Framework for High Performance Data Storage

Granting Institution: National Science Foundation
Amount: $60,000

REU: CAREER: A Scalable Hierarchical Framework for High Performance Data Storage

Granting Institution: National Science Foundation
Amount: $16,000

REU: CSR Small: Towards Realizing Cloud

Granting Institution: National Science Foundation
Amount: $16,000

REU: CSR: Small: Towards Realizing Cloud HPC: An Adaptive Programming Model for Accelerator-Based Clusters

Granting Institution: National Science Foundation
Amount: $16,000

REU: DC:SMALL: Collaborative Research: Exploring Energy-Reliability Trade-Offs in Data Storage Systems

Granting Institution: National Science Foundation
Amount: $16,000

Tolls and Techniques for Incorporating Disruptive Storage Technologies in HPC I/O Stack

Granting Institution: Oak Ridge National Laboratory
Amount: $85,868

U.S. - Pakistan International Planning Visit: Economial Computing Substrate for Developing Regions

Granting Institution: National Science Foundation
Amount:

 
 
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