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butta's picture

Ali R Butt

Assistant Professor

Office: 2227 KWII
Email: butta@cs.vt.edu
Phone: (540) 231-0489
Website: http://people.cs.vt.edu/butta/
Office Hours:
  • 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 Dean's award for "Outstanding New Assistant Professor" (2009), an IBM Shared University Research Award (2009), NetApp Faculty Fellowship (2011), and VT "Researcher of the Week" (2011). He was selected to participate in National Academy of Engineering's USFOE Symposium in 2009, 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.
2012
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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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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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., 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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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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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
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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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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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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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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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., 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
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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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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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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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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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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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
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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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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Butt, A. R., C. Gniady, and C. Y. Hu, AccuSim, , Oct., 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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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

4000 Level Courses

  • CS4284: Systems & Networking Capstone

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

CAREER: A Scalable Hierarchical Framework for High Performance Data Storage

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

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

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

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

Increasing Student Participation in Cluster Computing Through IEEE Cluster 2010

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

REU CAREER: Scalable Hiearchiacal Framework for High Performance Data Storage

Granting Institution: National Science Foundation
Amount:

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

Granting Institution: National Science Foundation
Amount:

 
 
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