Dr Peter Garraghan

Lecturer in Distributed Systems

Research Overview

Distributed systems, Cloud datacenters, dependability, energy-efficiency, resource management, data science.

I have two fully funded PhD positions available in the following areas:

  1. Data-driven Adaptive IoT Systems
  2. Scalable Fault-tolerance for Massive-scale Cloud Datacenters

If either of these positions interest you, kindly get in touch to discuss in more detail.

Adaptive Speculation for Ef´Čücient Internetware Application Execution in Clouds
Ouyang, X., Garraghan, P., Primas, B., McKee, D., Townend, P., Xu, J. 9/05/2017 In: ACM Transactions on Internet Technology.
Journal article

Holistic virtual machine scheduling in cloud datacenters towards minimizing total energy
Li, X., Garraghan, P., Jiang, X., Wu, Z., Xu, J. 28/03/2017 In: IEEE Transactions on Parallel and Distributed Systems. 14 p.
Journal article

A unified model for holistic power usage in cloud datacenter servers
Garraghan, P., Al-Anii, Y., Summers, J., Thompson, H., Kapur, N., Djemame, K. 6/12/2016 In: UCC '16 Proceedings of the 9th International Conference on Utility and Cloud Computing. New York : ACM p. 11-19. 9 p. ISBN: 9781450346160.
Conference contribution

Resource boxing: converting realistic cloud task utilization patterns for theoretical scheduling
Primas, B., Garraghan, P., Djemame, K., Shakhlevich, N. 6/12/2016 In: UCC '16 Proceedings of the 9th International Conference on Utility and Cloud Computing. New York : ACM p. 138-147. 10 p. ISBN: 9781450346160.
Conference contribution

Straggler root-cause and impact analysis for massive-scale virtualized cloud datacenters
Garraghan, P., Ouyang, X., Yang, R., McKee, D., Xu, J. 20/09/2016 In: IEEE Transactions on Services Computing. 14 p.
Journal article

An approach for modeling and ranking node-level stragglers in cloud datacenters
Ouyang, X., Garraghan, P., Wang, C., Townend, P., Xu, J. 1/09/2016 In: 2016 IEEE International Conference on Services Computing (SCC) . IEEE p. 673-680. 8 p. Electronic ISBN: 9781509026289.
Conference contribution

Reducing late-timing failure at scale: straggler root-cause analysis in cloud datacenters
Ouyang, X., Garraghan, P., Yang, R., Townend, P., Xu, J. 18/08/2016
Conference paper

Virtual machine level temperature profiling and prediction in cloud datacenters
Wu, Z., Li, X., Garraghan, P., Jiang, X., Ye, K., Zomaya, A.Y. 11/08/2016 In: 2016 IEEE 36th International Conference on Distributed Computing Systems (ICDCS). IEEE p. 735-736. 2 p. Electronic ISBN: 9781509014828.
Conference contribution

Tolerating transient late-timing faults in cloud-based real-time stream processing
Garraghan, P., Perks, S., Ouyang, X., McKee, D., Moreno, I.S. 21/07/2016 In: 2016 IEEE 19th International Symposium on Real-Time Distributed Computing (ISORC) . IEEE p. 108-115. 8 p. Electronic ISBN: 9781467390323.
Conference contribution

Straggler detection in parallel computing systems through dynamic threshold calculation
Ouyang, X., Garraghan, P., McKee, D., Townend, P., Xu, J. 23/05/2016 In: 2016 IEEE 30th International Conference on Advanced Information Networking and Applications (AINA) . IEEE p. 414-421. 8 p. Electronic ISBN: 9781509018581 .
Conference contribution

Reliable computing service in massive-scale systems through rapid low-cost failover
Yang, R., Zhang, Y., Garraghan, P., Feng, Y., Ouyang, J., Xu, J., Zhang, Z., Li, C. 21/03/2016 In: IEEE Transactions on Services Computing. 15 p.
Journal article

SEED: a scalable approach for cyber-physical system simulation
Garraghan, P., McKee, D., Ouyang, X., Webster, D., Xu, J. 14/10/2015 In: IEEE Transactions on Services Computing. 9, 2, p. 199-212. 14 p.
Journal article

Timely long tail identification through agent based monitoring and analytics
Garraghan, P., Ouyang, X., Townend, P., Xu, J. 13/07/2015 In: 2015 IEEE 18th International Symposium on Real-Time Distributed Computing . IEEE p. 19-26. 8 p. Electronic ISBN: 9781479987818.
Conference contribution

Workload estimation for improving resource management decisions in the cloud
Patel, J., Jindal, V., Yen, I., Bastani, F., Xu, J., Garraghan, P. 29/04/2015 In: 2015 IEEE Twelfth International Symposium on Autonomous Decentralized Systems. IEEE p. 25-32. 8 p. Electronic ISBN: 9781479982615.
Conference contribution

Fault-tolerant dynamic deduplication for utility computing
Leesakul, W., Townend, P., Garraghan, P. 18/09/2014 In: 2014 IEEE 17th International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing. IEEE p. 397-404. 8 p. Electronic ISBN: 9781479944309.
Conference contribution

Multi-tenancy in cloud computing
AlJahdali, H., Albatli , A., Garraghan, P., Townend, P., Lau, L., Xu, J. 12/06/2014 In: 2014 IEEE 8th International Symposium on Service Oriented System Engineering (SOSE). IEEE p. 344-351. 8 p. Electronic ISBN: 9781479936168.
Conference contribution

Analysis, modeling and simulation of workload patterns in a large-scale utility cloud
Moreno, I.S., Garraghan, P., Townend, P., Xu, J. 1/04/2014 In: IEEE Transactions on Cloud Computing. 2, 2, p. 208-221. 14 p.
Journal article

An empirical failure-analysis of a large-scale cloud computing environment
Garraghan, P., Townend, P., Xu, J. 6/03/2014 In: 2014 IEEE 15th International Symposium on High-Assurance Systems Engineering. IEEE p. 113-120. 8 p.
Conference contribution

An analysis of failure-related energy waste in a large-scale cloud environment
Garraghan, P., Moreno, I.S., Townend, P., Xu, J. 3/02/2014 In: IEEE Transactions on Emerging Topics in Computing. 2, 2, p. 166-180. 15 p.
Journal article

An analysis of the server characteristics and resource utilization in Google Cloud
Garraghan, P., Townend, P., Xu, J. 13/06/2013 In: 2013 IEEE International Conference on Cloud Engineering (IC2E). IEEE p. 124-131. 8 p. ISBN: 9780769549453.
Conference contribution

An approach for characterizing workloads in Google Cloud to derive realistic resource utilization models
Moreno, I.S., Garraghan, P., Townend, P. 10/06/2013 In: 2013 IEEE 7th International Symposium on Service Oriented System Engineering (SOSE). IEEE p. 49-60. 12 p. Electronic ISBN: 9780769549446.
Conference contribution

Using Byzantine fault-tolerance to improve dependability in federated cloud computing
Garraghan, P., Townend, P., Xu, J., Yang, X., Sui, P. 1/06/2013 In: International Journal of Software and Informatics. 7, 2, p. 221-237. 17 p.
Journal article

Real-time fault-tolerance in federated cloud environments
Garraghan, P., Townend, P., Xu, J. 10/05/2012 In: 2012 15th IEEE International Symposium on Object/Component/Service-Oriented Real-Time Distributed Computing Workshops (ISORCW). IEEE p. 118-123. 6 p. Electronic ISBN: 9780769546698.
Conference contribution

Byzantine fault-tolerance in federated cloud computing
Garraghan, P., Townend, P., Xu, J. 26/01/2012 In: 2011 IEEE 6th International Symposium on Service Oriented System Engineering (SOSE). IEEE p. 280-285. 6 p. Electronic ISBN: 9781467304108.
Conference contribution

Dependability in federated cloud environments
Garraghan, P., Townend, P., Xu, J. 26/09/2011
Conference paper

Cloud computing dependability
Garraghan, P., Townend, P., Xu, J. 2011
Conference paper