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.

Holistic energy and failure aware workload scheduling in Cloud datacenters
Li, X., Jiang, X., Garraghan, P., Wu, Z. 22/07/2017 In: Future Generation Computer Systems.
Journal article

Adaptive Speculation for Efficient 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