Special Teaching Staff in Computer Engineering

Qualifications

Ph.D. in Computer Science (University of Cyprus, Successfully Defended July 2025)

MSc in High Performance Computing (University of Edinburgh, 2020)

BSc in Computer Science (University of Cyprus, 2019)

Specialization

Computer Science, Computer Architecture, Power Management

Employment Track

Special Teaching Staff in Computer Engineering, School of Sciences, UCLan Cyprus (Sep 2025 – now)

Special Scientist (Power of Modern Servers in Data Centers), University of Cyprus, Department of Computer Science, Computer Architecture Lab and Computer Architecture and Systems Team (2022-2025)

Teaching Assistant (Computer Architecture, Advanced Computer Architecture), University of Cyprus, Department of Computer Science (2021-2024)

Intern (Energy Efficient Servers), Huawei Zurich Research Center, Computing Systems Lab (February 2022-July 2022)

Special Scientist (Automatic Stress Test Generation), University of Cyprus, Department of Computer Science, Computer Architecture Lab (2020-2022)

Intern (Workload Characterization), University of Cyprus, Department of Computer Science, Computer Architecture Lab (2017-2018)

Memberships (Academic/Professional)

• IEEE
• HiPEAC

Research Interests

Computer architecture, energy efficient servers, workload characterization, reproducible performance evaluation, reliability and automatic stress-test generation, PDN voltage noise characterization and datacenter computing.

Roles and Responsibilities (including past roles and responsibilities)

Teaching and Course Leadership 

• Module Leadership/Delivery (UCLan Cyprus): Digital Electronics, Computer Architecture, Engineering, Research and Academic Skills and Engineering Professionalism

Selective Publications 

• Haris Volos, Stylianos Vassiliou, Georgia Antoniou, Davide B. Bartolini and Yiannakis Sazeides. “Leveraging Control-Flow Similarity to Reduce Branch Predictor Cold Effects in Microservices”. ACM/IEEE International Symposium on Computer Architecture (ISCA) 2025.
• Panteleimonas Chatzimiltis, Georgia Antoniou, Haris Volos and Yiannakis Sazeides. “SAGA: A Surrogate Assisted Genetic Algorithm for Fast CPU Power Virus Generation”. IEEE International Symposium on Performance Analysis of Systems and Software (ISPASS) 2025.
• Georgia Antoniou, Haris Volos, Jawad Haj Yahya, and Yiannakis Sazeides, “How long can you sleep? idle time system inefficiencies and opportunities,” in 1st International Workshop on Data Center Energy Efficiency (DCEE2025) 2025.
• Georgia Antoniou, Haris Volos, and Yiannakis Sazeides. “Taming Performance Variability caused by Client-Side Hardware Configuration”. IEEE International Symposium on Workload Characterization (IISWC) 2024.
• Georgia Antoniou, Davide Bartolini, Haris Volos, Marios Kleanthous, Zhe Wang, Kleovoulos Kalaitzidis, Tom Rollet, Ziwei Li, Onur Mutlu, Yiannakis Sazeides, and Jawad Haj Yahya. “Agile C-states: A Core C-state Architecture for Latency Critical Applications Optimizing both Transition and Cold-Start Latency.” ACM Trans. Archit. Code Optim. (TACO) 2024.
• Georgia Antoniou, Haris Volos, David Bartolini, Tom Rollet, Yiannakis Sazeides and Jawad Haj-Yahya. “AgilePkgC: An Agile System Idle State Architecture for Energy Proportional Datacenter Servers.” 55th Annual IEEE/ACM International Symposium on Microarchitecture (MICRO) 2022.
• Jawad Haj Yahya, Haris Volos, David Bartolini, Georgia Antoniou, Jeremie S. Kim, Zhe Wang, Kleovoulos Kalaitzidis, Tom Rollet, Zhi-Rui Chen, Ye Geng, Onur Mutlu and Yiannakis Sazeides. “AgileWatts: An Energy-Efficient CPU Core Idle-State Architecture for Latency-Sensitive Server Applications.” 55th Annual IEEE/ACM International Symposium on Microarchitecture (MICRO) 2022.
• Georgia Antoniou, Zacharias Hadjilambrou, Yiannakis Sazeides (University of Cyprus).2020. Performance Characterization of Simultaneous Multi-Threading (SMT) and Index Partitioning for an Online Document Search Application. International Symposium on Performance Analysis of Systems and Software (ISPASS) 2020. 
• Zacharias Hadjilambrou, Marios Kleanthous, Georgia Antoniou, Antoni Portero, and Yiannakis Sazeides. 2019. Comprehensive Characterization of an Open Source Document Search Engine. ACM Transactions on Architecture and Code Optimization (TACO) 2019.

Selective Conference and Seminar Presentations 

• Tutorial co-organizer and Presenter, HiPEAC Conference, Barcelona 2025
• Presenter (Paper), IISWC Conference, Vancouver 2024
• Presenter (Poster), ACACES Summer School (HiPEAC), Italy 2024
• Presenter (Paper), MICRO Conference, Chicago 2022
• Presenter (Paper), ISPASS Conference, Virtual 2020

 Selective Research Funding/ Grant Capture

• University of Cyprus-Internal, R-SHIELD, Researcher, 2024 – Present
• Huawei-Internal, Agile Power Management for Future Energy-Efficient Servers in Data Centers Running Latency-Critical Applications (ALPS), Researcher, 2022-2023
• European Community’s FP7 research programme, Harnessing Performance Variability (HARPA), Researcher, 2013-2016