Aktuelles

Two Papers accepted at the SAMOS 2024 Conference

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We got two papers accepted at the SAMOS 2024 Conference:

„HW-EPOLL: Hardware-Assisted User Space Event Notification for Epoll Syscall“, authored by Lars Nolte, Tim Twardzik, Camille Jalier, Jiyuan Shi, Thomas Wild and Andreas Herkersdorf:
In Linux, many applications use the epoll() kernel functionality for efficient event notifications, but notifying about user space events requires a costly syscall. To mitigate this, we introduced HW-EPOLL, which allows generating events purely in user space by writing the event into a shared kernel/user space data structure and offloading thread notification to a hardware unit. This approach reduces CPU cycles for user space event generation by 90% while still supporting multiple event sources.

„EPIC-Q : Equivalent-Policy Invariant Comparison enhanced transfer Q-learning for run-time SoC performance-power optimization“, authored by Anmol Prakash Surhonne, Haitham S. Fawzi, Florian Maurer, Oliver Lenke, Michael Meidinger, Thomas Wild and Andreas Herkersdorf:
Q-learning is a popular technique to learn and control the frequency of a processor via DVFS to achieve a QoS target within a power budget. The QoS target and the budget are dynamically changed in runtime  to adhere to system and application requirement. The change in Qos target and budget results in different reward functions. This work proposes a transfer learning technique to accelerate the learning process of Q-learning agents for changing reward functions using Equivalent Policy Invariant Comparison (EPIC) as a metric.

The SAMOS International Conference on Embedded Computer Systems: Architectures, Modeling and Simulation is a well established event that every year brings together researchers from both academia and industry for exchanging and discussing new technical ideas on the island of Samos, Greece. This year is already the 24th edition of this conference and it will take place from June 29 till July 4, 2024 (https://samos-conference.com/wp/). 

Congratulation to the authors of the two papers.