System Software Research Team

The system software team focuses on the research and development of an advanced system software stack not only for the K computer but also for towards exa-scale computing. There are several issues in realizing the future computing. Two research topics are taken into account: i) scalable high performance file I/O and low-latency communication middleware, and ii) a scalable cache-aware, power-aware, and fault-aware operating system for next-generation supercomputers based on many core architectures.
System software stack developed by our team is designed not only for special dedicated supercomputers, but also for commodity-based cluster systems used in research laboratories. The system will be expected to be used as a research vehicle for developing an exa-scale supercomputer system.

Research Subjects

• System Software for High Performance Computing
• Operating System for Exa-scale Supercomputer
• Communication Facility for Exa-scale Supercomputer
• File System for Data-Intensive Science
• Fault-tolerant System

Publications

1. Y. Ohno, A. Hori, and Y. Ishikawa:
   "File Composition Technique to Improve the Performance of Accessing a Number of Small Files"
   The 2012 International Conference on Parallel and Distributed Processing Techniques and Applications
2. A. Hori, T. Kameyama, Y. Tsujita, M. Namiki and Y. Ishikawa:
   "An Efficient Kernel-Level Blocking MPI Implementation"
   Recent Advances in the Message Passing Interface Lecture Notes in Computer Science Volume 7490, 2012
3. Atsushi Hori, Jinpil Lee and Mitsuhisa Sato:
   "Audit: A new synchronization API for the GET/PUT Protocol"
   Journal of Parallel and Distributed Computing, Elsevier, 2012
4. B. Gerofi, A. Shimada, A. Hori and Y. Ishikawa:
   "Partially Separated Page Tables for Efficient Operating System Assisted Hierarchical Memory Management on Heterogeneous Architectures"
   Proceedings of IEEE 13th International Symposium on Cluster, Cloud, and Grid Computing (To appear)