2004-07: MOLAR: Modular Linux and Adaptive Runtime Support for High-End Computing

This project is a multi-institution research effort that targets adaptive, reliable, and efficient operating and runtime system solutions for ultra-scale high-end scientific computing on the next generation of supercomputers. It addresses the challenges outlined by the U.S. Department of Energy (DOE) Forum to Address Scalable Technology for Runtime and Operating Systems (FAST-OS) and the U.S. National Coordination Office for Networking and Information Technology Research and Development (NCO/NITRD) High-End Computing Revitalization Task Force (HECRTF) activities by providing an adaptable runtime support for high-end computing operating and runtime systems. This research primarily concentrates on advancing computer reliability, availability and serviceability (RAS) management systems to run large and long-running applications efficiently on future ultra-scale computers, and on providing advanced monitoring and adaptation mechanisms for improved application performance and predictability.

Prominent Solutions

Funding Sources

Office of Advanced Scientific Computing Research, Office of Science, U.S. Department of Energy

Participating Institutions

Peer-reviewed Journal Publications

Xubin (Ben) He, Li Ou, Martha J. Kosa, Stephen L. Scott, and Christian Engelmann. A Unified Multiple-Level Cache for High Performance Cluster Storage Systems. International Journal of High Performance Computing and Networking (IJHPCN), volume 5, number 1-2, pages 97-109, November 14, 2007. Inderscience Publishers, Geneve, Switzerland. ISSN 1740-0562. DOI 10.1504/IJHPCN.2007.015768.
Christian Engelmann, Stephen L. Scott, David E. Bernholdt, Narasimha R. Gottumukkala, Chokchai (Box) Leangsuksun, Jyothish Varma, Chao Wang, Frank Mueller, Aniruddha G. Shet, and Ponnuswamy (Saday) Sadayappan. MOLAR: Adaptive Runtime Support for High-End Computing Operating and Runtime Systems. ACM SIGOPS Operating Systems Review (OSR), volume 40, number 2, pages 63-72, April 1, 2006. ACM Press, New York, NY, USA. ISSN 0163-5980. DOI 10.1145/1131322.1131337.

Peer-reviewed Conference Publications

Li Ou, Xubin (Ben) He, Christian Engelmann, and Stephen L. Scott. A Fast Delivery Protocol for Total Order Broadcasting. In Proceedings of the 16th IEEE International Conference on Computer Communications and Networks (ICCCN) 2007, pages 730-734, Honolulu, HI, USA, August 13-16, 2007. IEEE Computer Society, Los Alamitos, CA, USA. ISBN 978-1-42441-251-8. ISSN 1095-2055. DOI 10.1109/ICCCN.2007.4317904. Acceptance rate 29.1% (160/550).
Arun B. Nagarajan, Frank Mueller, Christian Engelmann, and Stephen L. Scott. Proactive Fault Tolerance for HPC with Xen Virtualization. In Proceedings of the 21st ACM International Conference on Supercomputing (ICS) 2007, pages 23-32, Seattle, WA, USA, June 16-20, 2007. ACM Press, New York, NY, USA. ISBN 978-1-59593-768-1. DOI 10.1145/1274971.1274978. Acceptance rate 23.6% (29/123).
Chao Wang, Frank Mueller, Christian Engelmann, and Stephen L. Scott. A Job Pause Service under LAM/MPI+BLCR for Transparent Fault Tolerance. In Proceedings of the 21st IEEE International Parallel and Distributed Processing Symposium (IPDPS) 2007, pages 1-10, Long Beach, CA, USA, March 26-30, 2007. ACM Press, New York, NY, USA. ISBN 978-1-59593-768-1. DOI 10.1109/IPDPS.2007.370307. Acceptance rate 26% (109/419).

Peer-reviewed Workshop Publications

Christian Engelmann, Hong H. Ong, and Stephen L. Scott. Middleware in Modern High Performance Computing System Architectures. In Lecture Notes in Computer Science: Proceedings of the 7th International Conference on Computational Science (ICCS) 2007, Part II: 4th Special Session on Collaborative and Cooperative Environments (CCE) 2007, pages 784-791, Beijing, China, May 27-30, 2007. Springer Verlag, Berlin, Germany. ISBN 3-5407-2585-5. ISSN 0302-9743. DOI 10.1007/978-3-540-72586-2_111.

Talks and Lectures

Christian Engelmann. System Resilience Research at ORNL in the Context of HPC. Invited talk at the Institut National de Recherche en Informatique et en Automatique (INRIA), Rennes, France, May 15, 2009.
Christian Engelmann. High-Performance Computing Research at Oak Ridge National Laboratory. Invited talk at the Reading Annual Computational Science Workshop, Reading, United Kingdom, December 8, 2008.
Christian Engelmann. Modular Redundancy in HPC Systems: Why, Where, When and How?. Invited talk at the 1st HPC Resiliency Summit: Workshop on Resiliency for Petascale HPC 2008, in conjunction with the 1st Los Alamos Computer Science Symposium (LACSS) 2008, Santa Fe, NM, USA, October 15, 2008.
Christian Engelmann. Resiliency for High-Performance Computing. Invited talk at the 2nd Collaborative and Grid Computing Technologies Workshop (CGCTW) 2008, Cancun, Mexico, April 10-12, 2008.
Christian Engelmann. Advanced Fault Tolerance Solutions for High Performance Computing. Seminar at the Laboratoire d'Analyse et d’Architecture des Systémes, Centre National de la Recherche Scientifique, Toulouse, France, February 11, 2008.
Christian Engelmann. Advanced Fault Tolerance Solutions for High Performance Computing. Invited talk at the Workshop on Trends, Technologies and Collaborative Opportunities in High Performance and Grid Computing (WTTC) 2007, Khon Kean, Thailand, June 8, 2007.
Christian Engelmann. Advanced Fault Tolerance Solutions for High Performance Computing. Invited talk at the Workshop on Trends, Technologies and Collaborative Opportunities in High Performance and Grid Computing (WTTC) 2007, Bangkok, Thailand, June 4-5, 2007.

Theses

Christian Engelmann. Symmetric Active/Active High Availability for High-Performance Computing System Services. PhD thesis, Department of Computer Science, University of Reading, UK, December 8, 2008. Thesis research performed at Oak Ridge National Laboratory. Advisor: Prof. Vassil N. Alexandrov (University of Reading).

Symbols: Abstract, Publication, Presentation, BibTeX Citation