Blue Waters Directorate National Center for Supercomputing Applications University of Illinois at Urbana-Champaign 1205 W. Clark St. Urbana, IL 61801, USA Tel: +01 217 244 7736

I am a working in the Blue Waters Directorate at the University of Illinois at Urbana-Champaign. I am collaborating with William Kramer, Marc Snir, and Bill Gropp.

I am member of the MPI Forum, especially focussing on the standardization of next generation collective operations and process topologies. I am also ACM and IEEE member. My research interests include high speed networking, such as InfiniBand, Myrinet or 10 Gigabit Ethernet, applications in high performance computing, languages and libraries for parallel computing and simulation of large-scale parallel applications.

• Doctorate (Ph.D.), Computer Science, Indiana University Bloomington, 2008
• Diplom (M.Sc.), Computer Science, University of Technology Chemnitz, 2005

• High-performance and Parallel Computing
• Scientific Computing (Numerical Analysis, Linear Algebra)
• Parallel Languages and Libraries (e.g., MPI)
• Parallel Application Simulation
• High-speed Networking and Routing

[1] T. Hoefler, C. Siebert and A. Lumsdaine:
	Scalable Communication Protocols for Dynamic Sparse Data Exchange In Proceedings of the 2010 ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming, presented in Bangalore, India, pages 159--168, ACM, ISBN: 978-1-60558-708-0, Jan. 2010,

[2] T. Hoefler, A. Lumsdaine and J. Dongarra:
	Towards Efficient MapReduce Using MPI In Recent Advances in Parallel Virtual Machine and Message Passing Interface, 16th European PVM/MPI Users' Group Meeting, presented in Helsinki, Finland, Springer, Sep. 2009,

[3] T. Hoefler and J. L. Traeff:
	Sparse Collective Operations for MPI In Proceedings of the 23rd IEEE International Parallel & Distributed Processing Symposium, HIPS'09 Workshop, presented in Rome, Italy, ISSN: 1530-2075, ISBN: 978-1-4244-3750-4, May 2009,

[4] T. Hoefler, T. Schneider and A. Lumsdaine:
	Multistage Switches are not Crossbars: Effects of Static Routing in High-Performance Networks In Proceedings of the 2008 IEEE International Conference on Cluster Computing, presented in Tsukuba, Japan, IEEE Computer Society, ISSN: 1552-5244, ISBN: 978-1-4244-2640, Oct. 2008,

[5] T. Hoefler, P. Gottschling and A. Lumsdaine:
	Leveraging Non-blocking Collective Communication in High-performance Applications In Proceedings of the Twentieth Annual Symposium on Parallelism in Algorithms and Architectures, SPAA'08, presented in Munich, Germany, pages 113-115, Association for Computing Machinery (ACM), ISBN: 978-1-59593-973-9, Jun. 2008,

[6] T. Hoefler, A. Lumsdaine and W. Rehm:
	Implementation and Performance Analysis of Non-Blocking Collective Operations for MPI In Proceedings of the 2007 International Conference on High Performance Computing, Networking, Storage and Analysis, SC07, presented in Reno, USA, IEEE Computer Society/ACM, Nov. 2007,