SESSION: Scalable Algorithms for Large-Scale Systems
EVENT TYPE: Workshop
TIME: 9:00AM - 12:30PM
Organizer(s):Vassil Alexandrov, Christian Engelmann, Al Geist
ABSTRACT: Novel scalable scientific algorithms are needed to enable key science applications to exploit the computational power of large-scale systems. This is especially true for the current tier of leading petascale machines and the road to exascale computing. These extreme-scale systems require novel scientific algorithms to hide network and memory latency, have very high computation/communication overlap, have minimal communication, have no synchronization points. Scientific algorithms for multi-petaflop and exa-flop systems also need to be fault-tolerant and fault-resilient, since the probability of faults increases with scale. Resilience at the system software and at the algorithmic level is needed as a crosscutting effort. Finally, with the advent of heterogeneous compute nodes employing standard processors as well as GPGPUs, scientific algorithms need to match these architectures to achive maximum performance. Key science applications require novel mathematical models and system software that address the scalability and resilience challenges of current- and future-generation extreme-scale HPC systems.
Vassil Alexandrov - University of Reading
Christian Engelmann - Oak Ridge National Laboratory