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This talk will describe the primary interconnection network challenges as we attempt to build exascale computers over the coming decade. We discuss the role that optics will play in these systems, and key attributes for signaling technology from a system builder's perspective.
Cost-effective optics will enable a new class of interconnects that use high-radix network topologies to significantly improve performance while reducing cost. Hence, this paper discusses the design targets for HPC system interconnects, setting the context in which optical technology will be considered. The impact of network topology is also discussed and the case for high-radix networks, which create...
Most of today's HPC systems employ a single head node for control, which represents a single point of failure as it interrupts an entire HPC system upon failure. Furthermore, it is also a single point of control as it disables an entire HPC system until repair. One of the most important HPC system services running on the head node is the job and resource management. If it goes down, all currently...
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