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Designed for capacity and capability, HPC I/O systems are inherently complex and shared among multiple, concurrent jobs competing for resources. Lack of centralized coordination and control often render the end-to-end I/O paths vulnerable to load imbalance and contention. With the emergence of data-intensive HPC applications, storage systems are further contended for performance and scalability. This...
The emergence of accelerator technology in current supercomputing systems is changing the landscape of supercom-puting architectures. Accelerators like GPGPUs and coprocessors are optimized for parallel computation while being more energy efficient. Their computational power per watt plays a crucial role in developing exaflop systems. Today's accelerators come with some limitations. They require a...
On the road to Exascale computing, novel communication architectures are required to overcome the limitations of host-centric accelerators. Typically, accelerator devices require a local host CPU to configure and operate them. This limits the number of accelerators per host system. Network-attached accelerators are a new architectural approach for scaling the number of accelerators and host CPUs independently...
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