Recent device hardware trends enable a new approach to the design of network server
operating systems. In a traditional operating system, the kernel mediates access to device …

Current leadership-class machines suffer from a significant imbalance between their
computational power and their I/O bandwidth. While Moore's law ensures that the …

Time Warp is an optimistic synchronization protocol for parallel discrete event simulation that
coordinates the available parallelism through its rollback and antimessage mechanisms. In …

The increasing complexity of HPC systems has introduced new sources of variability, which
can contribute to significant differences in run-to-run performance of applications. With …

In this paper, a new methodology for the injection of single event upsets (SEU) in memory
elements is introduced. SEUs in memory elements can occur due to many reasons (eg …

The ZeptoOS project is develo** an open-source alternative to the proprietary software
stacks available on contemporary massively parallel architectures. The aim is to enable …

In this paper we illustrate scalable parallel performance for the TimeWarp synchronization
protocol on the L and P variants of the IBM BlueGene supercomputer. Scalable Time Warp …

Spintronic devices that use the spin of electrons as the information state variable have the
potential to emulate neuro-synaptic dynamics and can be realized within a compact form …

Operating system noise is a well-known problem that may limit application scalability on
large-scale machines, significantly reducing their performance. Though the problem is well …

Performance isolation is emerging as a requirement for High Performance Computing (HPC)
applications, particularly as HPC architectures turn to in situ data processing and application …