Developing correct HPC applications continues to be a challenge as the number of cores
increases in today's largest systems. Most existing debugging techniques perform poorly at …

Maintaining leadership in HPC requires the ability to support simulations at large scales and
fidelity. In this study, we detail one of the most significant productivity challenges in …

Resiliency of exascale systems has quickly become an important concern for the scientific
community. Despite its importance, still much remains to be determined regarding how faults …

Fail-stop errors and Silent Data Corruptions (SDCs) are the most common failure modes for
High Performance Computing (HPC) applications. There are studies that address fail-stop …

The resurgence of current and upcoming multithreaded architectures and programming
models led us to conduct a detailed study to understand the potential of these platforms to …

Communications are a critical part of HPC simulations, and one of the main focuses of
application developers when scaling on supercomputers. While classical message passing …

HPC systems are notorious for operating at a small fraction of their peak performance, and
the ongoing migration to multi-core and multi-socket compute nodes further complicates …

Proposed exascale systems will present a number of considerable resiliency challenges. In
particular, DRAM soft-errors, or bit-flips, are expected to greatly increase due to the …

With technology scaling, transient faults are becoming an increasing threat to hardware
reliability. Commodity systems must be made resilient to these in-field faults through very …

As high-performance computing systems scale in size and computational power, the danger
of silent errors, ie, errors that can bypass hardware detection mechanisms and impact …