Computer Science Research

Highlights

We present a quantum-classical algorithm to study the dynamics of the two-spatial-site Schwinger model on IBM's quantum computers. Using rotational symmetries,…

Sets and Groups provide useful abstractions for the User to create and manipulate persistent groups of PEs for collective operations. However, existing collective operations expect active sets to…

Reliability, availability and serviceability (RAS) logs of HPC resources, when closely investigated in spatial and temporal dimensions, can provide invaluable information regarding system status,…

High performance computing (HPC) applications are affected by multiple types of errors occurring in HPC systems which hinder with their ability to make forward progress and…

The assessment of application performance is a fundamental task in high-performance computing (HPC). The OpenSHMEM Benchmark (OSB) suite is a collection…

We report a quantum simulation of the deuteron binding energy on quantum processors accessed via cloud servers. We use a Hamiltonian from pionless effective…

Architectural trends such as technology scaling and near-threshold voltage operation are expected to make soft error resilience an important consideration in performance-…

When studying large-scale systems, researchers often face additional complication due to the scarcity of resources. Performing tens of thousands of fault injection…

Accurate component-level power measurements are nowadays essential for the design and optimization of high performance computing (HPC) systems and applications. Particularly, as more…

Today's High Performance Computing (HPC) systems are able to deliver performance in order of Petaflops due to fast computing devices, interconnect, and back-end storage…

In this work, we discover that workload characteristics, certain GPGPU cards, temperature and power consumption could have predictive or associative capabilities with GPGPU…

This study summarizes the performance impacts observed on four different Cray architectures available at the OLCF. The applications and benchmarks chosen were…

Sharing provenance across workflow management systems automatically is not currently possible, but the value of such a capability is high since it could greatly…

The pre-exascale systems will soon be deployed with a deep, complex memory hierarchy composed of many heterogeneous memories. This presents multiple challenges for users…

A broad array of techniques has been designed to understand application behavior under soft errors and to detect, isolate, and correct soft-error-impacted application state…