NAMD is a parallel molecular dynamics code designed for high‐performance simulation of
large biomolecular systems. NAMD scales to hundreds of processors on high‐end parallel …

In this paper we describe how we improved the effective performance of ASCI Q, the world's
second-fastest supercomputer, to meet our expectations. Using an arsenal of performance …

Summary form only given. We present a parallel simulator-BigSim-for predicting
performance of machines with a very large number of processors. The simulator provides …

Failures are likely to be more frequent in systems with thousands of processors. Therefore,
schemes for dealing with faults become increasingly important. In this paper, we present a …

This book highlights the use of Charm++ in a wide variety of scientific and engineering
fields. It emphasizes the adaptivity, asynchrony, and message-driven execution of Charm++ …

With the continuous rise in complexity of modern supercomputers, optimizing the
performance of large-scale parallel programs is becoming increasingly challenging …

Unstructured meshes are used in many engineering applications with irregular domains,
from elastic deformation problems to crack propagation to fluid flow. Because of their …

Among the many reasons for load imbalance in weather forecasting models, the dynamic
imbalance caused by localized variations on the state of the atmosphere is the hardest one …

Event traces are required to correctly diagnose a number of performance problems that arise
on today's highly parallel systems. Unfortunately, the collection of event traces can produce …

High-performance systems with thousands of processors have been introduced in the recent
past, and systems with hundreds of thousands of processors should become available in the …