We present MRNet, a software-based multicast/reduction network for building scalable
performance and system administration tools. MRNet supports multiple simultaneous, …

We present the Stack Trace Analysis Tool (STAT) to aid in debugging extreme-scale applications.
STAT can reduce problem exploration spaces from thousands of processes to a few by …

Petascale systems will present several new challenges to performance and correctness
tools. Such machines may contain millions of cores, requiring that tools use scalable data …

The NetSolve Grid Computing System was first developed in the mid 1990s to provide users
with seamless access to remote computational hardware and software resources. Since …

As we research to make the use of Computational Grids seamless, the allocation of resources
in these dynamic environments is proving to be very unwieldy. In this paper, we introduce, …

Performance monitoring of HPC applications offers opportunities for adaptive optimization
based on the dynamic performance behavior, unavailable in purely post‐mortem performance …

Exascale networks are expected to comprise a significant part of the total monetary cost and
10-20% of the power budget allocated to exascale systems. Yet, our understanding of …

Many high-performance tools, applications and infrastructures, such as Paradyn, STAT, TAU,
Ganglia, SuperMon, Astrolabe, Borealis, and MRNet, use data aggregation to synthesize …

Ultimately, our Creator is responsible for all. I was fortunate to have an excellent and strong
support system throughout this process. With great pleasure and extreme gratitude, I thank …

Many tools that target parallel and distributed environments must co-locate a set of daemons
with the distributed processes of the target application. However, efficient and portable …