Program developers spend significant time on optimizing and tuning programs. During this
iterative process, they apply optimizations, analyze the resulting code, and modify the …

Function calls in execution contain rich bivariate, hierarchical, and chronological
information. Many visualizations have been adopted to analyze function calls in execution …

Optimizing the performance of large-scale parallel codes is critical for efficient utilization of
computing resources. Code developers often explore various execution parameters, such as …

Common pitfalls in visualization projects include lack of data availability and the domain
users' needs and focus changing too rapidly for the design process to complete. While it is …

Interactive visualization via direct manipulation has inherent design trade-offs in flexibility,
discoverability, and ease-of-use. Scripting languages can support a vast range of user …

Understanding the performance characteristics of applications in modern HPC environments
is becoming more challenging due to the increase in the architectural and programming …

Interactive visualization can support fluid exploration but is often limited to predetermined
tasks. Scripting can support a vast range of queries but may be more cumbersome for free …

A variety of hardware architectures, both CPUs and GPUs, are used today to build
supercomputers and parallel clusters. Often times, users can choose which hardware …

High-performance computing systems have become increasingly dynamic, complex, and
unpredictable. To help build software that uses full-system capabilities, performance …

Abstract Control Flow Graphs (CFGs) are directed graphs that represent all possible paths a
computer program can take during its execution. They are used to analyze computer …