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Related Experiment Video

Updated: Aug 27, 2025

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing MTT

Mapping Molecular Diffusion in the Plasma Membrane by Multiple-Target Tracing MTT

Published on: May 27, 2012

Traveler: Navigating Task Parallel Traces for Performance Analysis.

Sayef Azad Sakin, Alex Bigelow, R Tohid

IEEE Transactions on Visualization and Computer Graphics

|September 27, 2022

Summary

This summary is machine-generated.

This study introduces Traveler, a visualization platform for high performance computing (HPC) execution traces. Traveler aids developers in analyzing complex task parallel program behavior, improving performance analysis and issue discovery.

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Last Updated: Aug 27, 2025

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Area of Science:

Computer Science
Software Engineering
High Performance Computing

Background:

Software execution behavior analysis is crucial for performance optimization, especially in HPC.
Execution traces are valuable for identifying performance issues but are often large and complex.
Asynchronous task parallel programming increases the complexity of trace analysis.

Purpose of the Study:

To address challenges in visualizing and analyzing large, complex HPC execution traces.
To develop an integrated visualization platform for task parallel traces.
To support exploratory performance analysis for HPC researchers.

Main Methods:

Conducted a continuing design study in collaboration with HPC researchers.
Developed diverse and hierarchical methods for navigating and representing execution trace data.
Iteratively designed and developed the Traveler visualization platform.

Main Results:

Traveler provides multiple linked interfaces for navigating trace data from multiple contexts.
User feedback and a case study evaluated Traveler's utility.
The platform supported performance analysis tasks and led to the discovery of unknown behavior.

Conclusions:

Integrating multiple navigation modes in Traveler enhances performance analysis.
The platform facilitates the discovery of previously unknown behaviors in HPC applications.
Traveler is a valuable tool for interactive trace visualization and performance debugging.