• Ergalics
• What is Ergalics?
• Predictive Causal Models
• Derivation of the Term
• Algorithmic Ergalics
•   Concrete Complexity
•   (cf. Modeling Scientific Applications)
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•   AZDBLab
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• Ergalic Metrology
•   Repeatable Measurement
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•   Field Guide
• Green Ergalics
•   DREAM
•   (cf. Modeling Scientific Applications)
• Multimedia Ergalics
•   SLIC
• Network Ergalics
•   Evolution of Internet Topology
• Operating System Ergalics
•   Modeling Scientific Applications
•   (cf. DREAM)
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Software Experiment Provenance and Replay

Overview

This project is developing a comprehensive toolset (called Rex) that can (i) record and archive the apparatus of a software experiment: the programs run, the environment variables read, and the data files read, (ii) replay a recorded experiment, including multi-threaded programs, (iii) compare the differences between recorded software experiments, say to determine what (the input or the apparatus) caused the experiments to produce differing results, and (iv) run new experiments using the apparatus from recorded experiments, in each case with low performance impact and without recompiling any of the programs.

People

Faculty

Greg Andrews

John Hartman

Graduate Students

Somu Perianayagam

Funding

The iPlant Collaborative: A Cyberinfrastructure-Centered Community for a New Plant Biology National Science Foundation, Plant CI Center. January 2008 to December 2012 (Richard A. Jorgensen (PI), Gregory R. Andrews (PI), Vicki L. Chandler (PI), Sudha Ram (PI), Lincoln D. Stein (PI))