Yong Zhao yongzh at cs dot uchicago dot edu Department of Computer Science University of Chicago 1100 E. 58th St. Chicago, IL 60637

I’m a Ph. D. student in the Department of Computer Science at the University of Chicago. I’m now working in the Distributed Systems Laboratory led by Professor Ian Foster.

Education

Research Interests

I am interested in the following areas:

• Distributed Computing.
  Grid services and tools: The Globus Project
  Virtual Data Grid: GriPhyN
  
• High Performance Computing
• Large Scale Data Management
• Scientific Workflow Management
  
• Business Process Management
  
• Ontology and Semantic Web
  
• Peer to Peer Systems

Projects

Virtual Data System

I’m one of the key developers for the GriPhyN Virtual Data System, a data and workflow management system for data-intensive science collaborations. The system has been applied to a number of scientific experiments such as the high energy physics experiment CMS, ATLAS, astrophysics project Sloan Digital Sky Survey, Neuroscience and bioinformatics projects.

Swift

Swift is a programming tool for fast, reliable, and loosely-coupled parallel computation.
Swift comprises a simple scripting language called SwiftScript to represent complex scientific workflows, and a scalable runtime system to schedule hundreds of thousands of jobs onto distributed and parallel computing resources.

The Falkon LightWeight Execution Service

Falkon integrates (1) multi-level scheduling to separate resource acquisition from task dispatch, and (2) a streamlined dispatcher. Falkons integration of multi-level scheduling and streamlined dispatchers delivers performance not provided by any other system. Microbenchmarks show that Falkon throughput (ranging from 100s to 1000s of tasks/sec) and scalability (to 54K executors and 2M queued tasks) are several orders of magnitude better than other systems used in production Grids.

Publications

Here is a list of my publications.

Links