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. graduate from the Department of Computer Science at the University of Chicago. I worked in the Distributed Systems Laboratory led by Professor Ian Foster.

Education

Ph.D.

University of Chicago

2002-2007

M. S.

University of Chicago

2000-2002

M. E.

Tsinghua University

1995-1997

B. S.

Beijing Normal University

1987-1991

Research Interests

I am interested in the following areas:

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

Workshop on Many-Task Computing on Grids and Supercomputers (MTAG09)
IEEE International Workshop on Scientific Workflows (SWF)
International Provenance and Annotation Workshop
My Ontology Resource Page
Data Provenance/Derivation Workshop