Abstract

This paper describes the Pegasus framework that can be used to map complex scientific workflows onto distributed resources. Pegasus enables users to represent the workflows at an abstract level without needing to worry about the particulars of the target execution systems. The paper describes general issues in mapping applications and the functionality of Pegasus. We present the results of improving application performance through workflow restructuring which clusters multiple tasks in a workflow into single entities. A real‐life astronomy application is used as the basis for the study.

Date

June 16, 2025

Authors

Ewa Deelman, Gurmeet Singh, Mei-Hui Su, James Blythe, Yolanda Gil, Carl Kesselman, Gaurang Mehta, Karan Vahi, G Bruce Berriman, John Good, Anastasia Laity, Joseph C Jacob, Daniel S Katz

Journal

Scientific programming

Volume

13

Issue

3

Pages

219-237

Publisher

IOS Press