The scientific computational work as portable workflows. Automatically locates the necessary input data and computational resources, and manages storage space for executing data-intensive workflows on storage-constrained resources. Learn more.


From failures at runtime (fault-tolerance). Task are automatically retried in the presence of errors. A rescue workflow containing a description of only the work that remains is provided. Provenance is also captured (data, software, parameters, etc.). Learn more.


Failures in computations using a set of system provided debugging tools and an online workflow monitoring dashboard. Learn more.

Highlights from the Blog

Pegasus @ SC16
with No Comments

Are you going to attend the SC16 conference in Salt Lake City, Utah on November 13-18, 2016? We will be giving a presentation about our recent funded NSF SWIP project on Tuesday Nov 15th at 3:45pm at the Indiana University booth. We will also be giving a demonstration of the … Read More

Pegasus 4.7.0 Released
with No Comments

We are happy to announce the release of Pegasus 4.7.0.  Pegasus 4.7.0 is a major release of Pegasus and includes all the bug fixes and improvements in the 4.6.2 release. New features and Improvements in 4.7.0 include: Automatic submit directory organization Improved directory management on staging site in nonsharedfs mode … Read More

$1M NSF award for Data Integrity Project
with No Comments

The three-year project, Scientific Workflow Integrity with Pegasus, is funded by a $1 million grant from the National Science Foundation (NSF) as part of its Cybersecurity Innovation for Cyberinfrastructure (CICI) program. Von Welch, director of IU’s Center for Applied Cybersecurity Research (CACR), is the project’s principal investigator. The Pegasus Workflow … Read More

Soybean Science Blooms with Supercomputers
with No Comments

TACC (Texas Advanced Computing Center) has published a science highlight of the SoyKB project. Pegasus is used to orchestrate the computations running on TACC Wrangler and automatically retrieving and storing data in the CyVerse data store. Also highlighted is how the XSEDE ECSS (Extended Collaborative Support Service) can be used … Read More

Pegasus Research Impact
with No Comments

Pegasus (est. 2001) has been widely adopted by the computational research community, and its performance and usage data have already demonstrated its ability to empower the scientists to seamlessly run their simulation or data analyses in distributed systems. In this project, we aim to provide empirical data to demonstrate on … Read More

Pegasus and LIGO
with No Comments

Early this month, the Pegasus team was very excited to hear about LIGO’s incredible discovery: the first detection of gravitational waves from colliding black holes. Since then, LIGO and Pegasus have been featured in several media channels. Below, we summarize some of these publications. Additionally, we provide the link to … Read More

SCEC Cybershake: Using Pegasus to run across OLCF Titan, Bluewaters and HPCC
with No Comments

While recently gathering data for the Pegasus Annual Report, we reached out to our collaborators at SCEC to summarize how Pegasus WMS impacted their science in 2015. Some interesting facts about SCEC Cybershake Study 15.4 performed by SCEC in 2015 using Pegasus Calculations were distributed between the NSF Track 1 system NCSA Blue … Read More

Pegasus powers LIGO gravitational wave detection analysis
with No Comments

The Pegasus team is very happy to hear about LIGO’s incredible discovery: the first detection of gravitational waves from colliding black holes. We congratulate the entire LIGO Scientific Collaboration and the Virgo Collaboration on this incredible achievement.     The Pegasus team is very pleased to have contributed to LIGO’s … Read More