Pegasus Workflows on OLCF Summit

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Summit is a leadership-class computing system for open science that is hosted at the Oak Ridge National Laboratory. Summit, launched in 2018, delivers 8 times the computational performance of Titan’s 18,688 nodes, using only 4,608 nodes. Its architecture with the associated GPU resources, makes it an attractive resource for scientists … Read More

Pegasus and Dynamo Aiding Weather Scientists

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Computational science today depends on many complex, compute and data-intensive applications operating on distributed datasets that originate from a variety of scientific instruments and data repositories. Two major challenges for these applications are (1) the provisioning of compute resources and (2) the integration of data into the scientists’ workflow. Background … Read More

Pegasus 4.9.2 Released

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We are happy to announce the release of Pegasus 4.9.2. Pegasus 4.9.2 is a minor bug fix release after Pegasus 4.9.1. This release has support for retrieval of datasets from HPSS, and improved events that can be sent to AMQP endpoints for users to build custom dashboards. Additionally, all PegasusLite … Read More

Pegasus 4.9.1 Released

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We are happy to announce the release of Pegasus 4.9.1 . Pegasus 4.9.1 is a minor bug fix release and includes a major change to how transfers are handled for containerized jobs. Pegasus 4.9.1 also includes support for Shifter. Until Pegasus 4.9.0 the transfers for the jobs were conducted on the host … Read More

Pegasus 4.8.5 Released

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We are happy to announce the release of Pegasus 4.8.5 . Pegasus 4.8.5 is a minor bug fix release and the last release in the 4.8 series. Improvements [PM-1248] – Planning fails in shared-fs mode with cryptic message. Bugs Fixed [PM-1314] – incorrect way of computing suffix for singularity images … Read More

Pegasus 4.8.4 Released

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We are happy to announce the release of Pegasus 4.8.4 . Pegasus 4.8.4 is a minor bug fix release. Improvements [PM-1294] – update flask dependency [PM-1277] – pegasus workflows on OSG should appear in OSG gratia [PM-1288] – pegasus.project profile key is not set for SLURM submissions Bugs Fixed [PM-1282] … Read More

NSF OAC Webinar Series: Science Impact of Sustained Cyberinfrastructure: The Pegasus Example

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Dr. Deelman was invited to kick off the National Science Foundation (NSF) Office of Advanced Cyberinfrastructure (OAC) 2018 monthly webinar series.   OAC – CI Webinar Series Theme and Purpose: The 2018 webinar series will focus on the translational impact of Advanced Cyberinfrastructure and will highlight how cyberinfrastructure innovations have … Read More

Pegasus 4.8.3 Released

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We are happy to announce the release of Pegasus 4.8.3 . Pegasus 4.8.3 s a minor bug fix release New Features [PM-1280] – incorporate container based example in pegasus-init pegasus-init was updated to include a population modeling example using containers. Updated tutorial instructions using that example can be found at http://pegasus.isi.edu/tutorial/isi/index.php … Read More

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