March 2020 ECSS Symposium

AMP Gateway: An portal for atomic, molecular and optical physics simulations.
Presenter(s): Sudhakar Pamidighantam (Indiana University)
Presentation Slides

We describe the creation of a new Atomic and Molecular Physics science gateway (AMPGateway). The gateway is designed to bring together a subset of the AMP community to work collectively to make their software suites available and easier to use by the partners as well as others. By necessity, a project such as this requires the developers to work on issues of portability, documentation, ease of input, as well as making sure the codes can run on a variety of architectures. The gateway was built using Apache Airavata gateway middleware framework. Initially it was deployed using the Airavata PHP client on the web but has since been redeployed under a Django web framework. Here we outline the organization and facility of the Django deployment and how it has been used discuss future directions for the AMP gateway.

Bursting into the public Cloud – Sharing my experience doing it at large scale for IceCube
Presenter(s): Igor Sfiligoi (SDSC)
Presentation Slides

When compute workflow needs spike well in excess of the capacity of a local compute resource, capacity should be temporarily provisioned from somewhere else to both meet deadlines and to increase scientific output. Public Clouds have become an attractive option due to their ability to be provisioned with minimal advance notice. I have recently helped IceCube expand their resource pool by a few orders of magnitude, first to 380 PFLOP32s for a few hours and later to 170 PFLOP32s for a whole workday. In the process we moved O(50 TB) of data to and from the clouds, showing that networking is not a limiting factor, either. While there was a non-negligible dollar cost involved with each, the effort involved was quite modest. In this session I will explain what was done and how, alongside an overview of why IceCube needs so much compute.

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