In This Message

Center Announcements
  – Annual GPU Hackathon Series
  – Building Containers on Summit

Meetings & Workshops
  – Call for Papers: SMC2022 (Abstracts Due April 4)
  – March OLCF User Conference Call is Today (Mar 30)
  – Coding for GPUs Using Standard C++ (Apr 7)
  – HPC Best Practices Webinar (Apr 13)

Upcoming Scheduled Outages
  – HPSS (Apr 5)

Center Announcements

Annual GPU Hackathon Series
Do you have an application that needs to be ported to (or optimized on) GPUs? If so, why not work toward your GPU development goals surrounded by experts in the field? Each year, the OLCF works with NVIDIA and other GPU hackathon partners to deliver a series of hackathons around the world. During the events, teams (3 or more members) work alongside mentors with GPU programming expertise to port or optimize their codes on GPUs.

For more information about these events, please visit or, if you are already familiar with the events, you can visit and click “Hackathons” to see the list of upcoming events. Look for the OLCF logo for the OLCF-sponsored hackathons.

Building Containers on Summit
Building container images is now possible on Summit! Users can build a container image with Podman, convert it to a Singularity Image File (SIF) format, and run the container using the Singularity runtime. The full workflow is detailed at

Meetings & Workshops

Call for Papers: SMC2022 (Abstracts Due April 4)
The abstract submission period for the Smoky Mountains Computational Sciences & Engineering Conference (SMC2022) is officially open! SMC2022 will take place August 23–25, 2022 in Kingsport, TN. The theme of SMC2022, accelerating science and engineering discoveries through integrated research infrastructure for experiment, big data, modeling and simulation, focuses on four major areas—theory, experiment, modeling and simulation, and data—that emphasize accelerated node computing and integrated instruments for science. This year, the program committee will accept vision papers that include the author’s perspective on the most important directions for research, development, production, experiences, and investment needs.

To learn more about the Call for Papers or to submit an abstract visit: Abstracts are due April 4, 2022, COB anywhere on earth. Abstract submissions should be no more than 250 words.

March OLCF User Conference Call is Today (Mar 30)
The March OLCF User Conference Call will be held from noon until 1:00 PM Eastern Time today (Wednesday, March 30). During this call, HPE’s Sam Partee will present Machine Learning for HPC simulations: Using PyTorch, TensorFlow in Fortran, C, and C++ with SmartSim. As with all our user conference calls no registration is required. For more information, see the event page.

Coding for GPUs Using Standard C++ (Apr 7)
Parallelism features available in ISO C++ and ISO Fortran enable developers to write their codes such that the baseline code is parallel and ready to run on any parallel platform they encounter. Join us from 2 PM – 3 PM (EDT) on Thursday, April 7 for the first part of a series that covers how ISO C++ and ISO Fortran can be used as a portable solution to parallel programming targeting both GPUs and CPUs. This training, given by NVIDIA, will be delivered by Zoom and is targeted for OLCF and NERSC users. For this session we’ll demonstrate the current state-of-the-art in writing application code that is parallel and ready to run on GPUs, CPUs, and more, using only C++. For more information or to register, visit

HPC Best Practices Webinar (Apr 13)
The IDEAS Productivity project, in partnership with the DOE Computing Facilities of the ALCF, OLCF, and NERSC and the DOE Exascale Computing Project (ECP) run a webinar series on Best Practices for HPC Software Developers. The April webinar will be presented by JaeHyuk Kwack of Argonne National Laboratory and is titled Evaluating Performance Portability of HPC Applications and Benchmarks Across Diverse HPC Architectures. The webinar will take place on Wednesday, April 13, 2022 at 1:00 pm ET. The webinar is free and open to the public, but registration is required and is available at For more information, see

Upcoming Scheduled Outages

  • HPSS will be unavailable from 8:00 AM until 4:00 PM on Tuesday, April 5.