In This Message

Meetings & Workshops
– Tips from OLCF’s Crusher Hackathons (December 1)
– Crusher User-Experience Talks (December 9)
– Using HIP and GPU Libraries with OpenMP (December 14)

Center Announcements
– Last Chance to Complete OLCF User Survey (Close on November 25)
– OLCF @ SC22
– ALCC Call for Proposals (Pre-proposals due November 28)
– darshan-runtime/3.4.0-lite is available for testing
– User Assistance Center Schedule

Upcoming Downtimes
– No scheduled outages through November 25th

Meetings & Workshops

Lessons & Tips from OLCF’s Crusher Hackathons
December 1, 2022, 2:00 – 3:00 PM (EST)
Virtual via Zoom

Contact: Tom Papatheodore (papatheodore@ornl.gov).

Crusher is the OLCF’s 192-node test-and-development system with identical node architecture as Frontier. It serves as the main development platform for the Frontier Center for Accelerated Application Readiness (CAAR) and Exascale Computing Project (ECP) teams as they prepare their applications and software for Frontier. As part of the training program for these early-access users, the OLCF, HPE, AMD, and ECP held Crusher hackathons to help these teams with porting, profiling, optimizing, and debugging along the way. In this session, we will cover some of the lessons learned and tips from our experiences at these hackathons.

Registration:
https://www.olcf.ornl.gov/calendar/lessons-and-tips-from-olcfs-crusher-hackathons/
All participants must register to attend this event.

Crusher User-Experience Talks
December 9, 2022, 2:00 – 3:30 PM (EST)
Virtual via Zoom

Contact: Tom Papatheodore (papatheodore@ornl.gov).

Crusher is the OLCF’s 192-node test-and-development system with identical node architecture as Frontier. It serves as the main development platform for the Frontier Center for Accelerated Application Readiness (CAAR) and Exascale Computing Project (ECP) teams as they prepare their applications and software for Frontier. In this session, we will hear from 3 of these teams, who will share their experiences porting their applications from Summit to Crusher, optimizing for the platform, and giving some helpful tips to future users of the Frontier system. Please register below to hear from the following application teams:

  • Cholla – GPU-based hydrodynamics code
  • NuCCOR – Nuclear physics application for deciphering the structure and reactions of atomic nuclei
  • Lattice QCD – Nuclear physics application used to calculate interactions of sub-nuclear elementary particles – quarks & gluons.

Registration:
https://www.olcf.ornl.gov/calendar/crusher-user-experience-talks/
All participants must register to attend this event.

Using HIP and GPU Libraries with OpenMP
December 14, 2022, 1:00 – 2:30 PM (ET)

December 14, 2022, 1:00 – 2:30 PM (ET), Virtual via Zoom

This training is designed for Fortran and C/C++ users who are using OpenMP or considering OpenMP for their applications on Frontier. The focus will be showing how one can augment an OpenMP program with GPU kernels and libraries written in HIP. We build on the previous OpenMP training in OLCF’s “Preparing for Frontier” series OpenMP Offload Basics and OpenMp Optimization and Data Movement. For Fortran OpenMP programmers, we will demonstrate how to build or use the C-interoperability interfaces to launch HIP kernels and call ROCm libraries (for example, rocBLAS, rocFFT, etc.), while using OpenMP to manage data allocation and movement. Users of OLCF, ALCF and NERSC are welcome to attend this training.

Registration is required at: https://www.olcf.ornl.gov/calendar/preparing-for-frontier-openmp-part3/

Center Announcements

Last Chance to Complete OLCF User Survey

The annual OLCF User Survey is now available for your participation at the following URL:  https://orausurvey.orau.org/n/2022OLCFUserSurvey.aspx
The survey is conducted on behalf of the OLCF by Oak Ridge Associated Universities (ORAU) and should take approximately 10 minutes to complete.
Just as project reports are a requirement of all OLCF projects, participation in the annual User Survey is an important obligation and a requirement of your OLCF access.  At the OLCF, we are focused on making ongoing improvements to user satisfaction.  The OLCF relies strongly on the input received from our user community and encourages you to continue providing feedback through the annual survey and directly to our staff.  Users can also provide comments and feedback to the OLCF User Group Executive Board.  In addition, survey response is one of the key areas in which the OLCF is evaluated, and thus your participation is very important to ensure the OLCF continues to be able to provide you with leadership computing resources.
The deadline to finish the survey is extended to November 25, 2022. If you have questions, please contact the OLCF User Assistance Center at help@olcf.ornl.gov.

OLCF @ SC22
The 34th International Conference for High-Performance Computing, Networking, Storage, and Analysis, or SC22, is taking place through Nov 13-18. For a list of OLCF and ORNL-related contributions to SC22, visit https://www.olcf.ornl.gov/sc22/.

ALCC Call for Proposals

NOTE: Pre-proposals are due on November 28, 2022
The DOE Office of Advanced Scientific Computing Research (ASCR) is now accepting application proposals for the 2023-24 allocation year of the ASCR Leadership Computing Challenge (ALCC) program. The program provides access to computational resources at ASCR’s three supercomputing facilities (OLCF, ALCF, and NERSC) and will include allocations on OLCF’s Frontier system.
The proposal process consists of two steps, with a pre-proposal due on November 28, 2022, and the full proposal due on February 17, 2023. The allocation period for successful proposals will run from July 1, 2023-June 30, 2024.
For more information, see the announcement at https://science.osti.gov/ascr/Facilities/Accessing-ASCR-Facilities/ALCC.

darshan-runtime/3.4.0-lite
darshan-runtime/3.4.0-lite is available for testing and will become default on Nov 28 if no issues are reported.

User Assistance Center Schedule
The OLCF User Assistance Center will be closed on Thursday, November 24, and Friday, November 25 due to ORNL-observed holidays. The normal user assistance schedule will resume on Monday, November 28. NOTE: The ORNL Computer Operations staff will remain available for limited troubleshooting 24 hours a day.

Upcoming Downtimes

– No scheduled outages through November 25th.