ECP @ ISC High Performance 2023

Hamburg, Germany | May 21–25

When the ISC High Performance 2023 event convenes in Hamburg, Germany, May 21–25, to discuss topics revolving around high-performance computing, machine learning, data analytics, and quantum computing, researchers associated with the US Department of Energy’s Exascale Computing Project (ECP) will be there to participate in the knowledge-sharing, as has been the case in years past.

Suren Byna (Ohio State University and Lawrence Berkeley National Laboratory) of ECP’s ExaIO, HDF5, Pre-exascale System Application Integration projects is tutorials chair.

EventSummary (for complete summaries, please visit the ISC High Performance 23 Schedule page:
Sunday, May 21, 9:00 a.m.–1:00 p.m. (Europe/Berlin) 

Tutorial: Advanced MPI Programming
Location: Hall Y12—2nd Floor

This is an advanced-level tutorial that will provide an overview of various powerful features in MPI, especially with MPI-2 and MPI-3, and will present a brief introduction on MPI-4 new features.Co-presenter: Yanfei Guo (Argonne National Laboratory), co-presenter, ECP MPICH: Exascale MPI project
Sunday, May 21, 2:00 p.m.–6:00 p.m. (Europe/Berlin)
Tutorial: Developing Custom HPC Data Services using Mochi
Location: Hall Y9—2nd Floor
This tutorial will equip attendees with tools and methodologies to rapidly compose specialized yet robust, high-performance, portable, and sustainable HPC data services using the state-of-the-art Mochi framework and its collection of foundational threading, data transfer, and storage building blocks.Co-presenters: Philip Carns (Argonne National Laboratory), Matthieu Dorier (Argonne National Laboratory), ECP DataLib project
Tutorial: Better Scientific Software
Location: Hall Y11—2nd Floor
This tutorial will provide information and hands-on experience with software practices, processes, and tools explicitly tailored for CSE.Co-presenters: David Rogers (Oak Ridge National Laboratory), Anshu Dubey (Argonne National Laboratory), David Bernholdt (Oak Ridge National Laboratory), Gregory Watson (Oak Ridge National Laboratory); IDEAS Productivity
Monday, May 22, 2:50 p.m.–3:30 p.m. (Europe/Berlin)
Research Paper Award Session: "Expression Isolation of Compiler-Induced Numerical Inconsistencies in Heterogeneous Code"
Location: Hall 4—Ground Floor
This paper presents Ciel, designed to identify the root cause of compiler-induced numerical inconsistencies in heterogeneous programs.Contributor: Ignacio Laguna (Lawrence Livermore National Laboratory), ECP LLNL ATDM, OMPI-X project
Monday, May 22, 5:20 p.m.–6:35 p.m. (Europe/Berlin)
Panel: The future of open-source filesystems for HPC—competition, cooperation, or consolidation?
Location: Hall Z—3rd Floor
This panel will address aspects of parallel filesystems which are key components of today’s HPC infrastructures but seem to be a bit underrepresented in discussions about the architecture of current and future high-end systems. Contributor: Philip Carns (Argonne National Laboratory), ECP DataLib project
Tuesday, May 23, 4:15 p.m.–5:15 p.m. (Europe/Berlin)
Birds-of-a-Feather: A European I/O Trace Repository to Build Better I/O Systems & HPC Applications 
Location: Hall G1—2nd Floor
This BoF aims to raise awareness on the European I/O trace repository. This initiative has been kicked-off at SC22 as a collaboration between several EuroHPC projects. Co-organizer: Philip Carns (Argonne National Laboratory), ECP DataLib project
Birds-of-a-Feather: Scientific Software and the People Who Make It Happen: Building Communities of Practice
Location: Hall E—2nd Floor
This BoF provides an opportunity for people concerned about topics revolving around how scientific software has become ever larger and more complex to share existing experiences and activities, discuss how we can expand and improve on them, and share the results.Co-organizers: Anshu Dubey (Argonne National Laboratory), David Bernholdt (Oak Ridge National Laboratory) (not attending)
Tuesday, May 23, 5:45–6:30 p.m. (Europe/Berlin)

Keynote by Valentina Salapura, principal engineer, Google: "A Hyperscaler’s Perspective on the Future of HPC from a Former Blue Gene Architect”

This talk will address how the emerging demand for compute power and performance is driving supercomputing technologies into commercial data centers and what this portends for the traditional high-performance computing sector.Chair: Damian Rouson (Lawrence Berkeley National Laboratory), ECP's Pagoda and Flang projects
Wednesday, May 24, 9:25 a.m.–9:50 a.m. (Europe/Berlin)

Research Paper Session: Performance: "Illuminating the I/O Optimization Path of Scientific Applications"
Location: Hall F—2nd Floor

In this paper, we propose a novel interactive, user-oriented visualization and analysis framework to pinpoint various root causes of I/O performance problems and provide a set of actionable recommendations to improve performance based on the observed characteristics of an application. Presenters: Jean Luca Bez (Lawrence Berkeley National Laboratory), ECP’s Pre-exascale System Application Integration project; Suren Byna (Ohio State University and Lawrence Berkeley National Laboratory), ECP’s ExaIO, HDF5, and Pre-exascale System Application Integration project
Wednesday, May 24, 11:35 a.m.–12:35 p.m. (Europe/Berlin)
Supercomputing with the Societies
Location: Hall E—2nd Floor
Come and learn from the leaders of the professional societies focused on HPC from ACM, IEEE, and SIAM! Speakers will discuss the structures, activities, and opportunities within each of the groups. Co-organizer: Lois Curfman McInnes (Argonne National Laboratory) (not attending)
Thursday, May 25, 9:00 a.m.–1:00 p.m. (Europe/Berlin)
7th Workshop on In Situ Visualization (WOIV’23)
Location: Hall Y3—2nd Floor
We encourage contributed talks on methods and workflows that have been used for large-scale parallel visualization, with a particular focus on the in situ case. Presentations on codes that closely couple numerical methods and visualization are particularly welcome. Speakers should detail if and how the application drove abstractions or other kinds of data reductions and how these interacted with the expressiveness and flexibility of the visualization for exploratory analysis. Presentations on codes that closely couple numerical methods and visualization are particularly welcome.Co-organizer: Kenneth Moreland (Oak Ridge National Laboratory), ECP’s VTK-m project

7th International Workshop on In Situ Visualization (WOIV'23)
Location: Hall Y3—2nd Floor

Keynote: David Pugmire (Oak Ridge National Laboratory), ECP’s VTK-m project

The Fourth Workshop on LLVM Compiler and Tools for HPC

Hall Y10—2nd Floor

This workshop, as its already established cousin LLVM-HPC @ Super Computing (SC), will bring together the different groups interested in LLVM: compiler and tooling developers, researchers, application specialists. 

Chair: Damian Rouson (Lawrence Berkeley National Laboratory), ECP's Pagoda and Flang projects

Speakers: Sameer Shende (University of Oregon; ParaTools, Inc.), ECP's E4S project; Johannes Doerfert (Lawrence Livermore National Laboratory), ECP's SOLLVE project

Thursday, May 25, 2:00 p.m.–6:00 p.m. (Europe/Berlin)
Workshop on Communication Architectures for HPC, Big Data, Deep Learning, and Clouds at Extreme Scale (ExaComm)The goal of this workshop is to bring together researchers and software/hardware designers from academia, industry, and national laboratories who are involved in creating network-based computing solutions for extreme-scale architectures. The objectives of this workshop will be to share the experiences of the members of this community and to learn the opportunities and challenges in the design trends for exascale communication architectures.Panel moderator: Ron Brightwell (Sandia National Laboratories), ECP's OMPI-X and SNL ATDM projects
Workshop: HPC on Heterogeneous Hardware (H3)
Location: Hall Y7—2nd floor
The 2nd edition of HPC on Heterogeneous Hardware (H3) Workshop is intended to complement a much broader scope of the program of the ISC High Performance 2023 conference in Hamburg, Germany. Speaker: Christopher Siefert (Sandia National Laboratories), ECP’s Sake project
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