ExHET 2025
The 4th International Workshop on Extreme Heterogeneity Solutions
to be held in conjunction with
PPoPP 2025


02 March, 2025
Las Vegas, NV, USA

Introduction
While computing technologies have remained relatively stable for nearly two decades, new architectural features, such as specialized hardware, heterogeneous cores, deep memory hierarchies, and near-memory processing, have emerged as possible solutions to address the concerns of energy efficiency, manufacturability, and cost. However, we expect this ‘golden age’ of architectural change to lead to extreme heterogeneity and will have a major impact on software systems and applications. In this upcoming exascale and extreme heterogeneity era, it will be critical to explore new software approaches that will enable us to effectively exploit this diverse hardware to advance science, the next-generation systems with heterogeneous elements will need to accommodate complex workflows. This is mainly due to the many forms of heterogeneous accelerators (no longer just GPU accelerators) in this heterogeneous era, and the need to map different parts of an application onto elements most appropriate for that application component. In addition, this year we are acknowledging a now clear trend by explicitly encouraging contributions involving the use of trained AI methods -- for example, the use of GPT for code generation.

Objectives, scope and topics of the workshop
This workshop aims to provide a forum to discuss new and emerging solutions to address these important challenges from the upcoming extreme heterogeneity era. Papers are being sought on many aspects of heterogeneous computing including (but not limited to):

Heterogeneous Programming Environments and Runtime Systems
Programming models and systems
Parallel resource management on heterogeneous systems
Automated parallelization and compiler techniques (Autotuning)
Programming solutions using AI code generation
Heterogeneous Solutions for HPC and Scientific Applications
Parallel and distributed algorithms
Parallel libraries and frameworks
Parallel processing on heterogeneous systems
Heterogeneous (included Non-von Neuman) Architectures
Power/energy management
Heterogeneous architectures for emerging application domains
Architecture designs including Non-von Neuman architectures, memory and interconnection
Reliability/Benchmarking/Measurements
Debugging, performance tools and techniques
Fault tolerance and resilience
Application/hardware benchmarks
Program
TBA

Important Dates
Paper submission deadline : December 20th
Notification of acceptance : January 13th
Camera-ready papers due : TBA
Workshop day: March 02, 2024

Steering Committee
Antonio J. Pena, Barcelona Supercomputing Center, Spain

Hartwig Anzt, Technical University of Munich, Germany

Hyesoon Kim, Georgia Institute of Technology, USA

Ignacio Laguna, Lawrence Livermore National Laboratory, USA

Jeffrey S. Vetter, Oak Ridge National Laboratory, USA

Manuel Prieto, University Complutense of Madrid, Spain

Miwako Tsuji, RIKEN, Japan

Olivier Aumage, INRIA, France

Sunita Chandrasekaran, University of Delaware, USA

Toshiyuki Imamura, RIKEN, Japan

Organizers (Contact us)
Pedro Valero-Lara (co-chair)
Oak Ridge National Laboratory, USA
valerolarap@ornl.gov

Seyong Lee (co-chair)
Oak Ridge National Laboratory, USA
lees2@ornl.gov

Gokcen Kestor (co-chair)
Pacific Northwest National Laboratory, University of California Merced, USA
gokcen.kestor@pnnl.gov

Monil Mohammad Alaul Haque (proceeding chair and program chair)
Oak Ridge National Laboratory, USA
monilm@ornl.gov

Simon Garcia de Gonzalo (publicity and web chair)
Sandia National Laboratory, USA
simgarc@sandia.gov

Programme Committee
Ali Akoglu, Arizona State University, USA
Rabab Alomairy, Massachusetts Institute of Technology, USA
Johannes Doerfert, Lawrence Livermore National Laboratory, USA
Het Mankad, Carnegie Mellon University, USA
Marc Gonzalez-Tallada, Universitat Politècnica de Catalunya, Spain
Nikela Papadopoulou, University of Glasgow, UK
Swaroop Pophale, Oak Ridge National Laboratory, USA
William F. Godoy, Oak Ridge National Laboratory, USA
Hiroyuki Takizawa, Tohoku University, Japan
Manuscript submission
We invite submissions of original, unpublished research and experiential papers. Full papers should be between 6 to 8 pages in length, formatted according to the standard ACM two-column conference template. Additionally, we are introducing a short paper track for submissions up to 3 pages. ACM templates for both Microsoft Word and LaTeX can be accessed here. All paper submissions will be managed electronically via TBA.

Proceedings
All accepted papers will be published in the ExHET-PPoPP Workshops 2024 proceedings by the ACM Digital Library.

Best Paper Award
The Best Paper Award will be selected on the basis of explicit recommendations of the reviewers and their scoring towards the paper’s originality and quality.

Special Issue Journal
Selected best papers of ExHET will be considered for publication in a special issue of the international journal Applied Sciences (Heterogeneous Computing Solutions) and FGCS (High-performance Computing Heterogeneous Systems and Subsystems)

Keynote (TBA):
Panel:
Challenges and Solutions for the upcoming Extreme Heterogeneity Era
During the panel discussion, the panelists and those participants in the workshop will have the opportunity to discuss the fundamentals of extreme heterogeneity: challenges and solutions.

Panelists:
TBA


Registration
Information about registration at PPoPP 2025 website.