PAW-ATM 2023: Call for Papers

Hi Chapel Community,

Please consider submitting a paper or talk to PAW-ATM 2023. PAW-ATM is a workshop at SC focusing on applications that use alternatives to MPI+X programming, like Chapel. There are many efforts related to programming with Chapel that would be warmly received at PAW-ATM - from application development to performance studies and even improvements to compiler optimization.

The PAW-ATM workshop will be held at SC23 in Denver, CO, November 12-17. Submissions are due on July 24.

For more information about PAW-ATM and the submission process, see the workshop website:

The 6th Annual Parallel Applications Workshop, Alternatives To MPI+X (PAW-ATM)

or the more detailed Call for Papers included below.

Call for Papers

PAW-ATM 2023:

Parallel Applications Workshop,
Alternatives To MPI+X

Held in conjunction with SC23, Denver, CO

Submissions deadline: July 24, 2023
Notification to authors: August 31, 2023
Workshop date: November 12-17, 2023


As supercomputers become more and more powerful, the number and diversity of
applications that can be tackled with these machines grows. Unfortunately, the
architectural complexity of these supercomputers grows as well, with heterogeneous
processors, multiple levels of memory hierarchy, and many ways to move data and
synchronize between processors. The MPI+X programming model, use of which is
considered by many to be standard practice, demands that a programmer be expert
in both the application domain and the low-level details of the architecture(s)
on which that application will be deployed, and the availability of such superhuman
programmers is a critical bottleneck. Things become more complicated when evolution
and change in the underlying architecture translates into significant re-engineering
of the MPI+X code to maintain performance.

Numerous alternatives to the MPI+X model exist, and by raising the level of
abstraction on the application domain and/or the target architecture, they offer
the ability for "mere mortal" programmers to take advantage of the supercomputing
resources that are available to advance science and tackle urgent real-world problems.
However, compared to the MPI+X approach, these alternatives generally lack two things.
First, they aren't as well known as MPI+X and a domain scientist may simply not be
aware of models that are a good fit to their domain. Second, they are less mature
than MPI+X and likely have more functionality or performance "potholes" that need
only be identified to be addressed.

PAW-ATM is a forum for discussing HPC applications written in alternatives to
MPI+X. Its goal is to bring together application experts and proponents of
high-level languages to present concrete example uses of such alternatives,
describing their benefits and challenges.


The PAW-ATM workshop is designed to be a forum for discussion of
supercomputing-scale parallel applications and their implementation in programming
models outside of the dominant MPI+X paradigm. Papers and talks will explore the
benefits (or perhaps drawbacks) of implementing specific applications with
alternatives to MPI+X, whether those benefits are in performance, scalability,
productivity, or some other metric important to that application domain.
Presenters are encouraged to generalize the experience with their application
to other domains in science and engineering and to bring up specific areas of
improvement for the model(s) used in the implementation.

In doing so, our hope is to create a setting in which application authors, language
designers, and architects can present and discuss the state of the art in alternative
scalable programming models, while also wrestling with how to increase their
effectiveness and adoption. Beyond well-established HPC scientific simulations, we also
encourage submissions exploring artificial intelligence, big data analytics,
machine learning, and other emerging application areas.

Topics of interest include, but are not limited to:

  • Novel application development using high-level parallel programming languages
    and frameworks.

  • Examples that demonstrate performance, compiler optimization, error checking,
    and reduced software complexity.

  • Applications from artificial intelligence, data analytics, bioinformatics, and
    other novel areas.

  • Performance evaluation of applications developed using alternatives to MPI+X
    and comparisons to standard programming models.

  • Novel algorithms enabled by high-level parallel abstractions.

  • Experience with the use of new compilers and runtime environments.

  • Libraries using or supporting alternatives to MPI+X.

  • Benefits of hardware abstraction and data locality on algorithm

Papers that include description of applications that demonstrate the use of
alternative programming models will be given higher priority.


Submissions are solicited in 2 categories:

  1. Full-length papers presenting novel research results:
  • Full-length papers will be published in the workshop proceedings.
    Submitted papers must describe original work that has not appeared in, nor is
    under consideration for, another conference or journal. Papers shall be eight
    (8) pages minimum and not exceed ten (10) pages including text, appendices, and
    figures, but excluding bibliography and acknowledgments.
  1. Extended abstracts summarizing preliminary/published results:
  • Extended abstracts will be evaluated separately and will not be included in
    the published proceedings; they are intended to propose timely communications
    of novel work that will be formally submitted elsewhere at a later stage,
    and/or of already published work that would be of interest to the PAW-ATM
    audience in terms of topic and timeliness. Extended abstracts shall not
    exceed four (4) pages.

When deciding between manuscript submissions with similar merit, submissions
whose focus relates more directly to the key themes of the workshop (application
studies, computing at scale, high-level alternatives to MPI+X) will be given
priority over those that don't.

Submissions shall be submitted through Linklings:

Submissions must use 10pt font in the IEEE format:
IEEE - Manuscript Templates for Conference Proceedings

PAW-ATM follows the reproducibility initiative of SC23. Submissions shall include an
Artifact Description (AD) appendix. The appendix pages related to the reproducibility
initiative dependencies are not included in the page count. For more information,
please refer to:
Reproducibility Initiative • SC23
The 6th Annual Parallel Applications Workshop, Alternatives To MPI+X (PAW-ATM) by sourceryinstitute


  • Karla Morris - Sandia National Laboratories


  • Engin Kayraklioglu - Hewlett Packard Enterprise
  • Irene Moulitsas - Cranfield University
  • Elliott Slaughter - SLAC National Accelerator Laboratory


  • Bill Long - Hewlett Packard Enterprise
  • Daniele Lezzi - Barcelona Supercomputing Center


  • Dan Bonachea - Lawrence Berkeley National Laboratory
  • Jan Cieskio - Sandia National Laboratories
  • Iacopo Colonnelli - University of Turin
  • Mario Di Renzo - University of Salento and Stanford University
  • Salvatore Filippone - Universita di Roma Tor Vergata
  • Magne Haveraaen - University of Bergen
  • Peter Hawkins - Google
  • Engin Kayraklioglu - Hewlett Packard Enterprise
  • Jannis Klikenberg - RWTH Aachen University
  • Daniele Lezzi - Barcelona Supercomputing Center
  • Bill Long - Hewlett Packard Enterprise
  • Francesc Lordan - Barcelona Supercomputing Center
  • Lee Margetts - University of Manchester
  • Fabrizio Marozzo - University of Calabria
  • Josh Milthorpe - Australian National University
  • Henry Monge Camacho - Oak Ridge National Laboratory
  • Karla Morris - Sandia National Laboratories
  • Irene Moulitsas - Cranfield University
  • Elliott Slaughter - SLAC National Accelerator Laboratory
  • Kenjiro Taura - University of Tokyo
  • Miwako Tsuji - RIKEN Advanced Institute for Computational Science


  • Bradford L. Chamberlain - Hewlett Packard Enterprise
  • Damian W. I. Rouson - Lawrence Berkeley National Laboratory
  • Katherine A. Yelick - Lawrence Berkeley National Laboratory


  • Irene Moulitsas - Cranfield University


  • Scott Baden - University of California San Diego
  • Desmond Bisandu - Cranfield University
  • Valentin Churavy - Massachusetts Institute of Technology
  • Fabio Durastante - University of Pisa
  • Yakup Koray Budanaz - Technical University of Munich
  • Boyu Kuang - Cranfield University
  • Soren Rasmussen - National Center for Atmospheric Research
  • Anjiang Wei - Stanford University


  • Submissions deadline: July 24, 2023
  • Manuscripts review period (including rebuttal): August 2-23, 2023
  • Rebuttal submission: August 23, 2023
  • Building consensus: August 24 - August 29, 2023
  • Notification to authors: August 31, 2023
  • Updated AD/AE appendix due from authors: September 4, 2023
  • AD/AE review period: September 5-24, 2023
  • Final program: September 25, 2023
  • Virtual participants upload video presentations: September 30, 2023
  • Final AD/AE decisions: October 1, 2023
  • Camera-ready papers due from authors: October 2, 2023
  • PAW-ATM workshop date: November 12-17, 2023