ARRAY '15 ACM SIGPLAN 2nd International Workshop on Libraries, Languages and Compilers for Array Programming Saturday June 13th (whole day) Co-located with PLDI 2015, Portland, Oregon, USA Link to Official PLDI 2015 web site for the ARRAY 2015 Workshop - including links to proceedings Link to ACCEPTED PAPERS (Titles, authors and abstracts).

Invited talk - Saturday, June 13th at 9:00am

Array Notation for Everybody
David Padua
Department of Computer Science
University of Illinois at Urbana-Champaign

Since its emergence in the 1960s, array notation has been valued as a powerful abstraction to program in a compact form and to represent parallelism. The main theme of this presentation is that today there is much to be gained by expanding the use of array notation. That the notation can be profitably used for a wide range of problem domains, programming paradigms, and to take advantage of multiple architectural features. Indeed, array notation can be used not only for numerical linear algebra but also for different classes of symbolic computing including the implementation of graph algorithms. Extensive use of array notation would not only improve productivity, but also reduce the overhead of interpretation of dynamic languages, and facilitate the representation of shared memory parallelism, distributed memory communication operations, and locality. Furthermore, the introduction of new operators and compiler strategies would enable the use of the notation in new directions including irregular and asynchronous computations.

Focus and Description

Array-oriented programming is a powerful abstraction for compactly implementing numerically intensive algorithms. Many modern languages now provide some support for collective array operations, which are used by an increasing number of programmers (and non-programmers) for data analysis and scientific computing.

This workshop is intended to bring together researchers from many different communities, including language designers, library developers and compiler researchers, who are working on numeric languages such as R and MATLAB, general-purpose dynamic languages such as Python and JavaScript, and statically typed languages such as Haskell, Scala, and C#.

The aim of this workshop is to foster the cross-pollination of concepts across projects and research communities and to explore new directions, such as:

• Expanding the scope of array programming to encompass a wider range of data types and computations.
• Transparently utilizing parallel hardware (multi-core, SIMD, GPU, FPGA) by leveraging the implicitly parallel semantics of array operations.
• Simplifying the embedding of array constructs within existing languages which weren't designed for numerical computing.
• Connections between array abstractions and other models such as dataflow programming, stream programming, and data parallelism.
• High-level compilation and optimization techniques for array-oriented programs.
• Compilers, virtual machines and frameworks for array-oriented programming languages.

Important Dates

Please note that several groups have asked or a couple of extra days to make their final versions of their submissions. Thus, all authors may have until Wednesday, March 25th to submit their final submissions. Please make an initial submission by the original deadline so that we know how many papers we will have to review.

Paper submissions:	Monday, March 23rd, 2015 (you may update your submission until Wednesday, March 25th, 2015). (Anytime on Earth)
Notification of authors:	Monday, April 20th, 2015 (Anytime on Earth)
Submission of camera-ready copies:	Friday, May 15th, 2015 (Anytime on Earth)
Workshop date:	Saturday (all day), June 13th, 2015

Submissions

Submissions should be four to six-page papers in ACM SIGPLAN proceedings style. Submissions may be one of the following:

• research paper on any topic related to the focus of the workshop
• tool description reporting on a tool relevant to the topic of the workshop. In the case of a tool description the workshop presentation should include a demo of the tool, and the submission should include a short appendix summarizing the tool demo. This appendix is for the information of the PC only, and will not be part of the published paper, nor does it count in the six page limit.

Papers can now be submitted using EasyChair

Publication

We plan to apply for permission to have accepted papers published in the ACM Digital Library.

Schedule

The workshop will span both Saturday all day and the morning of Sunday. Schedule details will be available after the review of submissions.

Organizing Committee

• Laurie Hendren (Chair), McGill University, Canada
• Hidehiko Masuhara, Tokyo Institute of Technology, Japan
• Mary Sheeran, Chalmers University of Technology, Sweden
• Jan Vitek, Northeastern University, USA

Program Committee

The program committee includes all members of the organizing committee, plus the following members:

• Manuel Chakravarty, UNSW, Australia
• Andreas Klöckner , University of Illinois at Urbana-Champaign, USA
• Clemens Grelck, Universiteit van Amsterdam, Netherlands
• David Grove, IBM, USA
• Alex Rubinsteyn , Mount Sinai Hospital, USA
• Luke Tierney, University of Iowa, USA

Special notes for students

• SIGPLAN PAC funding: Because ARRAY 15 is sponsored by SIGPLAN, you are eligible to apply for SIGPLAN PAC funding if you are the presenter or co-author of a paper.
• PLDI 2015 Student Research Competition: Maximize your visibility and get the most out of your trip to PLDI 15 and ARRAY 15 by entering the PLDI 2015 Student Research Competition.

Previous ARRAY workshops

• ARRAY '14 (co-located with PLDI 2014)