Courtesy of J. J. van Wijk, Unfolding the Earth: Myriahedral Projections, The Cartographic Journal Vol. 45 No. 1 pp. 32-42 February 2008.


11th International Workshop on Polyhedral Compilation Techniques

January 20, 2021 | Worldwide Event

In conjunction with HiPEAC 2021, January 18-20, 2021

HiPEAC 2021

With multicore processors, hardware accelerators, and deep memory hierarchies remaining the main sources of performance and energy-efficiency, polyhedral compilation techniques receive more attention than ever from both researchers and practitioners. Thanks to a unified formalism for parallelization and memory optimization, these techniques are now powering domain-specific language compilers yielding best performance in highly competitive areas such as machine learning and numeric simulation. IMPACT is a unique event focusing exclusively on polyhedral compilation that brings together researchers and practitioners for a high-quality one-day event including a keynote and selected paper presentations.

Online Event Logistics

Since this will be the first entirely online IMPACT, we made significant changes to the schedule, compressing it in a single afternoon (CET) workshop. We use the HiPEAC online conference facilities (web, Zoom) for presentationss and discussions.

Update: IMPACT presentations are available online.

Social: IMPACT has a space! An opportunity to network, discuss in smaller groups, share a whiteboard or have a virtual drink. We have a license for up to 50 concurrent users: in case space fills up please be mindful of other participants and disconnect. You may refer to the HOWTO doc to get started.

Sponsors: We are very grateful to Reservoir Labs for supporting the workshop and sponsoring the HiPEAC conference. Google supported us in providing a space for all participants.


Slides will be uploaded shortly after the workshop.

Important Dates

Paper deadline: Extended until Sunday December 13, 2020 (AoE)
Notification of decision: January 6, 2021
Final version due: January 18, 2021
Workshop: January 20, 2021

Call For Paper Information

We welcome both theoretical and experimental papers on all aspects of polyhedral compilation and optimization. We also welcome submissions describing preliminary results, crazy new ideas, position papers, experience reports, and available tools, with an aim to stimulate discussions, collaborations, and advances in the field. The following illustrate potential IMPACT papers:

Topics of interest include, but are not limited to:


Submissions should not exceed 10 pages (recommended 8 pages), excluding references, formatted as per ACM SIGPLAN proceedings format. Please use version 1.54 or above of the following templates to prepare your manuscript: ACM Proceedings Template. Make sure to use the sigplan subformat. Visit the SIGPLAN Author Resources page for further information on SIGPLAN manuscript formatting.
NOTE: older versions of the article template use smaller fonts for submission, please double-check that you are using the recent style file (in particular, various LaTeX distributions ship older versions of the acmart style file, please download the most recent one from ACM).

Submissions should use PDF format and be printable on US Letter or A4 paper. Please submit your manuscripts through EasyChair: Deadline extended until Sunday December 13 AoE. Submission deadline has passed.

Proceedings will be posted online. If the final version of an accepted paper does not sufficiently address the comments of the reviewers, then it may be accompanied by a note from the program committee. Publication at IMPACT will not prevent later publication in conferences or journals of the presented work. However, simultaneous submission to IMPACT and other workshop, conference, or journal is often prohibited by the policy of other venues. For instance, a manuscript overlapping significantly with IMPACT submission cannot be submitted to PLDI 2021 or any other overlapping SIGPLAN event.


‪Aravind Sukumaran Rajam, Washington State University
Albert Cohen, Google

Program Committee

Contact us

Please send any questions to