The 30th International ACM Symposium on High-Performance Parallel and Distributed Computing (HPDC'21) Stockholm, Sweden on June 21-25, 2021 Overview The ACM International Symposium on High-Performance Parallel and Distributed Computing (HPDC) will include a poster session with an associated 2-page extended abstract, which will be included in the HPDC 2021 proceedings. The topics of interest follow the regular paper submission and include (but are not limited to): cloud computing, cluster computing, grid computing, big data, massively multicore, AI for systems, and extreme-scale computing systems. Accepted posters will be given the opportunity to present their work in a dedicated lightning-/blitz-session during the main conference. Submission Guidelines We invite authors to submit poster contributions in the form of a two-page extended abstract and a poster draft. Abstracts should be formatted in the ACM Proceedings Style and submitted via the poster submission web site (to be announced). Each submission should include a title, all author names and affiliations, notes whether any of the authors are students, and an indication of which author is corresponding/presenting the material. Poster abstracts will be reviewed by the poster program committee through a single-blind process and will be evaluated based on the following criteria: - Submissions must describe new and interesting ideas related to HPDC topics of interest - Submissions can present work in progress, but authors are strongly encouraged to include preliminary experimental results, if available - Student submissions meeting the above criteria will be given preference Submission Submissions should be submitted through the poster submission site at http://hpdc.org/2021/posters/call-for-posters/ Deadlines (ΑoΕ) Abstracts due: April 18th, 2021 Author notification: April 25h, 2021 Camera-ready Upload: May 2nd, 2021 Conference dates: June 21 - 25th, 2021