The Proceedings of the 11th Regional School of High Performance Computing of São Paulo (ERAD-SP 2020) bring the papers selected and presented during the online edition of the event held between August 19th to 21st, 2020. The conference was held by São Paulo State University (Unesp), in the campus of São Paulo. In this issue, the proceedings include 8 undergraduate research papers and 17 graduate research papers. These papers were selected through a blind peer review process, from a total of 26 submitted papers. The event's program committee was coordinated by Daniel Cordeiro (USP) and Emilio Francesquini (UFABC), who organized this volume. The articles in this volume were submitted on 03/15/2020, accepted for publication on 04/29/2020, with the final version submitted on 05/18/2020.

For more information about ERAD-SP 2020, visit the website of the event.