Dear colleagues, We would like to communicate the deadline extension for the <https://www.highperformancegraphics.org/2021/call-for-participation/> Posters Program of the <https://www.highperformancegraphics.org/2021/call-for-participation/> High-Performance Graphics <https://www.highperformancegraphics.org/2021/call-for-participation/> Conference that will be held online next July 6-9, 2021. We invite the submission of posters describing ongoing or late-breaking work. *** The new deadline for poster submissions will extend until June 21, 22:00 UTC/GMT, 2021. Submission template available <https://srmv2.eg.org/COMFy/Conference/HPG_2021/GetConferenceFile?fileID=123 34> here *** (The notification of acceptance will be on June 25, 2021). *** The best poster will receive a cash prize of $500. So, do not skip this last chance to participate with your best on-going work !!. *** Please note that posters are not considered archival publications and thus should not prevent submitting the work therein to other publication venues. Looking forward to (virtually) meeting all of you at <https://www.highperformancegraphics.org/2021/> HPG 2021 !! Kind Regards, José A. Iglesias-Guitián - HPG Posters Chair