<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class="">We are pleased to announce the</div><div class=""><br class=""></div><div class=""> - next PETSc users meeting, June 5-7, 2023, in Chicago on the campus of IIT (mark your calendars, further information will be forthcoming soon) and the</div><div class=""><br class=""></div><div class=""> - release of PETSc version 3.18.0 at <a href="https://petsc.org/release/install/download/" class="">https://petsc.org/release/install/download/</a>. This release includes</div><div class=""><br class=""></div><div class=""> + far more extensive solvers on GPUs, including an efficient MatSetValuesCOO() for setting matrix values directly on the GPU</div><div class=""><br class=""></div><div class=""> + improved interfaces to Kokkos, so user GPU code can now be written in Kokkos, CUDA, or HIP.</div><div class=""><br class=""></div><div class=""> + vastly improved documentation at <a href="http://petsc.org" class="">petsc.org</a> with a more comprehensive user manual and better search capabilities (due to Patrick Sanan)</div><div class=""><br class=""></div><div class="">We recommend upgrading to PETSc 3.18.0 soon. As always, please report problems to <a href="mailto:petsc-maint@mcs.anl.gov" class="">petsc-maint@mcs.anl.gov</a> and ask questions at <a href="mailto:petsc-users@mcs.anl.gov" class="">petsc-users@mcs.anl.gov</a></div><div class=""><br class=""></div><div class="">A list of the major changes and updates can be found at <a href="https://petsc.org/release/docs/changes/318" class="">https://petsc.org/release/docs/changes/318</a><br class=""><br class="">The final update to petsc-3.17 i.e petsc-3.17.5 is also available<br class=""><br class="">This release includes contributions from<br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">AdelekeBankole</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Aidan Hamilton</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Albert Cowie</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Alexis Marboeuf</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Barry Smith</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Blaise Bourdin</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Dave May</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">David Andrs</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">David Wells</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Fande Kong</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">ftrigaux</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Getnet Betrie</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Hong Zhang</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jacob Faibussowitsch</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">James Wright</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">JDBetteridge</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jed Brown</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jeremy L Thompson</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Joe Wallwork</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jose Roman</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Junchao Zhang</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Justin Chang</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Kaushik Kulkarni</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Kerry Key</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Koki Sagiyama</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Lawrence Mitchell</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Lisandro Dalcin</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Mark Adams</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Martin Diehl</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Matthew Knepley</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Matthew Woehlk</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Min RK</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Mr. Hong Zhang</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Patrick Farrell</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Patrick Sanan</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Pierre Jolivet</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Richard Tran Mills</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Romain Beucher</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Satish Balay</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Scott Kruger</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Stefano Zampini</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">suyashtn</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Toby Isaac</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Todd Munson</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Umberto Zerbinati</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Vaclav Hapla</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Zongze Yang</span><br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">and bug reports/proposed improvements received from</span><br style="font-size: 13px;" class=""><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Brad Aagaard</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Abylay Zhumekenov</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Aidan Hamilton</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Alfredo J Duarte Gomez</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Bro H</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Collins, Eric</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Benjamin Dudson</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Ed Bueler</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Erhan Turan</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Eric Chamberland</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Fackler, Philip</span><br style="font-size: 13px;" class=""><a href="mailto:flw@rzg.mpg.de" style="font-size: 13px;" class="">flw@rzg.mpg.de</a><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Glenn Hammond</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Henrik Büsing</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jacob Simon Merson</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jesper Lund-Carlson</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jin Chen</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">John Snyder</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Jose E. Roman</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Kaustubh Khedkar</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Lisandro Dalcin</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Lucas Banting</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Matthew Knepley</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Nicolas Berlie</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Nicolas Tardieu</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class=""> Robert </span><span style="font-size: 13px;" class="">Nourgaliev</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Olivier Jamond</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Patrick Sanan</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Pierre Jolivet</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Rafel Amer Ramon</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Randall J LeVeque</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Richard F. Katz</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Sanjay Govindjee</span><br style="font-size: 13px;" class=""><a href="mailto:san.temporal@gmail.com" style="font-size: 13px;" class="">san.temporal@gmail.com</a><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Sidarth Narayanan</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Stefano Zampini</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">TAY wee-beng</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Victor Eijkhout</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Victoria Hamtiaux</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Xiaoye S. Li</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Xu Hui</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Yang Liu</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Ye Changqing</span><br style="font-size: 13px;" class=""><span style="font-size: 13px;" class="">Zakariae Jorti</span><br style="font-size: 13px;" class=""></div><div class=""><span style="font-size: 13px;" class=""><br class=""></span></div></body></html>