{"id":2959,"date":"2022-02-01T08:55:11","date_gmt":"2022-02-01T14:55:11","guid":{"rendered":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/?post_type=tribe_events&#038;p=2959"},"modified":"2022-02-01T08:55:11","modified_gmt":"2022-02-01T14:55:11","slug":"lans-seminar-25","status":"publish","type":"tribe_events","link":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/event\/lans-seminar-25\/","title":{"rendered":"LANS Seminar"},"content":{"rendered":"<p><strong>Seminar Title<\/strong>: Taking FEEC Seriously and Literally<br \/>\n<strong>Speaker<\/strong>: Tobin Isaac, Assistant Professor, Computational Science and Engineering, Georgia Tech<\/p>\n<p><strong>Date\/Time<\/strong>: February 21, 2022 \/ 10:00 AM &#8211; 11:00 AM<br \/>\n<strong>Location<\/strong>: See meeting URL on the cels-seminars website\u00a0(requires Argonne login)<\/p>\n<p><strong>Host<\/strong>: Stefan Wild<\/p>\n<hr \/>\n<p><strong>Description<\/strong>: Finite Element Exterior Calculus (FEEC) is a powerful tool for analyzing all of the finite element spaces in the de Rham complex &#8212; H^1, H(curl), H(div), L^2 &#8212; as one.\u00a0 This unity is part of the public interface of popular finite element toolkits, but not as often part of the implementation.<\/p>\n<p>This talk will present my experiences so far in using FEEC and other concepts, like compatible finite element systems and abstract polytopes, to define a highly configurable finite element interface in the discretization tools of PETSc, the Portable Extensible Toolkit for Scientific Computing.\u00a0 Those experiences include issues of software design (how to support non-conforming meshes in lattice representations of meshes) and performance (how to combine more exotic spaces with high-performance element kernel interfaces like libCEED).<\/p>\n<p>Taking FEEC literally when writing finite elements code has also led to a new contribution to FEEC theory.\u00a0 I will show how a single method for building trace-free functions, combined with a single extension operator, can construct all of the major FEEC elements on the simplex.<\/p>\n<p><em>Please note that the meeting URL for this event can be seen on the <\/em>cels-seminars website<em>, which requires an Argonne login.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Seminar Title: Taking FEEC Seriously and Literally Speaker: Tobin Isaac, Assistant Professor, Computational Science and Engineering, Georgia Tech Date\/Time: February 21, 2022 \/ 10:00 AM &#8211; 11:00 AM Location: See meeting URL on the cels-seminars website\u00a0(requires Argonne login) Host: Stefan &hellip; <a href=\"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/event\/lans-seminar-25\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":43,"featured_media":0,"template":"","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":"","_members_access_role":[],"_members_access_error":""},"tags":[],"tribe_events_cat":[2],"class_list":["post-2959","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-seminar","cat_seminar"],"acf":[],"_links":{"self":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events\/2959","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events"}],"about":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/types\/tribe_events"}],"author":[{"embeddable":true,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/users\/43"}],"version-history":[{"count":1,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events\/2959\/revisions"}],"predecessor-version":[{"id":2960,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events\/2959\/revisions\/2960"}],"wp:attachment":[{"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/media?parent=2959"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tags?post=2959"},{"taxonomy":"tribe_events_cat","embeddable":true,"href":"https:\/\/wordpress.cels.anl.gov\/lans-seminars\/wp-json\/wp\/v2\/tribe_events_cat?post=2959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}