{"id":23576,"date":"2026-01-19T11:30:56","date_gmt":"2026-01-19T10:30:56","guid":{"rendered":"https:\/\/blog.rwth-aachen.de\/itc\/?p=23576"},"modified":"2026-01-19T09:06:44","modified_gmt":"2026-01-19T08:06:44","slug":"hpc-rueckblick-2025-entwicklungen-kooperationen-und-highlights","status":"publish","type":"post","link":"https:\/\/blog.rwth-aachen.de\/itc\/en\/2026\/01\/19\/hpc-rueckblick-2025-entwicklungen-kooperationen-und-highlights\/","title":{"rendered":"HPC Review 2025 \u2013 Developments, Collaborations and Highlights"},"content":{"rendered":"<div class=\"twoclick_social_bookmarks_post_23576 social_share_privacy clearfix 1.6.4 locale-en_US sprite-en_US\"><\/div><div class=\"twoclick-js\"><script type=\"text\/javascript\">\/* <![CDATA[ *\/\njQuery(document).ready(function($){if($('.twoclick_social_bookmarks_post_23576')){$('.twoclick_social_bookmarks_post_23576').socialSharePrivacy({\"txt_help\":\"Wenn Sie diese Felder durch einen Klick aktivieren, werden Informationen an Facebook, Twitter, Flattr, Xing, t3n, LinkedIn, Pinterest oder Google eventuell ins Ausland \\u00fcbertragen und unter Umst\\u00e4nden auch dort gespeichert. N\\u00e4heres erfahren Sie durch einen Klick auf das <em>i<\\\/em>.\",\"settings_perma\":\"Dauerhaft aktivieren und Daten\\u00fcber-tragung zustimmen:\",\"info_link\":\"http:\\\/\\\/www.heise.de\\\/ct\\\/artikel\\\/2-Klicks-fuer-mehr-Datenschutz-1333879.html\",\"uri\":\"https:\\\/\\\/blog.rwth-aachen.de\\\/itc\\\/en\\\/2026\\\/01\\\/19\\\/hpc-rueckblick-2025-entwicklungen-kooperationen-und-highlights\\\/\",\"post_id\":23576,\"post_title_referrer_track\":\"HPC+Review+2025+%E2%80%93+Developments%2C+Collaborations+and+Highlights\",\"display_infobox\":\"on\"});}});\n\/* ]]> *\/<\/script><\/div><p><div id=\"attachment_23577\" style=\"width: 310px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-23577\" class=\"size-medium wp-image-23577\" src=\"https:\/\/blog.rwth-aachen.de\/itc\/files\/2026\/01\/HPC_20260105_BAU_Blog-300x200.png\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/blog.rwth-aachen.de\/itc\/files\/2026\/01\/HPC_20260105_BAU_Blog-300x200.png 300w, https:\/\/blog.rwth-aachen.de\/itc\/files\/2026\/01\/HPC_20260105_BAU_Blog-1024x683.png 1024w, https:\/\/blog.rwth-aachen.de\/itc\/files\/2026\/01\/HPC_20260105_BAU_Blog-768x512.png 768w, https:\/\/blog.rwth-aachen.de\/itc\/files\/2026\/01\/HPC_20260105_BAU_Blog.png 1500w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-23577\" class=\"wp-caption-text\">Source: Own Illustration<\/p><\/div><\/p>\n<p>For the High-Performance Computing (HPC) division at the IT Center of RWTH Aachen University, 2025 was marked by international exchange, practice-oriented workshops, sustainability initiatives, technological developments, and numerous activities related to HPC use and competence building. In this review, we summarize key events, projects, and successes.<\/p>\n<p><!--more--><\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #00549f;\">International Impulses<\/span><\/h3>\n<p>One of the highlights of the year was our participation in the international <a href=\"https:\/\/blog.rwth-aachen.de\/itc\/en\/2025\/12\/17\/rueckblick-auf-die-sc25\/\">Supercomputing Conference (SC25)<\/a> in St. Louis, USA. Under the motto &#8220;HPC ignites,&#8221; around 15,000 participants gathered to discuss current research results, technological trends, and future challenges in the field of HPC. The IT Center was represented by several experts at the conference. Particularly noteworthy was the OpenMP tutorial &#8220;Mastering OpenMP Tasking,&#8221; in which our Chief HPC Officer <a href=\"https:\/\/www.itc.rwth-aachen.de\/cms\/it-center\/it-center\/profil\/team\/~ooap\/christian-terboven\/?allou=1&amp;lidx=1\">Christian Terboven<\/a> gave insights into modern tasking concepts as a speaker.\u00a0 As part of the SC25 Technical Program, the IT Center was also represented with a workshop and a poster session, providing important insights into correctness and tasking optimization in HPC.<\/p>\n<p>In 2025, NHR4CES was again represented at the <a href=\"https:\/\/www.linkedin.com\/posts\/itcenterrwth_nhr4ces-nhr-hpc-activity-7329118877752127488-YPy8\/?utm_source=social_share_send&amp;utm_medium=member_desktop_web&amp;rcm=ACoAADYPqVIBttD9ywe2oe66LapBZPAA9KU6d3g\">ISC<\/a> in Hamburg at the joint NHR booth, where it was available for technical discussions. Several sofa talks were organized as part of this, including the talk &#8220;GPU and ML Benchmarking for HPC Procurements&#8221; moderated by <a href=\"https:\/\/www.itc.rwth-aachen.de\/cms\/it-center\/it-center\/profil\/team\/~epvp\/mitarbeiter-pvz-\/?gguid=PER-K3HNJPW&amp;allou=1&amp;lidx=1\">Sandra Wienke<\/a>. In addition, NHR4CES participated in the scientific program of the conference with several workshops and tutorials, including &#8220;Mastering Tasking with OpenMP 6.0.&#8221;<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #00549f;\">Sustainability in HPC: Green HPC &amp; Energy Efficiency<\/span><\/h3>\n<p>Sustainability is an increasingly important topic in the field of HPC. The IT Center&#8217;s approach to <a href=\"https:\/\/blog.rwth-aachen.de\/itc\/en\/2025\/04\/16\/green-hpc-nachhaltigkeit-in-den-rechenzentren-von-morgen\/\">Green HPC<\/a> aims to reduce the energy consumption and CO\u2082 emissions of data centers. A key component of this is our <a href=\"https:\/\/blog.rwth-aachen.de\/itc\/en\/2024\/10\/30\/claix-2023-2\/\">CLAIX-2023<\/a> supercomputer, which not only features powerful hardware but also innovative hot water cooling that efficiently utilizes waste heat, thereby significantly reducing the energy required for passive cooling. In addition, CLAIX-2023 is powered by renewable energies and supported by research projects such as <a href=\"https:\/\/blog.rwth-aachen.de\/itc\/en\/2024\/01\/26\/ensima\/\">ENSIMA<\/a> and <a href=\"https:\/\/blog.rwth-aachen.de\/itc\/en\/2023\/12\/20\/it-zauber-effiziente-rechenzentren\/\">IT-Zauber<\/a>, which focus on intelligent monitoring solutions and AI-supported optimizations.<\/p>\n<p>In addition to hardware-related measures, sustainability in HPC also includes software optimizations and concepts for future CO\u2082-neutral data centers that use waste heat specifically for heating energy.<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #00549f;\">Workshops and Training for HPC Users<\/span><\/h3>\n<p>A focus in 2025 was on practice-oriented training and workshops for HPC users with the aim of strengthening performance awareness and imparting optimization knowledge:<\/p>\n<ul>\n<li>In March, the annual event &#8220;Parallel Programming in Computational Engineering and Science,&#8221; or <a href=\"https:\/\/blog.rwth-aachen.de\/itc\/en\/2025\/01\/31\/von-aixcelerate-2024-zu-ppces-2025\/\">PPCES<\/a> for short, took place. This event imparts performance and porting knowledge specifically for parallel codes and was an important opportunity to strengthen practical skills in the HPC field. You can find the <a href=\"https:\/\/www.youtube.com\/playlist?list=PL1jPG9xHv0a-fnT1-CSNRpM4YM_5lo2BS\">videos<\/a> on our YouTube channel.<\/li>\n<li>Cooperation with MathWorks &amp; HPC.NRW enabled additional <a href=\"https:\/\/www.linkedin.com\/posts\/itcenterrwth_it-center-events-activity-7321488194175209472-vtvR\/?utm_source=social_share_send&amp;utm_medium=member_desktop_web&amp;rcm=ACoAADYPqVIBttD9ywe2oe66LapBZPAA9KU6d3g\">workshop series<\/a> on numerical mathematics and optimized software development in HPC environments.<\/li>\n<li>The <a href=\"https:\/\/www.linkedin.com\/posts\/itcenterrwth_modern-c-software-design-intermediate-activity-7336391365183827968-BfU5\/?utm_source=social_share_send&amp;utm_medium=member_desktop_web&amp;rcm=ACoAADYPqVIBttD9ywe2oe66LapBZPAA9KU6d3g\">C++ course with HPC.NRW<\/a> also contributed to deepening knowledge of modern HPC software development.<\/li>\n<li>In December, the <a href=\"https:\/\/blog.rwth-aachen.de\/itc-events\/en\/event\/aixcelerate-2025\/\">aiXcelerate 2025<\/a> event offered advanced users an intensive workshop on I\/O and data processing strategies for HPC and ML codes. Participants were able to apply the concepts they learned directly to their own codes and optimize them with HPC experts.<\/li>\n<\/ul>\n<p>These offerings help both beginners and experienced users to use HPC resources efficiently and design complex codes for high performance.<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #00549f;\">Anniversaries, Resources and Community Highlights<\/span><\/h3>\n<p>An important technological highlight of the year was the first year of operation of our <a href=\"https:\/\/blog.rwth-aachen.de\/itc\/en\/2024\/10\/30\/claix-2023-2\/\">CLAIX-2023<\/a> supercomputer: since its official inauguration in October 2024, the system has been continuously delivering high computing power for research and teaching and has established itself as a central resource in the HPC field.<\/p>\n<p>Social media channels such as Instagram were used this year to highlight how our HPC resources are being used, from performance visuals to insights into innovative technologies such as water cooling for CLAIX-2023.<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #00549f;\">International Collaborations and Research Stays<\/span><\/h3>\n<p>2025 provided opportunities for special international experiences: <a href=\"https:\/\/www.itc.rwth-aachen.de\/cms\/it-center\/it-center\/profil\/team\/~epvp\/mitarbeiter-pvz-\/?allou=1&amp;gguid=PER-YQ3RXYG&amp;lidx=1\">Tim Gerrits<\/a> and <a href=\"https:\/\/www.itc.rwth-aachen.de\/cms\/it-center\/it-center\/profil\/team\/~epvp\/mitarbeiter-pvz-\/?allou=1&amp;gguid=PER-Y75Y5MJ&amp;lidx=1\">Marcel Kr\u00fcger<\/a> spent three months in <a href=\"https:\/\/www.linkedin.com\/posts\/itcenterrwth_nhr4ces-nhr4ces-instagram-profile-activity-7363211043541508097-U-vH\/?utm_source=social_share_send&amp;utm_medium=member_desktop_web&amp;rcm=ACoAADYPqVIBttD9ywe2oe66LapBZPAA9KU6d3g\">Japan on a research stay<\/a>, where they worked intensively on HPC and visualization. This was made possible by NHR4CES, the NHR Association, and JHPCN, and further strengthened international exchange and collaboration in the HPC community.<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #00549f;\">Special HPC Experiences and Engagements<\/span><\/h3>\n<p>In addition to technical topics, there were also inspiring events with direct practical relevance, such as the <a href=\"https:\/\/www.instagram.com\/p\/DRkCL7mCrq2\/?utm_source=ig_web_copy_link&amp;igsh=NTc4MTIwNjQ2YQ%3D%3D\">Kaytus event in the VR Cave<\/a>. It showed how HPC, visualization, and immersive technologies can be combined and offered participants exciting access to the world of HPC visualization. It helped to bring HPC to life as a vibrant world of research and experience, as well as technical infrastructure.<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #00549f;\">Outlook for 2026<\/span><\/h3>\n<p>All these activities demonstrate how diverse and dynamic the field of high-performance computing is at the IT Center. Exciting challenges and events are already lined up for 2026, including further workshops, conferences, and technical developments in the HPC environment. The community continues to grow, competence networks are being strengthened, and HPC remains an integral part of the digital research landscape.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>Responsible for the content of this article is <a href=\"https:\/\/www.itc.rwth-aachen.de\/cms\/it-center\/it-center\/profil\/team\/~epvp\/mitarbeiter-pvz-\/?gguid=PER-FSX9U9J&amp;allou=1\">Malak Mostafa<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Sorry, this entry is only available in Deutsch.<\/p>\n","protected":false},"author":5003,"featured_media":23577,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"c2c_always_allow_admin_comments":false,"footnotes":""},"categories":[308,311,924,312,316,315,310],"tags":[1099,151,1567,110,1568,183,896],"class_list":["post-23576","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-events-jubilaen-erfolge","category-fun-facts","category-hpcnews","category-insight-it-center","category-projekte-kooperationen","category-services-support","category-studium-lehre","tag-aixcelerate","tag-claix","tag-hpc-rueckblick","tag-isc","tag-sc","tag-supercomputing","tag-workshop"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.rwth-aachen.de\/itc\/en\/wp-json\/wp\/v2\/posts\/23576","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.rwth-aachen.de\/itc\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.rwth-aachen.de\/itc\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/itc\/en\/wp-json\/wp\/v2\/users\/5003"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/itc\/en\/wp-json\/wp\/v2\/comments?post=23576"}],"version-history":[{"count":3,"href":"https:\/\/blog.rwth-aachen.de\/itc\/en\/wp-json\/wp\/v2\/posts\/23576\/revisions"}],"predecessor-version":[{"id":23592,"href":"https:\/\/blog.rwth-aachen.de\/itc\/en\/wp-json\/wp\/v2\/posts\/23576\/revisions\/23592"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/itc\/en\/wp-json\/wp\/v2\/media\/23577"}],"wp:attachment":[{"href":"https:\/\/blog.rwth-aachen.de\/itc\/en\/wp-json\/wp\/v2\/media?parent=23576"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/itc\/en\/wp-json\/wp\/v2\/categories?post=23576"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.rwth-aachen.de\/itc\/en\/wp-json\/wp\/v2\/tags?post=23576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}