{"id":5074,"date":"2026-03-13T14:24:14","date_gmt":"2026-03-13T12:24:14","guid":{"rendered":"https:\/\/ucthpc.uct.ac.za\/?p=5074"},"modified":"2026-04-07T11:50:46","modified_gmt":"2026-04-07T09:50:46","slug":"hpc-upgrade","status":"publish","type":"post","link":"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/","title":{"rendered":"HPC upgrade Sunday 26th of April"},"content":{"rendered":"<p>We will be patching and upgrading the UCT HPC cluster on Sunday the 26th of April. The cluster will be placed into draining mode on Saturday 25th at 9am at which point no more jobs can be placed on the queue.<\/p>\n<p>Logins will be disabled Saturday 25th at 17:00 and all running jobs will be cancelled Sunday 26th at 8am.<\/p>\n<p>We hope to have the cluster back up and running by Monday 27th by 09:00.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We will be patching and upgrading the UCT HPC cluster on Sunday the 26th of April. The cluster will be placed into draining mode on Saturday 25th at 9am at which point no more jobs can be placed on the queue. Logins will be disabled Saturday 25th at 17:00 and all running jobs will be&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[33,11],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>HPC upgrade Sunday 26th of April - UCT HPC<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HPC upgrade Sunday 26th of April - UCT HPC\" \/>\n<meta property=\"og:description\" content=\"We will be patching and upgrading the UCT HPC cluster on Sunday the 26th of April. The cluster will be placed into draining mode on Saturday 25th at 9am at which point no more jobs can be placed on the queue. Logins will be disabled Saturday 25th at 17:00 and all running jobs will be...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/\" \/>\n<meta property=\"og:site_name\" content=\"UCT HPC\" \/>\n<meta property=\"article:published_time\" content=\"2026-03-13T12:24:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-07T09:50:46+00:00\" \/>\n<meta name=\"author\" content=\"Andrew Lewis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Andrew Lewis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/\"},\"author\":{\"name\":\"Andrew Lewis\",\"@id\":\"https:\/\/ucthpc.uct.ac.za\/#\/schema\/person\/c183ad1c0a1063124a72d63963ae9c7e\"},\"headline\":\"HPC upgrade Sunday 26th of April\",\"datePublished\":\"2026-03-13T12:24:14+00:00\",\"dateModified\":\"2026-04-07T09:50:46+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/\"},\"wordCount\":80,\"publisher\":{\"@id\":\"https:\/\/ucthpc.uct.ac.za\/#organization\"},\"articleSection\":[\"maintenance\",\"operating system\"],\"inLanguage\":\"en-ZA\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/\",\"url\":\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/\",\"name\":\"HPC upgrade Sunday 26th of April - UCT HPC\",\"isPartOf\":{\"@id\":\"https:\/\/ucthpc.uct.ac.za\/#website\"},\"datePublished\":\"2026-03-13T12:24:14+00:00\",\"dateModified\":\"2026-04-07T09:50:46+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/#breadcrumb\"},\"inLanguage\":\"en-ZA\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ucthpc.uct.ac.za\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"HPC upgrade Sunday 26th of April\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/ucthpc.uct.ac.za\/#website\",\"url\":\"https:\/\/ucthpc.uct.ac.za\/\",\"name\":\"UCT HPC\",\"description\":\"University of Cape Town High Performance Computing\",\"publisher\":{\"@id\":\"https:\/\/ucthpc.uct.ac.za\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/ucthpc.uct.ac.za\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-ZA\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/ucthpc.uct.ac.za\/#organization\",\"name\":\"University of Cape Town High Performance Computing\",\"url\":\"https:\/\/ucthpc.uct.ac.za\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-ZA\",\"@id\":\"https:\/\/ucthpc.uct.ac.za\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2015\/09\/logocircless.png\",\"contentUrl\":\"https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2015\/09\/logocircless.png\",\"width\":450,\"height\":423,\"caption\":\"University of Cape Town High Performance Computing\"},\"image\":{\"@id\":\"https:\/\/ucthpc.uct.ac.za\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/ucthpc.uct.ac.za\/#\/schema\/person\/c183ad1c0a1063124a72d63963ae9c7e\",\"name\":\"Andrew Lewis\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-ZA\",\"@id\":\"https:\/\/ucthpc.uct.ac.za\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/9652c9c73beeab594b8dc2383a880048?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/9652c9c73beeab594b8dc2383a880048?s=96&d=mm&r=g\",\"caption\":\"Andrew Lewis\"},\"sameAs\":[\"http:\/\/blogs.uct.ac.za\/blog\/big-bytes\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"HPC upgrade Sunday 26th of April - UCT HPC","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/","og_locale":"en_US","og_type":"article","og_title":"HPC upgrade Sunday 26th of April - UCT HPC","og_description":"We will be patching and upgrading the UCT HPC cluster on Sunday the 26th of April. 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