{"id":316,"date":"2015-07-03T14:32:35","date_gmt":"2015-07-03T14:32:35","guid":{"rendered":"http:\/\/srvcnthpc001.uct.ac.za\/?page_id=316"},"modified":"2018-07-05T13:16:01","modified_gmt":"2018-07-05T11:16:01","slug":"blog-2","status":"publish","type":"page","link":"https:\/\/ucthpc.uct.ac.za\/index.php\/blog-2\/","title":{"rendered":"Blog"},"content":{"rendered":"<section class=\"l-section wpb_row height_medium with_img with_overlay\" style=\"padding-top: 30px !important;padding-bottom: 30px !important;\"><div class=\"l-section-img\" style=\"background-image: url(https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2015\/07\/UCT-Front-Adjusted.jpg);\" data-img-width=\"897\" data-img-height=\"302\"><\/div><div class=\"l-section-overlay\" style=\"background-color: rgba(15,73,191,0.6)\"><\/div><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row type_default valign_top\"><div class=\"vc_col-sm-12 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\r\n\t<div class=\"wpb_text_column \">\r\n\t\t<div class=\"wpb_wrapper\">\r\n\t\t\t<h2><\/h2>\n<h2 style=\"text-align: center;\"><span style=\"color: #ffffff;\">Big-Bytes Blog<\/span><\/h2>\n\r\n\t\t<\/div>\r\n\t<\/div>\r\n<\/div><\/div><\/div><\/div><\/div><\/section><section class=\"l-section wpb_row height_medium\" style=\"padding-top: 10px !important;\"><div class=\"l-section-h i-cf\"><div class=\"g-cols vc_row type_default valign_top vc_column-gap-20\"><div class=\"vc_col-sm-4 wpb_column vc_column_container\"><div class=\"vc_column-inner color_custom\" style=\"color:#0a0a0a;\"><div class=\"wpb_wrapper\">[vc_wp_rss items=&#8221;10&#8243; title=&#8221;RSS Feed&#8221; url=&#8221;https:\/\/ucthpc.uct.ac.za\/index.php\/feed\/&#8221;]<div class=\"w-separator type_invisible size_medium\"><\/div>[vc_wp_tagcloud taxonomy=&#8221;category&#8221;]<\/div><\/div><\/div><div class=\"vc_col-sm-4 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"w-grid type_grid layout_3160\" id=\"us_grid_1\"><style id=\"us_grid_1_css\">#us_grid_1 .w-grid-item:not(:last-child){margin-bottom:5rem}#us_grid_1 .g-loadmore{margin-top:5rem}<\/style><style>#us_grid_1 .w-grid-item-h{}#us_grid_1 .usg_post_image_1{}#us_grid_1 .usg_post_title_1{font-family:\"Noto Sans\", sans-serif;font-weight:300}#us_grid_1 .usg_post_date_1{font-size:0.9rem}#us_grid_1 .usg_hwrapper_1{color:#555}#us_grid_1 .usg_post_author_1{font-size:0.9rem}#us_grid_1 .usg_post_taxonomy_1{font-size:0.9rem}#us_grid_1 .usg_post_content_1{}#us_grid_1 .usg_btn_1{}#us_grid_1 .usg_post_image_1{margin-bottom:1rem}#us_grid_1 .usg_post_title_1{margin-bottom:0.5rem}#us_grid_1 .usg_post_content_1{margin-top:0.5rem}#us_grid_1 .usg_btn_1{margin-top:1.5rem}<\/style><div class=\"w-grid-list\"><article class=\"w-grid-item ratio_1x1 post-5201 post type-post status-publish format-standard hentry category-hpc\" data-id=\"5201\">\r\n\t<div class=\"w-grid-item-h\">\r\n\t\t\t\t<h2 class=\"w-grid-item-elm usg_post_title_1 color_link_inherit  post_title entry-title\"><a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/07\/24\/hpc-downtime-sunday-26th-july\/\" rel=\"bookmark\">HPC downtime Sunday 26th July<\/a><\/h2><div class=\"w-hwrapper usg_hwrapper_1 align_left valign_top wrap \"><time class=\"w-grid-item-elm usg_post_date_1  post_date entry-date published\" datetime=\"2026-07-24 21:52:04\"><i class=\"far fa-clock\"><\/i> Jul 24, 2026<\/time><div class=\"w-grid-item-elm usg_post_author_1 color_link_inherit  post_author vcard author\"><i class=\"far fa-user\"><\/i> <a class=\"fn\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/author\/andrew-lewis\/\">Andrew Lewis<\/a><\/div><div class=\"w-grid-item-elm usg_post_taxonomy_1 color_link_inherit  post_taxonomy style_simple\"><i class=\"far fa-folder-open\"><\/i> <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/hpc\/\">hpc<\/a><\/div><\/div><div class=\"w-grid-item-elm usg_post_content_1  post_content\"><p><b><u>Dow<\/u><\/b><b><u>ntime Sunday 26th July:<\/u><\/b><\/p>\n<p>The UCT HPC head node will be down for maintenance this weekend.\u00a0 The cluster will be placed in draining mode on Saturday 25th of July at 09:00 at which point no more jobs can be &hellip;<\/p><\/div><div class=\"w-grid-item-elm usg_btn_1  btn\"><a class=\"w-btn style_outlined color_light icon_none\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/07\/24\/hpc-downtime-sunday-26th-july\/\"><span class=\"w-btn-label\">Read More<\/span><\/a><\/div>\t<\/div>\r\n<\/article>\r\n<article class=\"w-grid-item ratio_1x1 post-5169 post type-post status-publish format-standard hentry category-hpc\" data-id=\"5169\">\r\n\t<div class=\"w-grid-item-h\">\r\n\t\t\t\t<h2 class=\"w-grid-item-elm usg_post_title_1 color_link_inherit  post_title entry-title\"><a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/06\/11\/hands-on-workshop-practical-techniques-for-improving-python-code-in-research\/\" rel=\"bookmark\">Hands-on Workshop: Practical Techniques for Improving Python Code in Research<\/a><\/h2><div class=\"w-hwrapper usg_hwrapper_1 align_left valign_top wrap \"><time class=\"w-grid-item-elm usg_post_date_1  post_date entry-date published\" datetime=\"2026-06-11 11:42:41\"><i class=\"far fa-clock\"><\/i> Jun 11, 2026<\/time><div class=\"w-grid-item-elm usg_post_author_1 color_link_inherit  post_author vcard author\"><i class=\"far fa-user\"><\/i> <a class=\"fn\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/author\/andrew-lewis\/\">Andrew Lewis<\/a><\/div><div class=\"w-grid-item-elm usg_post_taxonomy_1 color_link_inherit  post_taxonomy style_simple\"><i class=\"far fa-folder-open\"><\/i> <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/hpc\/\">hpc<\/a><\/div><\/div><div class=\"w-grid-item-elm usg_post_content_1  post_content\"><p>RSSE is <a href=\"https:\/\/rsse.africa\/events\/2026-07-python-workshop\/\">hosting a workshop<\/a> on Practical Techniques for Improving Python Code in Research<\/p>\n<p>Note, this is not an introductory course on Python.<\/p>\n<p><a ref=\"magnificPopup\" href=\"https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2026\/06\/july-workshop-linkedin.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-5170\" src=\"https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2026\/06\/july-workshop-linkedin-300x300.png\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2026\/06\/july-workshop-linkedin-300x300.png 300w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2026\/06\/july-workshop-linkedin-1024x1024.png 1024w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2026\/06\/july-workshop-linkedin-150x150.png 150w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2026\/06\/july-workshop-linkedin-350x350.png 350w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2026\/06\/july-workshop-linkedin-600x600.png 600w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2026\/06\/july-workshop-linkedin-768x768.png 768w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2026\/06\/july-workshop-linkedin.png 1200w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>&hellip;<\/p><\/div><div class=\"w-grid-item-elm usg_btn_1  btn\"><a class=\"w-btn style_outlined color_light icon_none\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/06\/11\/hands-on-workshop-practical-techniques-for-improving-python-code-in-research\/\"><span class=\"w-btn-label\">Read More<\/span><\/a><\/div>\t<\/div>\r\n<\/article>\r\n<article class=\"w-grid-item ratio_1x1 post-5074 post type-post status-publish format-standard hentry category-maintenance category-operating-system\" data-id=\"5074\">\r\n\t<div class=\"w-grid-item-h\">\r\n\t\t\t\t<h2 class=\"w-grid-item-elm usg_post_title_1 color_link_inherit  post_title entry-title\"><a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/\" rel=\"bookmark\">HPC upgrade Sunday 26th of April<\/a><\/h2><div class=\"w-hwrapper usg_hwrapper_1 align_left valign_top wrap \"><time class=\"w-grid-item-elm usg_post_date_1  post_date entry-date published\" datetime=\"2026-03-13 14:24:14\"><i class=\"far fa-clock\"><\/i> Mar 13, 2026<\/time><div class=\"w-grid-item-elm usg_post_author_1 color_link_inherit  post_author vcard author\"><i class=\"far fa-user\"><\/i> <a class=\"fn\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/author\/andrew-lewis\/\">Andrew Lewis<\/a><\/div><div class=\"w-grid-item-elm usg_post_taxonomy_1 color_link_inherit  post_taxonomy style_simple\"><i class=\"far fa-folder-open\"><\/i> <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/maintenance\/\">maintenance<\/a>, <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/operating-system\/\">operating system<\/a><\/div><\/div><div class=\"w-grid-item-elm usg_post_content_1  post_content\"><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 &hellip;<\/p><\/div><div class=\"w-grid-item-elm usg_btn_1  btn\"><a class=\"w-btn style_outlined color_light icon_none\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2026\/03\/13\/hpc-upgrade\/\"><span class=\"w-btn-label\">Read More<\/span><\/a><\/div>\t<\/div>\r\n<\/article>\r\n<article class=\"w-grid-item ratio_1x1 post-5043 post type-post status-publish format-standard hentry category-hpc\" data-id=\"5043\">\r\n\t<div class=\"w-grid-item-h\">\r\n\t\t\t\t<h2 class=\"w-grid-item-elm usg_post_title_1 color_link_inherit  post_title entry-title\"><a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/08\/15\/pi-visualization-over-time\/\" rel=\"bookmark\">PI visualization over time<\/a><\/h2><div class=\"w-hwrapper usg_hwrapper_1 align_left valign_top wrap \"><time class=\"w-grid-item-elm usg_post_date_1  post_date entry-date published\" datetime=\"2025-08-15 11:29:58\"><i class=\"far fa-clock\"><\/i> Aug 15, 2025<\/time><div class=\"w-grid-item-elm usg_post_author_1 color_link_inherit  post_author vcard author\"><i class=\"far fa-user\"><\/i> <a class=\"fn\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/author\/andrew-lewis\/\">Andrew Lewis<\/a><\/div><div class=\"w-grid-item-elm usg_post_taxonomy_1 color_link_inherit  post_taxonomy style_simple\"><i class=\"far fa-folder-open\"><\/i> <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/hpc\/\">hpc<\/a><\/div><\/div><div class=\"w-grid-item-elm usg_post_content_1  post_content\"><p>A visualization of researcher uptake by our 300+ PIs over the last 15 years.<\/p>\n<p><a ref=\"magnificPopup\" href=\"https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/08\/PIresearchers.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-5044 size-full\" src=\"https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/08\/PIresearchers.jpg\" alt=\"\" width=\"892\" height=\"523\" srcset=\"https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/08\/PIresearchers.jpg 892w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/08\/PIresearchers-300x176.jpg 300w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/08\/PIresearchers-600x352.jpg 600w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/08\/PIresearchers-768x450.jpg 768w\" sizes=\"(max-width: 892px) 100vw, 892px\" \/><\/a>&hellip;<\/p><\/div><div class=\"w-grid-item-elm usg_btn_1  btn\"><a class=\"w-btn style_outlined color_light icon_none\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/08\/15\/pi-visualization-over-time\/\"><span class=\"w-btn-label\">Read More<\/span><\/a><\/div>\t<\/div>\r\n<\/article>\r\n<article class=\"w-grid-item ratio_1x1 post-5039 post type-post status-publish format-standard hentry category-gpu category-hardware category-hpc\" data-id=\"5039\">\r\n\t<div class=\"w-grid-item-h\">\r\n\t\t\t\t<h2 class=\"w-grid-item-elm usg_post_title_1 color_link_inherit  post_title entry-title\"><a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/08\/15\/hpc-updates-and-training-courses\/\" rel=\"bookmark\">HPC updates and training courses<\/a><\/h2><div class=\"w-hwrapper usg_hwrapper_1 align_left valign_top wrap \"><time class=\"w-grid-item-elm usg_post_date_1  post_date entry-date published\" datetime=\"2025-08-15 11:03:58\"><i class=\"far fa-clock\"><\/i> Aug 15, 2025<\/time><div class=\"w-grid-item-elm usg_post_author_1 color_link_inherit  post_author vcard author\"><i class=\"far fa-user\"><\/i> <a class=\"fn\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/author\/andrew-lewis\/\">Andrew Lewis<\/a><\/div><div class=\"w-grid-item-elm usg_post_taxonomy_1 color_link_inherit  post_taxonomy style_simple\"><i class=\"far fa-folder-open\"><\/i> <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/gpu\/\">GPU<\/a>, <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/hardware\/\">hardware<\/a>, <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/hpc\/\">hpc<\/a><\/div><\/div><div class=\"w-grid-item-elm usg_post_content_1  post_content\"><div><b><u><span style=\"color: #ff0000;\">IMPORTANT 1 &#8211; RUNNING CODE ON THE HEAD NODE<\/span><br \/>\n<\/u><\/b><br \/>\nWe have noticed an increasing number of people running software or installing software\\libraries directly on the head node. \u00a0Please do not do this.\u00a0 The head node is a small, virtual machine <\/div>&hellip;<\/div><div class=\"w-grid-item-elm usg_btn_1  btn\"><a class=\"w-btn style_outlined color_light icon_none\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/08\/15\/hpc-updates-and-training-courses\/\"><span class=\"w-btn-label\">Read More<\/span><\/a><\/div>\t<\/div>\r\n<\/article>\r\n<article class=\"w-grid-item ratio_1x1 post-5021 post type-post status-publish format-standard hentry category-gpu category-hardware category-hpc\" data-id=\"5021\">\r\n\t<div class=\"w-grid-item-h\">\r\n\t\t\t\t<h2 class=\"w-grid-item-elm usg_post_title_1 color_link_inherit  post_title entry-title\"><a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/07\/01\/series-ada100-tranche-2\/\" rel=\"bookmark\">Series &#8211;  ada:100 tranche 2<\/a><\/h2><div class=\"w-hwrapper usg_hwrapper_1 align_left valign_top wrap \"><time class=\"w-grid-item-elm usg_post_date_1  post_date entry-date published\" datetime=\"2025-07-01 15:19:16\"><i class=\"far fa-clock\"><\/i> Jul 1, 2025<\/time><div class=\"w-grid-item-elm usg_post_author_1 color_link_inherit  post_author vcard author\"><i class=\"far fa-user\"><\/i> <a class=\"fn\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/author\/andrew-lewis\/\">Andrew Lewis<\/a><\/div><div class=\"w-grid-item-elm usg_post_taxonomy_1 color_link_inherit  post_taxonomy style_simple\"><i class=\"far fa-folder-open\"><\/i> <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/gpu\/\">GPU<\/a>, <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/hardware\/\">hardware<\/a>, <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/hpc\/\">hpc<\/a><\/div><\/div><div class=\"w-grid-item-elm usg_post_content_1  post_content\"><p>21 brand new DELL C6620 servers, ready for power and networking.\u00a0 Each server has two 24 core Xeon Gold 6442 processors with 384GB of RAM.<\/p>\n<p>And to top it all off, a DELL R760XA with four L40S GPU cards.<\/p>\n<p><a ref=\"magnificPopup\" href=\"https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/07\/servers100seried.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-medium wp-image-5022\" src=\"https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/07\/servers100seried-300x223.jpg\" alt=\"\" width=\"300\" height=\"223\" srcset=\"https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/07\/servers100seried-300x223.jpg 300w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/07\/servers100seried-600x446.jpg 600w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/07\/servers100seried-768x571.jpg 768w, https:\/\/ucthpc.uct.ac.za\/wp-content\/uploads\/2025\/07\/servers100seried.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>&hellip;<\/p><\/div><div class=\"w-grid-item-elm usg_btn_1  btn\"><a class=\"w-btn style_outlined color_light icon_none\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/07\/01\/series-ada100-tranche-2\/\"><span class=\"w-btn-label\">Read More<\/span><\/a><\/div>\t<\/div>\r\n<\/article>\r\n<article class=\"w-grid-item ratio_1x1 post-5015 post type-post status-publish format-standard hentry category-gpu category-hardware category-hpc\" data-id=\"5015\">\r\n\t<div class=\"w-grid-item-h\">\r\n\t\t\t\t<h2 class=\"w-grid-item-elm usg_post_title_1 color_link_inherit  post_title entry-title\"><a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/06\/27\/uct-hpc-cluster-updates\/\" rel=\"bookmark\">UCT HPC cluster updates<\/a><\/h2><div class=\"w-hwrapper usg_hwrapper_1 align_left valign_top wrap \"><time class=\"w-grid-item-elm usg_post_date_1  post_date entry-date published\" datetime=\"2025-06-27 21:35:57\"><i class=\"far fa-clock\"><\/i> Jun 27, 2025<\/time><div class=\"w-grid-item-elm usg_post_author_1 color_link_inherit  post_author vcard author\"><i class=\"far fa-user\"><\/i> <a class=\"fn\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/author\/andrew-lewis\/\">Andrew Lewis<\/a><\/div><div class=\"w-grid-item-elm usg_post_taxonomy_1 color_link_inherit  post_taxonomy style_simple\"><i class=\"far fa-folder-open\"><\/i> <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/gpu\/\">GPU<\/a>, <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/hardware\/\">hardware<\/a>, <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/hpc\/\">hpc<\/a><\/div><\/div><div class=\"w-grid-item-elm usg_post_content_1  post_content\"><div><b><u><span style=\"color: #ff0000;\">IMPORTANT &#8211; SOFTWARE INSTALLS<\/span><\/u><\/b><\/div>\n<div><b><u>\u00a0<\/u><\/b><\/div>\n<div>We have noticed an increasing number of people installing software\\libraries directly via the head node.\u00a0 Please do not do this.\u00a0 Many of these installs require a large amount\u00a0of RAM or induce heavy load on the <\/div>&hellip;<\/div><div class=\"w-grid-item-elm usg_btn_1  btn\"><a class=\"w-btn style_outlined color_light icon_none\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/06\/27\/uct-hpc-cluster-updates\/\"><span class=\"w-btn-label\">Read More<\/span><\/a><\/div>\t<\/div>\r\n<\/article>\r\n<article class=\"w-grid-item ratio_1x1 post-4980 post type-post status-publish format-standard hentry category-hardware category-storage\" data-id=\"4980\">\r\n\t<div class=\"w-grid-item-h\">\r\n\t\t\t\t<h2 class=\"w-grid-item-elm usg_post_title_1 color_link_inherit  post_title entry-title\"><a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/05\/27\/cluster-updates\/\" rel=\"bookmark\">Cluster updates<\/a><\/h2><div class=\"w-hwrapper usg_hwrapper_1 align_left valign_top wrap \"><time class=\"w-grid-item-elm usg_post_date_1  post_date entry-date published\" datetime=\"2025-05-27 09:45:48\"><i class=\"far fa-clock\"><\/i> May 27, 2025<\/time><div class=\"w-grid-item-elm usg_post_author_1 color_link_inherit  post_author vcard author\"><i class=\"far fa-user\"><\/i> <a class=\"fn\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/author\/andrew-lewis\/\">Andrew Lewis<\/a><\/div><div class=\"w-grid-item-elm usg_post_taxonomy_1 color_link_inherit  post_taxonomy style_simple\"><i class=\"far fa-folder-open\"><\/i> <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/hardware\/\">hardware<\/a>, <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/storage\/\">storage<\/a><\/div><\/div><div class=\"w-grid-item-elm usg_post_content_1  post_content\"><div><\/div>\n<div><b><u>Accounts and acknowledgements<\/u><\/b><\/div>\n<div><\/div>\n<div>If you no longer require your UCT HPC account, or if you have recently submitted a thesis or paper\u00a0<a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/acknowledge-eresearch\/\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/ucthpc.uct.ac.za\/index.php\/acknowledge-eresearch\/&amp;source=gmail&amp;ust=1747902084839000&amp;usg=AOvVaw2t56H_AOZEgGvEDdsayoWw\">acknowledging<\/a>\u00a0usage of the cluster, please let us know.<\/div>\n<div><\/div>\n<div><b><u>Core reservations<\/u><\/b><\/div>\n<div><\/div>\n<div>When requesting resources please do not oversubscribe <\/div>&hellip;<\/div><div class=\"w-grid-item-elm usg_btn_1  btn\"><a class=\"w-btn style_outlined color_light icon_none\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/05\/27\/cluster-updates\/\"><span class=\"w-btn-label\">Read More<\/span><\/a><\/div>\t<\/div>\r\n<\/article>\r\n<article class=\"w-grid-item ratio_1x1 post-4930 post type-post status-publish format-standard hentry category-maintenance\" data-id=\"4930\">\r\n\t<div class=\"w-grid-item-h\">\r\n\t\t\t\t<h2 class=\"w-grid-item-elm usg_post_title_1 color_link_inherit  post_title entry-title\"><a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/03\/07\/hpc-cluster-downtime-22-23-march-2025\/\" rel=\"bookmark\">HPC Cluster Downtime 22-23 March 2025<\/a><\/h2><div class=\"w-hwrapper usg_hwrapper_1 align_left valign_top wrap \"><time class=\"w-grid-item-elm usg_post_date_1  post_date entry-date published\" datetime=\"2025-03-07 11:58:52\"><i class=\"far fa-clock\"><\/i> Mar 7, 2025<\/time><div class=\"w-grid-item-elm usg_post_author_1 color_link_inherit  post_author vcard author\"><i class=\"far fa-user\"><\/i> <a class=\"fn\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/author\/andrew-lewis\/\">Andrew Lewis<\/a><\/div><div class=\"w-grid-item-elm usg_post_taxonomy_1 color_link_inherit  post_taxonomy style_simple\"><i class=\"far fa-folder-open\"><\/i> <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/maintenance\/\">maintenance<\/a><\/div><\/div><div class=\"w-grid-item-elm usg_post_content_1  post_content\"><p><span style=\"text-decoration: underline;\"><strong>Cluster Downtime<\/strong><\/span><\/p>\n<p>The HPC cluster will be down over the weekend of 22-23 March for scheduled network maintenance. We will be placing the cluster in draining mode on Friday 21st at 17:00 at which time no further jobs may be &hellip;<\/p><\/div><div class=\"w-grid-item-elm usg_btn_1  btn\"><a class=\"w-btn style_outlined color_light icon_none\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2025\/03\/07\/hpc-cluster-downtime-22-23-march-2025\/\"><span class=\"w-btn-label\">Read More<\/span><\/a><\/div>\t<\/div>\r\n<\/article>\r\n<article class=\"w-grid-item ratio_1x1 post-4750 post type-post status-publish format-standard hentry category-maintenance\" data-id=\"4750\">\r\n\t<div class=\"w-grid-item-h\">\r\n\t\t\t\t<h2 class=\"w-grid-item-elm usg_post_title_1 color_link_inherit  post_title entry-title\"><a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2024\/10\/02\/hpc-downtime-2\/\" rel=\"bookmark\">HPC downtime<\/a><\/h2><div class=\"w-hwrapper usg_hwrapper_1 align_left valign_top wrap \"><time class=\"w-grid-item-elm usg_post_date_1  post_date entry-date published\" datetime=\"2024-10-02 09:41:04\"><i class=\"far fa-clock\"><\/i> Oct 2, 2024<\/time><div class=\"w-grid-item-elm usg_post_author_1 color_link_inherit  post_author vcard author\"><i class=\"far fa-user\"><\/i> <a class=\"fn\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/author\/andrew-lewis\/\">Andrew Lewis<\/a><\/div><div class=\"w-grid-item-elm usg_post_taxonomy_1 color_link_inherit  post_taxonomy style_simple\"><i class=\"far fa-folder-open\"><\/i> <a href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/category\/maintenance\/\">maintenance<\/a><\/div><\/div><div class=\"w-grid-item-elm usg_post_content_1  post_content\"><p>The HPC cluster will be unavailable during the weekend of the 12th of October for scheduled data center network maintenance.<\/p>\n<p>We will be placing the cluster into draining mode at 17:00 on Friday the 11th at which point no new &hellip;<\/p><\/div><div class=\"w-grid-item-elm usg_btn_1  btn\"><a class=\"w-btn style_outlined color_light icon_none\" href=\"https:\/\/ucthpc.uct.ac.za\/index.php\/2024\/10\/02\/hpc-downtime-2\/\"><span class=\"w-btn-label\">Read More<\/span><\/a><\/div>\t<\/div>\r\n<\/article>\r\n<\/div>\t\t<div class=\"g-loadmore type_block\">\r\n\t\t\t<a class=\"g-loadmore-btn\" href=\"javascript:void(0)\">\r\n\t\t\t\t<span>Load More<\/span>\r\n\t\t\t<\/a>\r\n\t\t\t<div class=\"g-preloader type_1\"><div><\/div><\/div>\r\n\t\t<\/div>\t<div class=\"w-grid-json hidden\" onclick='return {&quot;ajax_url&quot;:&quot;https:\\\/\\\/ucthpc.uct.ac.za\\\/wp-admin\\\/admin-ajax.php&quot;,&quot;permalink_url&quot;:&quot;https:\\\/\\\/ucthpc.uct.ac.za\\\/index.php\\\/2024\\\/10\\\/02\\\/hpc-downtime-2\\\/&quot;,&quot;action&quot;:&quot;us_ajax_grid&quot;,&quot;max_num_pages&quot;:37,&quot;infinite_scroll&quot;:0,&quot;template_vars&quot;:{&quot;query_args&quot;:{&quot;post_type&quot;:[&quot;post&quot;],&quot;orderby&quot;:{&quot;date&quot;:&quot;DESC&quot;},&quot;posts_per_page&quot;:&quot;10&quot;,&quot;post_status&quot;:[&quot;publish&quot;]},&quot;post_id&quot;:316,&quot;us_grid_index&quot;:1,&quot;exclude_items&quot;:&quot;none&quot;,&quot;items_offset&quot;:&quot;1&quot;,&quot;items_layout&quot;:&quot;3160&quot;,&quot;type&quot;:&quot;grid&quot;,&quot;columns&quot;:1,&quot;img_size&quot;:&quot;us_600_400_crop&quot;}}'><\/div>\r\n<\/div><\/div><\/div><\/div><div class=\"vc_col-sm-4 wpb_column vc_column_container\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">[vc_wp_archives]<\/div><\/div><\/div><\/div><\/div><\/section>\n","protected":false},"excerpt":{"rendered":"<p>The HPC cluster will be unavailable during the weekend of the 12th of October for scheduled data center network maintenance.<\/p>\n<p>We will be placing the cluster into draining mode at 17:00 on Friday the 11th at which point no new &hellip;<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Blog - 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\/blog-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Blog - UCT HPC\" \/>\n<meta property=\"og:description\" content=\"The HPC cluster will be unavailable during the weekend of the 12th of October for scheduled data center network maintenance. 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