{"id":754,"date":"2013-01-11T19:48:53","date_gmt":"2013-01-11T18:48:53","guid":{"rendered":"http:\/\/www.nico-maas.de\/wordpress\/?p=754"},"modified":"2013-01-11T19:59:14","modified_gmt":"2013-01-11T18:59:14","slug":"rasppi-supercomputing-with-rasppi-mpi","status":"publish","type":"post","link":"https:\/\/www.nico-maas.de\/?p=754","title":{"rendered":"[RaspPi] Supercomputing with RaspPi \/ MPI"},"content":{"rendered":"<p>Prof. Simon Cox has written an awesome tutorial about turning multiple RaspPis into an \"Supercomputer Cluster\". He himself build an cluster of 64 RaspPis at the University of Southampton. I could not resist but rebuild his project - with the 3 \"old\" (256MB) Pis I got. It turned out to be an quite awesome and interessting experience, introducing myself to MPI (Message Passing Interface) \u00a0for the first time. You should definitly take a look yourself.<\/p>\n<p><a title=\"http:\/\/www.southampton.ac.uk\/~sjc\/raspberrypi\/\" href=\"http:\/\/www.southampton.ac.uk\/~sjc\/raspberrypi\/\" target=\"_blank\">http:\/\/www.southampton.ac.uk\/~sjc\/raspberrypi\/<\/p>\n<p><\/a><\/p>\n<p><a href=\"https:\/\/i0.wp.com\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/2013-01-02-22.33.04.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"755\" data-permalink=\"https:\/\/www.nico-maas.de\/?attachment_id=755\" data-orig-file=\"https:\/\/i0.wp.com\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/2013-01-02-22.33.04.jpg?fit=2592%2C1936&amp;ssl=1\" data-orig-size=\"2592,1936\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.8&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;Milestone&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1357165984&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;4&quot;,&quot;iso&quot;:&quot;199&quot;,&quot;shutter_speed&quot;:&quot;0.066667&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"MPI Cluster\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/2013-01-02-22.33.04.jpg?fit=1024%2C764&amp;ssl=1\" class=\"aligncenter size-medium wp-image-755\" alt=\"MPI Cluster\" src=\"https:\/\/i0.wp.com\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/2013-01-02-22.33.04-300x224.jpg?resize=300%2C224\" width=\"300\" height=\"224\" srcset=\"https:\/\/i0.wp.com\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/2013-01-02-22.33.04.jpg?resize=300%2C224&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/2013-01-02-22.33.04.jpg?resize=1024%2C764&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/2013-01-02-22.33.04.jpg?resize=401%2C300&amp;ssl=1 401w, https:\/\/i0.wp.com\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/2013-01-02-22.33.04.jpg?w=2200&amp;ssl=1 2200w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<div class=\"shariff shariff-align-left shariff-widget-align-left\"><ul class=\"shariff-buttons theme-round orientation-horizontal buttonsize-small\"><li class=\"shariff-button printer shariff-nocustomcolor\" style=\"background-color:#a8a8a8\"><a href=\"javascript:window.print()\" title=\"print\" aria-label=\"print\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; 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He himself build an cluster of 64 RaspPis at the University of Southampton. I could not resist but rebuild his project - with the 3 \"old\" (256MB) Pis I got. It turned out to be an quite awesome and &hellip; <a href=\"https:\/\/www.nico-maas.de\/?p=754\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">[RaspPi] Supercomputing with RaspPi \/ MPI<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n<div class=\"shariff shariff-align-left shariff-widget-align-left\"><ul class=\"shariff-buttons theme-round orientation-horizontal buttonsize-small\"><li class=\"shariff-button printer shariff-nocustomcolor\" style=\"background-color:#a8a8a8\"><a href=\"javascript:window.print()\" title=\"print\" aria-label=\"print\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#999; color:#fff\"><span class=\"shariff-icon\" style=\"\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 30 32\"><path fill=\"#999\" d=\"M6.8 27.4h16v-4.6h-16v4.6zM6.8 16h16v-6.8h-2.8q-0.7 0-1.2-0.5t-0.5-1.2v-2.8h-11.4v11.4zM27.4 17.2q0-0.5-0.3-0.8t-0.8-0.4-0.8 0.4-0.3 0.8 0.3 0.8 0.8 0.3 0.8-0.3 0.3-0.8zM29.7 17.2v7.4q0 0.2-0.2 0.4t-0.4 0.2h-4v2.8q0 0.7-0.5 1.2t-1.2 0.5h-17.2q-0.7 0-1.2-0.5t-0.5-1.2v-2.8h-4q-0.2 0-0.4-0.2t-0.2-0.4v-7.4q0-1.4 1-2.4t2.4-1h1.2v-9.7q0-0.7 0.5-1.2t1.2-0.5h12q0.7 0 1.6 0.4t1.3 0.8l2.7 2.7q0.5 0.5 0.9 1.4t0.4 1.6v4.6h1.1q1.4 0 2.4 1t1 2.4z\"\/><\/svg><\/span><\/a><\/li><li class=\"shariff-button mailto shariff-nocustomcolor\" style=\"background-color:#a8a8a8\"><a href=\"mailto:?body=https%3A%2F%2Fwww.nico-maas.de%2F%3Fp%3D754&subject=%5BRaspPi%5D%20Supercomputing%20with%20RaspPi%20%2F%20MPI\" title=\"Send by email\" aria-label=\"Send by email\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; 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November 2012","format":false,"excerpt":"At the 23. of August 2012, the University of Trier held the first Raspberry Pi Convention in Germany. It was a little, but awesome gig with about 30 IT Students and other interested people. The main idea was to rise the awareness for the new microcomputer, called \"Raspberry Pi\" which\u2026","rel":"","context":"In &quot;Raspberry Pi&quot;","block_context":{"text":"Raspberry Pi","link":"https:\/\/www.nico-maas.de\/?cat=280"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/lh3.googleusercontent.com\/-v3Rw49DHstE\/UDot7aqGLWI\/AAAAAAAADUo\/h1YkdVUhn8U\/s1068\/P1010541.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/lh3.googleusercontent.com\/-v3Rw49DHstE\/UDot7aqGLWI\/AAAAAAAADUo\/h1YkdVUhn8U\/s1068\/P1010541.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/lh3.googleusercontent.com\/-v3Rw49DHstE\/UDot7aqGLWI\/AAAAAAAADUo\/h1YkdVUhn8U\/s1068\/P1010541.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":900,"url":"https:\/\/www.nico-maas.de\/?p=900","url_meta":{"origin":754,"position":1},"title":"[RaspPi] OpenWRT Trunk with latest Raspberry Pi 3.10.32+ #648 Kernel \u2013 as Image download","author":"Nico Maas","date":"11. March 2014","format":false,"excerpt":"As a lot of people asked for the OpenWRT \/ Raspberry Pi Images, I decided to make a new version which replaces the old one from this post ([RaspPi] OpenWRT Trunk with latest Raspberry Pi 3.10.18+ #585 Kernel \u2013 as Image download). That said, the rules haven't changed: - It\u2026","rel":"","context":"In &quot;OpenWRT&quot;","block_context":{"text":"OpenWRT","link":"https:\/\/www.nico-maas.de\/?cat=107"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1035,"url":"https:\/\/www.nico-maas.de\/?p=1035","url_meta":{"origin":754,"position":2},"title":"[RaspPi] Faintly glowing steady green LED on Raspberry Pi","author":"Nico Maas","date":"7. March 2015","format":false,"excerpt":"[RaspPi] Faintly glowing steady green LED on Raspberry Pi I got some serious issues with one of my Raspberry Pi, Modell B Rev. 2.0. With an recent image, the Raspberry Pi refused to boot, but did only light up the red ACT LED as well as an really faintly glowing\u2026","rel":"","context":"In &quot;Computer&quot;","block_context":{"text":"Computer","link":"https:\/\/www.nico-maas.de\/?cat=4"},"img":{"alt_text":"repair_rpi_sdcard_reader","src":"https:\/\/i0.wp.com\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/repair_rpi_sdcard_reader-300x199.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":1151,"url":"https:\/\/www.nico-maas.de\/?p=1151","url_meta":{"origin":754,"position":3},"title":"[RPi] The cheapest Raspberry Pi Cluster Ever Made","author":"Nico Maas","date":"26. December 2015","format":false,"excerpt":"As soon as the Pi Zero came out, I started on thinking about Clusters again. I wanted to create an big - but at the same time, cheap cluster. Yes, an Pi Zero is not nearly as fast, as an RPi 2. And yes, there are some problems with this\u2026","rel":"","context":"In &quot;Projects&quot;","block_context":{"text":"Projects","link":"https:\/\/www.nico-maas.de\/?cat=23"},"img":{"alt_text":"ppplink","src":"https:\/\/i0.wp.com\/www.nico-maas.de\/wordpress\/wp-content\/uploads\/ppplink-300x225.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":962,"url":"https:\/\/www.nico-maas.de\/?p=962","url_meta":{"origin":754,"position":4},"title":"[RaspPi] Virtual Accesspoint on Xbian","author":"Nico Maas","date":"20. March 2015","format":false,"excerpt":"Little How To to get an Virtual AP running on XBian. I did NOT choose to install an DHCP Server on Xbian, as I just wanted to use the central one in my network. 1.) Install software sudo apt-get update sudo apt-get install install hostapd hostap-utils iw bridge-utils 2.) Update\u2026","rel":"","context":"In &quot;Raspberry Pi&quot;","block_context":{"text":"Raspberry Pi","link":"https:\/\/www.nico-maas.de\/?cat=280"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1045,"url":"https:\/\/www.nico-maas.de\/?p=1045","url_meta":{"origin":754,"position":5},"title":"[RaspPi] Trouble with xfce4-panel on Kali Linux","author":"Nico Maas","date":"11. March 2015","format":false,"excerpt":"Errors with xfce4-panel I got an error that the xfce4-panel \/ Taskbar disappeared. I solved it by right-clicking on the Desktop, choosing Applications, Settings, Panel. After that it told me that it got no panel running, and if it should start one. I answered yes and the panel would appear\u2026","rel":"","context":"In &quot;Raspberry Pi&quot;","block_context":{"text":"Raspberry Pi","link":"https:\/\/www.nico-maas.de\/?cat=280"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/posts\/754","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=754"}],"version-history":[{"count":2,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/posts\/754\/revisions"}],"predecessor-version":[{"id":757,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=\/wp\/v2\/posts\/754\/revisions\/757"}],"wp:attachment":[{"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=754"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=754"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nico-maas.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=754"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}