{"id":40,"date":"2019-07-30T12:07:39","date_gmt":"2019-07-30T12:07:39","guid":{"rendered":"https:\/\/lexis-project.eu\/web\/?page_id=40"},"modified":"2022-08-07T16:51:13","modified_gmt":"2022-08-07T16:51:13","slug":"earthquake-and-tsunami","status":"publish","type":"page","link":"https:\/\/lexis-project.eu\/web\/lexis-project\/earthquake-and-tsunami\/","title":{"rendered":"Earthquake and Tsunami"},"content":{"rendered":"\n<p>The Earthquake and Tsunami large scale pilot was about building with LEXIS a time-constrained HPC emergency response simulation and decision support flow. It combined:<\/p>\n\n\n\n<ul><li>Fast, rough on-line simulations, giving immediate, but only approximate, results,<\/li><li>Accurate compute intensive simulations, giving iteratively more and more precise results about the extent and damage,<\/li><li>Offline scenario data, pre-computed scenarios to be used by experts as support for decision making,<\/li><li>Time-constrained flow control, ensuring that at pre-set deadlines, the flow provides the best information it has computed so far,<\/li><li>Live updates, so that both background information and new, ground or  sensor information is immediately propagated into the flow. External  data sources (remote sensing) will also be called upon in the process,  both on flow outcomes and as flow inputs.<\/li><li>Emergency support data products processing; maps, damage and loss estimates.<\/li><\/ul>\n\n\n\n<p>This pilot brought together among the best components in the field, covering:<\/p>\n\n\n\n<ul><li>Tsunami simulations: on-line, on-time precise simulations with TsunAWI,<\/li><li>Damage exposure and estimate with OpenBuildingMap,<\/li><li>Time constrained HPC \/ Data workflow: the ability to express time  constraints at which point preliminary data must be made available,<\/li><li>Data exchanges: the ability to acquire data, and to deliver data products on time: warnings, estimates, maps,<\/li><li>Optimisation: analysis and deployment of optimisation techniques to  improve the ability of the system to provide accurate decision support  on time,<\/li><li>Infrastructure: on the LEXIS technology and interfaces, and as a mapping on HPC and cloud resources.<\/li><\/ul>\n\n\n\n<p>The formalisation and implementation of an urgent computing workflow has been the main focus of the Earthquake and Tsunami pilot. To this end, the partners working in this pilot had to adjust their software to be able to seamlessly communicate between each other. The most computationally expensive computation of the tsunami inundation made by the TsunAWI was optimised and parallelised with MPI, which made it significantly faster. The system for managing a building database, central for damage assessment in the workflow, was completely remade from the ground up and made at least 50 times faster than before. The complete workflow then is able to provide the outputs for emergency warnings in a timely manner.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><a href=\"https:\/\/lexis-project.eu\/web\/wp-content\/uploads\/2019\/08\/Tsunami_Pilot-1.jpg\" title=\"Emergency response system; Earthquake simulator; Tsunami simulator; High performance computing (HPC)\"><img loading=\"lazy\" src=\"https:\/\/lexis-project.eu\/web\/wp-content\/uploads\/2019\/08\/Tsunami_Pilot-1-1024x435.jpg\" alt=\"Emergency response system; Earthquake simulator; Tsunami simulator; High performance computing (HPC)\" class=\"wp-image-623\" width=\"768\" height=\"326\" srcset=\"https:\/\/lexis-project.eu\/web\/wp-content\/uploads\/2019\/08\/Tsunami_Pilot-1-1024x435.jpg 1024w, https:\/\/lexis-project.eu\/web\/wp-content\/uploads\/2019\/08\/Tsunami_Pilot-1-300x127.jpg 300w, https:\/\/lexis-project.eu\/web\/wp-content\/uploads\/2019\/08\/Tsunami_Pilot-1-768x326.jpg 768w, https:\/\/lexis-project.eu\/web\/wp-content\/uploads\/2019\/08\/Tsunami_Pilot-1.jpg 1713w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/a><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The Earthquake and Tsunami large scale pilot was about building with LEXIS a time-constrained HPC emergency response simulation and decision support flow. It combined: Fast, rough on-line simulations, giving immediate, but only approximate, results, Accurate compute intensive simulations, giving iteratively more and more precise results about the extent and damage, Offline scenario data, pre-computed scenarios [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1269,"parent":16,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v16.6.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\r\n<title>Earthquake and Tsunami simulator - Lexis Project HPC<\/title>\r\n<meta name=\"description\" content=\"The Earthquake and Tsunami large scale pilot is about building with LEXIS a time-constrained High performance computing (HPC) emergency response simulation and decision support flow.\" \/>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/lexis.it4i.cz\/web\/lexis-project\/earthquake-and-tsunami\/\" \/>\r\n<meta property=\"og:locale\" content=\"en_GB\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Earthquake and Tsunami simulator - 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