HPC Hearts & Minds

Pawsey Supercomputing Research Centre

Documenting the monumental discoveries of researchers, and the role Pawsey plays in supporting their breakthroughs. Welcome to HPC Hearts & Minds, where we talk to the people behind some of today’s most fascinating discoveries. High Performance Computing, or HPC, allows researchers to tackle incredibly complex questions. This series is all about finding out the real-world impact that comes from using this large-scale computing. We want to showcase the hearts and minds behind the technology.

Episodes

  1. Ep 1: Secrets and Tsunamis of the Indian Ocean with Charitha Pattiaratchi

    MAR 3

    Ep 1: Secrets and Tsunamis of the Indian Ocean with Charitha Pattiaratchi

    Professor Charitha Pattiaratchi is an Oceanographer at the University of Western Australia.  For over 25 years, Chari has been instrumental in showcasing the power behind the waters that surround us, including discoveries in tsunami impacts and dense shelf water transport.  Essentially oceanography studies the ocean, but there’s so much more to it, which Chari explains later. Chari received the People's Choice Award at the Premier’s Scientist of the Year for 2025 for his contributions to Australian oceanography. His work also helped discover locations of debris from the missing MH370 flight back in 2014, which we talk about as well. Using oceanic drift modelling with Pawsey’s supercomputer, Chari was able to simulate two years’ worth of moving water. This gave plane debris locations along Madagascar, Mozambique and Tanzania. Chari sees what he does as if it’s a jigsaw puzzle, taking each piece – like supercomputing, fieldwork and satellite imagery – and putting it together to see the whole picture. Chari has documented a lot of what makes our waters different from the rest of the world. He was one of the first users of iVEC, which was what Pawsey Supercomputing Research Centre was called until 2014. His love for the ocean has taken him from his home in Sri Lanka to the United Kingdom, and now in Australia, studying the Indian Ocean and why it vastly differs from other oceans. Chapters: 01:34 - Discovering Oceanography02:23 - Early Life in Sri Lanka09:35 - From Sri Lanka to the UK14:59 - Starting a Career in Computing and HPC17:32 - Arriving in Australia and the Birth of MATLAB20:58 - Supercomputers Transforming Ocean Science27:55 - Global Data Collection and Observing Systems36:04 - Major Scientific Breakthroughs41:55 - The MH370 Search46:52 - Future of Ocean Science & Climate ModellingWatch our interview with Charitha Pattiaratchi from 2019: Finding MH370 using oceanographic modelling Watch the video of this episode.   Click here to view the episode transcript.

    1h 3m

About

Documenting the monumental discoveries of researchers, and the role Pawsey plays in supporting their breakthroughs. Welcome to HPC Hearts & Minds, where we talk to the people behind some of today’s most fascinating discoveries. High Performance Computing, or HPC, allows researchers to tackle incredibly complex questions. This series is all about finding out the real-world impact that comes from using this large-scale computing. We want to showcase the hearts and minds behind the technology.