What do you do with the world’s largest supercomputer? This week, Technology Now looks further at the world of supercomputers and explores what the world’s largest supercomputer, El Capitan, and it’s sister machine, Tuolumne, are used for. Rob Rieben, a computational physicist at Lawrence Livermore National Laboratory, tells us more.

This is Technology Now, a weekly show from Hewlett Packard Enterprise. Every week, hosts Michael Bird and Aubrey Lovell look at a story that's been making headlines, take a look at the technology behind it, and explain why it matters to organizations and what can be learnt from it.

About Rob: https://www.linkedin.com/in/rieben1/

Sources
What are supercomputers used for:
https://www.anl.gov/science-101/supercomputing

Today I learned:
https://www.england.nhs.uk/2025/05/nhs-first-in-world-to-roll-out-revolutionary-blood-test-for-cancer-patients/
https://www.theguardian.com/society/2025/may/29/revolutionary-dna-blood-test-to-offer-thousands-in-england-tailored-cancer-care

This week in history:
https://www.esa.int/About_Us/50_years_of_ESA/50_years_of_humans_in_space/First_woman_in_space_Valentina