×
GreekEnglish

×
  • Politics
  • Diaspora
  • World
  • Lifestyle
  • Travel
  • Culture
  • Sports
  • Cooking
Monday
08
Jun 2026
weather symbol
Athens 32°C
  • Home
  • Politics
  • Economy
  • World
  • Diaspora
  • Lifestyle
  • Travel
  • Culture
  • Sports
  • Mediterranean Cooking
  • Weather
Contact follow Protothema:
Powered by Cloudevo
> World

Cray to build El Capitan supercomputer for nuclear security apps

The US still uses a 1970s-era IBM Series/1 mainframe computer with 8-inch floppy drives to control its nuclear forces!

Newsroom May 21 09:25

Δείτε περισσότερα άρθρα μας στα αποτελέσματα αναζήτησης

Add Protothema.gr on Google

Cray has been awarded a $600 million contract to build the first exascale supercomputer for the National Nuclear Security Administration, the US Department of Energy and the NNSA announced Tuesday. Named El Capitan, the supercomputer will be among the fastest known in the world and will help manage the US’ nuclear stockpile. It’s expected to go into production by late 2023.

Supercomputers are used for power-intensive programs like quantum physics, examining whether old nuclear weapons could still explode, forecasting global climate change effects, designing engines and aircraft and reconstructing the history of the universe. The two highest-powered supercomputers are still Summit and Sierra, owned by IBM in the US, according to a June report from Top500, which twice a year ranks the highest-performing computer systems in the world.

Sierra tops out at 125 petaflops, while El Capitan could run roughly 10 times faster, according to Lawrence Livermore National Laboratory. It has a peak performance of more than 1.5 exaflops, or 1.5 quintillion calculations per second, and will be used for national nuclear security applications at more than 50 times the speed of LLNL’s Sequoia system.

>Related articles

Donald Trump Jr. in Proto Thema: Greece has incredible advantages in tourism, shipping, energy, and real estate

Edi Rama “got stuck” and accuses Greece of being jealous

Iran: We are halting strikes against Israel, but if it attacks Lebanon, we will respond more forcefully (Upd.)

See Also:

UPD – PM Mitsotakis announces 24 billion package to restart economy

Read more: cnet

Ask me anything

Explore related questions

#computers#crey#floppy drives#IBM#ICBM#nuclear forces#super-computer#usa
> More World

Follow en.protothema.gr on Google News and be the first to know all the news

See all the latest News from Greece and the World, the moment they happen, at en.protothema.gr

> Latest Stories

Reshuffle: Kotsiras replaces Kyranakis at Transport Ministry, Markopoulos becomes Deputy Finance Minister, Chatzivasileiou appointed Deputy Foreign Minister

June 8, 2026

OPEKEPE case: Tycheropoulou report backfires on accusers – Why 13 MPs were accused and what applies

June 8, 2026

Reshuffle is being expedited, possibly today or tomorrow, with minor changes and replacement of positions

June 8, 2026

The Secretary General of the Ministry of Environment, Efthimios Bakoyannis, resigned: His brother-in-law among those arrested for the urban planning ring

June 8, 2026

Donald Trump Jr. in Proto Thema: Greece has incredible advantages in tourism, shipping, energy, and real estate

June 8, 2026

Kyriakos Mitsotakis returns from the USA and clarifies about the cabinet reshuffle: decisions regarding the Maximos Mansion and the government spokesperson

June 8, 2026

At least 15 dead after 7.8-magnitude earthquake in the Philippines – Shocking videos show building collapses

June 8, 2026

Edi Rama “got stuck” and accuses Greece of being jealous

June 8, 2026
All News

> Greece

In reverence, the emotional deposition in Jerusalem, see photos & video

The Holy Temple of the Resurrection opened after many days due to the war between Israel and Iran

April 10, 2026

In the final stretch for the accreditation of joint master’s degrees: Aiming for their launch in the coming academic year

April 10, 2026

Schedule for Epitaph Procession today (10/4)

April 10, 2026

Perfect weather for Easter excursions, according to Tsatrafyllia’s forecast

April 10, 2026

Easter in Greece: The customs that continue in Greek tradition – From Nafpaktos to Corfu

April 10, 2026
Homepage
PERSONAL DATA PROTECTION POLICY COOKIES POLICY TERM OF USE
Powered by Cloudevo
Copyright © 2026 Πρώτο Θέμα