World’s fastest supercomputer ‘El Capitan’ goes online 

The fastest supercomputer in the world has officially launched at the Lawrence Livermore National Laboratory (LNNL) in California.

The supercomputer, called “El Capitan,” cost $600 million to build and will handle various sensitive and classified tasks including securing the U.S. stockpile of nuclear weapons in the absence of underground testing, according to LNNL representatives. This was prohibited in 1992.

Research will primarily be focused on national security, including material discovery, high-energy-density physics, nuclear data and weapon design, as well as other classified tasks.

Construction on the machine began in May 2023, and it came online in November 2024, before being officially dedicated on Jan. 9.

El Capitan became the world’s fastest computer when it became fully operational last year with a score of 1.742 exaFLOPS in the High-Performance Linpack (HPL) benchmark.

This is a test used to judge supercomputing speeds all over the world. This makes El Capitan only the third computer ever to reach exascale computing speeds. It has a peak performance of 2.746 exaFLOPS.

Performance is measured in floating-point operations per second (FLOPS), where one floating-point operation is a mathematical calculation.

Although like-for-like comparisons are tricky, the best laptops usually deliver several hundred gigaFLOPS of power — that’s 1 trillion (10^9) FLOPS. An exaFLOP is 1 quintillion (10^18) FLOPS.

The next fastest supercomputer in the world is currently the Frontier supercomputer at Oak Ridge National Laboratory in Illinois.

That supercomputer has achieved a standard performance of 1.353 exaFLOPS with a peak of 2.056 exaFLOPS.

Source: World’s fastest supercomputer ‘El Capitan’ goes online — it will be used to secure the US nuclear stockpile and in other classified research