How Will El Capitan Run? Software and Storage Solutions Powering NNSA’s First Exascale Supercomputer

El Capitan, the National Nuclear Security Administration’s first exascale supercomputer, will likely be the world’s most powerful computer when the system is deployed in Fall 2024. But answering some of science’s most challenging questions will go beyond simply having cutting-edge hardware. Discover how the software architecture and storage systems that will drive El Capitan’s performance - from the Tri-Lab Operating System Stack (TOSS) to the innovative “Rabbit” nodes - will help Lawrence Livermore National Laboratory (LLNL) and the NNSA Tri-Labs push the boundaries of computational science. Learn about the role of open-source software in maximizing productivity, flexibility and reproducibility as LLNL scientists unveil what’s “under the hood” of El Capitan and envision its possibilities for scientific exploration.

[@Erik-rp1hi]

Those pictures on the wall.........implosion events that are computer modeled?

[@phillipdavis3316]

I like the ICF implosion progression images on the hallway walls.

[@iamatt]

When they mention portability are they referring to apptainer?

[@eliasboegel]

It refers to "performance portability", i.e. the ability to run a single piece of software at scale with good performance on a large variety of different system architectures - different CPU/GPU vendors, different architectures of different HPC systems, etc.

[@wileamyp]

I'd expect a lot of the heavy lifting behind performance portability to come from templated frameworks like RAJA and Kokkos, or using OpenMP target offload. Well, at least until more support for native C++ and Fortran parallelism comes along.

[@eliasboegel]

@@wileamyp Usually its a mix of MPI for inter-node parallelism, and any of your mentions (and more) for on-node parallelism.

[@FAFSAOFFICIAL]

VIVA LA RAZA

[@wileamyp]

But does it run Doom? 😂 Of course, someone's gonna have to port it to use ROCm first