| Dates: | From 2021 |
| Operators: | Lawrence Berkeley National Laboratory |
| Sponsors: | United States Department of Energy |
| Location: | National Energy Research Scientific Computing Center |
| Architecture: | Nvidia A100 GPUs, AMD Milan CPU |
| Memory: | 256 GiB/node |
| Storage: | 35 PB, 5 TB/s Shared all-flash Lustre Filesystem[1] |
| Os: | Custom Linux-based kernel |
| Purpose: | Nuclear fusion simulations, climate projections, material and biological research and computational cosmology |
Perlmutter (also known as NERSC-9) is a supercomputer delivered to the National Energy Research Scientific Computing Center of the United States Department of Energy as the successor to Cori.[2] It is being built by Cray and is based on their Shasta architecture which utilizes Zen 3 based AMD Epyc CPUs ("Milan") and Nvidia Tesla GPUs. Its intended use-cases are nuclear fusion simulations, climate projections, and material and biological research.[3] Phase 1, completed May 27, 2022,[4] reached 70.9 PFLOPS of processing power.[5]
It is named in honor of Nobel prize winner Saul Perlmutter.