ICAMS HPC-IT Exascale Readiness Report
Interagency Council for Advancing Meteorological Services (ICAMS) portal.
The High-Performance Computing Implementation Team (HPC-IT) recently released a report accessing the Exascale readiness of U.S. weather prediction and Earth system models. The report surveyed 12 of the major U.S. modeling efforts and outlined their strategies for utilizing Exascale supercomputer architectures. The authors noted that Exascale readiness currently requires models to be ported to GPUs, which is disruptive requiring major code restructuring or rewriting. To date a dominate programming model for using GPUs has not emerged, with modeling centers pursing performance portable libraries, domain specific languages and Fortran directives. E3SM was one of three modeling centers to contribute detailed performance results, with E3SM/SCREAM benchmarks used to compare modern CPU and GPU architectures and illustrate GPU acceleration on a per node and per Watt basis. The report was authored by researchers from many U.S. agencies, including two from E3SM, Sarat Sreepathi (ORNL) and Mark Taylor (SNL).
The HPC-IT is part of the Earth System Modeling and Prediction (ESM&P) subcommittee of The Interagency Council for Advancing Meteorological Services (ICAMS) and The Committee on Research and Innovation (CORI). ICAMS was formed in 2020 in response to the 2017 Weather Act with the goal to improve interagency coordination of meteorological services.
Links:
- ICAMS: Interagency Council for Advancing Meteorological Services
- HPC-IT Exascale Readiness Report is available from the ICAMS GitHub organization: GitHub – ICAMS-US/HPC-IT-Exascale_Readiness_Report: Report on Exascale Readiness of US Earth System Models
This article is a part of the E3SM “Floating Points” Newsletter, to read the full Newsletter check:
