- By:
- Luo, Lixiang ; Straatsma, Tjerk P; Suarez, Leo L; Broer, Ria; Bykov, Dmytro ; D'azevedo, Eduardo F; Faraji, Shirin; Gottiparthi, Kalyana C; Graaf, Coen; Harris, James A; Havenith, Remco; Jensen, Hj; Joubert, Wayne D; Kathir, Rk; Larkin, Jeff; Li, Ying Wai; Liakh, Dmytro ; Messer II, Otis E; Norman, Matthew R; Oefelein, Joseph; Sankaran, Ramanan ; Tillack, Andreas; Barnes, Ashleigh L; Visscher, Lucas ; Wells, Jack C; Wibowo, M.
- Journal Name:
- IBM Journal of Research and Development
- Page Number:
- 11-11
- Volume:
- 64
- Issue Number:
- 3/4
- Publication Date:
- December 27, 2023
- View DOI Listing:
- https://doi.org/10.1147/JRD.2020.2965881
Abstract
High-performance computing (HPC) increasingly relies on heterogeneous architectures to achieve higher performance. In the Oak Ridge Leadership Facility (OLCF), Oak Ridge, TN, USA, this trend continues as its latest supercomputer, Summit, entered production in early 2019. The combination of IBM POWER9 CPU and NVIDIA V100 GPU, along with a fast NVLink2 interconnect and other latest technologies, pushes system performance to a new height and breaks the exascale barrier by certain measures. Due to Summit's powerful GPUs and much higher GPU–CPU ratio, offloading to accelerators becomes a requirement for any application, which intends to effectively use the system. To facilitate navigating a complex landscape of competing heterogeneous architectures, a collection of applications from a wide spectrum of scientific domains is selected for early adoption on Summit. In this article, the experience …
