Introduction of Plasma Simulator and tips learned from porting fusion applications to MI300A¶
Haruki Seto (QST)
Abstract¶
Plasma simulator is a supercomputer dedicated to plasma and fusion science jointly operated by QST and NIFS since July 2025 at QST-Rokkasho. The system consists of three partitions, CPU-HPC partition with Xeon 6 CPUs and fast MR-DIMMs, APU-HPC partition with MI300As, and CPU-Fat-Mem partition with 5th Gen Xeon CPUs and fat DDR5-DIMMs, to cover diverse needs from plasma and fusion applications. AMD MI300A is an accelerated processing unit (APU) combined CPU and GPUs, and has been installed in the system first time in Japan. A brief introduction of the system, and tips learned from porting several fusion applications to MI300A architecture will be presented.