The Tokyo Institute of Technology (Tokyo Tech) has launched a new supercomputer.

The institute recently announced the launch of Tsubame4.0 at its Suzukakedai Campus in Yokohama, Japan.

The HPE Cray XD665 system totals 240 nodes and features AMD Epyc 2954 processors and Nvidia H100 GPUs. It offers 66.8 petaflops at double-precision, and 952 petaflops at 16-bit half precision.

Tokyo Tech president, Kazuya Masu, said: "Tsubame4.0 will play an important role not only in the existing research of Tokyo Tech, such as meteorology, physical science, materials science, computational chemistry, image processing, language processing, and artificial intelligence processing, but also in the development of academic fields such as AI, medical and dental sciences, and geo-environmental sciences."

Tsubame1.0 launched in April 2006, and Tsubame2.0 in 2010 (and upgraded in 2013). Tokyo Tech said the system offers a five-fold performance increase over the Intel Xeon-powered Tsubame3.0 – launched in 2017 and ranked top in the Green500 list that year.

Tokyo Tech and HPE announced plans for the new Tsubame system in May 2023.