SoftBank has acquired ARM mainly because of the development of the Internet-of-Things where the embedded chips of ARM play an important role. What will be the impact on HPC is unclear. SoftBank says they want to increase the server market presence of ARM. Energy efficiency is becoming more and more important for servers in data centres. So it is an important growth market for ARM, a SoftBank spokesman said, with many chips in future cars they become a supercomputer on their own. SoftBank also expects that, not being a publicly owned company anymore can also lead to be more aggressive on R&D.
Most of the revenues of ARM are in USD. That is not affected by the Brexit.
SoftBank intends to keep the ARM headquarters in Cambridge, UK. The number of employees in the UK will be doubled in 5 years time to about 3.200 headcount.