The US government has refused to let Intel help China update the world’s biggest supercomputer.
Intel applied for a licence to export tens of thousands of chips to update the Tianhe-2 computer.
The Department of Commerce refused, saying it was concerned about nuclear research being done with the machine.
In a notice published online the US Department of Commerce said it refused Intel’s application to export the chips for Tianhe-2 and three other Chinese supercomputers because the machines were being used for « nuclear explosive activities ». The relevant section of US export regulations reveals that this covers technologies used in the « design, development or fabrication » of nuclear weapons.