It doesn't really matter how advanced your supercomputing infrastructure is .... the simulation is as good as the input and data from actual tests.
The big question is whether China is confident enough with the data they have from 47 tests.
Any non-subcritical testing is a gift to China as they are severely lagging behind US on number of tests conducted and therefore amount of data collected about warhead design.
Resumption of tests would add fresh data to verify new warhead designs over the decades since the last test. US would have a lesser need for new data given the amount of testing done during the cold war.
If US does conduct a nuclear test I bet a whole slew of test from China would come very shortly after that. Work has already been noticed in recent years in the test tunnel.
The big question is whether China is confident enough with the data they have from 47 tests.
Any non-subcritical testing is a gift to China as they are severely lagging behind US on number of tests conducted and therefore amount of data collected about warhead design.
Resumption of tests would add fresh data to verify new warhead designs over the decades since the last test. US would have a lesser need for new data given the amount of testing done during the cold war.
If US does conduct a nuclear test I bet a whole slew of test from China would come very shortly after that. Work has already been noticed in recent years in the test tunnel.
https://asia.nikkei.com/static/vdata/infographics/satellite-...