Every time I run Hail, all the threads are called in,so could you please tell me how do I control the threads used by the Hail runtime.
This is controlled by Spark, and you can set it with the
master argument to
hl.init: https://hail.is/docs/0.2/api.html#hail.init. For example:
hl.init(master='local') to use 2 cores.