how to run parallel on a multi-core computer, I know. The question is how to run on multi-core, where are 2 threads per core? Suppose on a 10-core computer where there are 20 threads? (-n 1/10/1 -n 1/10/2 ...) or each thread, regardless of whether it's a real kernel or a virtual one, is handled separately? ( from -n 1/20 to -n 20/20? )
On a 10-core computer with 20 threads, how many processes can be run simultaneously at the same time? 10 or 20 ?