Do POSIX threads (managing by pthread library) works parallelly? My lecturer has told us that this library creates only user threads, that are not managed by Linux kernel. I wrote some code that fill large matrix and compared times of execution for threads and whole program and it seems to works parallelly. Can I use this library to creating parallel programs with threads which are recognized by kernel?
Posix threads are kernel threads with glibc/musl (+possibly other pthread implementations) on Linux.