I am not sure that answers are correct here, so let me post my version. There is a difference between process – LWP (lightweight process) and user thread. I will leave process definition aside since that’s more or less known and focus on LWP vs user threads. LWP is what essentially are called today threads. … Read more
Answer depends on the VM which is used: 1) non-SMP: There is one scheduler (OS thread), which executes all Erlang processes, taken from the pool of runnable processes (i.e. those who are not blocked by e.g. receive) 2) SMP: There are K schedulers (OS threads, K is usually a number of CPU cores), which executes … Read more
GHC’s runtime provides an execution environment supporting billions of sparks, thousands of lightweight threads, which may be distributed over multiple hardware cores. Compile with -threaded and use the +RTS -N4 flags to set your desired number of cores. Specifically: does this mean that creating a lot of them (like 1000) will not have a drastic … Read more