SequenceParallel windowSize parameter

[mozesa]

Hello,

when I ran the application, containing the below lines, on the server, I always have connections to the first 8 addresses.

public static Aff<RT, Unit> main(IEnumerable<string> ips) =>
    ips.SequenceParallel(connectoToIp).Map(_ => unit);

After, I adjusted the windowSize parameter to 20.

public static Aff<RT, Unit> main(IEnumerable<string> ips) =>
    ips.SequenceParallel(connectoToIp, windowSize: 20).Map(_ => unit);

Now, I can connect to 20 addresses, but I would like to know more about windowSize parameter and how the default value is obtained? For instance can I set the windowSize param to 200?
I noticed that there is some correlation between windowSize and cores number of computer.

Does the SequenceParallel use the Task Parallel Library (TPL) in the background?
Btw, the application uses mostly Async methods.

Thanks for your help in advance.