I tried with and without xquery:fork-join and I do not see any real difference as far as evaluation time is concerned. When it works, time gets, approximately, halved.

In my "activity monitor" I can actually see more R processes started by BaseX, but in the other case I cannot see any new process (but I guess this is expected for parallelization inside the BaseX process).

Universität Leipzig
Institute of Computer Science, NLP
Augustusplatz 10
04109 Leipzig
Deutschland
E-mail: celano@informatik.uni-leipzig.de
E-mail: giuseppegacelano@gmail.com
Web site 1: http://asv.informatik.uni-leipzig.de/en/staff/Giuseppe_Celano
Web site 2: https://sites.google.com/site/giuseppegacelano/

On Jul 24, 2018, at 9:39 AM, Christian Grün <christian.gruen@gmail.com> wrote:

Thanks.

However, if I change the content of function() with only a file:write() function (see below), it does not seem to work in parallel
: do you know why?

How did you find out?