Hi,

    I am a student working a University lab and mostly my job is text 
processing (running Natural Language Processing algorithms). Because the 
text (normally multiple files) is stored in the computer, it reads in 
really fast. I tried to parallelize my program with Actors, but then with 
no back pressure, my memory would go overflow. Then I was recommended to 
use Akka Stream. It handles back pressure really nicely, but my question 
is: does it really parallelize my task? If yes, what's the mechanism and 
where? (I only have a general knowledge about the flow sink model) Then 
there is Future. The only problem I have with Future is that I can't 
control the CPU usage of the computer very much, and it's relatively harder 
to write than Actor model and Stream model.

    Can anyone let me know if I can use Akka Stream to parallelize tasks 
and how?

    Thank you!

Sincerely,
Allen Nie

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