Ruby - Parallelism

Exercises, examples and other material relating to training module R112. This topic is presented on public courses Learning to program in Ruby, Ruby Programming

Articles and tips on this subject		updated
4680	Processing data line by line - iterator in Ruby with yield If you have a big file / flow of data in Ruby, you probably don't want to read it all in to an array before you do any processing. Not only would that mean you couldn't produce any output until you have read all the data, but it would also make for a big process - probably inefficient, possibly doing ...	2016-05-19
3156	Splitting data reading code from data processing code - Ruby An iterator (a.k.a. generator in Python) is a function which returns its results as it calculates them, rather than building them up into a larger structure to return all at once when the function is completed. So where you have a big flow of incoming data, you can handle it as it arrives rather than ...	2011-02-10
2979	Ruby - yield; parallel routines When you call a function / method in your program, you expect it to run to completion before returning control to you, passing back a result. For example, you might call a method to read a series of objects and store them into an array ... and then you could take that array of objects and, iterating ...	2010-10-01

Examples from our training material

faucet	a series of methods in a production line
feeder	yield and iterator - practical example
lynes.rb	How to write and use an iterator
papo	yield - calling back to a code block
tap	Reading a file in parallel to processing
ytb.rb	Your own data iterator

Background information

Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from [here].

Topics covered in this module

Parallel assigments. Yield.
Threads, the thread scheduler and thread exceptions.
Thread critical, Mutex and Condition variables.
Spawning processes and controlling children.
Allowing your children to go independent.

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