) whenever they start analysing a new procedure, and whenever they resume analysing a previous procedure. This is more complicated than what, eg, `ParMap` can handle because of the bidirectional flow between children and parents.</p><p>The children send &quot;Ready&quot; or &quot;I'm working on task &lt;some string&gt;&quot; messages that are used to respectively send them more tasks (&quot;Do x&quot;) or update the task bar with the description provided by the child.</p><p>See also <a href="../ProcessPoolS