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    $\begingroup$ +1. Also note from the documentation: "DistributeDefinitions applies itself recursively to any symbols appearing in the definitions of the symbols s_i." $\endgroup$ Commented Dec 20, 2013 at 21:21
  • $\begingroup$ I'm not sure the opening sentence is correct, or DistributeDefinitions would be of very-corner-case usefulness only. As a simple counterexample, try BeginPackage["Test`"]; Test`f = Function[x, $KernelID]; EndPackage[]; ParallelTable[f[x], {x, 8}], where the table is obviously returning the f[x] unevaluated for the master kernel to rework. Adding DistributeDefinitions["Test`"] makes the table return a correct list of nonzero IDs. $\endgroup$ Commented Apr 24, 2016 at 18:58
  • $\begingroup$ @EmilioPisanty You know why that is. Describing every corner case is not always the most useful answer to a question. $\endgroup$ Commented Apr 24, 2016 at 19:14
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    $\begingroup$ @Szabolcs Apologies, I didn't mean to come across anywhere near aggressive. My point was that it would be helpful to add '(excluding functions in packages)', or something similar, just as a note to new users that there are special considerations in place if packages or other contexts are in use. To be frank, though, I still don't fully understand what does and does not get distributed by default by ParallelTable, so I didn't want to jump into the wiki and write something that's wrong. If you feel that it's too much load on an introductory answer, though, that's still fine =). $\endgroup$ Commented Apr 24, 2016 at 19:23