On Thursday 06 October 2011, meik michalke wrote: > hi, > > am Donnerstag 06 Oktober 2011 (10:49) schrieb Matthieu Stigler: > > I just saw in recent versions the "backend has forked " message, but > > this happens even if no special parallel taks is launched but witha > > > single code: > i experienced the same thing yesterday, the fork-message appeared when i > was simply building packages (and i don't recall having parallel tasks in > roxyPackage).
As it turns out, forking is also used whenever system (..., intern=TRUE) is called. Unfortunately, I cannot see a way to differentiate this (non- problematic) case from the more tricky case of forking in order to really have two parallel R processes. So I have removed the warning (but a debug message is logged). Let's hope that the message was somewhat overcautious in the first place, and no ill side-effects occur. Regards Thomas
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