Re: [Boost-users] [boost 1.42, gcc 4.4, ubuntu 10.10] Program hangs when using barrier.wait() even though all threads have reached wait.

On Thu, Jun 23, 2011 at 10:32 AM, Gareth wrote:

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I've also checked the bugs list for any known bugs, fixed or otherwise, to do with threading and I haven't found anything. I'm not sure what I'm doing wrong.

The problem is here: https://gist.github.com/1041351#L60 You declare _barrier first and numCPU second, so in your constructor, _barrier will be initialized first, using the value of numCPU, which hasn't been initialized yet. Just change the order of the declarations. Declare _barrier below numNPU. By the way, compiling with -Wall catches all these errors. Regards, Ignacio Burgueño