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From: Stephan Mertens (Stephan.Mertens_at_[hidden])
Date: 2004-10-12 08:49:33

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You program hangs because the rank 0 process is sending all
messages to rank 1 instead of one message to each rank > 0.
Simply replace the send command in the rank 0 loop over u by

MPI_Send(&t,1,MPI_INT,u,2,MPI_COMM_WORLD);

and everything is working like it should.

Cheers,
Stephan

-- 
Stephan Mertens @ http://www.uni-magdeburg.de/mertens 
Supercomputing in Magdeburg @ http://tina.nat.uni-magdeburg.de     

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