Dear all,
I am running into an odd behaviour of my code which, from time to time,
hangs on communication. It does so only when several processes are
launched by
mpirun on each node (we have bi-procs, here so I try to use them with
cpu=2 in the hosts_list). In order to reproduce/locate/understand this
behaviour, I would like to access info concerning the LAM implementation
of MPI_Send blocking communication scheme. Particularly, I would like to
know how does LAM react as many MPI_Send's (with possibly large
messages) are call without any MPI_Recv to gather them. For example, are
there several reactions, depending on the amount and size of previously
buffered messages?
I have seen the FAQ and documentation pages but could only find that:
"The LAM Team [...] will more than likely only be able to direct you to
relevant parts of the LAM source code." So... where should I start, please?
Many thanks
Thomas
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