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Subject: [OMPI devel] some question about OMPI communication infrastructure
From: Leo P. (leo_7892003_at_[hidden])
Date: 2009-06-18 09:57:24


     Hi Everyone, I wanted to ask some questions about things I am having trouble understanding. 1. As far as my understanding of MPI_INIT function, I assumed MPI_INIT typically procedure resources required including the sockets. But now as I understand from the documentation that openMPI only allocated socket when the process has to send a message to a peer. If some one could let me where exactly in the code this is happening I would appreciate a lot. I guess this is happening in ORTE layer so I am spending time looking at it. But if some one could let me in which function this is happening it will help me a lot. 2. Also I think most of the MPI implementation embed source and destination address with the communication protocol. Am I right to assume openMPI does the same thing. Is this also happening in the ORTE layer. Is there a documentation about this openMPI site? if there can someone please let me know the location of it. Sincerely, Leo.P ICC World Twenty20 England '09 exclusively on YAHOO! CRICKET http://cricket.yahoo.com