On Jun 3, 2011, at 10:12 AM, Ralph Castain wrote:
> When an MPI proc calls MPI_Init, each btl pushes its contact info into the modex database - one example is the btl.tcp.1.7 info you found there. That entry is for the TCP btl, which is probably what you are looking for. There is no way for you to edit that data - each btl encodes it in its own way and then adds it to the modex.
More specifically, whatever each entity puts into the modex is a blob that is only readable by other entities just like itself. For example, what one TCP BTL puts in the modex can really only be read by another TCP BTL. The contents of what the TCP BTL puts in there is an opaque binary blob from the modex's point of view.
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