Thanks Christian.

Actually, I was aware of that and should have clarified that these tests did
*not* involve the IPv6 code.


On 4/17/07 1:31 AM, "Christian Kauhaus" <> wrote:

> Ralph H Castain <>:
>> even though the HNP isn't actually part of the MPI job itself, or the
>> processes are opening duplicate OOB sockets back to the HNP. I am not
>> certain which (or either) of these is the root cause, however - it needs
>> further investigation to identify the source of the extra sockets.
> If you are using the IPv6-ready code: in this case we need to create two
> sockets for each OOB/TCP. One uses AF_INET and one uses AF_INET6.
> IIRC, we close the superfluous socket once the connection attempt on
> either one succeeds. Adrian, correct me if I'm wrong. :-)
> Unfortunately, there's no easy way around this.
> Christian

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