I reviewed the code and it seems to be ok :) The error should be reported if the port migration is already happened once (port 1 to port 2), and now you are trying to shutdown port 2 and MPI reports that it can't migrate anymore. It assumes that port 1 is still down and it can't go back to from port 2 to port 1.
Can you please build open mpi in debug mode and try to run it in verbose mode. It will help to understand better the scenario.
Pavel (Pasha) Shamis
Application Performance Tools Group
Computer Science and Math Division
Oak Ridge National Laboratory
On Feb 23, 2012, at 9:00 PM, Jeremy wrote:
> Hi Pasha,
> Thanks for your response. I look forward to hearing from you when you
> have a chance.
> On Wed, Feb 22, 2012 at 10:43 PM, Shamis, Pavel <shamisp_at_[hidden]> wrote:
>> I implemented the APM support for openib btl a long time ago. I do not remember all the details of the implementation, but I remember that it is used to support LMC bits and multiple ib ports. Unfortunately I'm super busy this week. I will try look at it early next week.
>> Pavel (Pasha) Shamis
>> Application Performance Tools Group
>> Computer Science and Math Division
>> Oak Ridge National Laboratory
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