Hi Pasha, >On Tue, Feb 28, 2012 at 11:34 AM, Shamis, Pavel <sham...@ornl.gov> wrote: > 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.
In my test case I never try to shutdown port 2. I start with both ports cabled up. Then I start the MPI test Then I unplug the Port 1 cable. I leave Port 2 alone. I expect the application to just keep using Port 2. So I expect the migration from Port 1 to Port 2 when I unplug the cable. But I don't expect any more migration after that. > > 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. I've recompiled with debug mode(configure --enable-debug). The resulting output (mpirun --mca btl_base_verbose 1) is too large to send (28 MB). Are there specific lines you are looking for? Or do you have a preferred method for sending you a text file? Unfortunately, I will be out of the office until Monday. I'll resume more experiments then. Thanks for your time, -Jeremy
