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Jeff Squyres wrote:
> Brad and I did some scale testing of IBCM and saw this error
> sometimes. It seemed to happen with higher frequency when you
> increased the number of processes on a single node.
> I talked to Sean Hefty about it, but we never figured out a definitive
> cause or solution. My best guess is that there is something wonky
> about multiple processes simultaneously interacting with the IBCM
> kernel driver from userspace; but I don't know jack about kernel
> stuff, so that's a total SWAG.
> Thanks for reminding me of this issue; I admit that I had forgotten
> about it. :-( Pasha -- should IBCM not be the default?
It is not default. I guess Lenny configured it explicitly, is not it ?
> On Jul 13, 2008, at 7:08 AM, Lenny Verkhovsky wrote:
>> I am getting this error sometimes.
>> /home/USERS/lenny/OMPI_COMP_PATH/bin/mpirun -np 100 -hostfile
>> failed to ib_cm_listen 10 times: rc=-1, errno=22
>> Hello world! I'm 0 of 100 on witch2
>> Best Regards
>> devel mailing list