[ofa-general] Need help with Infiniband problem

[Joe Landman]

jeffrey Lang wrote:
> First let me say, I hope this is the right list for this email, if not 
> please forgive me.
> 
> I have a small 16 node compute cluster.    The university where I work 
> at recently opened a new Datacenter.  My cluster was moved from the old 
> Datacenter.   Before the move the inifiniband was working properly, 
> after the move the ipoib has stopped working.

[...]

> I've reset the sm on the switch, but nothing seems to work.
> 
> Any ideas of where to look for whats causing the problem?

Could you do an

	lsmod | grep ib_

I assume you did an

	/etc/init.d/openibd restart

If not, now is a good time ... then rerun the lsmod above.

If you don't see ib_ipoib, then you might try this

	ifconfig ib0 up
	
then send the output of

	lsmod | grep ib_
	ifconfig ib0
	
If these still don't work, try

	modprobe ib_ipoib
	ifconfig ib0 up
	ifconfig ib0
	



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Joseph Landman, Ph.D
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