[ofa-general] Usage of Infiniband Protocol Stack ?

[Joe Landman]

Kumar, Amit H. wrote:
> I have some applications(mvapich2, pvfs2 …) compiled to use the OFED 
> Infiniband protocol stack.
>  
> May be a stupid  question ..:
> Is it valid to see at the “ifconfig ib0” stats to report the usage of IB 
> protocol stack,  regardless what application I making use of the IB stack.?

Hi Amit:

   Only if they have loaded/configured IPoIB.   If they haven't 
configured it, you might be able to try

	ibnodes

and see if this reports anything on the network.  We do tend to 
configure this for our customers clusters precisely as a 
diagnostics/testing tool (and as a way to enable infiniband-ignoring MPI 
stacks such as MPICH1/2 to have a fighting chance of using infiniband).

Joe


>  
> Thank you,
> Amit
>  
>  
>  
> 
> 
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Joseph Landman, Ph.D
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