[ofa-general] Usage of Infiniband Protocol Stack ?

[Kumar, Amit H.]

Thank you Hal & Joe for your prompt reply.

Two more questions:
If ifconfig for IB is just for IPoIB, is it okay to bring down this interface(ib0) and still be able to run applications like Mvapich2 and pvfs2 ??

And I also assume that we At Least Need 1 Ethernet Interface Up for the correct operation of IB compiled Applications, without which IB compiled Applications will fail. Is this correct ??

Thank you,
Amit

> -----Original Message-----
> From: Hal Rosenstock [mailto:hal.rosenstock at gmail.com]
> Sent: Friday, September 12, 2008 1:09 PM
> To: Kumar, Amit H.
> Cc: general at lists.openfabrics.org
> Subject: Re: [ofa-general] Usage of Infiniband Protocol Stack ?
>
> On Fri, Sep 12, 2008 at 12:43 PM, Kumar, Amit H. <AHKumar at odu.edu>
> 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.?
>
> ifconfig for IB interfaces shows the IPoIB stats.
>
> "Pure" IB stats are available from the PMA. These stats
> (bytes*4,packets x in/out) are total (across all applications being
> run). They can be obtained by the perfquery diagnostic tool or via a
> Performance Manager.
>
> -- Hal
>
> > Thank you,
> > Amit
> >
> >
> >
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