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Subject: Re: [OMPI users] [OMPI devel] Recommended tool to measure packet counters
From: Siddhartha Jana (siddharthajana24_at_[hidden])
Date: 2013-12-18 18:42:40


Ah got it ! Thanks

-- Sid

On 18 December 2013 07:44, Jeff Squyres (jsquyres) <jsquyres_at_[hidden]>wrote:

> On Dec 14, 2013, at 8:02 AM, Siddhartha Jana <siddharthajana24_at_[hidden]>
> wrote:
>
> > Is there a preferred method/tool among developers of MPI-library for
> checking the count of the packets transmitted by the network card during
> two-sided communication?
> >
> > Is the use of
> > iptables -I INPUT -i eth0
> > iptables -I OUTPUT -o eth0
> >
> > recommended ?
>
> If you're using an ethernet, non-OS-bypass transport (e.g., TCP), you
> might also want to look at ethtool.
>
> Note that these counts will include control messages sent by Open MPI, too
> -- not just raw MPI traffic. They also will not include any traffic sent
> across shared memory (or other transports).
>
> --
> Jeff Squyres
> jsquyres_at_[hidden]
> For corporate legal information go to:
> http://www.cisco.com/web/about/doing_business/legal/cri/
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