12:26 a.m.
Any idea what is difference between IPoIB and IB? If I use openib (which
comes with default RHEL) is it IPoIB? and if I use Mellanox MLNX
installation , is it IB alone?
Please clarify.
As of now I am trying to remove Mellanox and trying installing back openib?
Let see if I can make it work.
On Tue, May 7, 2013 at 7:40 PM, Mi Zhou <mi.zhou(a)stjude.org> wrote:
Hi,
We are using QDR, CentOS 6.2 and openib, it shows 40gpbs. Hope this helps.
Mi
On 05/07/2013 09:00 AM, linux freaker wrote:
Charles,
How shall I install open ib back which comes with default Rhel. Did anyone
tried using openib with 40 gbps speed? Is it known issue.? I tried using it
but it just shows 10gbps.How to bring it to 40gbps.
On 7 May 2013 19:00, "Charles Taylor" <taylor(a)hpc.ufl.edu> wrote:
> Touche! We are being forced to use the Mellanox/OFED stack now to
> support our new FDR IB cards and it *is* painful. We have a meeting with
> Mellanox today to give them "what for" (as the Geico Gecko puts it).
> They seem little concerned with the needs of their customers in this
> regard. Nonetheless, we will push.
>
> Of course, a little pressure from a competitor such as Intel, could not
> hurt either. ;)
>
> Charles A. Taylor
> UF HPC Center
>
> On May 7, 2013, at 7:36 AM, Brian J. Murrell wrote:
>
> > On Tue, 2013-05-07 at 16:57 +0530, linux freaker wrote:
> >
> >
> >>
> >> I can try it once more but really I feel its painful.
> >
> > It is, which is why we encourage people to use the I/B stack provided by
> > RedHat, already built into their kernel and the corresponding user-space
> > packages.
> >
> > It seems that a lot of people (think they) need to install the Mellanox
> > I/B stack instead. Perhaps this is true for your (and everyone else's)
> > case, or perhaps not. I can't really tell, and am not really involved
> > closely enough in I/B to know.
> >
> > But ultimately, I wonder why, given all of the apparent need for
> > whatever Mellanox does differently than the upstream OFED and/or RH I/B
> > stacks are doing, that these needs for the Mellanox stack are not being
> > pushed back into either OFED or the upstream kernel I/B stack. Life
> > really would be so much easier for so many people if it were.
> >
> > Maybe if Mellanox hears from enough of their customers about the pain it
> > is to use their hardware they might try to get their stuff upstream.
> >
> > b.
> >
> >
> >
> > _______________________________________________
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> > https://lists.01.org/mailman/listinfo/hpdd-discuss
>
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