Chris,
I will let the xCAT team answer, of course, but AFAIK the kit is not
supported with Statelite.
We've been facing similar challenge (MIC with Statelite, also not the
default kernel) and if you can share some of your experience regarding the
issues below it will be great).
- creating bridge over the boot interface is not trivial in Statelite (we
had to create the bridge in the initrd).
- Persistent / tmpfs / shared files for MIC. for example, for us it was
simpler to create the configuration from the start every boot
(initdefault) because we have several images, each with slightly different
characteristics (one only accelerator mode, one with the bridge and OFA
OFED, unlike the MLNX OFED for our standard image).
any information is more than welcome. thx! i will post here some info
soon as well.
Regards,
Gilad Berman
HPC Architect
IBM System & Technology Group. Israel
E-mail: [email protected]
Tel: 972-3-9188262
Mobile: 972-52-2554262
The information contained in this email is being provided by IBM as a
matter of courtesy and provided "AS-IS" without any direct and implied
warranty; IBM assumes no liability. It is your responsibility to ensure
that any resulting customer proposal has been correctly designed to meet
your clients' requirements and to have an active review process which
ensures an appropriate level of solution assurance is performed for all
proposals. IBM does not take responsibility for the solution or solution
assurance.
From: Christopher Samuel <[email protected]>
To: [email protected],
Date: 30/07/2013 08:06
Subject: [xcat-user] xCAT 2.8.2 MIC support and updated kernels
(was Re: xCAT 2.8.2 Released)
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On 30/07/13 11:47, Christopher Samuel wrote:
> Our Phi nodes are all diskless (statelite) and our current install
> process using our custom postinstall scripts works well,
Well that was tempting fate, I just did some checking and noticed that
our config appears to have bitrotted and the bridging we had
configured before no longer works, so I'm going to look into use the
xCAT support for MICs now, especially as we've been lucky and the
naming convention we've used for our MICs matches xCAT's examples. :-)
Two issues that might bite us which I'd love some advice on:
1) All our nodes are diskless statelite, is that expected to work, or
not to work, with the kit?
2) We run the latest RHEL updates on the nodes and that means we've
had to rebuild the Intel MIC kernel module for them (trivial to do),
do we need to roll that into the kit or should we just install that
via yum as we do now?
All the best,
Chris
- --
Christopher Samuel Senior Systems Administrator
VLSCI - Victorian Life Sciences Computation Initiative
Email: [email protected] Phone: +61 (0)3 903 55545
http://www.vlsci.org.au/ http://twitter.com/vlsci
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