Excellent. Thanks for the info.
Eric
Michael Will wrote:
The standard pxe server code had issues with larger amounts of clients
wanting to boot at the same time. Some of them would time out and not
make it. Donald Becker reimplemented the server side of it to solve the
issues. I don't know anything more specific than that, but if you are
interested I am sure he would not mind if you where to contact him
directly.
Michael
-----Original Message-----
From: Eric Shook [mailto:[EMAIL PROTECTED]
Sent: Tuesday, December 12, 2006 9:27 AM
To: Michael Will
Cc: Buccaneer for Hire.; beowulf@beowulf.org
Subject: Re: [Beowulf] SATA II - PXE+NFS - diskless compute nodes
Michael,
This should be sufficient enough to run our software stack as they are
tested on rhel 4 variants. I will most definitely look closer at scyld
CW4 to see if it fits our needs.
What does reimplementing pxe boot mean specifically?
Thanks,
Eric
Michael Will wrote:
Scyld CW4 is based on RHEL4 and also supported on Centos 4. That does
not give you different operating systems though, just flexible
deployment of RHEL4 based HPC compute nodes.
Note that we had to reimplement the PXE boot part to allow reasonable
scaling.
Michael
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Eric Shook
Sent: Saturday, December 09, 2006 11:28 AM
To: Buccaneer for Hire.
Cc: beowulf@beowulf.org
Subject: Re: [Beowulf] SATA II - PXE+NFS - diskless compute nodes
Not to diverge this conversation, but has anyone had any experience
using this pxe boot / nfs model with a rhel variant? I have been
wanting to do a nfs root or ramdisk model for some-time but our
software stack requires a rhel base so Scyld and Perceus most likely
will not work (although I am still looking into both of them to make
sure)
Thanks for any help,
Eric Shook
Buccaneer for Hire. wrote:
[snip]
I agree with what Joe says about a few hundred nodes being the time
you would start to look closer at this approach.
I have started to explore the possibility of using this technology
because I would really like to see us with the ability to change OSs
and OS Personalities as needed. The question I have is with 2000+
compute nodes what kind of infrastructure do I need to support this?
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--
Eric Shook (319) 335-6714
Technical Lead, Systems and Operations - GROW http://grow.uiowa.edu
--
Eric Shook (319) 335-6714
Technical Lead, Systems and Operations - GROW
http://grow.uiowa.edu
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