Re: [K12OSN] IMHO openmossix
robert (info@synapticsolutions.com.au)
Fri, 18 Apr 2003 16:42:50 +1000
[snip]
but I don't know much about openMosix.
> (ie, I've heard the name, and a tiny bit about it, but that's it.)
>
> How is it useful in a school lab?
First of all I am no expert. This is my understanding so far.. Correct me where
I am wrong
Our test set up..
4 x cpu of pI 133 >233 64Mb ram >
1 x PIII 933mhz 500Mb RAM file server [running linux]
1 x Terminal server with 128Mb ram and a dual PII 500Mhz
In "normal" open-mossix proccess are migrated across the network to the machine
that is most idle. In effect ram and cpu become shared.
Applications do not need to be built to handle this as the openmossix process
is transparent to the applications.
No more than 5% of bandwidth is used in this process.
This only happens if the machine is running an open-mossix kernel. This is a
simple rpm installation which patches the kernel. So far so good.
The Terminal server and file server are migrating work back and forward or one
way as you decide you can see whats going on with openmossixview [catchy name] a
very graphical thingy that really does impress all who see it!
Now to get the terminals involved as they don't have hard drives this is a wee
bit tricky..
There is a brilliant howto to enable the terminals to participate in this.
It requires a kernel complile. The howto is extensive and detailed. I am sure
some one here will be able to explain in all the gory detail how it works...
The main reason I see it as a core thing is that in a dual boot environment
where the "workstaion" are powereful enough to run Windose XP there will be
resistance to turning them into terminals when they reboot into a ltsp client
they will get a free super computer..
--
Robert Slater
www.synapticserver.com
www.synapticsolutions.com.au
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