Re: [openMosix-general] Node tuning

[<mos...@t-...>]

Hi Kevin,

On Montag, 30. Dezember 2002 01:13, Kevin N. Carpenter wrote:
> Hi all.
>
> I'm currently playing around with a 5 node system.  Node 1 exist at the
> opposite end of a 14mbs network connection.  Nodes 2-5 are connected via
> a 100mbs hub (half duplex).
>
> If I crank up (5) CPU intensive processes on Node 1, they migrate nicely
> to the other 4 nodes.  However, apparently due to the slow interconnect,
> the processes swap around a lot and vary in CPU usage from 40-96%.
>
> If I shutdown node 1, and crank up (4) processes on the remaining nodes,
> they run at 99.9%.
>
> FWIW - I'm using the ECCP2 DC executable.  This process has a 496KB
> working set size per TOP, when running locally.  When run under
> Openmosix, TOP shows 204KB for the remote tasks (shown as sleeping) and
> 316KB for the local task (shown as running).
>
> What can I do to use all 5 nodes efficiently?  All (5) are the same with
> regards to CPU & motherboard.  Node 1 has a bit more memory and a hard
> disk.  Nodes 2->5 have less memory and are diskless.

node1 is "less" used by openMosix because of the slow network link.
You can increase the openMosix-speed (mosctl setspeed xxxx) on node1
and "fake" the load-balancing algorithm.
That will cause that processes easier migrate to your node1.

>
> Thanks,
>
> Kevin C.
<snip>

many greets,

Matt
-- 
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