Re: om2.6 What's currently showable ?

Yes, we could have some simple shared memory support, as long as it's clear
to everybody that for certain apps this will kill performance. 

Moshe

 

-----Original Message-----
From: openmosix-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
[mailto:openmosix-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org] On Behalf Of Evan
Hisey
Sent: Monday, July 24, 2006 9:56 AM
To: Florian Delizy
Cc: openmosix-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: [Openmosix-devel] om2.6 What's currently showable ?

Florain-
 Shared libs. should be fine, shared memory is a problem. There was a second
patch built to help resolve this issue in the 2.4 series. I think  the plan
is that after om gets working on 2.6. to make shared memory support part of
the standard patch.

Evan H.

On 7/24/06, Florian Delizy <[email protected]> wrote:
> Mike Wharton wrote:
> > Install 2.4.26 and show your boss that. It works brilliantly, unless 
> > there is a dire need for your demo cluster to be running a 2.6 kernel.
> Well actually, that's the case ... If I choose to use the 2.6 kernel, 
> (which I did), we have to have something *working* in a production 
> environement, and I have to demonstrate it ... on a 2.6. As I had been 
> told already, it seems that oM2.6 is able to migrate processes, unless 
> some bad syscalls happens ... Which bad syscalls ? For instance, a 
> program using a shared library would have a mmap on it, would that 
> fail on oM2.6 ?
>
> This choice is quite important to me, and moreover, I can only help 
> continuing to develop oM if I can proove the feasability with oM2.6
> >  In which
> > case just write a dumb test program and migrate that on 2.6. I 
> > believe you can demo 2.6 but processes have to be manually migrated.
> I am not sure that would be enough ... though ... I guess that 
> programs that we have to migrate are something like, using a shared 
> lib, now the question is how would taht be done ... (I don't know 
> yet). A simple scenario, if several programs are using a single shared 
> lib, and all programs are spread over different cluster nodes, would that
work ?
> > I believe the
> > plan is to use a user level daemon to handle process migration in 
> > 2.6 ( a FAR better idea imho).
> >
> >
> >
> At least that was my idea too
>
> > Mike
> >
> >
> >> quoting Vincent Hanquez :
> >>
> >>> we miss, a working OpenMosix  :)
> >>>
> >> Well, that's kind of frightening ;) I need to make a demo to my 
> >> boss in a few time, showing that openMosix can migrate processes to 
> >> a node, and execute those tasks there, is this even working ? (I hope
yes).
> >>
> >> In the same idea than the Todo list in the wiki, can we add a 
> >> feature list, which explicitely state what's working, and what's 
> >> not ?? (that would help me for instance to show the viability of 
> >> openMosix to non developer people) ...
> >>
> >>
> >> Florian Delizy
> >>
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> >>
> >
> >
> >
>
>
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