Re:Re: Re:migrating, load-balancing, 2.4.26, 2.4.24, Virtual PC

Thanks for the mods.

Heh, yeah .. it wasn't a pleasant script to run on a cluster
that was running under VMWare either ...  As there was
no cap, I assumed it would crash out with an overflow .. 
but my test environment wasn't ever going to be that fast.


----- Original Message -----
>From: "Bastian Kemmler" <[email protected]>
>To: <openmosix-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
>Subject:  [openMosix-general] Re: Re:migrating, load-balancing, 2.4.26, 2.4.24, Virtual PC
>Date: Mon, 10 Apr 2006 17:27:45 +0200
>
> Thank's a lot.
> your perl script works. So there seems to be problem with migrating shell 
> scripts.
> 
> Unfortunately one other problem ist still left. In 1 out of 20 cases the 
> script returns a memory error instead of returning results. (<- I added a 
> line with print $i and changed the while statement to $i<100000)
> 
> 
> "Ian Latter" <[email protected]> schrieb im 
> Newsbeitrag news:200604080211.k382Btb07035-JN3Mhpvxl8yNkZ0PL4EKFRtOlzBf9vR2VIuBW6zZ0iQ@public.gmane.org
> >
> > Hmm .. you might be fighting two problems here.
> >
> > Your test script looks like a shell script, but I don't
> > recognise the $((var+i)) operation .. I'm used to
> > $(( $var + $i )) ...   In the testing I did for the build
> > paper, I found that my shell script's wouldn't auto-
> > migrate, which is why I resorted to Perl .. try this out;
> >
> > #!/usr/bin/perl
> > $i=1;
> > while($i) {
> >  $i++;
> > }
> >
> > .. it should auto-migrate .. all things being equal.
> >
> >
> >
> > ----- Original Message -----
> >>From: "Bastian Kemmler" <[email protected]>
> >>To: <openmosix-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
> >>Subject:  [openMosix-general] migrating, load-balancing, 2.4.26, 2.4.24, 
> >>Virtual PC
> >>Date: Fri, 07 Apr 2006 18:31:58 +0200
> >>
> >> Hi there.
> >>
> >> Maybe someone can help me with this setup.
> >> I installed openMosix 2.4.26 for i686 using VirtualPC 2004 for
> >> virtualization. Nodes are recognizing each other. openMosixView looks 
> >> fine.
> >> Process locks are disabled and processes should migrate. master node's 
> >> speed
> >> is manually set low.
> >>
> >> Unfortunately processes won't migrate.
> >> If started with mosrun -c they process extremely slow. While using about 
> >> 60%
> >> on the main node (where the process was started) they use about 5% on a
> >> slave node. It seems as if there is still some capacity used on the main
> >> node.
> >>
> >> mosrun -<NodeID> works, but is also very slow with similar symptoms.
> >>
> >> I tried downgrading to 2.4.24 to use oMfs, but nothing changed. (mfs was
> >> mounted properly to /mfs -> nodes appeard) [also tried i368 because of
> >> Virtual PC]
> >>
> >> For testing my setup i used the following script-file:
> >>
> >> {
> >> var=0;
> >> for ((i=1;i<100000;i++));do var=$((var+i));done;
> >> echo $var;
> >> } &
> >>
> >> I also tried it without the echo, to minimize i/o-processes.
> >>
> >> Could this be a problem resulting from networkspeed? -> 100Mbit/s
> >>
> >> Thanks for spending some time on this matter,
> >> Bastian
> >>
> >>
> >>
> >>
> >>
> >>
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> >>
> >
> >
> > --
> > Ian Latter
> > Late night coder ..
> > http://midnightcode.org/
> >
> >
> >
> > -------------------------------------------------------
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> 
> 
> 
> 
> 
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--
Ian Latter
Late night coder ..
http://midnightcode.org/



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