Re: [SSI-users] OpenSSI versions

[Roger T. <rog...@gm...>]

Hi Scott,

2.0.0pre2 is an older release - aka 1.9.5 - where as 2.0.0pre1 is equivalent
to 1.9.4.  2.0.0pre1 was released after 1.9.3.

Our development mailing list mentioned that there were many changes since
2.0.0pre2 (1.9.5).  For this reason the latest work today is called 1.9.6
"preview" instead of 2.0.0pre3.

1.9.6 "preview" is just that - not really a release.  After some final
touches 1.9.6 "preview" (or actually the latest in CVS) will become
2.0.0rc1.

There will no longer be any confusion since 2.0.0rc1 naturally follows after
2.0.0pre2.

If I'm not mistaken existing releases (other than 1.9.6 "preview") have a
limit of 126 nodes.  This limit was optimized to 15 nodes in 1.9.6 "preview"
for mid-size clusters.  A patch is required to revert that.

Bruce and Jaideep (from HP Labs) talked about scaling out to hundreds or
thousands of nodes - PetaScale OpenSSI.

-Roger


On Thu, May 13, 2010 at 2:57 PM, Scott Walters <sc...@sl...> wrote:

> Hi all,
>
> (Trying again with a subject line... third time's the charm they say...)
>
> >From http://openssi.org/cgi-bin/view?page=openssi.html :
>
> #  OpenSSI 1.9.6 Preview Updated
>    * version for Debian Lenny i386 updated 2010/02/18
>    * version for Debian Lenny updated 2010/01/07
>    * version for Debian Etch updated 2010/01/07
>
> ...
>
> #  OpenSSI 2.0.0pre2 Now Available
>    * version for Fedora Core 3 released 2008/01/03
>
> Roughly, what are the differences between 1.9.6 and 2.0.0pre2?
>
> Was there a fork at some point with development happening
> concurrently on the 1.9.x branch and the 2.0.x branch?  Or is
> the Debian work just lagging in cluster software version?
>
> http://wiki.openssi.org/go/Roadmap partially answers that question
> (2.0.0preX reserved for kernel 2.6.18 or higher).
>
> I'm pretty sure I installed 1.9.6 for Debian Lenny (x86), but
> `cluster -r` reports:  "This is cluster software release 1.9.3".
> That's kind of tangential, but I can't help wondering if that can
> easily be accounted for.
>
> `cluster -m` reports 15, and I'm approaching that number of machines
> here.  Also, one of the photos at http://wiki.openssi.org/go/Showcase
> kind of suggests that clusters with more nodes exist.  Can this limit
> be easily increased in config?  I thought I read somewhere that
> the 1.2 stable branch had a similarly low limit but newer 1.9 versions
> allowed for hundreds of machines in the cluster.
>
> Do I (currently) need to run the Fedora Core version to throw nodes at
> this?
>
> I'm continuously in awe of OpenSSI.  Thank you for your work and
> for your attention.
>
> Regards,
> -scott
>
>
> ------------------------------------------------------------------------------
>
> _______________________________________________
> Ssic-linux-users mailing list
> Ssi...@li...
> https://lists.sourceforge.net/lists/listinfo/ssic-linux-users
>