Thanks so much for the helpful information, Olivier. I had never even heard of docker, until you mentioned it. I'll definitely have to check it out.
On 08/02/2016 06:04 AM, LAHAYE Olivier wrote: > Hi Steven, > > To be honest, I can't tell if older versions of OSCAR still work as I did > only work on oscar 6 on CentOS-6 and CentOS-7. > 32 bit hardware is pretty old and I doubt you can find a mantained linux > distro the runs in 32bit mode. > At the time being, only the testing version is "maintained" and > unfortunately, it's only built on x86_64 hardware > (http://svn.oscar.openclustergroup.org/repos/unstable/). > If you're familiar with docker, you can try to build a 32 bit version (not > tested though) for your own purpose. > The docker files are available here: > http://svn.oscar.openclustergroup.org/pkgs/downloads/docker/ > The quick start guide is available here: > http://svn.oscar.openclustergroup.org/trac/oscar/wiki/quick_start_guide_for_rhel > But before starting the guide, you should build the 32 bits packages and > setup a repository on your network. > Then in the step 4 of the guide, you'll have to update the epel package. for > OSCAR, you can install the noarch oscar-release package and there after edit > the /etc/yum.repos/d/OSCAR.repo to point to your repository. > As your hardware is "weak", I would suggest to install a minimalistic cluster > (no ganglia, naemon and other stuffs. only the basics and the batch queuing > system (I would recommand slurm) > > how to use docker to build oscar packages: > HOWTO use it: > Chose wich distro you want to play with and then: > > 0/ Install docker on your linux host. > yum -y install docker > dnf -y install docker > urpmi --auto docker > apt-get -y install docker > or what ever is suitable for your distro. > > 1/ Build the docker image: > sudo docker build -t <yourname>/oscar_<distro>:<version> -f > Dockerfile.<distro> . > example: > sudo docker build -t john/oscar_co7:1.0 -f Dockerfile.centos7 . > > 2/ Run interactively the docker image you've built: > sudo docker run -it <yourname>/oscar_<distro>:<version> > example: > sudo docker run -it john/oscar_co7:1.0 > > 3/ Now that you're running your image, start playing with oscar-packager. > oscar-packager --all oda > > => Result will end into /tftpboot/oscar/<oscar-distro-tag>/ > > To build all packages: > oscar-packager --all unstable > you can add --verbose or even --debug for more output. > > Now you can stop/quit your docker image by exitting the bash (exit / ^D) > 4/ Once done playing, you can choose to keep your track of the state of the > docker image you've just quit. > To do so: > sudo docker ps -a > Note the container id that you want to keep track (the most recent) > sudo docker commit <contained_id> john/oscar_co7:1.1 > > Note that the version has increased. This is to avoid overriding the 1.0 > version. Though, you could have used 1.0 to store the current image status if > you don't mind keeping the 1.0 version. > > More infos on how to use docker here: > https://training.docker.com/self-paced-training > > cheers, > > Olivier. > > -- > Olivier LAHAYE > > ________________________________________ > De : Steven Evans [steven.ev...@boolengine.com] > Envoyé : lundi 1 août 2016 19:20 > À : oscar-users@lists.sourceforge.net > Objet : [Oscar-users] Building a Beowulf Cluster with Obsolete Hardware > > Oscar Users, > I'm interested in building a Beowulf cluster by using a bunch of > old IBM desktops that I own. The machines are far too old to meet the > minimum system requirements of the latest version of Oscar, so I'm > trying to use an older version that fits the generation of my computers > (Oscar 4.2). Is this a feasible endeavor, or is Oscar not suitable for > something like this? > As you know, using an older version of Oscar also means using an > old/obsolete operating system. I suspect that support for both will be > nonexistent, so I'm interested in getting the advice of those who have > built clusters. Is this something that lots of people do (build a > cluster with obsolete software), or is it rare? > These computers have Pentium II processors with clock speeds of > around 350 MHz. The maximum RAM for each machine is 768 MB. Most of my > hard drives are 4.2 GB IDE drives, although I have a few 6 GB drives and > one that's 40 GB. > I've never built a cluster, but have noticed that most books on the > subject are at least 10 years old. They also rarely give enough detail > to actually build a cluster. That's why I've started looking at Oscar. > I'm mostly trying to find out whether or not this is practical > before potentially pursuing a fool's errand. Any advice from > experienced cluster builders is greatly appreciated. > > Thanks for your attention, > > Steven Evans > > -- > http://www.BoolEngine.com > A Tool for the Technical Community > > ------------------------------------------------------------------------------ > _______________________________________________ > Oscar-users mailing list > Oscar-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/oscar-users > > ------------------------------------------------------------------------------ > _______________________________________________ > Oscar-users mailing list > Oscar-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/oscar-users > -- http://www.BoolEngine.com A Tool for the Technical Community ------------------------------------------------------------------------------ _______________________________________________ Oscar-users mailing list Oscar-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oscar-users
