Thanks everyone(esp Gus and Jeff) for the support and guidance. We are almost at the verge of completing our project which could have not been possible without all u guys.
I would like to know one more thing, what are real life applications that i can use the cluster for (except mathematical computation)? Can i use if for my web server, if yes then how? On Fri, Apr 24, 2009 at 12:01 AM, Jeff Squyres <jsquy...@cisco.com> wrote: > Excellent answer. One addendum -- we had a really nice FAQ entry about > this kind of stuff on the LAM/MPI web site, which I was horrified to see > that we had not copied to the Open MPI site. So I copied it over this > morning. :-) > > Have a look at these 3 FAQ (brand new) entries: > > > http://www.open-mpi.org/faq/?category=building#overwrite-pre-installed-ompi > http://www.open-mpi.org/faq/?category=building#where-to-install > > http://www.open-mpi.org/faq/?category=running#do-i-need-a-common-filesystem > > Hope that helps. > > > > > On Apr 23, 2009, at 10:34 AM, Gus Correa wrote: > > Hi Ankush >> >> Jeff already sent clarifications about image processing, >> and the portable API nature of OpenMPI (and other MPI implementations). >> >> As for "mpicc: command not found" this is again a problem with your >> PATH. >> Remember the "locate" command? :) >> Find where mpicc is installed, and put that directory on your PATH. >> >> In any case, I would suggest that you choose a central NFS mounted >> file system on your cluster master node, and install OpenMPI there, >> configuring and building it from source (not from yum). >> If this directory is mounted on all nodes, the same OpenMPI will be >> available on all nodes. >> This will give you a single standard version of OpenMPI across the board. >> >> Clustering can become a very confusing and tricky business if you >> have heterogeneous nodes, with different OS/Linux versions, >> different MPI versions etc, software installed in different locations >> on each node, etc, regardless of whether you use mpiselector or >> you set the PATH variable on each node, or you use environment modules >> package, or any other technique to setup your environment. >> Installing less software, rather than more software, >> and doing so in a standardized homogeneous way across all cluster nodes, >> will give you a cleaner environment, which is easier to understand, >> control, upgrade, and update. >> >> A relatively simple way to install a homogeneous cluster is >> to use the Rocks Clusters "rolls" suite, >> which is free and based on CentOS. >> It will probably give you some extra work in the beginning, >> but may be worthwhile in the long run. >> See this: >> http://www.rocksclusters.org/wordpress/ >> >> >> My two cents. >> >> Gus Correa >> --------------------------------------------------------------------- >> Gustavo Correa >> Lamont-Doherty Earth Observatory - Columbia University >> Palisades, NY, 10964-8000 - USA >> --------------------------------------------------------------------- >> >> Ankush Kaul wrote: >> > @Gus, Eugene >> > I read all you mails and even followed the same procedure, it was blas >> > that was giving the problem. >> > >> > Thanks >> > >> > I am again stuck on a problem, i connected a new node to my cluster and >> > installed CentOS 5.2 on it. after that i use yum to install >> > openmpi,openmpi-libs and openmpi-devel sucessfully. >> > >> > But still when i run mpicc command it gives me error : >> > /bash: mpicc: command not found/ >> > >> > i found out there is a command *mpi-selector* but dont know hoe to use >> it. >> > Is this a new version of openmpi? how do i configure it? >> > >> > >> > ------------------------------------------------------------------------ >> > >> > _______________________________________________ >> > users mailing list >> > us...@open-mpi.org >> > http://www.open-mpi.org/mailman/listinfo.cgi/users >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users >> > > > -- > Jeff Squyres > Cisco Systems > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
