On 11/01/2011 10:11 AM, Abu Attar Musharih wrote: > Dear List, > > I have a cluster of several PCs, each is running Fedora, either 14 or 15. > I want to make this PCs grid enabled, so I installed globus ( > http://www.globus.org/ ) and made a server with a global IP and with > a subdomain. My main objective is to be able to run parallel > programming (mpi), harnessing the idle CPUs of onlines nodes. Hi Abu Attar Musharih, First of all, I don't think that a grid is the right instrument for running processes using a MPI model (this is more thread based, or, if using a cluster, based on a RPC model for example). Or look at *www.mosix.org*. For cluster software, you could use Scientific linux or Rocks Clusters Linux. I made good experience in managing a cluster with Rocks Clusters Linux, based on CentOS (www.rocksclusters.org). Additionally, in my opinion, the Fedora user list is not really a good contact for your grid question. I'm sure there is a appropriate Q&A page at globus.org (the messages listed below are not system specific enough) - it seems to be a middleware problem. Kind regards Joachim Backes > > The stage at a moment, I have successfully set up simple-CA and the > GSI of the server. > > Globus commands works fine, for example: > > ++++ > $ globus-hostname-lookup fedora.org > Resolving address (fedora.org)... > ------------------------------- > Numeric address: 67.40.49.xxx > Expected DN suffix: /CN=host/hoxx.trippy.org > ++++ > > $ grid-proxy-init > Your identity: /O=Grid/OU=GlobusTest/OU=simpleCA-localhost.localdomain/OU=localdomain/CN= > Abu Attar > Enter GRID pass phrase for this identity: > Creating proxy ............................................ Done > Your proxy is valid until: Wed Nov 2 05:01:04 2011 > > ++++++ > > I tried but failed to copy a file from one node to a server. > > $ globus-url-copy file:///home/username/Grid/Codes/cpi.c gsiftp://domainname/ > > The message is as follows, > > error: globus_xio: Unable to connect to domainname:2811 > globus_xio: System error in connect: No route to host > globus_xio: A system call failed: No route to host > > It seems something to do with the port 2811. Checking /etc/services > of the server gave the port number and the protocol > ++++ > root$ less /etc/services | grep gsi > > gsigatekeeper 2119/udp # GSIGATEKEEPER > gsiftp 2811/tcp # GSI FTP > gsiftp 2811/udp # GSI FTP > gsidcap 22128/tcp # GSI dCache Access Protocol > ++++ > > As I do not have any experience, I have no idea how to fix it. > I mainly rely on internet searching, but still can not find the answer. > > I expect from this list some suggestions or any comment. > Thank you very much in advance. > > with best, > AA -- Joachim Backes <joachim.backes@xxxxxxxxxxxxxx> http://www.rhrk.uni-kl.de/~backes
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