Re: [OMPI users] mpirun unsuccessful when run across multiple nodes
Am 18.04.2011 um 15:40 schrieb chenjie gu: > I am a green hand on Openmpi, I have the following Openmpi structure, however > it has problem when running across multiple nodes. > I am trying to build a Bewolf Cluster between 6 nodes of our serve (HP > Proliant G460 G7), I have installed the Openmpi on one node (assuming at > /mirror), > ./configure --prefix=/mirror/openmpi CC=icc CXX=icpc F77=ifort FC=ifort > make all install > > using NFS, the directory of /mirror was successfully exported to the rest of > 5 nodes. Now as I test the Openmpi, it runs very well on a single node, > however it hangs across multiple nodes. > > Now one possible reason as I know is that Openmpi uses TCP to exchange data > between different nodes, so I am worried about > whether there are firewalls between each nodes, which can be factory > integrated at somewhere(switch/NIC). Could anyone give me some > information on this point? It's not only about MPI communcation. Before you need some means to allow the startup of the local orte daemons on each machine by passphraseless ssh-keys or better hostbased authentication http://arc.liv.ac.uk/SGE/howto/hostbased-ssh.html , or enable `rsh` on the machines and tell Open MPI to use it. Is: mpiexec hostname giving you a list of the involved machines? -- Reuti > Thanks a lot, > Regards, > ArchyGU > Nanyang Technological University > ___ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
[OMPI users] mpirun unsuccessful when run across multiple nodes
Dear all, I am a green hand on Openmpi, I have the following Openmpi structure, however it has problem when running across multiple nodes. I am trying to build a Bewolf Cluster between 6 nodes of our serve (HP Proliant G460 G7), I have installed the Openmpi on one node (assuming at /mirror), ./configure --prefix=/mirror/openmpi CC=icc CXX=icpc F77=ifort FC=ifort make all install using NFS, the directory of /mirror was successfully exported to the rest of 5 nodes. Now as I test the Openmpi, it runs very well on a single node, however it hangs across multiple nodes. Now one possible reason as I know is that Openmpi uses TCP to exchange data between different nodes, so I am worried about whether there are firewalls between each nodes, which can be factory integrated at somewhere(switch/NIC). Could anyone give me some information on this point? Thanks a lot, Regards, ArchyGU Nanyang Technological University
Re: [OMPI users] Try to submit OMPI job to SGE gives ERRORS (orte_plm_base_select failed & orte_ess_set_name failed) (Reuti)
Am 17.04.2011 um 01:21 schrieb Derrick LIN: > > > Well, does `mpiexec` point to the correct one? > > I don't really get this. I only installed one and only one OpenMPI on the > node. There shouldn't have another 'mpiexec' on the system. It could be one from any other MPI implementation by accident. > It's worthy to mention that every node is deployed from a master image. So > everything is exactly the same except IP and DNS name. > > I thought you compiled it on your own with --with-sge. What about: > > pwbcad@sgeqexec01:~$ ompi_info | grep grid > MCA ras: gridengine (MCA v2.0, API v2.0, Component v1.4.1) Fine. > Is there any location I can find a more meaningful OpenMPI log? Can you run a simple `mpiexec hostname` in the script? > I will try to install openmpi 1.4.3 and see if that works. > > I want to confirm one more thing: does SGE's master host need to have OpenMPI > installed? Is it relevant? In principle: no. But often it's installed too, as you will compile on either the master machine or a dedicated login server. -- Reuti > Many thanks Reuti > > Derrick > ___ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
Re: [OMPI users] Ofed v1.5.3?
Yes. On Apr 16, 2011, at 1:34 PM, Michael Di Domenico wrote: > Does OpenMPI v1.5.3 support Ofed v.1.5.3.1 ? > ___ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
