Can you please configure OMPI with --enable-debug, and then execute mpirun -mca plm_base_verbose 10 -host ib03 hostname
This will provide debug information about the problem. Thanks Ralph On Tue, Mar 25, 2014 at 9:51 PM, Wang,Yanfei(SYS) <wangyanfe...@baidu.com>wrote: > Hi, > > Thanks jeff, and I have not figured out what happened yet with this FAQ. > > 1. Ssh remote login OK: > [root@bb-nsi-ib04 examples]# ssh ib03 hostname > bb-nsi-ib03.bb01.*.com > [root@bb-nsi-ib04 examples]# > 2. following command return immediately without nothing returned > [root@bb-nsi-ib04 examples]# mpirun -host ib03 hostname > [root@bb-nsi-ib04 examples]# > 3. following command excute successfully. > [root@bb-nsi-ib04 examples]# ssh ib03 mpirun > -------------------------------------------------------------------------- > mpirun could not find anything to do. > > It is possible that you forgot to specify how many processes to run > via the "-np" argument. > -------------------------------------------------------------------------- > [root@bb-nsi-ib04 examples]# > > So, does it seem like that the non-interactive shell profile is not > correctly configured? Step 3 can execute succefully... > > Hope any response! > > BR > > Yanfei Wang > > -----邮件原件----- > 发件人: devel [mailto:devel-boun...@open-mpi.org] 代表 Jeff Squyres (jsquyres) > 发送时间: 2014年3月25日 22:09 > 收件人: Open MPI Developers > 主题: Re: [OMPI devel] example/Hello_c.c : mpirun run failed on two physical > nodes. > > Try this FAQ entry: > > http://www.open-mpi.org/faq/?category=running#diagnose-multi-host-problems > > On Mar 25, 2014, at 6:54 AM, "Wang,Yanfei(SYS)" <wangyanfe...@baidu.com> > wrote: > > > Hi, > > > > I am a fresh learner of OpenMPI programmer, and have some troubles on > building mpi programming, hope some helps.. > > > > The example/helloc_c can works successfully with 2 process on local > machine, however, do not work on two separate physical node. > > > > Physical two nodes: > > Eg: > > [root@bb-nsi-ib04 examples]# mpirun -hostfile hosts -np 2 hello_c The > > command just return instantly without nothing printed. > > Local machine: > > [root@bb-nsi-ib04 examples]# mpirun -np 2 hello_c Hello, world, I am 0 > > of 2, (Open MPI v1.7.5, package: Open MPI root@bb-nsi-ib04.bb01.*.com > > Distribution, ident: 1.7.5, Mar 20, 2014, 108) Hello, world, I am 1 of > > 2, (Open MPI v1.7.5, package: Open MPI root@bb-nsi-ib04.bb01.*.com > > Distribution, ident: 1.7.5, Mar 20, 2014, 108) > > [root@bb-nsi-ib04 examples]# > > -----peer machine is ok-------- > > [root@bb-nsi-ib03 examples]# mpirun -np 2 hello_c Hello, world, I am 0 > > of 2, (Open MPI v1.7.5, package: Open MPI root@bb-nsi-ib03.bb01.*.com > > Distribution, ident: 1.7.5, Mar 20, 2014, 108) Hello, world, I am 1 of > > 2, (Open MPI v1.7.5, package: Open MPI root@bb-nsi-ib03.bb01.*.com > > Distribution, ident: 1.7.5, Mar 20, 2014, 108) > > [root@bb-nsi-ib03 examples]# > > the command run successfully, and print two message!! > > > > Configuration details: > > OpenMPI version: 1.7.5 > > Hostfile: > > [root@bb-nsi-ib04 examples]# cat hosts > > ib03 slots=1 > > ib04 slots=1 > > [root@bb-nsi-ib04 examples]# > > /etc/hosts: > > [root@bb-nsi-ib04 examples]# cat /etc/hosts > > 192.168.71.3 ib03 > > 192.168.71.4 ib04 > > SSH: > > Public rsa key is redistributed two machine, ib03 and ib04, and to do > ssh login in without password is ok, I am sure. > > > > I am confused about this trouble, and anyone can help us? It have > nothing log and error tip, could anyone tell me how to do diagnose it. > > > > BR > > > > Yanfei Wang > > > > > > _______________________________________________ > > devel mailing list > > de...@open-mpi.org > > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > > Link to this post: > > http://www.open-mpi.org/community/lists/devel/2014/03/14385.php > > > -- > Jeff Squyres > jsquy...@cisco.com > For corporate legal information go to: > http://www.cisco.com/web/about/doing_business/legal/cri/ > > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2014/03/14386.php > _______________________________________________ > devel mailing list > de...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/devel > Link to this post: > http://www.open-mpi.org/community/lists/devel/2014/03/14396.php
