Thanks, George. My sysadmin now says he is pretty sure it is the firewall, but that "isn't going to change" so we need to find a solution.
On 9 February 2018 at 16:58, George Bosilca <bosi...@icl.utk.edu> wrote: > What are the settings of the firewall on your 2 nodes ? > > George. > > > > On Fri, Feb 9, 2018 at 3:08 PM, William Mitchell <wfma...@gmail.com> > wrote: > >> When I try to run an MPI program on a network with a shared file system >> and connected by ethernet, I get the error message "tcp_peer_send_blocking: >> send() to socket 9 failed: Broken pipe (32)" followed by some suggestions >> of what could cause it, none of which are my problem. I have searched the >> FAQ, mailing list archives, and googled the error message, with only a few >> hits touching on it, none of which solved the problem. >> >> This is on a Linux CentOS 7 system with Open MPI 1.10.6 and Intel Fortran >> (more detailed system information below). >> >> Here are details on how I encounter the problem: >> >> me@host1> cat hellompi.f90 >> program hello >> include 'mpif.h' >> integer rank, size, ierror, nl >> character(len=MPI_MAX_PROCESSOR_NAME) :: hostname >> >> call MPI_INIT(ierror) >> call MPI_COMM_SIZE(MPI_COMM_WORLD, size, ierror) >> call MPI_COMM_RANK(MPI_COMM_WORLD, rank, ierror) >> call MPI_GET_PROCESSOR_NAME(hostname, nl, ierror) >> print*, 'node', rank, ' of', size, ' on ', hostname(1:nl), ': Hello >> world' >> call MPI_FINALIZE(ierror) >> end >> >> me@host1> mpifort --showme >> ifort -I/usr/include/openmpi-x86_64 -pthread -m64 >> -I/usr/lib64/openmpi/lib -Wl,-rpath -Wl,/usr/lib64/openmpi/lib >> -Wl,--enable-new-dtags -L/usr/lib64/openmpi/lib -lmpi_usempi -lmpi_mpifh >> -lmpi >> >> me@host1> ifort --version >> ifort (IFORT) 18.0.0 20170811 >> Copyright (C) 1985-2017 Intel Corporation. All rights reserved. >> >> me@host1> mpifort -o hellompi hellompi.f90 >> >> [Note: it runs on 1 machine, but not on two] >> >> me@host1> mpirun -np 2 hellompi >> node 0 of 2 on host1.domain: Hello world >> node 1 of 2 on host1.domain: Hello world >> >> me@host1> cat hosts >> host2.domain >> host1.domain >> >> me@host1> mpirun -np 2 --hostfile hosts hellompi >> [host2.domain:250313] [[46562,0],1] tcp_peer_send_blocking: send() to >> socket 9 failed: Broken pipe (32) >> ------------------------------------------------------------ >> -------------- >> ORTE was unable to reliably start one or more daemons. >> This usually is caused by: >> [suggested causes deleted] >> >> Here is system information: >> >> me@host2> cat /etc/redhat-release >> CentOS Linux release 7.4.1708 (Core) >> >> me@host1> uname -a >> Linux host1.domain 3.10.0-693.17.1.el7.x86_64 #1 SMP Thu Jan 25 20:13:58 >> UTC 2018 x86_64 x86_64 x86_64 GNU/Linux >> >> me@host1> rpm -qa | grep openmpi >> mpitests-openmpi-4.1-1.el7.x86_64 >> openmpi-1.10.6-2.el7.x86_64 >> openmpi-devel-1.10.6-2.el7.x86_64 >> >> me@host1> ompi_info --all >> [Results of this command for each host are in the attached files.] >> >> me@host1> ompi_info -v ompi full --parsable >> ompi_info: Error: unknown option "-v" >> [Is the request to run that command given on the Open MPI "Getting Help" >> web page an error?] >> >> me@host1> printenv | grep OMPI >> MPI_COMPILER=openmpi-x86_64 >> OMPI_F77=ifort >> OMPI_FC=ifort >> OMPI_MCA_mpi_yield_when_idle=1 >> OMPI_MCA_btl=tcp,self >> >> I am using ssh-agent, and I can ssh between the two hosts. In fact, from >> host1 I can use ssh to request that host2 ssh back to host1: >> >> me@host1> ssh -A host2 "ssh host1 hostname" >> host1.domain >> >> Any suggestions on how to solve this problem are appreciated. >> >> Bill >> >> _______________________________________________ >> users mailing list >> users@lists.open-mpi.org >> https://lists.open-mpi.org/mailman/listinfo/users >> > > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users >
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