Hi, Does anybody face problems running Openmpi on two hosts with different networks (gateway to reach the other) ? Let say compil02 ip adress is 172.3.9.10 and r009n001 is 10.160.4.1
There is no problem with MPI_init free executables (for example hostname) compil02% /tmp/HALMPI/openmpi-1.2.2/bin/mpirun --prefix /tmp/HALMPI/openmpi-1.2.2 -np 1 -host compil02 hostname : -np 1 -host r009n001 hostname r009n001 compil02 But as soon as I try a simple hello world , it 's crashing with the following error message. Please note that when I try to run hello between r009n001 (10.160.4.1) and r009n002 (10.160.4.2), it works fine Thanks in advance for your help. Regards Geoffroy PS: same error with openmpi v1.2.5 compil02% /tmp/HALMPI/openmpi-1.2.2/bin/mpirun --prefix /tmp/HALMPI/openmpi-1.2.2 -np 1 -host compil02 /tmp/hello : -np 1 -host r009n001 /tmp/hello -------------------------------------------------------------------------- Process 0.1.0 is unable to reach 0.1.1 for MPI communication. If you specified the use of a BTL component, you may have forgotten a component (such as "self") in the list of usable components. -------------------------------------------------------------------------- -------------------------------------------------------------------------- It looks like MPI_INIT failed for some reason; your parallel process is likely to abort. There are many reasons that a parallel process can fail during MPI_INIT; some of which are due to configuration or environment problems. This failure appears to be an internal failure; here's some additional information (which may only be relevant to an Open MPI developer): PML add procs failed --> Returned "Unreachable" (-12) instead of "Success" (0) -------------------------------------------------------------------------- -------------------------------------------------------------------------- Process 0.1.1 is unable to reach 0.1.0 for MPI communication. If you specified the use of a BTL component, you may have forgotten a component (such as "self") in the list of usable components. -------------------------------------------------------------------------- -------------------------------------------------------------------------- It looks like MPI_INIT failed for some reason; your parallel process is likely to abort. There are many reasons that a parallel process can fail during MPI_INIT; some of which are due to configuration or environment problems. This failure appears to be an internal failure; here's some additional information (which may only be relevant to an Open MPI developer): PML add procs failed --> Returned "Unreachable" (-12) instead of "Success" (0) -------------------------------------------------------------------------- *** An error occurred in MPI_Init *** before MPI was initialized *** MPI_ERRORS_ARE_FATAL (goodbye) *** An error occurred in MPI_Init *** before MPI was initialized *** MPI_ERRORS_ARE_FATAL (goodbye)
