Bug#1120695: openmpi-bin: Unable to find reachable pairing between local and remote interfaces

[J.L.G. Pallero]

Package: openmpi-bin
Version: 5.0.9-1
Severity: important
X-Debbugs-Cc: jgpallero at gmail.com

Dear Maintainer,

Trying to execute a MPI program with mpirun that works a few days ago, it still works, but I obtain some strange messages I can't interpret. The messages are:

[geo-w540][[64946,1],2][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] [geo-w540][[64946,1],1][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] Unable to find reachable pairing between local and remote interfaces
[geo-w540][[64946,1],3][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] Unable to find reachable pairing between local and remote interfaces
[geo-w540][[64946,1],0][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] Unable to find reachable pairing between local and remote interfaces
[geo-w540][[64946,1],1][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] Unable to find reachable pairing between local and remote interfaces
[geo-w540][[64946,1],3][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] Unable to find reachable pairing between local and remote interfaces
[geo-w540][[64946,1],0][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] Unable to find reachable pairing between local and remote interfaces
Unable to find reachable pairing between local and remote interfaces
[geo-w540][[64946,1],3][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] Unable to find reachable pairing between local and remote interfaces
[geo-w540][[64946,1],2][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] Unable to find reachable pairing between local and remote interfaces
[geo-w540][[64946,1],1][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] Unable to find reachable pairing between local and remote interfaces
[geo-w540][[64946,1],2][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] Unable to find reachable pairing between local and remote interfaces
[geo-w540][[64946,1],0][../../../../../../opal/mca/btl/tcp/btl_tcp_proc.c:266:mca_btl_tcp_proc_create_interface_graph] Unable to find reachable pairing between local and remote interfaces


-- System Information:
Debian Release: forky/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.17.7+deb14+1-amd64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_CPU_OUT_OF_SPEC
Locale: LANG=es_ES.UTF-8, LC_CTYPE=es_ES.UTF-8 (charmap=UTF-8), LANGUAGE=es
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages openmpi-bin depends on:
ii  libc6                        2.41-12
ii  libevent-core-2.1-7t64       2.1.12-stable-10+b1
ii  libhwloc15                   2.12.2-1
ii  libopenmpi40                 5.0.9-1
ii  libpmix2t64                  6.0.0+really5.0.9-2
ii  openmpi-common               5.0.9-1
ii  openssh-client [ssh-client]  1:10.2p1-2

openmpi-bin recommends no packages.

Versions of packages openmpi-bin suggests:
ii  flang-19 [fortran-compiler]  1:19.1.7-10.1
ii  gfortran [fortran-compiler]  4:15.2.0-4

-- no debconf information