More than likely the problem is the difference in hwloc versions - sounds like the topology to/from xml is different between the two versions, and the older one doesn’t understand the new one.
> On Jul 21, 2018, at 12:04 PM, Brian Smith <bsm...@systemfabricworks.com> > wrote: > > Greetings, > > I'm having trouble getting openmpi 2.1.2 to work when launching a > process from debian 8 on a remote debian 9 host. To keep things simple > in this example, I'm just launching date on the remote host. > > deb8host$ mpirun -H deb9host date > [deb8host:01552] [[32763,0],0] ORTE_ERROR_LOG: Error in file > base/plm_base_launch_support.c at line 954 > > It works fine when executed from debian 9: > deb9host$ mpirun -H deb8host date > Sat Jul 21 13:40:43 CDT 2018 > > Also works when executed from debian 8 against debian 8: > deb8host:~$ mpirun -H deb8host2 date > Sat Jul 21 13:55:57 CDT 2018 > > The failure results from an error code returned by: > opal_dss.unpack(buffer, &topo, &idx, OPAL_HWLOC_TOPO) > > openmpi was built with the same configure flags on both hosts. > > --prefix=$(PREFIX) \ > --with-verbs \ > --with-libfabric \ > --disable-silent-rules \ > --with-hwloc=/usr \ > --with-libltdl=/usr \ > --with-devel-headers \ > --with-slurm \ > --with-sge \ > --without-tm \ > --disable-heterogeneous \ > --with-contrib-vt-flags=--disable-iotrace \ > --sysconfdir=$(PREFIX)/etc \ > --libdir=$(PREFIX)/lib \ > --includedir=$(PREFIX)/include > > > deb9host libhwloc and libhwloc-plugins is 1.11.5-1 > deb8host libhwloc and libhwloc-plugins is 1.10.0-3 > > I've been trying to debug this for the past few days and would > appreciate any help on determining why this failure is occurring > and/or resolving the problem. > > -- > Brian T. Smith > System Fabric Works > Senior Technical Staff > bsm...@systemfabricworks.com > GPG Key: B3C2C7B73BA3CD7F > _______________________________________________ > 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
