On 19/12/2019 14.33, Graham Inggs wrote: > On Thu, 19 Dec 2019 at 15:17, Andreas Beckmann <a...@debian.org> wrote: >> I'm suspecting openmpi (that gets loaded by the io import) somehow messes up >> some state, >> causing the lt_*() failures. > > I wonder if this is related to #946986 ?
Downgrading to python3-h5py from buster makes the problem go away. But it also removes mpi from the loop. Selecting previously unselected package libhdf5-103:amd64. (Reading database ... 32183 files and directories currently installed.) Preparing to unpack .../libhdf5-103_1.10.4+repack-10_amd64.deb ... Unpacking libhdf5-103:amd64 (1.10.4+repack-10) ... (Reading database ... 32197 files and directories currently installed.) Removing python3-mpi4py (3.0.3-1) ... Removing mpi-default-bin (1.13) ... Removing openmpi-bin (4.0.2-4+b1) ... Removing libhdf5-openmpi-103:amd64 (1.10.4+repack-10) ... Removing libopenmpi3:amd64 (4.0.2-4+b1) ... Removing libpmix2:amd64 (3.1.4-1+b1) ... Removing libevent-2.1-7:amd64 (2.1.11-stable-1) ... Removing libevent-pthreads-2.1-7:amd64 (2.1.11-stable-1) ... Removing libevent-core-2.1-7:amd64 (2.1.11-stable-1) ... Removing libfabric1 (1.6.2-3+b1) ... Removing librdmacm1:amd64 (26.0-2) ... Removing libibverbs1:amd64 (26.0-2) ... Removing libnl-route-3-200:amd64 (3.4.0-1+b1) ... Removing libnl-3-200:amd64 (3.4.0-1+b1) ... Removing libpsm2-2 (11.2.86-1) ... Removing libnuma1:amd64 (2.0.12-1+b1) ... Removing libpsm-infinipath1 (3.3+20.604758e7-6+b1) ... update-alternatives: warning: alternative /usr/lib/libpsm1/libpsm_infinipath.so.1.16 (part of link group libpsm_infinipath.so.1) doesn't exist; removing from list of alternatives update-alternatives: warning: /etc/alternatives/libpsm_infinipath.so.1 is dangling; it will be updated with best choice Removing openmpi-common (4.0.2-4) ... Setting up libhdf5-103:amd64 (1.10.4+repack-10) ... Setting up python3-h5py (2.8.0-3) ... Processing triggers for libc-bin (2.29-6) ... I can reproduce the original problem if I take some OpenCL hello world program (e.g. https://gist.github.com/ddemidov/2925717 with s/GPU/CPU/) and insert MPI_Init(&argc, &argv; - no python needed Andreas