Hi all, I’m currently trying to use MPI within a Python extension (written in C++). I was able to compile the extension and import it correctly, but as soon as I run the function, which contains the MPI code, I get the following error:
``` [aia256:15841] mca: base: component_find: unable to open /pds/opt/openmpi-1.8.7/lib64/openmpi/mca_shmem_posix: /pds/opt/openmpi-1.8.7/lib64/openmpi/mca_shmem_posix.so: undefined symbol: opal_shmem_base_framework (ignored) [aia256:15841] mca: base: component_find: unable to open /pds/opt/openmpi-1.8.7/lib64/openmpi/mca_shmem_mmap: /pds/opt/openmpi-1.8.7/lib64/openmpi/mca_shmem_mmap.so: undefined symbol: opal_show_help (ignored) [aia256:15841] mca: base: component_find: unable to open /pds/opt/openmpi-1.8.7/lib64/openmpi/mca_shmem_sysv: /pds/opt/openmpi-1.8.7/lib64/openmpi/mca_shmem_sysv.so: undefined symbol: opal_show_help (ignored) ... ``` (for the full message please have a look at [1]) I put together a minimal example to reproduce this problem, which can be found at [1]. Essentially, it is an extension that consist of only one function. The function basically just runs MPI_Init and MPI_Finalize. Maybe someone has some ideas what I could try to do. Thanks in advance! Best, Joel [1] https://github.com/jhedev/mpi_python
