oshmem_info link failure for 4.0.x and 4.1.x

[hoba87]

What version of Open MPI are you using?

4.0.5

Describe how Open MPI was installed

I use the source tarball and configure with:
./configure --prefix=/opt/openmpi/openmpi-4.0.5/ --with-verbs --with-pmix=/opt/pmix/pmix-3.1.5 --with-ompi-pmix-rte --with-cuda=/opt/nvidia/cuda-10.1 2>&1 | tee config.log

Please describe the system on which you are running

• Operating system/version: CentOS 8
• Computer hardware: Intel Xeon E5 v4
• Network type: Ethernet, Infiniband

Details of the problem

I get undefined reference for oshmem_info:

  CC       oshmem_info.o
  CC       param.o
  GENERATE oshmem_info.1
  CCLD     oshmem_info
../../../oshmem/.libs/liboshmem.so: undefined reference to `orte_process_info'
../../../oshmem/.libs/liboshmem.so: undefined reference to `orte_errmgr'
../../../oshmem/.libs/liboshmem.so: undefined reference to `orte_namelist_t_class'
../../../oshmem/.libs/liboshmem.so: undefined reference to `orte_initialized'
../../../oshmem/.libs/liboshmem.so: undefined reference to `orte_util_print_name_args'
../../../oshmem/.libs/liboshmem.so: undefined reference to `ORTE_ERROR_LOG'
../../../oshmem/.libs/liboshmem.so: undefined reference to `orte_show_help'
../../../oshmem/.libs/liboshmem.so: undefined reference to `orte_show_help_is_available'

Background information

During configure, I get several warnings, but no errors:

configure: WARNING:  -fno-strict-aliasing has been added to CFLAGS
configure: WARNING:  -finline-functions has been added to CXXFLAGS
configure: WARNING:  -finline-functions has been added to CXXFLAGS
configure: WARNING: *** Did not find corresponding C type
configure: WARNING: Compiler INTEGER*16 and  mismatch; MPI datatype unsupported
configure: WARNING: external hwloc version is less than internal version 2.0
configure: WARNING: using internal hwloc
configure: WARNING: "-fvisibility=hidden" has been added to the hwloc CFLAGS
configure: WARNING: valgrind.h not found
configure: WARNING: Cannot compile this component
configure: WARNING:  -fno-strict-aliasing has been added to CFLAGS
configure: WARNING: Unknown architecture ... proceeding anyway
configure: WARNING: File locks may not work with NFS.  See the Installation and
configure:26308: WARNING:  -finline-functions has been added to CXXFLAGS
configure:27984: WARNING:  -finline-functions has been added to CXXFLAGS
configure:55240: WARNING: *** Did not find corresponding C type
configure:55694: WARNING: Compiler INTEGER*16 and  mismatch; MPI datatype unsupported
configure:81101: WARNING: external hwloc version is less than internal version 2.0
configure:81103: WARNING: using internal hwloc
configure:86106: WARNING: "-fvisibility=hidden" has been added to the hwloc CFLAGS
configure:149259: WARNING: valgrind.h not found
configure:149261: WARNING: Cannot compile this component

[hoba87]

I have realized, that it works without option --with-ompi-pmix-rte and I should use --with-ucx instead of --with-verbs. However I leave the decision to close the issue to the developers.

[hppritcha]

This is an issue in the oshmem component of Open MPI. oshmem should not have a direct dependency on orte.

[hppritcha]

@hoopoepg Sergey could you check on this?

[jsquyres]

FYI: @open-mpi/ucx this is apparently still an issue.

[hoopoepg]

yes, working over this issue

[hoopoepg]

hi @hoba87

thank you for bug report!!!
I tried to reproduce this issue using default CentOS 8 environment but without success.

as I can see you used non-default PMIX library, what is configure string for PMIX?
what else non-default dependencies were used?
could you also check is issue is actual for later OMPI? 4.1 and 5.0

thank you again