homebrew-installed opencoarrays produces seg faults with simple coarry accesses

[rouson]

Avg response time

Defect/Bug Report

• OpenCoarrays Version: 2.3.1
• Fortran Compiler: gfortran 8.2.0
• C compiler used for building lib: gcc 8.2.0
• Installation method: homebrew
• Output of uname -a: Darwin localhost 18.2.0 Darwin Kernel Version 18.2.0: Mon Nov 12 20:24:46 PST 2018; root:xnu-4903.231.4~2/RELEASE_X86_64 x86_64
• MPI library being used: OpenMPI
• Machine architecture and number of physical cores: 4-core Intel Core i7
• Version of CMake: 3.13.2

Observed Behavior

$ cat main.f90 
  type Array_Type
      real, allocatable :: values(:)
  end type
  type(Array_Type) array[*]

  allocate(array%values(2),source=0.)
  array%values = this_image()
  sync all
  print *, array%values
end
$ caf main.f90 
$ cafrun -n 4 ./a.out
   4.00000000       4.00000000    
   1.00000000       1.00000000    
   2.00000000       2.00000000    
   3.00000000       3.00000000    
[localhost:73816] *** An error occurred in MPI_Win_detach
[localhost:73816] *** reported by process [4040687617,1]
[localhost:73816] *** on win rdma window 5
[localhost:73816] *** MPI_ERR_OTHER: known error not in list
[localhost:73816] *** MPI_ERRORS_ARE_FATAL (processes in this win will now abort,
[localhost:73816] ***    and potentially your MPI job)
[localhost:73814] 1 more process has sent help message help-mpi-errors.txt / mpi_errors_are_fatal
[localhost:73814] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
Error: Command:
   `/usr/local/bin/mpiexec -n 4 ./a.out`
failed to run.
$ caf --version

OpenCoarrays Coarray Fortran Compiler Wrapper (caf version 2.3.1)
...

The error occurs intermittently (non-deterministically).

Installing using the OpenCoarrays installer eliminates the problem -- presumably because the installer installs MPICH instead of OpenMPI.

[zbeekman]

I'm seeing the following failures with OpenMPI and OC 2.5.0:

96% tests passed, 3 tests failed out of 78

Total Test time (real) =  44.76 sec

The following tests FAILED:
         14 - alloc_comp_get_convert_nums (Failed)
         23 - alloc_comp_send_convert_nums (Failed)
         69 - issue-515-mimic-mpi-gatherv (Failed)
Errors while running CTest

Hopefully it's the same problem we're seeing here... we'll see what happens with the "bottling" of the latest 2.5.0 release of OpenCoarrays.

[zbeekman]

@rouson I can't reproduce this with a fresh install of OpenCoarrays from Homebrew. I'm going to close this. If you have issues that are persisting, you can re-open or we can investigate together.