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To quote the build error:

"OpenMPI is incompatible with gfortran's coarray implementation from gfortran version 15 on. Please use a different MPI implementation!"

Not sure how to move forward with this package because it uses OpenMPI. The MPICH version (git) of this package is available.

This package now uses Open MPI instead of MPICH to avoid build issues. Should the MPICH build issues be resolved, I might make a separate opencoarrays-mpich package which uses MPICH.

To use OpenCoarrays :

$ caf <filename.f90>
$ cafrun -n <num_images> ./a.out

To quote the build error:

"OpenMPI is incompatible with gfortran's coarray implementation from gfortran version 15 on. Please use a different MPI implementation!"

Not sure how to move forward with this package because it uses OpenMPI. The MPICH version (git) of this package is available.

Your welcome and thank you @banana-bred

The problem has been completely resolved for me and the package compiles and installs correctly.

@gurban Thanks for pointing this out. This should now use the 1 thread / image for testing, and oversubscribe tests even if there are not enough threads for a test. This was partially because I didn't communicate to cmake that we were using openmpi or the number of available threads..

For the opencoarrays 2.10.2-3 tests failed for me too (tests output log):

84% tests passed, 14 tests failed out of 86

Total Test time (real) =  88.88 sec

The following tests FAILED:
      6 - allocate_as_barrier_proc (Failed)
     15 - team_number (Failed)
     23 - sync_team (Failed)
     54 - syncimages_status (Failed)
     56 - sync_ring_abort_np7 (Failed)
     57 - simpleatomics (Failed)
     58 - syncall (Failed)
     59 - syncimages (Failed)
     60 - syncimages2 (Failed)
     61 - duplicate_syncimages (Failed)
     66 - source-alloc-no-sync (Failed)
     74 - issue-493-coindex-slice (Failed)
     75 - issue-488-multi-dim-cobounds-true (Failed)
     76 - issue-488-multi-dim-cobounds-false (Failed)

From the log file, it seems that all failed tests failed because of insufficient slots for mpiexec. I have a 6 cores/12 threads AMD Ryzen 5 PRO 4650G with Radeon Graphics. All tests need more than 6 slots failed for me.

This package now uses Open MPI instead of MPICH to avoid build issues. Should the MPICH build issues be resolved, I might make a separate opencoarrays-mpich package which uses MPICH.

To use OpenCoarrays :

$ caf <filename.f90>
$ cafrun -n <num_images> ./a.out

@hheinzer I'll update this and the -git version, which probably has the same issue. Thanks.

For me, building with mpich results in failed tests. If, however, I build against openmpi, all tests are successful. Furthermore, if I ignore the test and build against mpich anyway, compiled programs do not terminate cleanly (mpich related error messages are displayed). Would it be possible to make the buildpkg use openmpi instead of mpich? I also seems like openmpi is usually the default mpi dependency and that applications that use mpich have that indicated by a -mpich postfix (see for example hdf5).

opencoarrays-2.9.2 fails to build because of a dummy argument being renamed in GCC>=12; this was fixed in opencoarrays-2.9.3, see here: https://github.com/sourceryinstitute/OpenCoarrays/pull/746

I also had issues with failing tests, namely 7, 8, 9, 26, and 27. These failed after trying to free an invalid pointer and crashing. Looking through the test logs, there were other tests that incorrectly reported passing, because they managed to output "Test Passed" before trying to free an invalid pointer.

I finally managed to get the latest version (2.10.0) to build and pass all tests. The solution turned out to be rebuilding MPICH with CH3:nemesis as the communication device rather than the current default of CH4:UCX. I don't know if this is a bug in MPICH or opencoarrays, or just a simple incompatibility.

@backerman HAve you fixed the failed tests problem ? I am getting the failed test errors too in my case, The following tests FAILED: 7 - register_alloc_comp_1 (Failed) 8 - register_alloc_comp_2 (Failed) 9 - register_alloc_comp_3 (Failed) 26 - sendget_convert_nums (Failed) 27 - sendget_convert_char_array (Failed)

Pardon me, but I have to inform you that I also face the same problem on opencoarrays-2.9.2(test #26 & #27 failed). Other than that, thank you for the guidance about pgp keyserver.

Note: I use dual core processor. I run Manjaro under VMWare workstation. I change the cpu number from 1 to 4 but this didn't help either.