All tests fail when the SUNDIALS option is enabled

[yurivict]

For example:

63/69 Testing: LinearSolvers_ABecLap_SP_3d
63/69 Test: LinearSolvers_ABecLap_SP_3d
Command: "/usr/ports/science/amrex/work/.bin/mpiexec" "-n" "2" "/usr/ports/science/amrex/work/.build/Tests/LinearSolvers/ABecLap_SP/3d/Test_LinearSolvers_ABecLap_SP_3d" "inputs"
Directory: /usr/ports/science/amrex/work/.build/Tests/LinearSolvers/ABecLap_SP/3d
"LinearSolvers_ABecLap_SP_3d" start time: Jun 29 23:32 PDT
Output:
----------------------------------------------------------
Initializing AMReX (26.06)...
MPI initialized with 2 MPI processes
MPI initialized with thread support level 0
Initializing SUNDIALS with 1 threads...
[yv:00000] *** An error occurred in MPI_Comm_dup
[yv:00000] *** reported by process [2088697857,1]
[yv:00000] *** on communicator MPI_COMM_WORLD
[yv:00000] *** MPI_ERR_COMM: invalid communicator
[yv:00000] *** MPI_ERRORS_ARE_FATAL (processes in this communicator will now abort,
[yv:00000] ***    and MPI will try to terminate your MPI job as well)
--------------------------------------------------------------------------
prterun has exited due to process rank 1 with PID 0 on node yv calling
"abort". This may have caused other processes in the application to be
terminated by signals sent by prterun (as reported here).
--------------------------------------------------------------------------

<end of output>
Test time =   0.59 sec
----------------------------------------------------------
Test Failed.
"LinearSolvers_ABecLap_SP_3d" end time: Jun 29 23:32 PDT
"LinearSolvers_ABecLap_SP_3d" time elapsed: 00:00:00
----------------------------------------------------------

58/69 Testing: Particles_SparseBins_3d
58/69 Test: Particles_SparseBins_3d
Command: "/usr/ports/science/amrex/work/.bin/mpiexec" "-n" "2" "/usr/ports/science/amrex/work/.build/Tests/Particles/SparseBins/3d/Test_Particles_SparseBins_3d" "inputs"
Directory: /usr/ports/science/amrex/work/.build/Tests/Particles/SparseBins/3d
"Particles_SparseBins_3d" start time: Jun 29 23:32 PDT
Output:
----------------------------------------------------------
Initializing AMReX (26.06)...
MPI initialized with 2 MPI processes
MPI initialized with thread support level 0
Segfault
Initializing SUNDIALS with 1 threads...
Segfault
--------------------------------------------------------------------------
MPI_ABORT was invoked on rank 1 in communicator MPI_COMM_WORLD
  Proc: [[32656,1],1]
  Errorcode: 11

NOTE: invoking MPI_ABORT causes Open MPI to kill all MPI processes.
You may or may not see output from other processes, depending on
exactly when Open MPI kills them.
--------------------------------------------------------------------------
--------------------------------------------------------------------------
prterun has exited due to process rank 1 with PID 0 on node yv calling
"abort". This may have caused other processes in the application to be
terminated by signals sent by prterun (as reported here).
--------------------------------------------------------------------------

<end of output>
Test time =   0.60 sec
----------------------------------------------------------
Test Failed.
"Particles_SparseBins_3d" end time: Jun 29 23:32 PDT
"Particles_SparseBins_3d" time elapsed: 00:00:00
----------------------------------------------------------

Version: 26.06
sundials-7.7.0
FreeBSD 15.1 STABLE

[WeiqunZhang]

I cannot reproduce this on my Ubuntu 24.04 with SUNDIALS 7.7.0. I tested both AMReX development and 26.06, with an MPI-enabled SUNDIALS build and a serial SUNDIALS build, and all worked.

The failure appears to happen during SUNDIALS initialization. Since the error is from MPI_Comm_dup, could you check whether there are multiple MPI installations on the system, and whether AMReX, SUNDIALS, and the mpiexec used to run the tests are all from the same MPI installation?