Root-level change of cell size not allowed.

When running the test:

• mpirun -np 4 ./test_mindt_mpi -g "2 2 1" -c 0.2 -t 4 -f SedovBlast/sedov.hdf5 -m 0.02 -w 5000 -d 1e-10

The program eventually terminates with the following output:

[000] space.c:space_regrid():217: Root-level change of cell size not allowed. ( 24<25 || 24<25 || 24<25 )
[001] space.c:space_regrid():217: Root-level change of cell size not allowed. ( 24<25 || 24<25 || 24<25 )
[002] space.c:space_regrid():217: Root-level change of cell size not allowed. ( 24<25 || 24<25 || 24<25 )
[003] space.c:space_regrid():217: Root-level change of cell size not allowed. ( 24<25 || 24<25 || 24<25 )
application called MPI_Abort(MPI_COMM_WORLD, -1) - process 0
application called MPI_Abort(MPI_COMM_WORLD, -1) - process 2
application called MPI_Abort(MPI_COMM_WORLD, -1) - process 3
application called MPI_Abort(MPI_COMM_WORLD, -1) - process 1

The output in parentheses is just some additional debugging. It suggests that we're allowing h_max to get too large. Modules loaded are:

• intel_comp/c4/2015
• intel_mpi/5.0.3
• parallel_hdf5/1.8.14-mt
• metis/5.1.0

The final value of h_max is 9.151e-02.