Continental Extension Cookbook - Mesh Refinement Bug in parallel

ASPECT
1

I ran the prm file cookbooks/continental_extension/continental_extension.prm with 16 and 1 cores and the mesh refinement is not the same (see Fig. 1&2).

mpi-n-1
mpi-n-11368×1354 206 KB

Fig. 1: continental extension cookbook after timestep 0 running with 1 MPI process

mpi-n-16
mpi-n-161368×1354 209 KB

Fig. 2: continental extension cookbook after timestep 0 running with 16 MPI processes

-----------------------------------------------------------------------------
-- This is ASPECT, the Advanced Solver for Problems in Earth's ConvecTion.
--     . version 2.4.0-pre (main, 48f12261d)
--     . using deal.II 9.3.3 (dealii-9.3, 7987f7338d)
--     .       with 32 bit indices and vectorization level 1 (128 bits)
--     . using Trilinos 12.14.1
--     . using p4est 2.2.0
--     . running in OPTIMIZED mode
--     . running with 16 MPI processes
-----------------------------------------------------------------------------
2

Thank you for the great bug report. I was able to fix this in

You might need to wait until it is merged into the devolpment version, though.