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(parent: 1dfe761) | patch
rework MG distribution
authorTimo Heister <timo.heister@gmail.com>
Mon, 4 Apr 2016 12:34:45 +0000 (14:34 +0200)
committerTimo Heister <timo.heister@gmail.com>
Tue, 12 Apr 2016 16:03:05 +0000 (18:03 +0200)
commit439768b5dad6263fc800c4710f2164912a702795
tree8958e5d4fbcd3c9c6d419126e26ac076b1ff64d3tree | snapshot
parent1dfe761d2b0b4856eab71267f10dcd9039489559commit | diff
rework MG distribution

Fix a rare case of missing level ghost neighbors for geometric
multigrid.

Add sanity checks to confirm several assumptions made in the code to
detect problems like this in the future.

Rework and simplify the logic of distribute_mg_dofs: don't communicate
ghost neighbors by level but all at once and instead of guessing who
will send data, actually request cells from the ghost neighbors.

Add and updated tests.
17 files changed:
source/distributed/tria.cc diff | blob | history
source/dofs/dof_handler_policy.cc diff | blob | history
tests/mpi/mg_ghost_dofs_periodic_04.with_p4est=true.mpirun=5.output diff | blob | history
tests/mpi/mg_ghost_dofs_periodic_06.mpirun=7.output diff | blob | history
tests/multigrid/constrained_dofs_02.cc [new file with mode: 0644] blob
tests/multigrid/constrained_dofs_02.mpirun=2.output [new file with mode: 0644] blob
tests/multigrid/constrained_dofs_02.mpirun=8.output [new file with mode: 0644] blob
tests/multigrid/distribute_bug_01.cc [new file with mode: 0644] blob
tests/multigrid/distribute_bug_01.with_mpi=true.with_p4est=true.mpirun=13.output [new file with mode: 0644] blob
tests/multigrid/distribute_bug_01.with_mpi=true.with_p4est=true.mpirun=2.output [new file with mode: 0644] blob
tests/multigrid/distribute_bug_01.with_mpi=true.with_p4est=true.mpirun=20.output [new file with mode: 0644] blob
tests/multigrid/distribute_bug_01.with_mpi=true.with_p4est=true.mpirun=6.output [new file with mode: 0644] blob
tests/multigrid/step-50_01.cc [new file with mode: 0644] blob
tests/multigrid/step-50_01.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=1.output [new file with mode: 0644] blob
tests/multigrid/step-50_01.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=5.output [new file with mode: 0644] blob
tests/multigrid/step-50_01.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=8.output [new file with mode: 0644] blob
tests/multigrid/transfer_04a.with_trilinos=true.mpirun=2.debug.output diff | blob | history
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