https://gitweb.dealii.org/ - dealii.git/commit

]> https://gitweb.dealii.org/ - dealii.git/commit

author	Wolfgang Bangerth <bangerth@math.tamu.edu>
	Mon, 29 Sep 2014 15:12:57 +0000 (10:12 -0500)
committer	Wolfgang Bangerth <bangerth@math.tamu.edu>
	Mon, 29 Sep 2014 15:12:57 +0000 (10:12 -0500)
commit	9739e56818c47e01e6de32dcfb937cfc5f7c1167
tree	8fa5585b6130e88710c0d58c7924117039d9289b	tree \| snapshot
parent	138f4c1956a5db9f5f8f962c16b2cdbca620a828	commit \| diff

MPI_Allreduce is apparently unable to accept input and output arguments at the same location.

Fix this by determining when &input=&output and in that case pass MPI_IN_PLACE.

14 files changed:

doc/news/changes.h		diff \| blob \| history
include/deal.II/base/mpi.h		diff \| blob \| history
tests/mpi/collective_02_array_in_place.cc	[new file with mode: 0644]	blob
tests/mpi/collective_02_array_in_place.mpirun=1.output	[new file with mode: 0644]	blob
tests/mpi/collective_02_array_in_place.mpirun=10.output	[new file with mode: 0644]	blob
tests/mpi/collective_02_array_in_place.mpirun=4.output	[new file with mode: 0644]	blob
tests/mpi/collective_02_vector.cc	[new file with mode: 0644]	blob
tests/mpi/collective_02_vector.mpirun=1.output	[new file with mode: 0644]	blob
tests/mpi/collective_02_vector.mpirun=10.output	[new file with mode: 0644]	blob
tests/mpi/collective_02_vector.mpirun=4.output	[new file with mode: 0644]	blob
tests/mpi/collective_02_vector_in_place.cc	[new file with mode: 0644]	blob
tests/mpi/collective_02_vector_in_place.mpirun=1.output	[new file with mode: 0644]	blob
tests/mpi/collective_02_vector_in_place.mpirun=10.output	[new file with mode: 0644]	blob
tests/mpi/collective_02_vector_in_place.mpirun=4.output	[new file with mode: 0644]	blob

Mirror of the development repository for deal.II

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