Default BoomerAMG smoothers

Man pages: add newlines after "Notes:"

This allows for proper formatting from sowing.

On OS X (using gsed, not the default BSD sed), from the PETSc root directory:

find src include -type f \(

Man pages: add newlines after "Notes:"

This allows for proper formatting from sowing.

On OS X (using gsed, not the default BSD sed), from the PETSc root directory:

find src include -type f \( -name "*.c" -or -name "*.h" -or -name "*.cxx" \) | xargs gsed -i 's/Notes\s*:\s*\(\w.*\)/Notes:\n \1/'

This adds a newline and 4 spaces whenever "Notes:" is followed by any "word" character, in any .c, .h, or .cxx file in src/ or include/

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BoomerAMG, unlike 2 other hypre preconditioners, does not require its own MPI_Comm obtained via MPI_Comm_dup()

Presumably BoomerAMG must use the communictor provided in the HYPRE matrix passed in

M

BoomerAMG, unlike 2 other hypre preconditioners, does not require its own MPI_Comm obtained via MPI_Comm_dup()

Presumably BoomerAMG must use the communictor provided in the HYPRE matrix passed in

MPI implementations have a limited number of MPI_Communicators that can co-exist, hence one should minimize the
creation MPI_Communicators and never create any unnecessarily.

Commit-type: portability-fix
Reported-by: Fande Kong <fande.kong@inl.gov>

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