]> https://gitweb.dealii.org/ - dealii.git/commitdiff
Update a comment. 5369/head
authorWolfgang Bangerth <bangerth@colostate.edu>
Tue, 31 Oct 2017 21:44:39 +0000 (15:44 -0600)
committerWolfgang Bangerth <bangerth@colostate.edu>
Wed, 1 Nov 2017 16:19:21 +0000 (10:19 -0600)
include/deal.II/base/mpi.h

index 8afff6e2c5ae09d5cb0359b8a8b3be521bd88a8a..f931f23d637641c099ab15ab57040a12c19e8352 100644 (file)
@@ -164,6 +164,15 @@ namespace Utilities
               const MPI_Comm &mpi_communicator,
               T (&sums)[N]);
 
+    /**
+     * Like the previous function, but take the sums over the elements of an
+     * array as specified by the ArrayView arguments.
+     * In other words, the i-th element of the results
+     * array is the sum over the i-th entries of the input arrays from each
+     * processor.
+     *
+     * Input and output arrays may be the same.
+     */
     template <typename T>
     void sum (const ArrayView<const T> &values,
               const MPI_Comm           &mpi_communicator,

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