On 05/04/2017 02:45 PM, Weixiong Zheng wrote:
Great! I looked at Utilities::MPI::sum() and it might be exactly what I
need.
Do I use it in this way?
double global_quantity = 0;
for locally_owned_cell
quantity += local_cell_contribution
Utilities::MPI::sum(global_quantity, mpi_communicator);
Yes, this is exactly how it's done (though you need to assign the result
of the last call to something), i.e.
global_quantity = Utilities::MPI::sum(quantity, mpi_communicator);
Best
W.
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Wolfgang Bangerth email: [email protected]
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