Hi, everyone.

I have installed the deal.ii version 8.2.1 to use SparseDirectMUMPS replace 
SparseDirectUMFPACK. It seems that I can run it in parallel like mpirun -np 
2 ./MyProgram, but standard IO std::cout is used in my code, what should I 
do to print log in terminal only once?

Best,
Chen

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