You can use the firedrake.op2.MPI.rank_zero decorator to make a function which will only execute on rank 0.

On 8 November 2014 18:53, Cotter, Colin J <colin.cotter@imperial.ac.uk> wrote:

Dear Firedrakers,
What's the best way to modify a print statement so that only one MPI process does the print?

cheers
--cjc

Dr David Ham
Departments of Mathematics and Computing
Imperial College London

http://www.imperial.ac.uk/people/david.ham