Ex. 1 master_worker instructions

2021-04-12 14:49:43 +02:00
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+Exercise: Rotating information around a ring
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+- A set of processes are arranged in a ring.
+
+- Each process stores its rank in MPI_COMM_WORLD in an integer.
+
+- Each process passes this on to its neighbour on the right.
+
+- Keep passing what is received until the own rank is back where it started.
+
+- Each processor calculates the sum of the values.