[wenxu]

Hello, everyone.

Could anyone give me some hints how to gather statistics from different processors? e.g. the first two numbers of the list are calculated on processor 0, the second two numbers of the list are calculated on processor 1, etc. In other words, we have 8 cells of a computational domain and split the domain into 4 partitions.

processor 0: 8 (1 1 0 0 0 0 0 0);
processor 1: 8 (0 0 2 2 0 0 0 0);
processor 2: 8 (0 0 0 0 3 3 0 0);
processor 3: 8 (0 0 0 0 0 0 4 4);

Then how can I gather the list from all processors like: 8 (1 1 2 2 3 3 4 4)?

Any suggestion is appreciated! Thank you in advance!

regards,
wenxu