0 init
1 init
2 init

0 allToAllV 100 1 40 30 1000 1 80 100
1 allToAllV 1000 80 1 40 1000 40 1 30
2 allToAllV 1000 100 30 1 1000 30 40 1

0 finalize
1 finalize
2 finalize