P0 P1 0 0 1 1 P2 P3 2 2 3 3 \color{red}commA \color{red}color = red \color{green}commB \color{green}color = green peer_rank=0 peer_rank=1 leader change P0 P1 0 0 1 1 P2 P3 2 2 3 3 \color{red}commA \color{red}color = red \color{green}commB \color{green}color = green P0 P1 1 0 0 1 P2 P0 2 3 5 4 \color{red}commA' \color{green}commB' process regroup intercomm create world_rank=0 world_rank=1 commA'_mpi = {P0, P1, P2} commB'_mpi = {P0} inter_comm_mpi = {(P0), (P0, P1, P2)} false true 50 1.0 cm false 10 0 true true true 2.0.8 1867 1176 53 24 0.9748259239421532 true true true 138