-> [84.068138] node-0.acme.org recv node-11.acme.org 4167312.000000 # 3@task1_o3_end
-> [0.000000] node-0.acme.org send node-1.acme.org 1000000.000000 # root_i1_1@task1
-> [0.015600] node-1.acme.org recv node-0.acme.org 1000000.000000 # root_i1_1@task1
-> [84.068138] node-0.acme.org compute 0.000000 # end
+> [84.067138] node-0.acme.org compute 0.000000 # end
+> [84.067138] node-0.acme.org recv node-11.acme.org 4167312.000000 # 3@task1_o3_end