+$ ${bindir:=.}/../../../bin/smpirun -map -hostfile ../hostfile_coll -platform ../../../examples/platforms/small_platform.xml -np 16 --log=xbt_cfg.thres:critical ${bindir:=.}/allreduce_coll --log=smpi_kernel.thres:warning --log=smpi_coll.thres:error --cfg=smpi/allreduce:automatic --cfg=smpi/async_small_thresh:65536 --cfg=smpi/send_is_detached_thresh:128000 --cfg=smpi/running_power:-1 "--log=root.fmt:[%10.6r]%e(%i:%P@%h)%e%m%n"
+> [ 0.420130] (5:4@Jupiter) The quickest allreduce was redbcast on rank 4 and took 0.007482
+> [ 0.420130] (6:5@Jupiter) The quickest allreduce was redbcast on rank 5 and took 0.007513
+> [ 0.420130] (7:6@Jupiter) The quickest allreduce was redbcast on rank 6 and took 0.007513
+> [ 0.420130] (8:7@Jupiter) The quickest allreduce was redbcast on rank 7 and took 0.007543
+> [ 0.420342] (13:12@Ginette) The quickest allreduce was mvapich2_two_level on rank 12 and took 0.007247
+> [ 0.420342] (14:13@Ginette) The quickest allreduce was mvapich2_two_level on rank 13 and took 0.007278
+> [ 0.420342] (15:14@Ginette) The quickest allreduce was mvapich2_two_level on rank 14 and took 0.007278
+> [ 0.420342] (16:15@Ginette) The quickest allreduce was ompi on rank 15 and took 0.007263
+> [ 0.421734] (2:1@Tremblay) The quickest allreduce was redbcast on rank 1 and took 0.006004
+> [ 0.421734] (3:2@Tremblay) The quickest allreduce was redbcast on rank 2 and took 0.006004
+> [ 0.421734] (4:3@Tremblay) The quickest allreduce was redbcast on rank 3 and took 0.006034
+> [ 0.422884] (10:9@Fafard) The quickest allreduce was mvapich2_two_level on rank 9 and took 0.006492
+> [ 0.422884] (11:10@Fafard) The quickest allreduce was mvapich2_two_level on rank 10 and took 0.006492
+> [ 0.422884] (12:11@Fafard) The quickest allreduce was mvapich2_two_level on rank 11 and took 0.006523
+> [ 0.422884] (9:8@Fafard) The quickest allreduce was mvapich2_two_level on rank 8 and took 0.006462
+> [ 0.426869] (1:0@Tremblay) For rank 0, the quickest was redbcast : 0.005988 , but global was mvapich2_two_level : 0.008672 at max
+> [0] rcvbuf=[1920 1936 1952 1968 1984 2000 2016 2032 2048 2064 2080 2096 2112 2128 2144 2160 ]