p Test the replay with multiple instances 

p first generate the deployment file
$ ${srcdir:=.}/generate_multiple_deployment.sh -platform ${srcdir:=.}/../../platforms/small_platform_with_routers.xml -hostfile ${srcdir:=.}/../hostfile  ${srcdir:=.}/description_file ${bindir:=.}/deployment.xml

p This test needs maxmin/concurrency-limit=100 because it starts 64 hosts on 5 machines.
! timeout 120
$ ./replay_multiple description_file ${srcdir:=.}/../../platforms/small_platform_with_routers.xml ${bindir:=.}/deployment.xml --log=smpi.:info --cfg=maxmin/concurrency-limit:100
> [0.000000] [xbt_cfg/INFO] Configuration change: Set 'maxmin/concurrency-limit' to '100'
> [0.000000] [msg_test/INFO] Initializing instance 1 of size 32
> [0.000000] [msg_test/INFO] Initializing instance 2 of size 32
> [0.000000] [smpi_kernel/INFO] You did not set the power of the host running the simulation.  The timings will certainly not be accurate.  Use the option "--cfg=smpi/host-speed:<flops>" to set its value.Check http://simgrid.org/simgrid/latest/doc/options.html#options_smpi_bench for more information.
> [Jupiter:2:(62) 1140698.106357] [smpi_replay/INFO] Simulation time 1124380.753685
> [1140698.106357] [msg_test/INFO] Simulation time 1.1407e+06