p Test compute ! output sort ! timeout 5 $ ${bindir:=.}/../../../smpi_script/bin/smpirun -hostfile ../hostfile -platform ../../../examples/platforms/small_platform.xml -np 4 ${bindir:=.}/macro-shared --log=xbt_cfg.thres:warning --log=smpi_kernel.thres:verbose "--log=root.fmt:(%P@%h)%e%m%n" > (maestro@) 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:" to set its value. Check https://simgrid.org/doc/latest/Configuring_SimGrid.html#automatic-benchmarking-of-smpi-code for more information. > (maestro@) Receiver is shared. Let's ignore it. > (maestro@) Receiver is shared. Let's ignore it. > (maestro@) Receiver is shared. Let's ignore it. > (maestro@) Receiver is shared. Let's ignore it. > [0] After change, the value in the shared buffer is: 16053117601147974045 > [0] The value in the shared buffer is: 4 > [1] After change, the value in the shared buffer is: 16053117601147974045 > [1] The value in the shared buffer is: 4 > [2] After change, the value in the shared buffer is: 16053117601147974045 > [2] The value in the shared buffer is: 4 > [3] After change, the value in the shared buffer is: 16053117601147974045 > [3] The value in the shared buffer is: 4 > hashing ! ! output sort ! timeout 5 $ ${bindir:=.}/../../../smpi_script/bin/smpirun -hostfile ../hostfile -platform ../../../examples/platforms/small_platform.xml -np 4 ${bindir:=.}/macro-shared --log=smpi_config.thres:warning --log=xbt_cfg.thres:warning --cfg=smpi/shared-malloc:local > [0] After change, the value in the shared buffer is: 16053117601147974045 > [0] The value in the shared buffer is: 4 > [1] After change, the value in the shared buffer is: 16053117601147974045 > [1] The value in the shared buffer is: 4 > [2] After change, the value in the shared buffer is: 16053117601147974045 > [2] The value in the shared buffer is: 4 > [3] After change, the value in the shared buffer is: 16053117601147974045 > [3] The value in the shared buffer is: 4 > hashing !