$ ${bindir:=.}/s4u-activityset-waitall ${platfdir}/hosts_with_disks.xml "--log=root.fmt:[%7.6r]%e[%5a]%e%m%n"
> [0.000000] [alice] Send 'Message'
> [0.000000] [ bob] Create my asynchronous activities
$ ${bindir:=.}/s4u-activityset-waitall ${platfdir}/hosts_with_disks.xml "--log=root.fmt:[%7.6r]%e[%5a]%e%m%n"
> [0.000000] [alice] Send 'Message'
> [0.000000] [ bob] Create my asynchronous activities